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-rw-r--r--drivers/gpio/Kconfig38
-rw-r--r--drivers/gpio/Makefile5
-rw-r--r--drivers/gpio/gpio-74x164.c6
-rw-r--r--drivers/gpio/gpio-ab8500.c6
-rw-r--r--drivers/gpio/gpio-adnp.c10
-rw-r--r--drivers/gpio/gpio-adp5520.c6
-rw-r--r--drivers/gpio/gpio-adp5588.c6
-rw-r--r--drivers/gpio/gpio-arizona.c6
-rw-r--r--drivers/gpio/gpio-clps711x.c199
-rw-r--r--drivers/gpio/gpio-cs5535.c6
-rw-r--r--drivers/gpio/gpio-da9052.c8
-rw-r--r--drivers/gpio/gpio-da9055.c204
-rw-r--r--drivers/gpio/gpio-em.c54
-rw-r--r--drivers/gpio/gpio-ep93xx.c2
-rw-r--r--drivers/gpio/gpio-generic.c6
-rw-r--r--drivers/gpio/gpio-ich.c10
-rw-r--r--drivers/gpio/gpio-janz-ttl.c10
-rw-r--r--drivers/gpio/gpio-langwell.c8
-rw-r--r--drivers/gpio/gpio-lpc32xx.c4
-rw-r--r--drivers/gpio/gpio-max7300.c6
-rw-r--r--drivers/gpio/gpio-max7301.c6
-rw-r--r--drivers/gpio/gpio-max730x.c16
-rw-r--r--drivers/gpio/gpio-max732x.c8
-rw-r--r--drivers/gpio/gpio-mc33880.c6
-rw-r--r--drivers/gpio/gpio-mcp23s08.c12
-rw-r--r--drivers/gpio/gpio-ml-ioh.c8
-rw-r--r--drivers/gpio/gpio-mpc5200.c4
-rw-r--r--drivers/gpio/gpio-msic.c2
-rw-r--r--drivers/gpio/gpio-msm-v2.c6
-rw-r--r--drivers/gpio/gpio-mvebu.c36
-rw-r--r--drivers/gpio/gpio-mxc.c4
-rw-r--r--drivers/gpio/gpio-mxs.c2
-rw-r--r--drivers/gpio/gpio-omap.c8
-rw-r--r--drivers/gpio/gpio-pca953x.c61
-rw-r--r--drivers/gpio/gpio-pcf857x.c29
-rw-r--r--drivers/gpio/gpio-pch.c9
-rw-r--r--drivers/gpio/gpio-pl061.c66
-rw-r--r--drivers/gpio/gpio-pxa.c6
-rw-r--r--drivers/gpio/gpio-rc5t583.c6
-rw-r--r--drivers/gpio/gpio-rdc321x.c6
-rw-r--r--drivers/gpio/gpio-sch.c6
-rw-r--r--drivers/gpio/gpio-sodaville.c4
-rw-r--r--drivers/gpio/gpio-spear-spics.c217
-rw-r--r--drivers/gpio/gpio-sta2x11.c4
-rw-r--r--drivers/gpio/gpio-stmpe.c94
-rw-r--r--drivers/gpio/gpio-stp-xway.c2
-rw-r--r--drivers/gpio/gpio-sx150x.c6
-rw-r--r--drivers/gpio/gpio-tc3589x.c26
-rw-r--r--drivers/gpio/gpio-tegra.c47
-rw-r--r--drivers/gpio/gpio-timberdale.c4
-rw-r--r--drivers/gpio/gpio-tps6586x.c6
-rw-r--r--drivers/gpio/gpio-tps65910.c6
-rw-r--r--drivers/gpio/gpio-tps65912.c6
-rw-r--r--drivers/gpio/gpio-ts5500.c466
-rw-r--r--drivers/gpio/gpio-twl4030.c43
-rw-r--r--drivers/gpio/gpio-twl6040.c4
-rw-r--r--drivers/gpio/gpio-vr41xx.c6
-rw-r--r--drivers/gpio/gpio-vt8500.c4
-rw-r--r--drivers/gpio/gpio-vx855.c6
-rw-r--r--drivers/gpio/gpio-wm831x.c6
-rw-r--r--drivers/gpio/gpio-wm8350.c6
-rw-r--r--drivers/gpio/gpio-wm8994.c6
-rw-r--r--drivers/gpio/gpio-xilinx.c4
-rw-r--r--drivers/gpio/gpiolib-acpi.c54
-rw-r--r--drivers/gpio/gpiolib-of.c52
-rw-r--r--drivers/gpio/gpiolib.c200
66 files changed, 1788 insertions, 398 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index f11d8e3b4041..14a6c2913e49 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -49,6 +49,10 @@ config OF_GPIO
def_bool y
depends on OF
+config GPIO_ACPI
+ def_bool y
+ depends on ACPI
+
config DEBUG_GPIO
bool "Debug GPIO calls"
depends on DEBUG_KERNEL
@@ -86,11 +90,26 @@ config GPIO_DA9052
help
Say yes here to enable the GPIO driver for the DA9052 chip.
+config GPIO_DA9055
+ tristate "Dialog Semiconductor DA9055 GPIO"
+ depends on MFD_DA9055
+ help
+ Say yes here to enable the GPIO driver for the DA9055 chip.
+
+ The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
+ be controller by this driver.
+
+ If driver is built as a module it will be called gpio-da9055.
+
config GPIO_MAX730X
tristate
comment "Memory mapped GPIO drivers:"
+config GPIO_CLPS711X
+ def_bool y
+ depends on ARCH_CLPS711X
+
config GPIO_GENERIC_PLATFORM
tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
select GPIO_GENERIC
@@ -170,7 +189,7 @@ config GPIO_MXS
config GPIO_PL061
bool "PrimeCell PL061 GPIO support"
- depends on ARM_AMBA
+ depends on ARM && ARM_AMBA
select GENERIC_IRQ_CHIP
help
Say yes here to support the PrimeCell PL061 GPIO device
@@ -181,6 +200,13 @@ config GPIO_PXA
help
Say yes here to support the PXA GPIO device
+config GPIO_SPEAR_SPICS
+ bool "ST SPEAr13xx SPI Chip Select as GPIO support"
+ depends on PLAT_SPEAR
+ select GENERIC_IRQ_CHIP
+ help
+ Say yes here to support ST SPEAr SPI Chip Select as GPIO device
+
config GPIO_STA2X11
bool "STA2x11/ConneXt GPIO support"
depends on MFD_STA2X11
@@ -189,6 +215,14 @@ config GPIO_STA2X11
Say yes here to support the STA2x11/ConneXt GPIO device.
The GPIO module has 128 GPIO pins with alternate functions.
+config GPIO_TS5500
+ tristate "TS-5500 DIO blocks and compatibles"
+ help
+ This driver supports Digital I/O exposed by pin blocks found on some
+ Technologic Systems platforms. It includes, but is not limited to, 3
+ blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
+ LCD port.
+
config GPIO_VT8500
bool "VIA/Wondermedia SoC GPIO Support"
depends on ARCH_VT8500
@@ -466,7 +500,7 @@ config GPIO_ADP5588_IRQ
config GPIO_ADNP
tristate "Avionic Design N-bit GPIO expander"
- depends on I2C && OF
+ depends on I2C && OF_GPIO
help
This option enables support for N GPIOs found on Avionic Design
I2C GPIO expanders. The register space will be extended by powers
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 9aeed6707326..76b344683251 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -4,6 +4,7 @@ ccflags-$(CONFIG_DEBUG_GPIO) += -DDEBUG
obj-$(CONFIG_GPIOLIB) += gpiolib.o devres.o
obj-$(CONFIG_OF_GPIO) += gpiolib-of.o
+obj-$(CONFIG_GPIO_ACPI) += gpiolib-acpi.o
# Device drivers. Generally keep list sorted alphabetically
obj-$(CONFIG_GPIO_GENERIC) += gpio-generic.o
@@ -16,8 +17,10 @@ obj-$(CONFIG_GPIO_ADP5588) += gpio-adp5588.o
obj-$(CONFIG_GPIO_AMD8111) += gpio-amd8111.o
obj-$(CONFIG_GPIO_ARIZONA) += gpio-arizona.o
obj-$(CONFIG_GPIO_BT8XX) += gpio-bt8xx.o
+obj-$(CONFIG_GPIO_CLPS711X) += gpio-clps711x.o
obj-$(CONFIG_GPIO_CS5535) += gpio-cs5535.o
obj-$(CONFIG_GPIO_DA9052) += gpio-da9052.o
+obj-$(CONFIG_GPIO_DA9055) += gpio-da9055.o
obj-$(CONFIG_ARCH_DAVINCI) += gpio-davinci.o
obj-$(CONFIG_GPIO_EM) += gpio-em.o
obj-$(CONFIG_GPIO_EP93XX) += gpio-ep93xx.o
@@ -57,6 +60,7 @@ obj-$(CONFIG_PLAT_SAMSUNG) += gpio-samsung.o
obj-$(CONFIG_ARCH_SA1100) += gpio-sa1100.o
obj-$(CONFIG_GPIO_SCH) += gpio-sch.o
obj-$(CONFIG_GPIO_SODAVILLE) += gpio-sodaville.o
+obj-$(CONFIG_GPIO_SPEAR_SPICS) += gpio-spear-spics.o
obj-$(CONFIG_GPIO_STA2X11) += gpio-sta2x11.o
obj-$(CONFIG_GPIO_STMPE) += gpio-stmpe.o
obj-$(CONFIG_GPIO_STP_XWAY) += gpio-stp-xway.o
@@ -68,6 +72,7 @@ obj-$(CONFIG_ARCH_DAVINCI_TNETV107X) += gpio-tnetv107x.o
obj-$(CONFIG_GPIO_TPS6586X) += gpio-tps6586x.o
obj-$(CONFIG_GPIO_TPS65910) += gpio-tps65910.o
obj-$(CONFIG_GPIO_TPS65912) += gpio-tps65912.o
+obj-$(CONFIG_GPIO_TS5500) += gpio-ts5500.o
obj-$(CONFIG_GPIO_TWL4030) += gpio-twl4030.o
obj-$(CONFIG_GPIO_TWL6040) += gpio-twl6040.o
obj-$(CONFIG_GPIO_UCB1400) += gpio-ucb1400.o
diff --git a/drivers/gpio/gpio-74x164.c b/drivers/gpio/gpio-74x164.c
index f05e54258ffb..464be961f605 100644
--- a/drivers/gpio/gpio-74x164.c
+++ b/drivers/gpio/gpio-74x164.c
@@ -105,7 +105,7 @@ static int gen_74x164_direction_output(struct gpio_chip *gc,
return 0;
}
-static int __devinit gen_74x164_probe(struct spi_device *spi)
+static int gen_74x164_probe(struct spi_device *spi)
{
struct gen_74x164_chip *chip;
struct gen_74x164_chip_platform_data *pdata;
@@ -181,7 +181,7 @@ exit_destroy:
return ret;
}
-static int __devexit gen_74x164_remove(struct spi_device *spi)
+static int gen_74x164_remove(struct spi_device *spi)
{
struct gen_74x164_chip *chip;
int ret;
@@ -215,7 +215,7 @@ static struct spi_driver gen_74x164_driver = {
.of_match_table = of_match_ptr(gen_74x164_dt_ids),
},
.probe = gen_74x164_probe,
- .remove = __devexit_p(gen_74x164_remove),
+ .remove = gen_74x164_remove,
};
module_spi_driver(gen_74x164_driver);
diff --git a/drivers/gpio/gpio-ab8500.c b/drivers/gpio/gpio-ab8500.c
index 050c05d91896..983ad425f0ac 100644
--- a/drivers/gpio/gpio-ab8500.c
+++ b/drivers/gpio/gpio-ab8500.c
@@ -402,7 +402,7 @@ static void ab8500_gpio_irq_remove(struct ab8500_gpio *ab8500_gpio)
}
}
-static int __devinit ab8500_gpio_probe(struct platform_device *pdev)
+static int ab8500_gpio_probe(struct platform_device *pdev)
{
struct ab8500_platform_data *ab8500_pdata =
dev_get_platdata(pdev->dev.parent);
@@ -474,7 +474,7 @@ out_free:
* ab8500_gpio_remove() - remove Ab8500-gpio driver
* @pdev : Platform device registered
*/
-static int __devexit ab8500_gpio_remove(struct platform_device *pdev)
+static int ab8500_gpio_remove(struct platform_device *pdev)
{
struct ab8500_gpio *ab8500_gpio = platform_get_drvdata(pdev);
int ret;
@@ -499,7 +499,7 @@ static struct platform_driver ab8500_gpio_driver = {
.owner = THIS_MODULE,
},
.probe = ab8500_gpio_probe,
- .remove = __devexit_p(ab8500_gpio_remove),
+ .remove = ab8500_gpio_remove,
};
static int __init ab8500_gpio_init(void)
diff --git a/drivers/gpio/gpio-adnp.c b/drivers/gpio/gpio-adnp.c
index 3df88336415e..e60567fc5073 100644
--- a/drivers/gpio/gpio-adnp.c
+++ b/drivers/gpio/gpio-adnp.c
@@ -516,7 +516,7 @@ static void adnp_irq_teardown(struct adnp *adnp)
irq_domain_remove(adnp->domain);
}
-static __devinit int adnp_i2c_probe(struct i2c_client *client,
+static int adnp_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device_node *np = client->dev.of_node;
@@ -563,7 +563,7 @@ teardown:
return err;
}
-static __devexit int adnp_i2c_remove(struct i2c_client *client)
+static int adnp_i2c_remove(struct i2c_client *client)
{
struct adnp *adnp = i2c_get_clientdata(client);
struct device_node *np = client->dev.of_node;
@@ -582,13 +582,13 @@ static __devexit int adnp_i2c_remove(struct i2c_client *client)
return 0;
}
-static const struct i2c_device_id adnp_i2c_id[] __devinitconst = {
+static const struct i2c_device_id adnp_i2c_id[] = {
{ "gpio-adnp" },
{ },
};
MODULE_DEVICE_TABLE(i2c, adnp_i2c_id);
-static const struct of_device_id adnp_of_match[] __devinitconst = {
+static const struct of_device_id adnp_of_match[] = {
{ .compatible = "ad,gpio-adnp", },
{ },
};
@@ -601,7 +601,7 @@ static struct i2c_driver adnp_i2c_driver = {
.of_match_table = of_match_ptr(adnp_of_match),
},
.probe = adnp_i2c_probe,
- .remove = __devexit_p(adnp_i2c_remove),
+ .remove = adnp_i2c_remove,
.id_table = adnp_i2c_id,
};
module_i2c_driver(adnp_i2c_driver);
diff --git a/drivers/gpio/gpio-adp5520.c b/drivers/gpio/gpio-adp5520.c
index 2f263cc32561..8afa95f831b1 100644
--- a/drivers/gpio/gpio-adp5520.c
+++ b/drivers/gpio/gpio-adp5520.c
@@ -87,7 +87,7 @@ static int adp5520_gpio_direction_output(struct gpio_chip *chip,
return ret;
}
-static int __devinit adp5520_gpio_probe(struct platform_device *pdev)
+static int adp5520_gpio_probe(struct platform_device *pdev)
{
struct adp5520_gpio_platform_data *pdata = pdev->dev.platform_data;
struct adp5520_gpio *dev;
@@ -167,7 +167,7 @@ err:
return ret;
}
-static int __devexit adp5520_gpio_remove(struct platform_device *pdev)
+static int adp5520_gpio_remove(struct platform_device *pdev)
{
struct adp5520_gpio *dev;
int ret;
@@ -190,7 +190,7 @@ static struct platform_driver adp5520_gpio_driver = {
.owner = THIS_MODULE,
},
.probe = adp5520_gpio_probe,
- .remove = __devexit_p(adp5520_gpio_remove),
+ .remove = adp5520_gpio_remove,
};
module_platform_driver(adp5520_gpio_driver);
diff --git a/drivers/gpio/gpio-adp5588.c b/drivers/gpio/gpio-adp5588.c
index eeedad42913e..2ba56987db04 100644
--- a/drivers/gpio/gpio-adp5588.c
+++ b/drivers/gpio/gpio-adp5588.c
@@ -346,7 +346,7 @@ static void adp5588_irq_teardown(struct adp5588_gpio *dev)
}
#endif /* CONFIG_GPIO_ADP5588_IRQ */
-static int __devinit adp5588_gpio_probe(struct i2c_client *client,
+static int adp5588_gpio_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct adp5588_gpio_platform_data *pdata = client->dev.platform_data;
@@ -438,7 +438,7 @@ err:
return ret;
}
-static int __devexit adp5588_gpio_remove(struct i2c_client *client)
+static int adp5588_gpio_remove(struct i2c_client *client)
{
struct adp5588_gpio_platform_data *pdata = client->dev.platform_data;
struct adp5588_gpio *dev = i2c_get_clientdata(client);
@@ -479,7 +479,7 @@ static struct i2c_driver adp5588_gpio_driver = {
.name = DRV_NAME,
},
.probe = adp5588_gpio_probe,
- .remove = __devexit_p(adp5588_gpio_remove),
+ .remove = adp5588_gpio_remove,
.id_table = adp5588_gpio_id,
};
diff --git a/drivers/gpio/gpio-arizona.c b/drivers/gpio/gpio-arizona.c
index 8740d2eb06f8..0ea853f68db2 100644
--- a/drivers/gpio/gpio-arizona.c
+++ b/drivers/gpio/gpio-arizona.c
@@ -94,7 +94,7 @@ static struct gpio_chip template_chip = {
.can_sleep = 1,
};
-static int __devinit arizona_gpio_probe(struct platform_device *pdev)
+static int arizona_gpio_probe(struct platform_device *pdev)
{
struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
struct arizona_pdata *pdata = arizona->dev->platform_data;
@@ -141,7 +141,7 @@ err:
return ret;
}
-static int __devexit arizona_gpio_remove(struct platform_device *pdev)
+static int arizona_gpio_remove(struct platform_device *pdev)
{
struct arizona_gpio *arizona_gpio = platform_get_drvdata(pdev);
@@ -152,7 +152,7 @@ static struct platform_driver arizona_gpio_driver = {
.driver.name = "arizona-gpio",
.driver.owner = THIS_MODULE,
.probe = arizona_gpio_probe,
- .remove = __devexit_p(arizona_gpio_remove),
+ .remove = arizona_gpio_remove,
};
module_platform_driver(arizona_gpio_driver);
diff --git a/drivers/gpio/gpio-clps711x.c b/drivers/gpio/gpio-clps711x.c
new file mode 100644
index 000000000000..ce63b75b13f5
--- /dev/null
+++ b/drivers/gpio/gpio-clps711x.c
@@ -0,0 +1,199 @@
+/*
+ * CLPS711X GPIO driver
+ *
+ * Copyright (C) 2012 Alexander Shiyan <shc_work@mail.ru>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/platform_device.h>
+
+#include <mach/hardware.h>
+
+#define CLPS711X_GPIO_PORTS 5
+#define CLPS711X_GPIO_NAME "gpio-clps711x"
+
+struct clps711x_gpio {
+ struct gpio_chip chip[CLPS711X_GPIO_PORTS];
+ spinlock_t lock;
+};
+
+static void __iomem *clps711x_ports[] = {
+ CLPS711X_VIRT_BASE + PADR,
+ CLPS711X_VIRT_BASE + PBDR,
+ CLPS711X_VIRT_BASE + PCDR,
+ CLPS711X_VIRT_BASE + PDDR,
+ CLPS711X_VIRT_BASE + PEDR,
+};
+
+static void __iomem *clps711x_pdirs[] = {
+ CLPS711X_VIRT_BASE + PADDR,
+ CLPS711X_VIRT_BASE + PBDDR,
+ CLPS711X_VIRT_BASE + PCDDR,
+ CLPS711X_VIRT_BASE + PDDDR,
+ CLPS711X_VIRT_BASE + PEDDR,
+};
+
+#define clps711x_port(x) clps711x_ports[x->base / 8]
+#define clps711x_pdir(x) clps711x_pdirs[x->base / 8]
+
+static int gpio_clps711x_get(struct gpio_chip *chip, unsigned offset)
+{
+ return !!(readb(clps711x_port(chip)) & (1 << offset));
+}
+
+static void gpio_clps711x_set(struct gpio_chip *chip, unsigned offset,
+ int value)
+{
+ int tmp;
+ unsigned long flags;
+ struct clps711x_gpio *gpio = dev_get_drvdata(chip->dev);
+
+ spin_lock_irqsave(&gpio->lock, flags);
+ tmp = readb(clps711x_port(chip)) & ~(1 << offset);
+ if (value)
+ tmp |= 1 << offset;
+ writeb(tmp, clps711x_port(chip));
+ spin_unlock_irqrestore(&gpio->lock, flags);
+}
+
+static int gpio_clps711x_dir_in(struct gpio_chip *chip, unsigned offset)
+{
+ int tmp;
+ unsigned long flags;
+ struct clps711x_gpio *gpio = dev_get_drvdata(chip->dev);
+
+ spin_lock_irqsave(&gpio->lock, flags);
+ tmp = readb(clps711x_pdir(chip)) & ~(1 << offset);
+ writeb(tmp, clps711x_pdir(chip));
+ spin_unlock_irqrestore(&gpio->lock, flags);
+
+ return 0;
+}
+
+static int gpio_clps711x_dir_out(struct gpio_chip *chip, unsigned offset,
+ int value)
+{
+ int tmp;
+ unsigned long flags;
+ struct clps711x_gpio *gpio = dev_get_drvdata(chip->dev);
+
+ spin_lock_irqsave(&gpio->lock, flags);
+ tmp = readb(clps711x_pdir(chip)) | (1 << offset);
+ writeb(tmp, clps711x_pdir(chip));
+ tmp = readb(clps711x_port(chip)) & ~(1 << offset);
+ if (value)
+ tmp |= 1 << offset;
+ writeb(tmp, clps711x_port(chip));
+ spin_unlock_irqrestore(&gpio->lock, flags);
+
+ return 0;
+}
+
+static int gpio_clps711x_dir_in_inv(struct gpio_chip *chip, unsigned offset)
+{
+ int tmp;
+ unsigned long flags;
+ struct clps711x_gpio *gpio = dev_get_drvdata(chip->dev);
+
+ spin_lock_irqsave(&gpio->lock, flags);
+ tmp = readb(clps711x_pdir(chip)) | (1 << offset);
+ writeb(tmp, clps711x_pdir(chip));
+ spin_unlock_irqrestore(&gpio->lock, flags);
+
+ return 0;
+}
+
+static int gpio_clps711x_dir_out_inv(struct gpio_chip *chip, unsigned offset,
+ int value)
+{
+ int tmp;
+ unsigned long flags;
+ struct clps711x_gpio *gpio = dev_get_drvdata(chip->dev);
+
+ spin_lock_irqsave(&gpio->lock, flags);
+ tmp = readb(clps711x_pdir(chip)) & ~(1 << offset);
+ writeb(tmp, clps711x_pdir(chip));
+ tmp = readb(clps711x_port(chip)) & ~(1 << offset);
+ if (value)
+ tmp |= 1 << offset;
+ writeb(tmp, clps711x_port(chip));
+ spin_unlock_irqrestore(&gpio->lock, flags);
+
+ return 0;
+}
+
+static struct {
+ char *name;
+ int nr;
+ int inv_dir;
+} clps711x_gpio_ports[] __initconst = {
+ { "PORTA", 8, 0, },
+ { "PORTB", 8, 0, },
+ { "PORTC", 8, 0, },
+ { "PORTD", 8, 1, },
+ { "PORTE", 3, 0, },
+};
+
+static int __init gpio_clps711x_init(void)
+{
+ int i;
+ struct platform_device *pdev;
+ struct clps711x_gpio *gpio;
+
+ pdev = platform_device_alloc(CLPS711X_GPIO_NAME, 0);
+ if (!pdev) {
+ pr_err("Cannot create platform device: %s\n",
+ CLPS711X_GPIO_NAME);
+ return -ENOMEM;
+ }
+
+ platform_device_add(pdev);
+
+ gpio = devm_kzalloc(&pdev->dev, sizeof(struct clps711x_gpio),
+ GFP_KERNEL);
+ if (!gpio) {
+ dev_err(&pdev->dev, "GPIO allocating memory error\n");
+ platform_device_unregister(pdev);
+ return -ENOMEM;
+ }
+
+ platform_set_drvdata(pdev, gpio);
+
+ spin_lock_init(&gpio->lock);
+
+ for (i = 0; i < CLPS711X_GPIO_PORTS; i++) {
+ gpio->chip[i].owner = THIS_MODULE;
+ gpio->chip[i].dev = &pdev->dev;
+ gpio->chip[i].label = clps711x_gpio_ports[i].name;
+ gpio->chip[i].base = i * 8;
+ gpio->chip[i].ngpio = clps711x_gpio_ports[i].nr;
+ gpio->chip[i].get = gpio_clps711x_get;
+ gpio->chip[i].set = gpio_clps711x_set;
+ if (!clps711x_gpio_ports[i].inv_dir) {
+ gpio->chip[i].direction_input = gpio_clps711x_dir_in;
+ gpio->chip[i].direction_output = gpio_clps711x_dir_out;
+ } else {
+ gpio->chip[i].direction_input = gpio_clps711x_dir_in_inv;
+ gpio->chip[i].direction_output = gpio_clps711x_dir_out_inv;
+ }
+ WARN_ON(gpiochip_add(&gpio->chip[i]));
+ }
+
+ dev_info(&pdev->dev, "GPIO driver initialized\n");
+
+ return 0;
+}
+arch_initcall(gpio_clps711x_init);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Alexander Shiyan <shc_work@mail.ru>");
+MODULE_DESCRIPTION("CLPS711X GPIO driver");
diff --git a/drivers/gpio/gpio-cs5535.c b/drivers/gpio/gpio-cs5535.c
index 19eda1bbe343..c0a3aeba6f21 100644
--- a/drivers/gpio/gpio-cs5535.c
+++ b/drivers/gpio/gpio-cs5535.c
@@ -300,7 +300,7 @@ static struct cs5535_gpio_chip cs5535_gpio_chip = {
},
};
-static int __devinit cs5535_gpio_probe(struct platform_device *pdev)
+static int cs5535_gpio_probe(struct platform_device *pdev)
{
struct resource *res;
int err = -EIO;
@@ -355,7 +355,7 @@ done:
return err;
}
-static int __devexit cs5535_gpio_remove(struct platform_device *pdev)
+static int cs5535_gpio_remove(struct platform_device *pdev)
{
struct resource *r;
int err;
@@ -378,7 +378,7 @@ static struct platform_driver cs5535_gpio_driver = {
.owner = THIS_MODULE,
},
.probe = cs5535_gpio_probe,
- .remove = __devexit_p(cs5535_gpio_remove),
+ .remove = cs5535_gpio_remove,
};
module_platform_driver(cs5535_gpio_driver);
diff --git a/drivers/gpio/gpio-da9052.c b/drivers/gpio/gpio-da9052.c
index 24b8c2974047..a05aacd2777a 100644
--- a/drivers/gpio/gpio-da9052.c
+++ b/drivers/gpio/gpio-da9052.c
@@ -188,7 +188,7 @@ static int da9052_gpio_to_irq(struct gpio_chip *gc, u32 offset)
return da9052->irq_base + DA9052_IRQ_GPI0 + offset;
}
-static struct gpio_chip reference_gp __devinitdata = {
+static struct gpio_chip reference_gp = {
.label = "da9052-gpio",
.owner = THIS_MODULE,
.get = da9052_gpio_get,
@@ -201,7 +201,7 @@ static struct gpio_chip reference_gp __devinitdata = {
.base = -1,
};
-static int __devinit da9052_gpio_probe(struct platform_device *pdev)
+static int da9052_gpio_probe(struct platform_device *pdev)
{
struct da9052_gpio *gpio;
struct da9052_pdata *pdata;
@@ -229,7 +229,7 @@ static int __devinit da9052_gpio_probe(struct platform_device *pdev)
return 0;
}
-static int __devexit da9052_gpio_remove(struct platform_device *pdev)
+static int da9052_gpio_remove(struct platform_device *pdev)
{
struct da9052_gpio *gpio = platform_get_drvdata(pdev);
@@ -238,7 +238,7 @@ static int __devexit da9052_gpio_remove(struct platform_device *pdev)
static struct platform_driver da9052_gpio_driver = {
.probe = da9052_gpio_probe,
- .remove = __devexit_p(da9052_gpio_remove),
+ .remove = da9052_gpio_remove,
.driver = {
.name = "da9052-gpio",
.owner = THIS_MODULE,
diff --git a/drivers/gpio/gpio-da9055.c b/drivers/gpio/gpio-da9055.c
new file mode 100644
index 000000000000..55d83c7d9c7f
--- /dev/null
+++ b/drivers/gpio/gpio-da9055.c
@@ -0,0 +1,204 @@
+/*
+ * GPIO Driver for Dialog DA9055 PMICs.
+ *
+ * Copyright(c) 2012 Dialog Semiconductor Ltd.
+ *
+ * Author: David Dajun Chen <dchen@diasemi.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+
+#include <linux/mfd/da9055/core.h>
+#include <linux/mfd/da9055/reg.h>
+#include <linux/mfd/da9055/pdata.h>
+
+#define DA9055_VDD_IO 0x0
+#define DA9055_PUSH_PULL 0x3
+#define DA9055_ACT_LOW 0x0
+#define DA9055_GPI 0x1
+#define DA9055_PORT_MASK 0x3
+#define DA9055_PORT_SHIFT(offset) (4 * (offset % 2))
+
+#define DA9055_INPUT DA9055_GPI
+#define DA9055_OUTPUT DA9055_PUSH_PULL
+#define DA9055_IRQ_GPI0 3
+
+struct da9055_gpio {
+ struct da9055 *da9055;
+ struct gpio_chip gp;
+};
+
+static inline struct da9055_gpio *to_da9055_gpio(struct gpio_chip *chip)
+{
+ return container_of(chip, struct da9055_gpio, gp);
+}
+
+static int da9055_gpio_get(struct gpio_chip *gc, unsigned offset)
+{
+ struct da9055_gpio *gpio = to_da9055_gpio(gc);
+ int gpio_direction = 0;
+ int ret;
+
+ /* Get GPIO direction */
+ ret = da9055_reg_read(gpio->da9055, (offset >> 1) + DA9055_REG_GPIO0_1);
+ if (ret < 0)
+ return ret;
+
+ gpio_direction = ret & (DA9055_PORT_MASK) << DA9055_PORT_SHIFT(offset);
+ gpio_direction >>= DA9055_PORT_SHIFT(offset);
+ switch (gpio_direction) {
+ case DA9055_INPUT:
+ ret = da9055_reg_read(gpio->da9055, DA9055_REG_STATUS_B);
+ if (ret < 0)
+ return ret;
+ break;
+ case DA9055_OUTPUT:
+ ret = da9055_reg_read(gpio->da9055, DA9055_REG_GPIO_MODE0_2);
+ if (ret < 0)
+ return ret;
+ }
+
+ return ret & (1 << offset);
+
+}
+
+static void da9055_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
+{
+ struct da9055_gpio *gpio = to_da9055_gpio(gc);
+
+ da9055_reg_update(gpio->da9055,
+ DA9055_REG_GPIO_MODE0_2,
+ 1 << offset,
+ value << offset);
+}
+
+static int da9055_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
+{
+ struct da9055_gpio *gpio = to_da9055_gpio(gc);
+ unsigned char reg_byte;
+
+ reg_byte = (DA9055_ACT_LOW | DA9055_GPI)
+ << DA9055_PORT_SHIFT(offset);
+
+ return da9055_reg_update(gpio->da9055, (offset >> 1) +
+ DA9055_REG_GPIO0_1,
+ DA9055_PORT_MASK <<
+ DA9055_PORT_SHIFT(offset),
+ reg_byte);
+}
+
+static int da9055_gpio_direction_output(struct gpio_chip *gc,
+ unsigned offset, int value)
+{
+ struct da9055_gpio *gpio = to_da9055_gpio(gc);
+ unsigned char reg_byte;
+ int ret;
+
+ reg_byte = (DA9055_VDD_IO | DA9055_PUSH_PULL)
+ << DA9055_PORT_SHIFT(offset);
+
+ ret = da9055_reg_update(gpio->da9055, (offset >> 1) +
+ DA9055_REG_GPIO0_1,
+ DA9055_PORT_MASK <<
+ DA9055_PORT_SHIFT(offset),
+ reg_byte);
+ if (ret < 0)
+ return ret;
+
+ da9055_gpio_set(gc, offset, value);
+
+ return 0;
+}
+
+static int da9055_gpio_to_irq(struct gpio_chip *gc, u32 offset)
+{
+ struct da9055_gpio *gpio = to_da9055_gpio(gc);
+ struct da9055 *da9055 = gpio->da9055;
+
+ return regmap_irq_get_virq(da9055->irq_data,
+ DA9055_IRQ_GPI0 + offset);
+}
+
+static struct gpio_chip reference_gp __devinitdata = {
+ .label = "da9055-gpio",
+ .owner = THIS_MODULE,
+ .get = da9055_gpio_get,
+ .set = da9055_gpio_set,
+ .direction_input = da9055_gpio_direction_input,
+ .direction_output = da9055_gpio_direction_output,
+ .to_irq = da9055_gpio_to_irq,
+ .can_sleep = 1,
+ .ngpio = 3,
+ .base = -1,
+};
+
+static int __devinit da9055_gpio_probe(struct platform_device *pdev)
+{
+ struct da9055_gpio *gpio;
+ struct da9055_pdata *pdata;
+ int ret;
+
+ gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL);
+ if (gpio == NULL)
+ return -ENOMEM;
+
+ gpio->da9055 = dev_get_drvdata(pdev->dev.parent);
+ pdata = gpio->da9055->dev->platform_data;
+
+ gpio->gp = reference_gp;
+ if (pdata && pdata->gpio_base)
+ gpio->gp.base = pdata->gpio_base;
+
+ ret = gpiochip_add(&gpio->gp);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Could not register gpiochip, %d\n", ret);
+ goto err_mem;
+ }
+
+ platform_set_drvdata(pdev, gpio);
+
+ return 0;
+
+err_mem:
+ return ret;
+}
+
+static int __devexit da9055_gpio_remove(struct platform_device *pdev)
+{
+ struct da9055_gpio *gpio = platform_get_drvdata(pdev);
+
+ return gpiochip_remove(&gpio->gp);
+}
+
+static struct platform_driver da9055_gpio_driver = {
+ .probe = da9055_gpio_probe,
+ .remove = __devexit_p(da9055_gpio_remove),
+ .driver = {
+ .name = "da9055-gpio",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init da9055_gpio_init(void)
+{
+ return platform_driver_register(&da9055_gpio_driver);
+}
+subsys_initcall(da9055_gpio_init);
+
+static void __exit da9055_gpio_exit(void)
+{
+ platform_driver_unregister(&da9055_gpio_driver);
+}
+module_exit(da9055_gpio_exit);
+
+MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");
+MODULE_DESCRIPTION("DA9055 GPIO Device Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:da9055-gpio");
diff --git a/drivers/gpio/gpio-em.c b/drivers/gpio/gpio-em.c
index efb4c2d0d132..bdc8302e711a 100644
--- a/drivers/gpio/gpio-em.c
+++ b/drivers/gpio/gpio-em.c
@@ -35,7 +35,6 @@
struct em_gio_priv {
void __iomem *base0;
void __iomem *base1;
- unsigned int irq_base;
spinlock_t sense_lock;
struct platform_device *pdev;
struct gpio_chip gpio_chip;
@@ -214,7 +213,7 @@ static int em_gio_direction_output(struct gpio_chip *chip, unsigned offset,
static int em_gio_to_irq(struct gpio_chip *chip, unsigned offset)
{
- return irq_find_mapping(gpio_to_priv(chip)->irq_domain, offset);
+ return irq_create_mapping(gpio_to_priv(chip)->irq_domain, offset);
}
static int em_gio_irq_domain_map(struct irq_domain *h, unsigned int virq,
@@ -234,41 +233,7 @@ static struct irq_domain_ops em_gio_irq_domain_ops = {
.map = em_gio_irq_domain_map,
};
-static int __devinit em_gio_irq_domain_init(struct em_gio_priv *p)
-{
- struct platform_device *pdev = p->pdev;
- struct gpio_em_config *pdata = pdev->dev.platform_data;
-
- p->irq_base = irq_alloc_descs(pdata->irq_base, 0,
- pdata->number_of_pins, numa_node_id());
- if (p->irq_base < 0) {
- dev_err(&pdev->dev, "cannot get irq_desc\n");
- return p->irq_base;
- }
- pr_debug("gio: hw base = %d, nr = %d, sw base = %d\n",
- pdata->gpio_base, pdata->number_of_pins, p->irq_base);
-
- p->irq_domain = irq_domain_add_legacy(pdev->dev.of_node,
- pdata->number_of_pins,
- p->irq_base, 0,
- &em_gio_irq_domain_ops, p);
- if (!p->irq_domain) {
- irq_free_descs(p->irq_base, pdata->number_of_pins);
- return -ENXIO;
- }
-
- return 0;
-}
-
-static void em_gio_irq_domain_cleanup(struct em_gio_priv *p)
-{
- struct gpio_em_config *pdata = p->pdev->dev.platform_data;
-
- irq_free_descs(p->irq_base, pdata->number_of_pins);
- /* FIXME: irq domain wants to be freed! */
-}
-
-static int __devinit em_gio_probe(struct platform_device *pdev)
+static int em_gio_probe(struct platform_device *pdev)
{
struct gpio_em_config *pdata = pdev->dev.platform_data;
struct em_gio_priv *p;
@@ -334,8 +299,11 @@ static int __devinit em_gio_probe(struct platform_device *pdev)
irq_chip->irq_set_type = em_gio_irq_set_type;
irq_chip->flags = IRQCHIP_SKIP_SET_WAKE;
- ret = em_gio_irq_domain_init(p);
- if (ret) {
+ p->irq_domain = irq_domain_add_linear(pdev->dev.of_node,
+ pdata->number_of_pins,
+ &em_gio_irq_domain_ops, p);
+ if (!p->irq_domain) {
+ ret = -ENXIO;
dev_err(&pdev->dev, "cannot initialize irq domain\n");
goto err3;
}
@@ -364,7 +332,7 @@ err6:
err5:
free_irq(irq[0]->start, pdev);
err4:
- em_gio_irq_domain_cleanup(p);
+ irq_domain_remove(p->irq_domain);
err3:
iounmap(p->base1);
err2:
@@ -375,7 +343,7 @@ err0:
return ret;
}
-static int __devexit em_gio_remove(struct platform_device *pdev)
+static int em_gio_remove(struct platform_device *pdev)
{
struct em_gio_priv *p = platform_get_drvdata(pdev);
struct resource *irq[2];
@@ -390,7 +358,7 @@ static int __devexit em_gio_remove(struct platform_device *pdev)
free_irq(irq[1]->start, pdev);
free_irq(irq[0]->start, pdev);
- em_gio_irq_domain_cleanup(p);
+ irq_domain_remove(p->irq_domain);
iounmap(p->base1);
iounmap(p->base0);
kfree(p);
@@ -399,7 +367,7 @@ static int __devexit em_gio_remove(struct platform_device *pdev)
static struct platform_driver em_gio_device_driver = {
.probe = em_gio_probe,
- .remove = __devexit_p(em_gio_remove),
+ .remove = em_gio_remove,
.driver = {
.name = "em_gio",
}
diff --git a/drivers/gpio/gpio-ep93xx.c b/drivers/gpio/gpio-ep93xx.c
index 9fe5b8fe9be8..56b98eebe1fc 100644
--- a/drivers/gpio/gpio-ep93xx.c
+++ b/drivers/gpio/gpio-ep93xx.c
@@ -340,7 +340,7 @@ static int ep93xx_gpio_add_bank(struct bgpio_chip *bgc, struct device *dev,
return gpiochip_add(&bgc->gc);
}
-static int __devinit ep93xx_gpio_probe(struct platform_device *pdev)
+static int ep93xx_gpio_probe(struct platform_device *pdev)
{
struct ep93xx_gpio *ep93xx_gpio;
struct resource *res;
diff --git a/drivers/gpio/gpio-generic.c b/drivers/gpio/gpio-generic.c
index 82e2e4fe599e..05fcc0f247ca 100644
--- a/drivers/gpio/gpio-generic.c
+++ b/drivers/gpio/gpio-generic.c
@@ -444,7 +444,7 @@ static void __iomem *bgpio_map(struct platform_device *pdev,
return ret;
}
-static int __devinit bgpio_pdev_probe(struct platform_device *pdev)
+static int bgpio_pdev_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct resource *r;
@@ -507,7 +507,7 @@ static int __devinit bgpio_pdev_probe(struct platform_device *pdev)
return gpiochip_add(&bgc->gc);
}
-static int __devexit bgpio_pdev_remove(struct platform_device *pdev)
+static int bgpio_pdev_remove(struct platform_device *pdev)
{
struct bgpio_chip *bgc = platform_get_drvdata(pdev);
@@ -527,7 +527,7 @@ static struct platform_driver bgpio_driver = {
},
.id_table = bgpio_id_table,
.probe = bgpio_pdev_probe,
- .remove = __devexit_p(bgpio_pdev_remove),
+ .remove = bgpio_pdev_remove,
};
module_platform_driver(bgpio_driver);
diff --git a/drivers/gpio/gpio-ich.c b/drivers/gpio/gpio-ich.c
index d4d617966696..6cc87ac8e019 100644
--- a/drivers/gpio/gpio-ich.c
+++ b/drivers/gpio/gpio-ich.c
@@ -238,7 +238,7 @@ static void ichx_gpio_set(struct gpio_chip *chip, unsigned nr, int val)
ichx_write_bit(GPIO_LVL, nr, val, 0);
}
-static void __devinit ichx_gpiolib_setup(struct gpio_chip *chip)
+static void ichx_gpiolib_setup(struct gpio_chip *chip)
{
chip->owner = THIS_MODULE;
chip->label = DRV_NAME;
@@ -313,7 +313,7 @@ static struct ichx_desc intel5_desc = {
.ngpio = 76,
};
-static int __devinit ichx_gpio_request_regions(struct resource *res_base,
+static int ichx_gpio_request_regions(struct resource *res_base,
const char *name, u8 use_gpio)
{
int i;
@@ -353,7 +353,7 @@ static void ichx_gpio_release_regions(struct resource *res_base, u8 use_gpio)
}
}
-static int __devinit ichx_gpio_probe(struct platform_device *pdev)
+static int ichx_gpio_probe(struct platform_device *pdev)
{
struct resource *res_base, *res_pm;
int err;
@@ -442,7 +442,7 @@ add_err:
return err;
}
-static int __devexit ichx_gpio_remove(struct platform_device *pdev)
+static int ichx_gpio_remove(struct platform_device *pdev)
{
int err;
@@ -467,7 +467,7 @@ static struct platform_driver ichx_gpio_driver = {
.name = DRV_NAME,
},
.probe = ichx_gpio_probe,
- .remove = __devexit_p(ichx_gpio_remove),
+ .remove = ichx_gpio_remove,
};
module_platform_driver(ichx_gpio_driver);
diff --git a/drivers/gpio/gpio-janz-ttl.c b/drivers/gpio/gpio-janz-ttl.c
index f2f000dd70b3..7d0a04169a35 100644
--- a/drivers/gpio/gpio-janz-ttl.c
+++ b/drivers/gpio/gpio-janz-ttl.c
@@ -108,13 +108,13 @@ static void ttl_set_value(struct gpio_chip *gpio, unsigned offset, int value)
spin_unlock(&mod->lock);
}
-static void __devinit ttl_write_reg(struct ttl_module *mod, u8 reg, u16 val)
+static void ttl_write_reg(struct ttl_module *mod, u8 reg, u16 val)
{
iowrite16be(reg, &mod->regs->control);
iowrite16be(val, &mod->regs->control);
}
-static void __devinit ttl_setup_device(struct ttl_module *mod)
+static void ttl_setup_device(struct ttl_module *mod)
{
/* reset the device to a known state */
iowrite16be(0x0000, &mod->regs->control);
@@ -140,7 +140,7 @@ static void __devinit ttl_setup_device(struct ttl_module *mod)
ttl_write_reg(mod, MASTER_CONF_CTL, CONF_PAE | CONF_PBE | CONF_PCE);
}
-static int __devinit ttl_probe(struct platform_device *pdev)
+static int ttl_probe(struct platform_device *pdev)
{
struct janz_platform_data *pdata;
struct device *dev = &pdev->dev;
@@ -211,7 +211,7 @@ out_return:
return ret;
}
-static int __devexit ttl_remove(struct platform_device *pdev)
+static int ttl_remove(struct platform_device *pdev)
{
struct ttl_module *mod = platform_get_drvdata(pdev);
struct device *dev = &pdev->dev;
@@ -234,7 +234,7 @@ static struct platform_driver ttl_driver = {
.owner = THIS_MODULE,
},
.probe = ttl_probe,
- .remove = __devexit_p(ttl_remove),
+ .remove = ttl_remove,
};
module_platform_driver(ttl_driver);
diff --git a/drivers/gpio/gpio-langwell.c b/drivers/gpio/gpio-langwell.c
index 202a99207b7d..e77b2b3e94af 100644
--- a/drivers/gpio/gpio-langwell.c
+++ b/drivers/gpio/gpio-langwell.c
@@ -332,7 +332,7 @@ static const struct dev_pm_ops lnw_gpio_pm_ops = {
.runtime_idle = lnw_gpio_runtime_idle,
};
-static int __devinit lnw_gpio_probe(struct pci_dev *pdev,
+static int lnw_gpio_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
void *base;
@@ -435,7 +435,7 @@ static struct pci_driver lnw_gpio_driver = {
};
-static int __devinit wp_gpio_probe(struct platform_device *pdev)
+static int wp_gpio_probe(struct platform_device *pdev)
{
struct lnw_gpio *lnw;
struct gpio_chip *gc;
@@ -484,7 +484,7 @@ err_kmalloc:
return retval;
}
-static int __devexit wp_gpio_remove(struct platform_device *pdev)
+static int wp_gpio_remove(struct platform_device *pdev)
{
struct lnw_gpio *lnw = platform_get_drvdata(pdev);
int err;
@@ -499,7 +499,7 @@ static int __devexit wp_gpio_remove(struct platform_device *pdev)
static struct platform_driver wp_gpio_driver = {
.probe = wp_gpio_probe,
- .remove = __devexit_p(wp_gpio_remove),
+ .remove = wp_gpio_remove,
.driver = {
.name = "wp_gpio",
.owner = THIS_MODULE,
diff --git a/drivers/gpio/gpio-lpc32xx.c b/drivers/gpio/gpio-lpc32xx.c
index 3644e0dcb3dd..36d7dee07b28 100644
--- a/drivers/gpio/gpio-lpc32xx.c
+++ b/drivers/gpio/gpio-lpc32xx.c
@@ -542,7 +542,7 @@ static int lpc32xx_of_xlate(struct gpio_chip *gc,
return gpiospec->args[1];
}
-static int __devinit lpc32xx_gpio_probe(struct platform_device *pdev)
+static int lpc32xx_gpio_probe(struct platform_device *pdev)
{
int i;
@@ -559,7 +559,7 @@ static int __devinit lpc32xx_gpio_probe(struct platform_device *pdev)
}
#ifdef CONFIG_OF
-static struct of_device_id lpc32xx_gpio_of_match[] __devinitdata = {
+static struct of_device_id lpc32xx_gpio_of_match[] = {
{ .compatible = "nxp,lpc3220-gpio", },
{ },
};
diff --git a/drivers/gpio/gpio-max7300.c b/drivers/gpio/gpio-max7300.c
index a5ca0ab1b372..4b6b9a04e326 100644
--- a/drivers/gpio/gpio-max7300.c
+++ b/drivers/gpio/gpio-max7300.c
@@ -31,7 +31,7 @@ static int max7300_i2c_read(struct device *dev, unsigned int reg)
return i2c_smbus_read_byte_data(client, reg);
}
-static int __devinit max7300_probe(struct i2c_client *client,
+static int max7300_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct max7301 *ts;
@@ -55,7 +55,7 @@ static int __devinit max7300_probe(struct i2c_client *client,
return ret;
}
-static int __devexit max7300_remove(struct i2c_client *client)
+static int max7300_remove(struct i2c_client *client)
{
return __max730x_remove(&client->dev);
}
@@ -72,7 +72,7 @@ static struct i2c_driver max7300_driver = {
.owner = THIS_MODULE,
},
.probe = max7300_probe,
- .remove = __devexit_p(max7300_remove),
+ .remove = max7300_remove,
.id_table = max7300_id,
};
diff --git a/drivers/gpio/gpio-max7301.c b/drivers/gpio/gpio-max7301.c
index 741acfcbe761..c6c535c1310e 100644
--- a/drivers/gpio/gpio-max7301.c
+++ b/drivers/gpio/gpio-max7301.c
@@ -50,7 +50,7 @@ static int max7301_spi_read(struct device *dev, unsigned int reg)
return word & 0xff;
}
-static int __devinit max7301_probe(struct spi_device *spi)
+static int max7301_probe(struct spi_device *spi)
{
struct max7301 *ts;
int ret;
@@ -75,7 +75,7 @@ static int __devinit max7301_probe(struct spi_device *spi)
return ret;
}
-static int __devexit max7301_remove(struct spi_device *spi)
+static int max7301_remove(struct spi_device *spi)
{
return __max730x_remove(&spi->dev);
}
@@ -92,7 +92,7 @@ static struct spi_driver max7301_driver = {
.owner = THIS_MODULE,
},
.probe = max7301_probe,
- .remove = __devexit_p(max7301_remove),
+ .remove = max7301_remove,
.id_table = max7301_id,
};
diff --git a/drivers/gpio/gpio-max730x.c b/drivers/gpio/gpio-max730x.c
index 05e2dac60b3b..00092342b84c 100644
--- a/drivers/gpio/gpio-max730x.c
+++ b/drivers/gpio/gpio-max730x.c
@@ -160,17 +160,13 @@ static void max7301_set(struct gpio_chip *chip, unsigned offset, int value)
mutex_unlock(&ts->lock);
}
-int __devinit __max730x_probe(struct max7301 *ts)
+int __max730x_probe(struct max7301 *ts)
{
struct device *dev = ts->dev;
struct max7301_platform_data *pdata;
int i, ret;
pdata = dev->platform_data;
- if (!pdata || !pdata->base) {
- dev_err(dev, "incorrect or missing platform data\n");
- return -EINVAL;
- }
mutex_init(&ts->lock);
dev_set_drvdata(dev, ts);
@@ -178,7 +174,12 @@ int __devinit __max730x_probe(struct max7301 *ts)
/* Power up the chip and disable IRQ output */
ts->write(dev, 0x04, 0x01);
- ts->input_pullup_active = pdata->input_pullup_active;
+ if (pdata) {
+ ts->input_pullup_active = pdata->input_pullup_active;
+ ts->chip.base = pdata->base;
+ } else {
+ ts->chip.base = -1;
+ }
ts->chip.label = dev->driver->name;
ts->chip.direction_input = max7301_direction_input;
@@ -186,7 +187,6 @@ int __devinit __max730x_probe(struct max7301 *ts)
ts->chip.direction_output = max7301_direction_output;
ts->chip.set = max7301_set;
- ts->chip.base = pdata->base;
ts->chip.ngpio = PIN_NUMBER;
ts->chip.can_sleep = 1;
ts->chip.dev = dev;
@@ -226,7 +226,7 @@ exit_destroy:
}
EXPORT_SYMBOL_GPL(__max730x_probe);
-int __devexit __max730x_remove(struct device *dev)
+int __max730x_remove(struct device *dev)
{
struct max7301 *ts = dev_get_drvdata(dev);
int ret;
diff --git a/drivers/gpio/gpio-max732x.c b/drivers/gpio/gpio-max732x.c
index 9504120812a5..1e0467ce4c37 100644
--- a/drivers/gpio/gpio-max732x.c
+++ b/drivers/gpio/gpio-max732x.c
@@ -526,7 +526,7 @@ static void max732x_irq_teardown(struct max732x_chip *chip)
}
#endif
-static int __devinit max732x_setup_gpio(struct max732x_chip *chip,
+static int max732x_setup_gpio(struct max732x_chip *chip,
const struct i2c_device_id *id,
unsigned gpio_start)
{
@@ -574,7 +574,7 @@ static int __devinit max732x_setup_gpio(struct max732x_chip *chip,
return port;
}
-static int __devinit max732x_probe(struct i2c_client *client,
+static int max732x_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct max732x_platform_data *pdata;
@@ -651,7 +651,7 @@ out_failed:
return ret;
}
-static int __devexit max732x_remove(struct i2c_client *client)
+static int max732x_remove(struct i2c_client *client)
{
struct max732x_platform_data *pdata = client->dev.platform_data;
struct max732x_chip *chip = i2c_get_clientdata(client);
@@ -690,7 +690,7 @@ static struct i2c_driver max732x_driver = {
.owner = THIS_MODULE,
},
.probe = max732x_probe,
- .remove = __devexit_p(max732x_remove),
+ .remove = max732x_remove,
.id_table = max732x_id,
};
diff --git a/drivers/gpio/gpio-mc33880.c b/drivers/gpio/gpio-mc33880.c
index 2de57ce5feb6..6a8fdc26ae6a 100644
--- a/drivers/gpio/gpio-mc33880.c
+++ b/drivers/gpio/gpio-mc33880.c
@@ -80,7 +80,7 @@ static void mc33880_set(struct gpio_chip *chip, unsigned offset, int value)
mutex_unlock(&mc->lock);
}
-static int __devinit mc33880_probe(struct spi_device *spi)
+static int mc33880_probe(struct spi_device *spi)
{
struct mc33880 *mc;
struct mc33880_platform_data *pdata;
@@ -147,7 +147,7 @@ exit_destroy:
return ret;
}
-static int __devexit mc33880_remove(struct spi_device *spi)
+static int mc33880_remove(struct spi_device *spi)
{
struct mc33880 *mc;
int ret;
@@ -175,7 +175,7 @@ static struct spi_driver mc33880_driver = {
.owner = THIS_MODULE,
},
.probe = mc33880_probe,
- .remove = __devexit_p(mc33880_remove),
+ .remove = mc33880_remove,
};
static int __init mc33880_init(void)
diff --git a/drivers/gpio/gpio-mcp23s08.c b/drivers/gpio/gpio-mcp23s08.c
index 0f425189de11..3cea0ea79e80 100644
--- a/drivers/gpio/gpio-mcp23s08.c
+++ b/drivers/gpio/gpio-mcp23s08.c
@@ -77,7 +77,7 @@ struct mcp23s08_driver_data {
/*----------------------------------------------------------------------*/
-#ifdef CONFIG_I2C
+#if IS_ENABLED(CONFIG_I2C)
static int mcp23008_read(struct mcp23s08 *mcp, unsigned reg)
{
@@ -399,7 +399,7 @@ static int mcp23s08_probe_one(struct mcp23s08 *mcp, struct device *dev,
break;
#endif /* CONFIG_SPI_MASTER */
-#ifdef CONFIG_I2C
+#if IS_ENABLED(CONFIG_I2C)
case MCP_TYPE_008:
mcp->ops = &mcp23008_ops;
mcp->chip.ngpio = 8;
@@ -473,9 +473,9 @@ fail:
/*----------------------------------------------------------------------*/
-#ifdef CONFIG_I2C
+#if IS_ENABLED(CONFIG_I2C)
-static int __devinit mcp230xx_probe(struct i2c_client *client,
+static int mcp230xx_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct mcp23s08_platform_data *pdata;
@@ -508,7 +508,7 @@ fail:
return status;
}
-static int __devexit mcp230xx_remove(struct i2c_client *client)
+static int mcp230xx_remove(struct i2c_client *client)
{
struct mcp23s08 *mcp = i2c_get_clientdata(client);
int status;
@@ -533,7 +533,7 @@ static struct i2c_driver mcp230xx_driver = {
.owner = THIS_MODULE,
},
.probe = mcp230xx_probe,
- .remove = __devexit_p(mcp230xx_remove),
+ .remove = mcp230xx_remove,
.id_table = mcp230xx_id,
};
diff --git a/drivers/gpio/gpio-ml-ioh.c b/drivers/gpio/gpio-ml-ioh.c
index 6a29ee1847be..b73366523fae 100644
--- a/drivers/gpio/gpio-ml-ioh.c
+++ b/drivers/gpio/gpio-ml-ioh.c
@@ -385,7 +385,7 @@ static irqreturn_t ioh_gpio_handler(int irq, void *dev_id)
return ret;
}
-static __devinit void ioh_gpio_alloc_generic_chip(struct ioh_gpio *chip,
+static void ioh_gpio_alloc_generic_chip(struct ioh_gpio *chip,
unsigned int irq_start, unsigned int num)
{
struct irq_chip_generic *gc;
@@ -406,7 +406,7 @@ static __devinit void ioh_gpio_alloc_generic_chip(struct ioh_gpio *chip,
IRQ_NOREQUEST | IRQ_NOPROBE, 0);
}
-static int __devinit ioh_gpio_probe(struct pci_dev *pdev,
+static int ioh_gpio_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
int ret;
@@ -517,7 +517,7 @@ err_pci_enable:
return ret;
}
-static void __devexit ioh_gpio_remove(struct pci_dev *pdev)
+static void ioh_gpio_remove(struct pci_dev *pdev)
{
int err;
int i;
@@ -606,7 +606,7 @@ static struct pci_driver ioh_gpio_driver = {
.name = "ml_ioh_gpio",
.id_table = ioh_gpio_pcidev_id,
.probe = ioh_gpio_probe,
- .remove = __devexit_p(ioh_gpio_remove),
+ .remove = ioh_gpio_remove,
.suspend = ioh_gpio_suspend,
.resume = ioh_gpio_resume
};
diff --git a/drivers/gpio/gpio-mpc5200.c b/drivers/gpio/gpio-mpc5200.c
index 2c7cef367fc0..42647f26c9e0 100644
--- a/drivers/gpio/gpio-mpc5200.c
+++ b/drivers/gpio/gpio-mpc5200.c
@@ -148,7 +148,7 @@ mpc52xx_wkup_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
return 0;
}
-static int __devinit mpc52xx_wkup_gpiochip_probe(struct platform_device *ofdev)
+static int mpc52xx_wkup_gpiochip_probe(struct platform_device *ofdev)
{
struct mpc52xx_gpiochip *chip;
struct mpc52xx_gpio_wkup __iomem *regs;
@@ -308,7 +308,7 @@ mpc52xx_simple_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
return 0;
}
-static int __devinit mpc52xx_simple_gpiochip_probe(struct platform_device *ofdev)
+static int mpc52xx_simple_gpiochip_probe(struct platform_device *ofdev)
{
struct mpc52xx_gpiochip *chip;
struct gpio_chip *gc;
diff --git a/drivers/gpio/gpio-msic.c b/drivers/gpio/gpio-msic.c
index b38986285868..27ea7b9257ff 100644
--- a/drivers/gpio/gpio-msic.c
+++ b/drivers/gpio/gpio-msic.c
@@ -256,7 +256,7 @@ static void msic_gpio_irq_handler(unsigned irq, struct irq_desc *desc)
chip->irq_eoi(data);
}
-static int __devinit platform_msic_gpio_probe(struct platform_device *pdev)
+static int platform_msic_gpio_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct intel_msic_gpio_pdata *pdata = dev->platform_data;
diff --git a/drivers/gpio/gpio-msm-v2.c b/drivers/gpio/gpio-msm-v2.c
index 38305beb4375..55a7e7769af6 100644
--- a/drivers/gpio/gpio-msm-v2.c
+++ b/drivers/gpio/gpio-msm-v2.c
@@ -352,7 +352,7 @@ static struct irq_chip msm_gpio_irq_chip = {
.irq_set_wake = msm_gpio_irq_set_wake,
};
-static int __devinit msm_gpio_probe(struct platform_device *dev)
+static int msm_gpio_probe(struct platform_device *dev)
{
int i, irq, ret;
@@ -376,7 +376,7 @@ static int __devinit msm_gpio_probe(struct platform_device *dev)
return 0;
}
-static int __devexit msm_gpio_remove(struct platform_device *dev)
+static int msm_gpio_remove(struct platform_device *dev)
{
int ret = gpiochip_remove(&msm_gpio.gpio_chip);
@@ -390,7 +390,7 @@ static int __devexit msm_gpio_remove(struct platform_device *dev)
static struct platform_driver msm_gpio_driver = {
.probe = msm_gpio_probe,
- .remove = __devexit_p(msm_gpio_remove),
+ .remove = msm_gpio_remove,
.driver = {
.name = "msmgpio",
.owner = THIS_MODULE,
diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c
index cf7afb9eb61a..d767b534c4af 100644
--- a/drivers/gpio/gpio-mvebu.c
+++ b/drivers/gpio/gpio-mvebu.c
@@ -92,6 +92,11 @@ static inline void __iomem *mvebu_gpioreg_out(struct mvebu_gpio_chip *mvchip)
return mvchip->membase + GPIO_OUT_OFF;
}
+static inline void __iomem *mvebu_gpioreg_blink(struct mvebu_gpio_chip *mvchip)
+{
+ return mvchip->membase + GPIO_BLINK_EN_OFF;
+}
+
static inline void __iomem *mvebu_gpioreg_io_conf(struct mvebu_gpio_chip *mvchip)
{
return mvchip->membase + GPIO_IO_CONF_OFF;
@@ -163,12 +168,12 @@ static void __iomem *mvebu_gpioreg_level_mask(struct mvebu_gpio_chip *mvchip)
* Functions implementing the gpio_chip methods
*/
-int mvebu_gpio_request(struct gpio_chip *chip, unsigned pin)
+static int mvebu_gpio_request(struct gpio_chip *chip, unsigned pin)
{
return pinctrl_request_gpio(chip->base + pin);
}
-void mvebu_gpio_free(struct gpio_chip *chip, unsigned pin)
+static void mvebu_gpio_free(struct gpio_chip *chip, unsigned pin)
{
pinctrl_free_gpio(chip->base + pin);
}
@@ -206,6 +211,23 @@ static int mvebu_gpio_get(struct gpio_chip *chip, unsigned pin)
return (u >> pin) & 1;
}
+static void mvebu_gpio_blink(struct gpio_chip *chip, unsigned pin, int value)
+{
+ struct mvebu_gpio_chip *mvchip =
+ container_of(chip, struct mvebu_gpio_chip, chip);
+ unsigned long flags;
+ u32 u;
+
+ spin_lock_irqsave(&mvchip->lock, flags);
+ u = readl_relaxed(mvebu_gpioreg_blink(mvchip));
+ if (value)
+ u |= 1 << pin;
+ else
+ u &= ~(1 << pin);
+ writel_relaxed(u, mvebu_gpioreg_blink(mvchip));
+ spin_unlock_irqrestore(&mvchip->lock, flags);
+}
+
static int mvebu_gpio_direction_input(struct gpio_chip *chip, unsigned pin)
{
struct mvebu_gpio_chip *mvchip =
@@ -244,6 +266,7 @@ static int mvebu_gpio_direction_output(struct gpio_chip *chip, unsigned pin,
if (ret)
return ret;
+ mvebu_gpio_blink(chip, pin, 0);
mvebu_gpio_set(chip, pin, value);
spin_lock_irqsave(&mvchip->lock, flags);
@@ -459,7 +482,7 @@ static struct platform_device_id mvebu_gpio_ids[] = {
};
MODULE_DEVICE_TABLE(platform, mvebu_gpio_ids);
-static struct of_device_id mvebu_gpio_of_match[] __devinitdata = {
+static struct of_device_id mvebu_gpio_of_match[] = {
{
.compatible = "marvell,orion-gpio",
.data = (void*) MVEBU_GPIO_SOC_VARIANT_ORION,
@@ -478,7 +501,7 @@ static struct of_device_id mvebu_gpio_of_match[] __devinitdata = {
};
MODULE_DEVICE_TABLE(of, mvebu_gpio_of_match);
-static int __devinit mvebu_gpio_probe(struct platform_device *pdev)
+static int mvebu_gpio_probe(struct platform_device *pdev)
{
struct mvebu_gpio_chip *mvchip;
const struct of_device_id *match;
@@ -523,6 +546,7 @@ static int __devinit mvebu_gpio_probe(struct platform_device *pdev)
mvchip->chip.label = dev_name(&pdev->dev);
mvchip->chip.dev = &pdev->dev;
mvchip->chip.request = mvebu_gpio_request;
+ mvchip->chip.free = mvebu_gpio_free;
mvchip->chip.direction_input = mvebu_gpio_direction_input;
mvchip->chip.get = mvebu_gpio_get;
mvchip->chip.direction_output = mvebu_gpio_direction_output;
@@ -650,8 +674,8 @@ static int __devinit mvebu_gpio_probe(struct platform_device *pdev)
IRQ_NOREQUEST, IRQ_LEVEL | IRQ_NOPROBE);
/* Setup irq domain on top of the generic chip. */
- mvchip->domain = irq_domain_add_legacy(np, mvchip->chip.ngpio,
- mvchip->irqbase, 0,
+ mvchip->domain = irq_domain_add_simple(np, mvchip->chip.ngpio,
+ mvchip->irqbase,
&irq_domain_simple_ops,
mvchip);
if (!mvchip->domain) {
diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c
index 80f44bb64a87..7877335c4cc8 100644
--- a/drivers/gpio/gpio-mxc.c
+++ b/drivers/gpio/gpio-mxc.c
@@ -356,7 +356,7 @@ static void __init mxc_gpio_init_gc(struct mxc_gpio_port *port, int irq_base)
IRQ_NOREQUEST, 0);
}
-static void __devinit mxc_gpio_get_hw(struct platform_device *pdev)
+static void mxc_gpio_get_hw(struct platform_device *pdev)
{
const struct of_device_id *of_id =
of_match_device(mxc_gpio_dt_ids, &pdev->dev);
@@ -395,7 +395,7 @@ static int mxc_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
return irq_find_mapping(port->domain, offset);
}
-static int __devinit mxc_gpio_probe(struct platform_device *pdev)
+static int mxc_gpio_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct mxc_gpio_port *port;
diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c
index 796fb13e4815..fa2a63cad32e 100644
--- a/drivers/gpio/gpio-mxs.c
+++ b/drivers/gpio/gpio-mxs.c
@@ -214,7 +214,7 @@ static const struct of_device_id mxs_gpio_dt_ids[] = {
};
MODULE_DEVICE_TABLE(of, mxs_gpio_dt_ids);
-static int __devinit mxs_gpio_probe(struct platform_device *pdev)
+static int mxs_gpio_probe(struct platform_device *pdev)
{
const struct of_device_id *of_id =
of_match_device(mxs_gpio_dt_ids, &pdev->dev);
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index d335af1d4d85..f1fbedb2a6f9 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -1012,7 +1012,7 @@ static void omap_gpio_mod_init(struct gpio_bank *bank)
dev_err(bank->dev, "Could not get gpio dbck\n");
}
-static __devinit void
+static void
omap_mpuio_alloc_gc(struct gpio_bank *bank, unsigned int irq_start,
unsigned int num)
{
@@ -1041,7 +1041,7 @@ omap_mpuio_alloc_gc(struct gpio_bank *bank, unsigned int irq_start,
IRQ_NOREQUEST | IRQ_NOPROBE, 0);
}
-static void __devinit omap_gpio_chip_init(struct gpio_bank *bank)
+static void omap_gpio_chip_init(struct gpio_bank *bank)
{
int j;
static int gpio;
@@ -1089,7 +1089,7 @@ static void __devinit omap_gpio_chip_init(struct gpio_bank *bank)
static const struct of_device_id omap_gpio_match[];
-static int __devinit omap_gpio_probe(struct platform_device *pdev)
+static int omap_gpio_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct device_node *node = dev->of_node;
@@ -1105,7 +1105,7 @@ static int __devinit omap_gpio_probe(struct platform_device *pdev)
if (!pdata)
return -EINVAL;
- bank = devm_kzalloc(&pdev->dev, sizeof(struct gpio_bank), GFP_KERNEL);
+ bank = devm_kzalloc(dev, sizeof(struct gpio_bank), GFP_KERNEL);
if (!bank) {
dev_err(dev, "Memory alloc failed\n");
return -ENOMEM;
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index 9c693ae17956..cc102d25ee24 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -16,6 +16,7 @@
#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
+#include <linux/irqdomain.h>
#include <linux/i2c.h>
#include <linux/i2c/pca953x.h>
#include <linux/slab.h>
@@ -83,6 +84,7 @@ struct pca953x_chip {
u32 irq_trig_raise;
u32 irq_trig_fall;
int irq_base;
+ struct irq_domain *domain;
#endif
struct i2c_client *client;
@@ -333,14 +335,14 @@ static void pca953x_irq_mask(struct irq_data *d)
{
struct pca953x_chip *chip = irq_data_get_irq_chip_data(d);
- chip->irq_mask &= ~(1 << (d->irq - chip->irq_base));
+ chip->irq_mask &= ~(1 << d->hwirq);
}
static void pca953x_irq_unmask(struct irq_data *d)
{
struct pca953x_chip *chip = irq_data_get_irq_chip_data(d);
- chip->irq_mask |= 1 << (d->irq - chip->irq_base);
+ chip->irq_mask |= 1 << d->hwirq;
}
static void pca953x_irq_bus_lock(struct irq_data *d)
@@ -372,8 +374,7 @@ static void pca953x_irq_bus_sync_unlock(struct irq_data *d)
static int pca953x_irq_set_type(struct irq_data *d, unsigned int type)
{
struct pca953x_chip *chip = irq_data_get_irq_chip_data(d);
- u32 level = d->irq - chip->irq_base;
- u32 mask = 1 << level;
+ u32 mask = 1 << d->hwirq;
if (!(type & IRQ_TYPE_EDGE_BOTH)) {
dev_err(&chip->client->dev, "irq %d: unsupported type %d\n",
@@ -454,7 +455,7 @@ static irqreturn_t pca953x_irq_handler(int irq, void *devid)
do {
level = __ffs(pending);
- handle_nested_irq(level + chip->irq_base);
+ handle_nested_irq(irq_find_mapping(chip->domain, level));
pending &= ~(1 << level);
} while (pending);
@@ -499,6 +500,17 @@ static int pca953x_irq_setup(struct pca953x_chip *chip,
if (chip->irq_base < 0)
goto out_failed;
+ chip->domain = irq_domain_add_legacy(client->dev.of_node,
+ chip->gpio_chip.ngpio,
+ chip->irq_base,
+ 0,
+ &irq_domain_simple_ops,
+ NULL);
+ if (!chip->domain) {
+ ret = -ENODEV;
+ goto out_irqdesc_free;
+ }
+
for (lvl = 0; lvl < chip->gpio_chip.ngpio; lvl++) {
int irq = lvl + chip->irq_base;
@@ -521,7 +533,7 @@ static int pca953x_irq_setup(struct pca953x_chip *chip,
if (ret) {
dev_err(&client->dev, "failed to request irq %d\n",
client->irq);
- goto out_failed;
+ goto out_irqdesc_free;
}
chip->gpio_chip.to_irq = pca953x_gpio_to_irq;
@@ -529,6 +541,8 @@ static int pca953x_irq_setup(struct pca953x_chip *chip,
return 0;
+out_irqdesc_free:
+ irq_free_descs(chip->irq_base, chip->gpio_chip.ngpio);
out_failed:
chip->irq_base = -1;
return ret;
@@ -602,7 +616,7 @@ pca953x_get_alt_pdata(struct i2c_client *client, int *gpio_base, u32 *invert)
}
#endif
-static int __devinit device_pca953x_init(struct pca953x_chip *chip, u32 invert)
+static int device_pca953x_init(struct pca953x_chip *chip, u32 invert)
{
int ret;
@@ -621,7 +635,7 @@ out:
return ret;
}
-static int __devinit device_pca957x_init(struct pca953x_chip *chip, u32 invert)
+static int device_pca957x_init(struct pca953x_chip *chip, u32 invert)
{
int ret;
u32 val = 0;
@@ -652,7 +666,7 @@ out:
return ret;
}
-static int __devinit pca953x_probe(struct i2c_client *client,
+static int pca953x_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct pca953x_platform_data *pdata;
@@ -751,9 +765,38 @@ static int pca953x_remove(struct i2c_client *client)
return 0;
}
+static const struct of_device_id pca953x_dt_ids[] = {
+ { .compatible = "nxp,pca9534", },
+ { .compatible = "nxp,pca9535", },
+ { .compatible = "nxp,pca9536", },
+ { .compatible = "nxp,pca9537", },
+ { .compatible = "nxp,pca9538", },
+ { .compatible = "nxp,pca9539", },
+ { .compatible = "nxp,pca9554", },
+ { .compatible = "nxp,pca9555", },
+ { .compatible = "nxp,pca9556", },
+ { .compatible = "nxp,pca9557", },
+ { .compatible = "nxp,pca9574", },
+ { .compatible = "nxp,pca9575", },
+
+ { .compatible = "maxim,max7310", },
+ { .compatible = "maxim,max7312", },
+ { .compatible = "maxim,max7313", },
+ { .compatible = "maxim,max7315", },
+
+ { .compatible = "ti,pca6107", },
+ { .compatible = "ti,tca6408", },
+ { .compatible = "ti,tca6416", },
+ { .compatible = "ti,tca6424", },
+ { }
+};
+
+MODULE_DEVICE_TABLE(of, pca953x_dt_ids);
+
static struct i2c_driver pca953x_driver = {
.driver = {
.name = "pca953x",
+ .of_match_table = pca953x_dt_ids,
},
.probe = pca953x_probe,
.remove = pca953x_remove,
diff --git a/drivers/gpio/gpio-pcf857x.c b/drivers/gpio/gpio-pcf857x.c
index 16af35cd2b10..a19b7457a726 100644
--- a/drivers/gpio/gpio-pcf857x.c
+++ b/drivers/gpio/gpio-pcf857x.c
@@ -223,11 +223,11 @@ static void pcf857x_irq_domain_cleanup(struct pcf857x *gpio)
static int pcf857x_irq_domain_init(struct pcf857x *gpio,
struct pcf857x_platform_data *pdata,
- struct device *dev)
+ struct i2c_client *client)
{
int status;
- gpio->irq_domain = irq_domain_add_linear(dev->of_node,
+ gpio->irq_domain = irq_domain_add_linear(client->dev.of_node,
gpio->chip.ngpio,
&pcf857x_irq_domain_ops,
NULL);
@@ -235,15 +235,15 @@ static int pcf857x_irq_domain_init(struct pcf857x *gpio,
goto fail;
/* enable real irq */
- status = request_irq(pdata->irq, pcf857x_irq_demux, 0,
- dev_name(dev), gpio);
+ status = request_irq(client->irq, pcf857x_irq_demux, 0,
+ dev_name(&client->dev), gpio);
if (status)
goto fail;
/* enable gpio_to_irq() */
INIT_WORK(&gpio->work, pcf857x_irq_demux_work);
gpio->chip.to_irq = pcf857x_to_irq;
- gpio->irq = pdata->irq;
+ gpio->irq = client->irq;
return 0;
@@ -285,8 +285,8 @@ static int pcf857x_probe(struct i2c_client *client,
gpio->chip.ngpio = id->driver_data;
/* enable gpio_to_irq() if platform has settings */
- if (pdata && pdata->irq) {
- status = pcf857x_irq_domain_init(gpio, pdata, &client->dev);
+ if (pdata && client->irq) {
+ status = pcf857x_irq_domain_init(gpio, pdata, client);
if (status < 0) {
dev_err(&client->dev, "irq_domain init failed\n");
goto fail;
@@ -368,15 +368,6 @@ static int pcf857x_probe(struct i2c_client *client,
if (status < 0)
goto fail;
- /* NOTE: these chips can issue "some pin-changed" IRQs, which we
- * don't yet even try to use. Among other issues, the relevant
- * genirq state isn't available to modular drivers; and most irq
- * methods can't be called from sleeping contexts.
- */
-
- dev_info(&client->dev, "%s\n",
- client->irq ? " (irq ignored)" : "");
-
/* Let platform code set up the GPIOs and their users.
* Now is the first time anyone could use them.
*/
@@ -388,13 +379,15 @@ static int pcf857x_probe(struct i2c_client *client,
dev_warn(&client->dev, "setup --> %d\n", status);
}
+ dev_info(&client->dev, "probed\n");
+
return 0;
fail:
dev_dbg(&client->dev, "probe error %d for '%s'\n",
status, client->name);
- if (pdata && pdata->irq)
+ if (pdata && client->irq)
pcf857x_irq_domain_cleanup(gpio);
kfree(gpio);
@@ -418,7 +411,7 @@ static int pcf857x_remove(struct i2c_client *client)
}
}
- if (pdata && pdata->irq)
+ if (pdata && client->irq)
pcf857x_irq_domain_cleanup(gpio);
status = gpiochip_remove(&gpio->chip);
diff --git a/drivers/gpio/gpio-pch.c b/drivers/gpio/gpio-pch.c
index 4ad0c4f9171c..cdf599687cf7 100644
--- a/drivers/gpio/gpio-pch.c
+++ b/drivers/gpio/gpio-pch.c
@@ -215,6 +215,7 @@ static void pch_gpio_setup(struct pch_gpio *chip)
struct gpio_chip *gpio = &chip->gpio;
gpio->label = dev_name(chip->dev);
+ gpio->dev = chip->dev;
gpio->owner = THIS_MODULE;
gpio->direction_input = pch_gpio_direction_input;
gpio->get = pch_gpio_get;
@@ -325,7 +326,7 @@ static irqreturn_t pch_gpio_handler(int irq, void *dev_id)
return ret;
}
-static __devinit void pch_gpio_alloc_generic_chip(struct pch_gpio *chip,
+static void pch_gpio_alloc_generic_chip(struct pch_gpio *chip,
unsigned int irq_start, unsigned int num)
{
struct irq_chip_generic *gc;
@@ -345,7 +346,7 @@ static __devinit void pch_gpio_alloc_generic_chip(struct pch_gpio *chip,
IRQ_NOREQUEST | IRQ_NOPROBE, 0);
}
-static int __devinit pch_gpio_probe(struct pci_dev *pdev,
+static int pch_gpio_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
s32 ret;
@@ -442,7 +443,7 @@ err_pci_enable:
return ret;
}
-static void __devexit pch_gpio_remove(struct pci_dev *pdev)
+static void pch_gpio_remove(struct pci_dev *pdev)
{
int err;
struct pch_gpio *chip = pci_get_drvdata(pdev);
@@ -531,7 +532,7 @@ static struct pci_driver pch_gpio_driver = {
.name = "pch_gpio",
.id_table = pch_gpio_pcidev_id,
.probe = pch_gpio_probe,
- .remove = __devexit_p(pch_gpio_remove),
+ .remove = pch_gpio_remove,
.suspend = pch_gpio_suspend,
.resume = pch_gpio_resume
};
diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c
index b4b5da4fd2cc..c1720de18a4f 100644
--- a/drivers/gpio/gpio-pl061.c
+++ b/drivers/gpio/gpio-pl061.c
@@ -48,12 +48,7 @@ struct pl061_context_save_regs {
#endif
struct pl061_gpio {
- /* Each of the two spinlocks protects a different set of hardware
- * regiters and data structurs. This decouples the code of the IRQ from
- * the GPIO code. This also makes the case of a GPIO routine call from
- * the IRQ code simpler.
- */
- spinlock_t lock; /* GPIO registers */
+ spinlock_t lock;
void __iomem *base;
int irq_base;
@@ -216,39 +211,34 @@ static void __init pl061_init_gc(struct pl061_gpio *chip, int irq_base)
IRQ_GC_INIT_NESTED_LOCK, IRQ_NOREQUEST, 0);
}
-static int pl061_probe(struct amba_device *dev, const struct amba_id *id)
+static int pl061_probe(struct amba_device *adev, const struct amba_id *id)
{
- struct pl061_platform_data *pdata;
+ struct device *dev = &adev->dev;
+ struct pl061_platform_data *pdata = dev->platform_data;
struct pl061_gpio *chip;
int ret, irq, i;
- chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+ chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL);
if (chip == NULL)
return -ENOMEM;
- pdata = dev->dev.platform_data;
if (pdata) {
chip->gc.base = pdata->gpio_base;
chip->irq_base = pdata->irq_base;
- } else if (dev->dev.of_node) {
+ } else if (adev->dev.of_node) {
chip->gc.base = -1;
chip->irq_base = 0;
- } else {
- ret = -ENODEV;
- goto free_mem;
- }
+ } else
+ return -ENODEV;
- if (!request_mem_region(dev->res.start,
- resource_size(&dev->res), "pl061")) {
- ret = -EBUSY;
- goto free_mem;
- }
+ if (!devm_request_mem_region(dev, adev->res.start,
+ resource_size(&adev->res), "pl061"))
+ return -EBUSY;
- chip->base = ioremap(dev->res.start, resource_size(&dev->res));
- if (chip->base == NULL) {
- ret = -ENOMEM;
- goto release_region;
- }
+ chip->base = devm_ioremap(dev, adev->res.start,
+ resource_size(&adev->res));
+ if (chip->base == NULL)
+ return -ENOMEM;
spin_lock_init(&chip->lock);
@@ -258,13 +248,13 @@ static int pl061_probe(struct amba_device *dev, const struct amba_id *id)
chip->gc.set = pl061_set_value;
chip->gc.to_irq = pl061_to_irq;
chip->gc.ngpio = PL061_GPIO_NR;
- chip->gc.label = dev_name(&dev->dev);
- chip->gc.dev = &dev->dev;
+ chip->gc.label = dev_name(dev);
+ chip->gc.dev = dev;
chip->gc.owner = THIS_MODULE;
ret = gpiochip_add(&chip->gc);
if (ret)
- goto iounmap;
+ return ret;
/*
* irq_chip support
@@ -276,11 +266,10 @@ static int pl061_probe(struct amba_device *dev, const struct amba_id *id)
pl061_init_gc(chip, chip->irq_base);
writeb(0, chip->base + GPIOIE); /* disable irqs */
- irq = dev->irq[0];
- if (irq < 0) {
- ret = -ENODEV;
- goto iounmap;
- }
+ irq = adev->irq[0];
+ if (irq < 0)
+ return -ENODEV;
+
irq_set_chained_handler(irq, pl061_irq_handler);
irq_set_handler_data(irq, chip);
@@ -294,18 +283,9 @@ static int pl061_probe(struct amba_device *dev, const struct amba_id *id)
}
}
- amba_set_drvdata(dev, chip);
+ amba_set_drvdata(adev, chip);
return 0;
-
-iounmap:
- iounmap(chip->base);
-release_region:
- release_mem_region(dev->res.start, resource_size(&dev->res));
-free_mem:
- kfree(chip);
-
- return ret;
}
#ifdef CONFIG_PM
diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index 98d52cb3fd1a..3e35243c136f 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -250,7 +250,7 @@ static int pxa_gpio_of_xlate(struct gpio_chip *gc,
}
#endif
-static int __devinit pxa_init_gpio_chip(int gpio_end,
+static int pxa_init_gpio_chip(int gpio_end,
int (*set_wake)(unsigned int, unsigned int))
{
int i, gpio, nbanks = gpio_to_bank(gpio_end) + 1;
@@ -490,7 +490,7 @@ const struct irq_domain_ops pxa_irq_domain_ops = {
.xlate = irq_domain_xlate_twocell,
};
-static int __devinit pxa_gpio_probe_dt(struct platform_device *pdev)
+static int pxa_gpio_probe_dt(struct platform_device *pdev)
{
int ret, nr_banks, nr_gpios;
struct device_node *prev, *next, *np = pdev->dev.of_node;
@@ -537,7 +537,7 @@ err:
#define pxa_gpio_probe_dt(pdev) (-1)
#endif
-static int __devinit pxa_gpio_probe(struct platform_device *pdev)
+static int pxa_gpio_probe(struct platform_device *pdev)
{
struct pxa_gpio_chip *c;
struct resource *res;
diff --git a/drivers/gpio/gpio-rc5t583.c b/drivers/gpio/gpio-rc5t583.c
index 08428bf17718..e63d6a397e17 100644
--- a/drivers/gpio/gpio-rc5t583.c
+++ b/drivers/gpio/gpio-rc5t583.c
@@ -111,7 +111,7 @@ static void rc5t583_gpio_free(struct gpio_chip *gc, unsigned offset)
rc5t583_set_bits(parent, RC5T583_GPIO_PGSEL, BIT(offset));
}
-static int __devinit rc5t583_gpio_probe(struct platform_device *pdev)
+static int rc5t583_gpio_probe(struct platform_device *pdev)
{
struct rc5t583 *rc5t583 = dev_get_drvdata(pdev->dev.parent);
struct rc5t583_platform_data *pdata = dev_get_platdata(rc5t583->dev);
@@ -146,7 +146,7 @@ static int __devinit rc5t583_gpio_probe(struct platform_device *pdev)
return gpiochip_add(&rc5t583_gpio->gpio_chip);
}
-static int __devexit rc5t583_gpio_remove(struct platform_device *pdev)
+static int rc5t583_gpio_remove(struct platform_device *pdev)
{
struct rc5t583_gpio *rc5t583_gpio = platform_get_drvdata(pdev);
@@ -159,7 +159,7 @@ static struct platform_driver rc5t583_gpio_driver = {
.owner = THIS_MODULE,
},
.probe = rc5t583_gpio_probe,
- .remove = __devexit_p(rc5t583_gpio_remove),
+ .remove = rc5t583_gpio_remove,
};
static int __init rc5t583_gpio_init(void)
diff --git a/drivers/gpio/gpio-rdc321x.c b/drivers/gpio/gpio-rdc321x.c
index b62d443e9a59..1bf55f67f7a5 100644
--- a/drivers/gpio/gpio-rdc321x.c
+++ b/drivers/gpio/gpio-rdc321x.c
@@ -128,7 +128,7 @@ static int rdc_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
/*
* Cache the initial value of both GPIO data registers
*/
-static int __devinit rdc321x_gpio_probe(struct platform_device *pdev)
+static int rdc321x_gpio_probe(struct platform_device *pdev)
{
int err;
struct resource *r;
@@ -206,7 +206,7 @@ out_free:
return err;
}
-static int __devexit rdc321x_gpio_remove(struct platform_device *pdev)
+static int rdc321x_gpio_remove(struct platform_device *pdev)
{
int ret;
struct rdc321x_gpio *rdc321x_gpio_dev = platform_get_drvdata(pdev);
@@ -225,7 +225,7 @@ static struct platform_driver rdc321x_gpio_driver = {
.driver.name = "rdc321x-gpio",
.driver.owner = THIS_MODULE,
.probe = rdc321x_gpio_probe,
- .remove = __devexit_p(rdc321x_gpio_remove),
+ .remove = rdc321x_gpio_remove,
};
module_platform_driver(rdc321x_gpio_driver);
diff --git a/drivers/gpio/gpio-sch.c b/drivers/gpio/gpio-sch.c
index 8707d4572a06..edae963f4625 100644
--- a/drivers/gpio/gpio-sch.c
+++ b/drivers/gpio/gpio-sch.c
@@ -185,7 +185,7 @@ static struct gpio_chip sch_gpio_resume = {
.set = sch_gpio_resume_set,
};
-static int __devinit sch_gpio_probe(struct platform_device *pdev)
+static int sch_gpio_probe(struct platform_device *pdev)
{
struct resource *res;
int err, id;
@@ -271,7 +271,7 @@ err_sch_gpio_core:
return err;
}
-static int __devexit sch_gpio_remove(struct platform_device *pdev)
+static int sch_gpio_remove(struct platform_device *pdev)
{
struct resource *res;
if (gpio_ba) {
@@ -303,7 +303,7 @@ static struct platform_driver sch_gpio_driver = {
.owner = THIS_MODULE,
},
.probe = sch_gpio_probe,
- .remove = __devexit_p(sch_gpio_remove),
+ .remove = sch_gpio_remove,
};
module_platform_driver(sch_gpio_driver);
diff --git a/drivers/gpio/gpio-sodaville.c b/drivers/gpio/gpio-sodaville.c
index e25f73130b40..88f374ac7753 100644
--- a/drivers/gpio/gpio-sodaville.c
+++ b/drivers/gpio/gpio-sodaville.c
@@ -129,7 +129,7 @@ static struct irq_domain_ops irq_domain_sdv_ops = {
.xlate = sdv_xlate,
};
-static __devinit int sdv_register_irqsupport(struct sdv_gpio_chip_data *sd,
+static int sdv_register_irqsupport(struct sdv_gpio_chip_data *sd,
struct pci_dev *pdev)
{
struct irq_chip_type *ct;
@@ -186,7 +186,7 @@ out_free_desc:
return ret;
}
-static int __devinit sdv_gpio_probe(struct pci_dev *pdev,
+static int sdv_gpio_probe(struct pci_dev *pdev,
const struct pci_device_id *pci_id)
{
struct sdv_gpio_chip_data *sd;
diff --git a/drivers/gpio/gpio-spear-spics.c b/drivers/gpio/gpio-spear-spics.c
new file mode 100644
index 000000000000..5f45fc4ed5d1
--- /dev/null
+++ b/drivers/gpio/gpio-spear-spics.c
@@ -0,0 +1,217 @@
+/*
+ * SPEAr platform SPI chipselect abstraction over gpiolib
+ *
+ * Copyright (C) 2012 ST Microelectronics
+ * Shiraz Hashim <shiraz.hashim@st.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/types.h>
+
+/* maximum chipselects */
+#define NUM_OF_GPIO 4
+
+/*
+ * Provision is available on some SPEAr SoCs to control ARM PL022 spi cs
+ * through system registers. This register lies outside spi (pl022)
+ * address space into system registers.
+ *
+ * It provides control for spi chip select lines so that any chipselect
+ * (out of 4 possible chipselects in pl022) can be made low to select
+ * the particular slave.
+ */
+
+/**
+ * struct spear_spics - represents spi chip select control
+ * @base: base address
+ * @perip_cfg: configuration register
+ * @sw_enable_bit: bit to enable s/w control over chipselects
+ * @cs_value_bit: bit to program high or low chipselect
+ * @cs_enable_mask: mask to select bits required to select chipselect
+ * @cs_enable_shift: bit pos of cs_enable_mask
+ * @use_count: use count of a spi controller cs lines
+ * @last_off: stores last offset caller of set_value()
+ * @chip: gpio_chip abstraction
+ */
+struct spear_spics {
+ void __iomem *base;
+ u32 perip_cfg;
+ u32 sw_enable_bit;
+ u32 cs_value_bit;
+ u32 cs_enable_mask;
+ u32 cs_enable_shift;
+ unsigned long use_count;
+ int last_off;
+ struct gpio_chip chip;
+};
+
+/* gpio framework specific routines */
+static int spics_get_value(struct gpio_chip *chip, unsigned offset)
+{
+ return -ENXIO;
+}
+
+static void spics_set_value(struct gpio_chip *chip, unsigned offset, int value)
+{
+ struct spear_spics *spics = container_of(chip, struct spear_spics,
+ chip);
+ u32 tmp;
+
+ /* select chip select from register */
+ tmp = readl_relaxed(spics->base + spics->perip_cfg);
+ if (spics->last_off != offset) {
+ spics->last_off = offset;
+ tmp &= ~(spics->cs_enable_mask << spics->cs_enable_shift);
+ tmp |= offset << spics->cs_enable_shift;
+ }
+
+ /* toggle chip select line */
+ tmp &= ~(0x1 << spics->cs_value_bit);
+ tmp |= value << spics->cs_value_bit;
+ writel_relaxed(tmp, spics->base + spics->perip_cfg);
+}
+
+static int spics_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+ return -ENXIO;
+}
+
+static int spics_direction_output(struct gpio_chip *chip, unsigned offset,
+ int value)
+{
+ spics_set_value(chip, offset, value);
+ return 0;
+}
+
+static int spics_request(struct gpio_chip *chip, unsigned offset)
+{
+ struct spear_spics *spics = container_of(chip, struct spear_spics,
+ chip);
+ u32 tmp;
+
+ if (!spics->use_count++) {
+ tmp = readl_relaxed(spics->base + spics->perip_cfg);
+ tmp |= 0x1 << spics->sw_enable_bit;
+ tmp |= 0x1 << spics->cs_value_bit;
+ writel_relaxed(tmp, spics->base + spics->perip_cfg);
+ }
+
+ return 0;
+}
+
+static void spics_free(struct gpio_chip *chip, unsigned offset)
+{
+ struct spear_spics *spics = container_of(chip, struct spear_spics,
+ chip);
+ u32 tmp;
+
+ if (!--spics->use_count) {
+ tmp = readl_relaxed(spics->base + spics->perip_cfg);
+ tmp &= ~(0x1 << spics->sw_enable_bit);
+ writel_relaxed(tmp, spics->base + spics->perip_cfg);
+ }
+}
+
+static int spics_gpio_probe(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node;
+ struct spear_spics *spics;
+ struct resource *res;
+ int ret;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "invalid IORESOURCE_MEM\n");
+ return -EBUSY;
+ }
+
+ spics = devm_kzalloc(&pdev->dev, sizeof(*spics), GFP_KERNEL);
+ if (!spics) {
+ dev_err(&pdev->dev, "memory allocation fail\n");
+ return -ENOMEM;
+ }
+
+ spics->base = devm_request_and_ioremap(&pdev->dev, res);
+ if (!spics->base) {
+ dev_err(&pdev->dev, "request and ioremap fail\n");
+ return -ENOMEM;
+ }
+
+ if (of_property_read_u32(np, "st-spics,peripcfg-reg",
+ &spics->perip_cfg))
+ goto err_dt_data;
+ if (of_property_read_u32(np, "st-spics,sw-enable-bit",
+ &spics->sw_enable_bit))
+ goto err_dt_data;
+ if (of_property_read_u32(np, "st-spics,cs-value-bit",
+ &spics->cs_value_bit))
+ goto err_dt_data;
+ if (of_property_read_u32(np, "st-spics,cs-enable-mask",
+ &spics->cs_enable_mask))
+ goto err_dt_data;
+ if (of_property_read_u32(np, "st-spics,cs-enable-shift",
+ &spics->cs_enable_shift))
+ goto err_dt_data;
+
+ platform_set_drvdata(pdev, spics);
+
+ spics->chip.ngpio = NUM_OF_GPIO;
+ spics->chip.base = -1;
+ spics->chip.request = spics_request;
+ spics->chip.free = spics_free;
+ spics->chip.direction_input = spics_direction_input;
+ spics->chip.direction_output = spics_direction_output;
+ spics->chip.get = spics_get_value;
+ spics->chip.set = spics_set_value;
+ spics->chip.label = dev_name(&pdev->dev);
+ spics->chip.dev = &pdev->dev;
+ spics->chip.owner = THIS_MODULE;
+ spics->last_off = -1;
+
+ ret = gpiochip_add(&spics->chip);
+ if (ret) {
+ dev_err(&pdev->dev, "unable to add gpio chip\n");
+ return ret;
+ }
+
+ dev_info(&pdev->dev, "spear spics registered\n");
+ return 0;
+
+err_dt_data:
+ dev_err(&pdev->dev, "DT probe failed\n");
+ return -EINVAL;
+}
+
+static const struct of_device_id spics_gpio_of_match[] = {
+ { .compatible = "st,spear-spics-gpio" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, spics_gpio_of_match);
+
+static struct platform_driver spics_gpio_driver = {
+ .probe = spics_gpio_probe,
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "spear-spics-gpio",
+ .of_match_table = spics_gpio_of_match,
+ },
+};
+
+static int __init spics_gpio_init(void)
+{
+ return platform_driver_register(&spics_gpio_driver);
+}
+subsys_initcall(spics_gpio_init);
+
+MODULE_AUTHOR("Shiraz Hashim <shiraz.hashim@st.com>");
+MODULE_DESCRIPTION("ST Microlectronics SPEAr SPI Chip Select Abstraction");
+MODULE_LICENSE("GPL");
diff --git a/drivers/gpio/gpio-sta2x11.c b/drivers/gpio/gpio-sta2x11.c
index 6064fb376e11..558542552aae 100644
--- a/drivers/gpio/gpio-sta2x11.c
+++ b/drivers/gpio/gpio-sta2x11.c
@@ -320,7 +320,7 @@ static irqreturn_t gsta_gpio_handler(int irq, void *dev_id)
return ret;
}
-static __devinit void gsta_alloc_irq_chip(struct gsta_gpio *chip)
+static void gsta_alloc_irq_chip(struct gsta_gpio *chip)
{
struct irq_chip_generic *gc;
struct irq_chip_type *ct;
@@ -353,7 +353,7 @@ static __devinit void gsta_alloc_irq_chip(struct gsta_gpio *chip)
}
/* The platform device used here is instantiated by the MFD device */
-static int __devinit gsta_probe(struct platform_device *dev)
+static int gsta_probe(struct platform_device *dev)
{
int i, err;
struct pci_dev *pdev;
diff --git a/drivers/gpio/gpio-stmpe.c b/drivers/gpio/gpio-stmpe.c
index dce34727bbf8..770476a9da87 100644
--- a/drivers/gpio/gpio-stmpe.c
+++ b/drivers/gpio/gpio-stmpe.c
@@ -11,7 +11,9 @@
#include <linux/slab.h>
#include <linux/gpio.h>
#include <linux/irq.h>
+#include <linux/irqdomain.h>
#include <linux/interrupt.h>
+#include <linux/of.h>
#include <linux/mfd/stmpe.h>
/*
@@ -28,6 +30,7 @@ struct stmpe_gpio {
struct stmpe *stmpe;
struct device *dev;
struct mutex irq_lock;
+ struct irq_domain *domain;
int irq_base;
unsigned norequest_mask;
@@ -103,7 +106,7 @@ static int stmpe_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
{
struct stmpe_gpio *stmpe_gpio = to_stmpe_gpio(chip);
- return stmpe_gpio->irq_base + offset;
+ return irq_create_mapping(stmpe_gpio->domain, offset);
}
static int stmpe_gpio_request(struct gpio_chip *chip, unsigned offset)
@@ -132,7 +135,7 @@ static struct gpio_chip template_chip = {
static int stmpe_gpio_irq_set_type(struct irq_data *d, unsigned int type)
{
struct stmpe_gpio *stmpe_gpio = irq_data_get_irq_chip_data(d);
- int offset = d->irq - stmpe_gpio->irq_base;
+ int offset = d->hwirq;
int regoffset = offset / 8;
int mask = 1 << (offset % 8);
@@ -199,7 +202,7 @@ static void stmpe_gpio_irq_sync_unlock(struct irq_data *d)
static void stmpe_gpio_irq_mask(struct irq_data *d)
{
struct stmpe_gpio *stmpe_gpio = irq_data_get_irq_chip_data(d);
- int offset = d->irq - stmpe_gpio->irq_base;
+ int offset = d->hwirq;
int regoffset = offset / 8;
int mask = 1 << (offset % 8);
@@ -209,7 +212,7 @@ static void stmpe_gpio_irq_mask(struct irq_data *d)
static void stmpe_gpio_irq_unmask(struct irq_data *d)
{
struct stmpe_gpio *stmpe_gpio = irq_data_get_irq_chip_data(d);
- int offset = d->irq - stmpe_gpio->irq_base;
+ int offset = d->hwirq;
int regoffset = offset / 8;
int mask = 1 << (offset % 8);
@@ -251,8 +254,9 @@ static irqreturn_t stmpe_gpio_irq(int irq, void *dev)
while (stat) {
int bit = __ffs(stat);
int line = bank * 8 + bit;
+ int virq = irq_find_mapping(stmpe_gpio->domain, line);
- handle_nested_irq(stmpe_gpio->irq_base + line);
+ handle_nested_irq(virq);
stat &= ~(1 << bit);
}
@@ -267,43 +271,61 @@ static irqreturn_t stmpe_gpio_irq(int irq, void *dev)
return IRQ_HANDLED;
}
-static int __devinit stmpe_gpio_irq_init(struct stmpe_gpio *stmpe_gpio)
+int stmpe_gpio_irq_map(struct irq_domain *d, unsigned int virq,
+ irq_hw_number_t hwirq)
{
- int base = stmpe_gpio->irq_base;
- int irq;
+ struct stmpe_gpio *stmpe_gpio = d->host_data;
+
+ if (!stmpe_gpio)
+ return -EINVAL;
- for (irq = base; irq < base + stmpe_gpio->chip.ngpio; irq++) {
- irq_set_chip_data(irq, stmpe_gpio);
- irq_set_chip_and_handler(irq, &stmpe_gpio_irq_chip,
- handle_simple_irq);
- irq_set_nested_thread(irq, 1);
+ irq_set_chip_data(hwirq, stmpe_gpio);
+ irq_set_chip_and_handler(hwirq, &stmpe_gpio_irq_chip,
+ handle_simple_irq);
+ irq_set_nested_thread(hwirq, 1);
#ifdef CONFIG_ARM
- set_irq_flags(irq, IRQF_VALID);
+ set_irq_flags(hwirq, IRQF_VALID);
#else
- irq_set_noprobe(irq);
+ irq_set_noprobe(hwirq);
#endif
- }
return 0;
}
-static void stmpe_gpio_irq_remove(struct stmpe_gpio *stmpe_gpio)
+void stmpe_gpio_irq_unmap(struct irq_domain *d, unsigned int virq)
{
- int base = stmpe_gpio->irq_base;
- int irq;
-
- for (irq = base; irq < base + stmpe_gpio->chip.ngpio; irq++) {
#ifdef CONFIG_ARM
- set_irq_flags(irq, 0);
+ set_irq_flags(virq, 0);
#endif
- irq_set_chip_and_handler(irq, NULL, NULL);
- irq_set_chip_data(irq, NULL);
+ irq_set_chip_and_handler(virq, NULL, NULL);
+ irq_set_chip_data(virq, NULL);
+}
+
+static const struct irq_domain_ops stmpe_gpio_irq_simple_ops = {
+ .unmap = stmpe_gpio_irq_unmap,
+ .map = stmpe_gpio_irq_map,
+ .xlate = irq_domain_xlate_twocell,
+};
+
+static int stmpe_gpio_irq_init(struct stmpe_gpio *stmpe_gpio)
+{
+ int base = stmpe_gpio->irq_base;
+
+ stmpe_gpio->domain = irq_domain_add_simple(NULL,
+ stmpe_gpio->chip.ngpio, base,
+ &stmpe_gpio_irq_simple_ops, stmpe_gpio);
+ if (!stmpe_gpio->domain) {
+ dev_err(stmpe_gpio->dev, "failed to create irqdomain\n");
+ return -ENOSYS;
}
+
+ return 0;
}
-static int __devinit stmpe_gpio_probe(struct platform_device *pdev)
+static int stmpe_gpio_probe(struct platform_device *pdev)
{
struct stmpe *stmpe = dev_get_drvdata(pdev->dev.parent);
+ struct device_node *np = pdev->dev.of_node;
struct stmpe_gpio_platform_data *pdata;
struct stmpe_gpio *stmpe_gpio;
int ret;
@@ -321,13 +343,17 @@ static int __devinit stmpe_gpio_probe(struct platform_device *pdev)
stmpe_gpio->dev = &pdev->dev;
stmpe_gpio->stmpe = stmpe;
- stmpe_gpio->norequest_mask = pdata ? pdata->norequest_mask : 0;
-
stmpe_gpio->chip = template_chip;
stmpe_gpio->chip.ngpio = stmpe->num_gpios;
stmpe_gpio->chip.dev = &pdev->dev;
stmpe_gpio->chip.base = pdata ? pdata->gpio_base : -1;
+ if (pdata)
+ stmpe_gpio->norequest_mask = pdata->norequest_mask;
+ else if (np)
+ of_property_read_u32(np, "st,norequest-mask",
+ &stmpe_gpio->norequest_mask);
+
if (irq >= 0)
stmpe_gpio->irq_base = stmpe->irq_base + STMPE_INT_GPIO(0);
else
@@ -348,7 +374,7 @@ static int __devinit stmpe_gpio_probe(struct platform_device *pdev)
IRQF_ONESHOT, "stmpe-gpio", stmpe_gpio);
if (ret) {
dev_err(&pdev->dev, "unable to get irq: %d\n", ret);
- goto out_removeirq;
+ goto out_disable;
}
}
@@ -368,9 +394,6 @@ static int __devinit stmpe_gpio_probe(struct platform_device *pdev)
out_freeirq:
if (irq >= 0)
free_irq(irq, stmpe_gpio);
-out_removeirq:
- if (irq >= 0)
- stmpe_gpio_irq_remove(stmpe_gpio);
out_disable:
stmpe_disable(stmpe, STMPE_BLOCK_GPIO);
out_free:
@@ -378,7 +401,7 @@ out_free:
return ret;
}
-static int __devexit stmpe_gpio_remove(struct platform_device *pdev)
+static int stmpe_gpio_remove(struct platform_device *pdev)
{
struct stmpe_gpio *stmpe_gpio = platform_get_drvdata(pdev);
struct stmpe *stmpe = stmpe_gpio->stmpe;
@@ -398,10 +421,9 @@ static int __devexit stmpe_gpio_remove(struct platform_device *pdev)
stmpe_disable(stmpe, STMPE_BLOCK_GPIO);
- if (irq >= 0) {
+ if (irq >= 0)
free_irq(irq, stmpe_gpio);
- stmpe_gpio_irq_remove(stmpe_gpio);
- }
+
platform_set_drvdata(pdev, NULL);
kfree(stmpe_gpio);
@@ -412,7 +434,7 @@ static struct platform_driver stmpe_gpio_driver = {
.driver.name = "stmpe-gpio",
.driver.owner = THIS_MODULE,
.probe = stmpe_gpio_probe,
- .remove = __devexit_p(stmpe_gpio_remove),
+ .remove = stmpe_gpio_remove,
};
static int __init stmpe_gpio_init(void)
diff --git a/drivers/gpio/gpio-stp-xway.c b/drivers/gpio/gpio-stp-xway.c
index 8bead0bb6459..85841ee70b17 100644
--- a/drivers/gpio/gpio-stp-xway.c
+++ b/drivers/gpio/gpio-stp-xway.c
@@ -197,7 +197,7 @@ static int xway_stp_hw_init(struct xway_stp *chip)
return 0;
}
-static int __devinit xway_stp_probe(struct platform_device *pdev)
+static int xway_stp_probe(struct platform_device *pdev)
{
struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
const __be32 *shadow, *groups, *dsl, *phy;
diff --git a/drivers/gpio/gpio-sx150x.c b/drivers/gpio/gpio-sx150x.c
index eb3e215d2396..796b6c42fa70 100644
--- a/drivers/gpio/gpio-sx150x.c
+++ b/drivers/gpio/gpio-sx150x.c
@@ -575,7 +575,7 @@ static void sx150x_remove_irq_chip(struct sx150x_chip *chip)
}
}
-static int __devinit sx150x_probe(struct i2c_client *client,
+static int sx150x_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
static const u32 i2c_funcs = I2C_FUNC_SMBUS_BYTE_DATA |
@@ -622,7 +622,7 @@ probe_fail_pre_gpiochip_add:
return rc;
}
-static int __devexit sx150x_remove(struct i2c_client *client)
+static int sx150x_remove(struct i2c_client *client)
{
struct sx150x_chip *chip;
int rc;
@@ -646,7 +646,7 @@ static struct i2c_driver sx150x_driver = {
.owner = THIS_MODULE
},
.probe = sx150x_probe,
- .remove = __devexit_p(sx150x_remove),
+ .remove = sx150x_remove,
.id_table = sx150x_id,
};
diff --git a/drivers/gpio/gpio-tc3589x.c b/drivers/gpio/gpio-tc3589x.c
index 1e48317e70fb..c0595bbf3268 100644
--- a/drivers/gpio/gpio-tc3589x.c
+++ b/drivers/gpio/gpio-tc3589x.c
@@ -292,17 +292,15 @@ static int tc3589x_gpio_irq_init(struct tc3589x_gpio *tc3589x_gpio,
{
int base = tc3589x_gpio->irq_base;
- if (base) {
- tc3589x_gpio->domain = irq_domain_add_legacy(
- NULL, tc3589x_gpio->chip.ngpio, base,
- 0, &tc3589x_irq_ops, tc3589x_gpio);
- }
- else {
- tc3589x_gpio->domain = irq_domain_add_linear(
- np, tc3589x_gpio->chip.ngpio,
- &tc3589x_irq_ops, tc3589x_gpio);
- }
-
+ /*
+ * If this results in a linear domain, irq_create_mapping() will
+ * take care of allocating IRQ descriptors at runtime. When a base
+ * is provided, the IRQ descriptors will be allocated when the
+ * domain is instantiated.
+ */
+ tc3589x_gpio->domain = irq_domain_add_simple(np,
+ tc3589x_gpio->chip.ngpio, base, &tc3589x_irq_ops,
+ tc3589x_gpio);
if (!tc3589x_gpio->domain) {
dev_err(tc3589x_gpio->dev, "Failed to create irqdomain\n");
return -ENOSYS;
@@ -311,7 +309,7 @@ static int tc3589x_gpio_irq_init(struct tc3589x_gpio *tc3589x_gpio,
return 0;
}
-static int __devinit tc3589x_gpio_probe(struct platform_device *pdev)
+static int tc3589x_gpio_probe(struct platform_device *pdev)
{
struct tc3589x *tc3589x = dev_get_drvdata(pdev->dev.parent);
struct tc3589x_gpio_platform_data *pdata;
@@ -389,7 +387,7 @@ out_free:
return ret;
}
-static int __devexit tc3589x_gpio_remove(struct platform_device *pdev)
+static int tc3589x_gpio_remove(struct platform_device *pdev)
{
struct tc3589x_gpio *tc3589x_gpio = platform_get_drvdata(pdev);
struct tc3589x *tc3589x = tc3589x_gpio->tc3589x;
@@ -419,7 +417,7 @@ static struct platform_driver tc3589x_gpio_driver = {
.driver.name = "tc3589x-gpio",
.driver.owner = THIS_MODULE,
.probe = tc3589x_gpio_probe,
- .remove = __devexit_p(tc3589x_gpio_remove),
+ .remove = tc3589x_gpio_remove,
};
static int __init tc3589x_gpio_init(void)
diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
index d982593d7563..63cb643d4b5a 100644
--- a/drivers/gpio/gpio-tegra.c
+++ b/drivers/gpio/gpio-tegra.c
@@ -27,6 +27,7 @@
#include <linux/module.h>
#include <linux/irqdomain.h>
#include <linux/pinctrl/consumer.h>
+#include <linux/pm.h>
#include <asm/mach/irq.h>
@@ -64,7 +65,7 @@ struct tegra_gpio_bank {
int bank;
int irq;
spinlock_t lvl_lock[4];
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
u32 cnf[4];
u32 out[4];
u32 oe[4];
@@ -109,20 +110,18 @@ static void tegra_gpio_enable(int gpio)
{
tegra_gpio_mask_write(GPIO_MSK_CNF(gpio), gpio, 1);
}
-EXPORT_SYMBOL_GPL(tegra_gpio_enable);
static void tegra_gpio_disable(int gpio)
{
tegra_gpio_mask_write(GPIO_MSK_CNF(gpio), gpio, 0);
}
-EXPORT_SYMBOL_GPL(tegra_gpio_disable);
-int tegra_gpio_request(struct gpio_chip *chip, unsigned offset)
+static int tegra_gpio_request(struct gpio_chip *chip, unsigned offset)
{
return pinctrl_request_gpio(offset);
}
-void tegra_gpio_free(struct gpio_chip *chip, unsigned offset)
+static void tegra_gpio_free(struct gpio_chip *chip, unsigned offset)
{
pinctrl_free_gpio(offset);
tegra_gpio_disable(offset);
@@ -135,6 +134,11 @@ static void tegra_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
static int tegra_gpio_get(struct gpio_chip *chip, unsigned offset)
{
+ /* If gpio is in output mode then read from the out value */
+ if ((tegra_gpio_readl(GPIO_OE(offset)) >> GPIO_BIT(offset)) & 1)
+ return (tegra_gpio_readl(GPIO_OUT(offset)) >>
+ GPIO_BIT(offset)) & 0x1;
+
return (tegra_gpio_readl(GPIO_IN(offset)) >> GPIO_BIT(offset)) & 0x1;
}
@@ -285,8 +289,8 @@ static void tegra_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
}
-#ifdef CONFIG_PM
-void tegra_gpio_resume(void)
+#ifdef CONFIG_PM_SLEEP
+static int tegra_gpio_resume(struct device *dev)
{
unsigned long flags;
int b;
@@ -308,9 +312,10 @@ void tegra_gpio_resume(void)
}
local_irq_restore(flags);
+ return 0;
}
-void tegra_gpio_suspend(void)
+static int tegra_gpio_suspend(struct device *dev)
{
unsigned long flags;
int b;
@@ -330,6 +335,7 @@ void tegra_gpio_suspend(void)
}
}
local_irq_restore(flags);
+ return 0;
}
static int tegra_gpio_wake_enable(struct irq_data *d, unsigned int enable)
@@ -345,11 +351,15 @@ static struct irq_chip tegra_gpio_irq_chip = {
.irq_mask = tegra_gpio_irq_mask,
.irq_unmask = tegra_gpio_irq_unmask,
.irq_set_type = tegra_gpio_irq_set_type,
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
.irq_set_wake = tegra_gpio_wake_enable,
#endif
};
+static const struct dev_pm_ops tegra_gpio_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(tegra_gpio_suspend, tegra_gpio_resume)
+};
+
struct tegra_gpio_soc_config {
u32 bank_stride;
u32 upper_offset;
@@ -365,7 +375,7 @@ static struct tegra_gpio_soc_config tegra30_gpio_config = {
.upper_offset = 0x80,
};
-static struct of_device_id tegra_gpio_of_match[] __devinitdata = {
+static struct of_device_id tegra_gpio_of_match[] = {
{ .compatible = "nvidia,tegra30-gpio", .data = &tegra30_gpio_config },
{ .compatible = "nvidia,tegra20-gpio", .data = &tegra20_gpio_config },
{ },
@@ -376,11 +386,10 @@ static struct of_device_id tegra_gpio_of_match[] __devinitdata = {
*/
static struct lock_class_key gpio_lock_class;
-static int __devinit tegra_gpio_probe(struct platform_device *pdev)
+static int tegra_gpio_probe(struct platform_device *pdev)
{
const struct of_device_id *match;
struct tegra_gpio_soc_config *config;
- int irq_base;
struct resource *res;
struct tegra_gpio_bank *bank;
int gpio;
@@ -417,14 +426,11 @@ static int __devinit tegra_gpio_probe(struct platform_device *pdev)
return -ENODEV;
}
- irq_base = irq_alloc_descs(-1, 0, tegra_gpio_chip.ngpio, 0);
- if (irq_base < 0) {
- dev_err(&pdev->dev, "Couldn't allocate IRQ numbers\n");
- return -ENODEV;
- }
- irq_domain = irq_domain_add_legacy(pdev->dev.of_node,
- tegra_gpio_chip.ngpio, irq_base, 0,
+ irq_domain = irq_domain_add_linear(pdev->dev.of_node,
+ tegra_gpio_chip.ngpio,
&irq_domain_simple_ops, NULL);
+ if (!irq_domain)
+ return -ENODEV;
for (i = 0; i < tegra_gpio_bank_count; i++) {
res = platform_get_resource(pdev, IORESOURCE_IRQ, i);
@@ -464,7 +470,7 @@ static int __devinit tegra_gpio_probe(struct platform_device *pdev)
gpiochip_add(&tegra_gpio_chip);
for (gpio = 0; gpio < tegra_gpio_chip.ngpio; gpio++) {
- int irq = irq_find_mapping(irq_domain, gpio);
+ int irq = irq_create_mapping(irq_domain, gpio);
/* No validity check; all Tegra GPIOs are valid IRQs */
bank = &tegra_gpio_banks[GPIO_BANK(gpio)];
@@ -493,6 +499,7 @@ static struct platform_driver tegra_gpio_driver = {
.driver = {
.name = "tegra-gpio",
.owner = THIS_MODULE,
+ .pm = &tegra_gpio_pm_ops,
.of_match_table = tegra_gpio_of_match,
},
.probe = tegra_gpio_probe,
diff --git a/drivers/gpio/gpio-timberdale.c b/drivers/gpio/gpio-timberdale.c
index 1a3e2b9b4772..702cca9284f1 100644
--- a/drivers/gpio/gpio-timberdale.c
+++ b/drivers/gpio/gpio-timberdale.c
@@ -222,7 +222,7 @@ static struct irq_chip timbgpio_irqchip = {
.irq_set_type = timbgpio_irq_type,
};
-static int __devinit timbgpio_probe(struct platform_device *pdev)
+static int timbgpio_probe(struct platform_device *pdev)
{
int err, i;
struct gpio_chip *gc;
@@ -316,7 +316,7 @@ err_mem:
return err;
}
-static int __devexit timbgpio_remove(struct platform_device *pdev)
+static int timbgpio_remove(struct platform_device *pdev)
{
int err;
struct timbgpio_platform_data *pdata = pdev->dev.platform_data;
diff --git a/drivers/gpio/gpio-tps6586x.c b/drivers/gpio/gpio-tps6586x.c
index 2526b3bb0fae..c1b82da56504 100644
--- a/drivers/gpio/gpio-tps6586x.c
+++ b/drivers/gpio/gpio-tps6586x.c
@@ -80,7 +80,7 @@ static int tps6586x_gpio_output(struct gpio_chip *gc, unsigned offset,
val, mask);
}
-static int __devinit tps6586x_gpio_probe(struct platform_device *pdev)
+static int tps6586x_gpio_probe(struct platform_device *pdev)
{
struct tps6586x_platform_data *pdata;
struct tps6586x_gpio *tps6586x_gpio;
@@ -126,7 +126,7 @@ static int __devinit tps6586x_gpio_probe(struct platform_device *pdev)
return ret;
}
-static int __devexit tps6586x_gpio_remove(struct platform_device *pdev)
+static int tps6586x_gpio_remove(struct platform_device *pdev)
{
struct tps6586x_gpio *tps6586x_gpio = platform_get_drvdata(pdev);
@@ -137,7 +137,7 @@ static struct platform_driver tps6586x_gpio_driver = {
.driver.name = "tps6586x-gpio",
.driver.owner = THIS_MODULE,
.probe = tps6586x_gpio_probe,
- .remove = __devexit_p(tps6586x_gpio_remove),
+ .remove = tps6586x_gpio_remove,
};
static int __init tps6586x_gpio_init(void)
diff --git a/drivers/gpio/gpio-tps65910.c b/drivers/gpio/gpio-tps65910.c
index 11f29c82253c..5083825a0348 100644
--- a/drivers/gpio/gpio-tps65910.c
+++ b/drivers/gpio/gpio-tps65910.c
@@ -113,7 +113,7 @@ static struct tps65910_board *tps65910_parse_dt_for_gpio(struct device *dev,
}
#endif
-static int __devinit tps65910_gpio_probe(struct platform_device *pdev)
+static int tps65910_gpio_probe(struct platform_device *pdev)
{
struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent);
struct tps65910_board *pdata = dev_get_platdata(tps65910->dev);
@@ -188,7 +188,7 @@ skip_init:
return ret;
}
-static int __devexit tps65910_gpio_remove(struct platform_device *pdev)
+static int tps65910_gpio_remove(struct platform_device *pdev)
{
struct tps65910_gpio *tps65910_gpio = platform_get_drvdata(pdev);
@@ -199,7 +199,7 @@ static struct platform_driver tps65910_gpio_driver = {
.driver.name = "tps65910-gpio",
.driver.owner = THIS_MODULE,
.probe = tps65910_gpio_probe,
- .remove = __devexit_p(tps65910_gpio_remove),
+ .remove = tps65910_gpio_remove,
};
static int __init tps65910_gpio_init(void)
diff --git a/drivers/gpio/gpio-tps65912.c b/drivers/gpio/gpio-tps65912.c
index 99106d1e2e55..30a5844a7dca 100644
--- a/drivers/gpio/gpio-tps65912.c
+++ b/drivers/gpio/gpio-tps65912.c
@@ -84,7 +84,7 @@ static struct gpio_chip template_chip = {
.base = -1,
};
-static int __devinit tps65912_gpio_probe(struct platform_device *pdev)
+static int tps65912_gpio_probe(struct platform_device *pdev)
{
struct tps65912 *tps65912 = dev_get_drvdata(pdev->dev.parent);
struct tps65912_board *pdata = tps65912->dev->platform_data;
@@ -113,7 +113,7 @@ static int __devinit tps65912_gpio_probe(struct platform_device *pdev)
return ret;
}
-static int __devexit tps65912_gpio_remove(struct platform_device *pdev)
+static int tps65912_gpio_remove(struct platform_device *pdev)
{
struct tps65912_gpio_data *tps65912_gpio = platform_get_drvdata(pdev);
@@ -126,7 +126,7 @@ static struct platform_driver tps65912_gpio_driver = {
.owner = THIS_MODULE,
},
.probe = tps65912_gpio_probe,
- .remove = __devexit_p(tps65912_gpio_remove),
+ .remove = tps65912_gpio_remove,
};
static int __init tps65912_gpio_init(void)
diff --git a/drivers/gpio/gpio-ts5500.c b/drivers/gpio/gpio-ts5500.c
new file mode 100644
index 000000000000..0634ceea3c24
--- /dev/null
+++ b/drivers/gpio/gpio-ts5500.c
@@ -0,0 +1,466 @@
+/*
+ * Digital I/O driver for Technologic Systems TS-5500
+ *
+ * Copyright (c) 2012 Savoir-faire Linux Inc.
+ * Vivien Didelot <vivien.didelot@savoirfairelinux.com>
+ *
+ * Technologic Systems platforms have pin blocks, exposing several Digital
+ * Input/Output lines (DIO). This driver aims to support single pin blocks.
+ * In that sense, the support is not limited to the TS-5500 blocks.
+ * Actually, the following platforms have DIO support:
+ *
+ * TS-5500:
+ * Documentation: http://wiki.embeddedarm.com/wiki/TS-5500
+ * Blocks: DIO1, DIO2 and LCD port.
+ *
+ * TS-5600:
+ * Documentation: http://wiki.embeddedarm.com/wiki/TS-5600
+ * Blocks: LCD port (identical to TS-5500 LCD).
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/bitops.h>
+#include <linux/gpio.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_data/gpio-ts5500.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+/* List of supported Technologic Systems platforms DIO blocks */
+enum ts5500_blocks { TS5500_DIO1, TS5500_DIO2, TS5500_LCD, TS5600_LCD };
+
+struct ts5500_priv {
+ const struct ts5500_dio *pinout;
+ struct gpio_chip gpio_chip;
+ spinlock_t lock;
+ bool strap;
+ u8 hwirq;
+};
+
+/*
+ * Hex 7D is used to control several blocks (e.g. DIO2 and LCD port).
+ * This flag ensures that the region has been requested by this driver.
+ */
+static bool hex7d_reserved;
+
+/*
+ * This structure is used to describe capabilities of DIO lines,
+ * such as available directions and connected interrupt (if any).
+ */
+struct ts5500_dio {
+ const u8 value_addr;
+ const u8 value_mask;
+ const u8 control_addr;
+ const u8 control_mask;
+ const bool no_input;
+ const bool no_output;
+ const u8 irq;
+};
+
+#define TS5500_DIO_IN_OUT(vaddr, vbit, caddr, cbit) \
+ { \
+ .value_addr = vaddr, \
+ .value_mask = BIT(vbit), \
+ .control_addr = caddr, \
+ .control_mask = BIT(cbit), \
+ }
+
+#define TS5500_DIO_IN(addr, bit) \
+ { \
+ .value_addr = addr, \
+ .value_mask = BIT(bit), \
+ .no_output = true, \
+ }
+
+#define TS5500_DIO_IN_IRQ(addr, bit, _irq) \
+ { \
+ .value_addr = addr, \
+ .value_mask = BIT(bit), \
+ .no_output = true, \
+ .irq = _irq, \
+ }
+
+#define TS5500_DIO_OUT(addr, bit) \
+ { \
+ .value_addr = addr, \
+ .value_mask = BIT(bit), \
+ .no_input = true, \
+ }
+
+/*
+ * Input/Output DIO lines are programmed in groups of 4. Their values are
+ * available through 4 consecutive bits in a value port, whereas the direction
+ * of these 4 lines is driven by only 1 bit in a control port.
+ */
+#define TS5500_DIO_GROUP(vaddr, vbitfrom, caddr, cbit) \
+ TS5500_DIO_IN_OUT(vaddr, vbitfrom + 0, caddr, cbit), \
+ TS5500_DIO_IN_OUT(vaddr, vbitfrom + 1, caddr, cbit), \
+ TS5500_DIO_IN_OUT(vaddr, vbitfrom + 2, caddr, cbit), \
+ TS5500_DIO_IN_OUT(vaddr, vbitfrom + 3, caddr, cbit)
+
+/*
+ * TS-5500 DIO1 block
+ *
+ * value control dir hw
+ * addr bit addr bit in out irq name pin offset
+ *
+ * 0x7b 0 0x7a 0 x x DIO1_0 1 0
+ * 0x7b 1 0x7a 0 x x DIO1_1 3 1
+ * 0x7b 2 0x7a 0 x x DIO1_2 5 2
+ * 0x7b 3 0x7a 0 x x DIO1_3 7 3
+ * 0x7b 4 0x7a 1 x x DIO1_4 9 4
+ * 0x7b 5 0x7a 1 x x DIO1_5 11 5
+ * 0x7b 6 0x7a 1 x x DIO1_6 13 6
+ * 0x7b 7 0x7a 1 x x DIO1_7 15 7
+ * 0x7c 0 0x7a 5 x x DIO1_8 4 8
+ * 0x7c 1 0x7a 5 x x DIO1_9 6 9
+ * 0x7c 2 0x7a 5 x x DIO1_10 8 10
+ * 0x7c 3 0x7a 5 x x DIO1_11 10 11
+ * 0x7c 4 x DIO1_12 12 12
+ * 0x7c 5 x 7 DIO1_13 14 13
+ */
+static const struct ts5500_dio ts5500_dio1[] = {
+ TS5500_DIO_GROUP(0x7b, 0, 0x7a, 0),
+ TS5500_DIO_GROUP(0x7b, 4, 0x7a, 1),
+ TS5500_DIO_GROUP(0x7c, 0, 0x7a, 5),
+ TS5500_DIO_IN(0x7c, 4),
+ TS5500_DIO_IN_IRQ(0x7c, 5, 7),
+};
+
+/*
+ * TS-5500 DIO2 block
+ *
+ * value control dir hw
+ * addr bit addr bit in out irq name pin offset
+ *
+ * 0x7e 0 0x7d 0 x x DIO2_0 1 0
+ * 0x7e 1 0x7d 0 x x DIO2_1 3 1
+ * 0x7e 2 0x7d 0 x x DIO2_2 5 2
+ * 0x7e 3 0x7d 0 x x DIO2_3 7 3
+ * 0x7e 4 0x7d 1 x x DIO2_4 9 4
+ * 0x7e 5 0x7d 1 x x DIO2_5 11 5
+ * 0x7e 6 0x7d 1 x x DIO2_6 13 6
+ * 0x7e 7 0x7d 1 x x DIO2_7 15 7
+ * 0x7f 0 0x7d 5 x x DIO2_8 4 8
+ * 0x7f 1 0x7d 5 x x DIO2_9 6 9
+ * 0x7f 2 0x7d 5 x x DIO2_10 8 10
+ * 0x7f 3 0x7d 5 x x DIO2_11 10 11
+ * 0x7f 4 x 6 DIO2_13 14 12
+ */
+static const struct ts5500_dio ts5500_dio2[] = {
+ TS5500_DIO_GROUP(0x7e, 0, 0x7d, 0),
+ TS5500_DIO_GROUP(0x7e, 4, 0x7d, 1),
+ TS5500_DIO_GROUP(0x7f, 0, 0x7d, 5),
+ TS5500_DIO_IN_IRQ(0x7f, 4, 6),
+};
+
+/*
+ * TS-5500 LCD port used as DIO block
+ * TS-5600 LCD port is identical
+ *
+ * value control dir hw
+ * addr bit addr bit in out irq name pin offset
+ *
+ * 0x72 0 0x7d 2 x x LCD_0 8 0
+ * 0x72 1 0x7d 2 x x LCD_1 7 1
+ * 0x72 2 0x7d 2 x x LCD_2 10 2
+ * 0x72 3 0x7d 2 x x LCD_3 9 3
+ * 0x72 4 0x7d 3 x x LCD_4 12 4
+ * 0x72 5 0x7d 3 x x LCD_5 11 5
+ * 0x72 6 0x7d 3 x x LCD_6 14 6
+ * 0x72 7 0x7d 3 x x LCD_7 13 7
+ * 0x73 0 x LCD_EN 5 8
+ * 0x73 6 x LCD_WR 6 9
+ * 0x73 7 x 1 LCD_RS 3 10
+ */
+static const struct ts5500_dio ts5500_lcd[] = {
+ TS5500_DIO_GROUP(0x72, 0, 0x7d, 2),
+ TS5500_DIO_GROUP(0x72, 4, 0x7d, 3),
+ TS5500_DIO_OUT(0x73, 0),
+ TS5500_DIO_IN(0x73, 6),
+ TS5500_DIO_IN_IRQ(0x73, 7, 1),
+};
+
+static inline struct ts5500_priv *ts5500_gc_to_priv(struct gpio_chip *chip)
+{
+ return container_of(chip, struct ts5500_priv, gpio_chip);
+}
+
+static inline void ts5500_set_mask(u8 mask, u8 addr)
+{
+ u8 val = inb(addr);
+ val |= mask;
+ outb(val, addr);
+}
+
+static inline void ts5500_clear_mask(u8 mask, u8 addr)
+{
+ u8 val = inb(addr);
+ val &= ~mask;
+ outb(val, addr);
+}
+
+static int ts5500_gpio_input(struct gpio_chip *chip, unsigned offset)
+{
+ struct ts5500_priv *priv = ts5500_gc_to_priv(chip);
+ const struct ts5500_dio line = priv->pinout[offset];
+ unsigned long flags;
+
+ if (line.no_input)
+ return -ENXIO;
+
+ if (line.no_output)
+ return 0;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ ts5500_clear_mask(line.control_mask, line.control_addr);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ return 0;
+}
+
+static int ts5500_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+ struct ts5500_priv *priv = ts5500_gc_to_priv(chip);
+ const struct ts5500_dio line = priv->pinout[offset];
+
+ return !!(inb(line.value_addr) & line.value_mask);
+}
+
+static int ts5500_gpio_output(struct gpio_chip *chip, unsigned offset, int val)
+{
+ struct ts5500_priv *priv = ts5500_gc_to_priv(chip);
+ const struct ts5500_dio line = priv->pinout[offset];
+ unsigned long flags;
+
+ if (line.no_output)
+ return -ENXIO;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ if (!line.no_input)
+ ts5500_set_mask(line.control_mask, line.control_addr);
+
+ if (val)
+ ts5500_set_mask(line.value_mask, line.value_addr);
+ else
+ ts5500_clear_mask(line.value_mask, line.value_addr);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ return 0;
+}
+
+static void ts5500_gpio_set(struct gpio_chip *chip, unsigned offset, int val)
+{
+ struct ts5500_priv *priv = ts5500_gc_to_priv(chip);
+ const struct ts5500_dio line = priv->pinout[offset];
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ if (val)
+ ts5500_set_mask(line.value_mask, line.value_addr);
+ else
+ ts5500_clear_mask(line.value_mask, line.value_addr);
+ spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static int ts5500_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+ struct ts5500_priv *priv = ts5500_gc_to_priv(chip);
+ const struct ts5500_dio *block = priv->pinout;
+ const struct ts5500_dio line = block[offset];
+
+ /* Only one pin is connected to an interrupt */
+ if (line.irq)
+ return line.irq;
+
+ /* As this pin is input-only, we may strap it to another in/out pin */
+ if (priv->strap)
+ return priv->hwirq;
+
+ return -ENXIO;
+}
+
+static int ts5500_enable_irq(struct ts5500_priv *priv)
+{
+ int ret = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ if (priv->hwirq == 7)
+ ts5500_set_mask(BIT(7), 0x7a); /* DIO1_13 on IRQ7 */
+ else if (priv->hwirq == 6)
+ ts5500_set_mask(BIT(7), 0x7d); /* DIO2_13 on IRQ6 */
+ else if (priv->hwirq == 1)
+ ts5500_set_mask(BIT(6), 0x7d); /* LCD_RS on IRQ1 */
+ else
+ ret = -EINVAL;
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ return ret;
+}
+
+static void ts5500_disable_irq(struct ts5500_priv *priv)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ if (priv->hwirq == 7)
+ ts5500_clear_mask(BIT(7), 0x7a); /* DIO1_13 on IRQ7 */
+ else if (priv->hwirq == 6)
+ ts5500_clear_mask(BIT(7), 0x7d); /* DIO2_13 on IRQ6 */
+ else if (priv->hwirq == 1)
+ ts5500_clear_mask(BIT(6), 0x7d); /* LCD_RS on IRQ1 */
+ else
+ dev_err(priv->gpio_chip.dev, "invalid hwirq %d\n", priv->hwirq);
+ spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static int __devinit ts5500_dio_probe(struct platform_device *pdev)
+{
+ enum ts5500_blocks block = platform_get_device_id(pdev)->driver_data;
+ struct ts5500_dio_platform_data *pdata = pdev->dev.platform_data;
+ struct device *dev = &pdev->dev;
+ const char *name = dev_name(dev);
+ struct ts5500_priv *priv;
+ struct resource *res;
+ unsigned long flags;
+ int ret;
+
+ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (!res) {
+ dev_err(dev, "missing IRQ resource\n");
+ return -EINVAL;
+ }
+
+ priv = devm_kzalloc(dev, sizeof(struct ts5500_priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, priv);
+ priv->hwirq = res->start;
+ spin_lock_init(&priv->lock);
+
+ priv->gpio_chip.owner = THIS_MODULE;
+ priv->gpio_chip.label = name;
+ priv->gpio_chip.dev = dev;
+ priv->gpio_chip.direction_input = ts5500_gpio_input;
+ priv->gpio_chip.direction_output = ts5500_gpio_output;
+ priv->gpio_chip.get = ts5500_gpio_get;
+ priv->gpio_chip.set = ts5500_gpio_set;
+ priv->gpio_chip.to_irq = ts5500_gpio_to_irq;
+ priv->gpio_chip.base = -1;
+ if (pdata) {
+ priv->gpio_chip.base = pdata->base;
+ priv->strap = pdata->strap;
+ }
+
+ switch (block) {
+ case TS5500_DIO1:
+ priv->pinout = ts5500_dio1;
+ priv->gpio_chip.ngpio = ARRAY_SIZE(ts5500_dio1);
+
+ if (!devm_request_region(dev, 0x7a, 3, name)) {
+ dev_err(dev, "failed to request %s ports\n", name);
+ return -EBUSY;
+ }
+ break;
+ case TS5500_DIO2:
+ priv->pinout = ts5500_dio2;
+ priv->gpio_chip.ngpio = ARRAY_SIZE(ts5500_dio2);
+
+ if (!devm_request_region(dev, 0x7e, 2, name)) {
+ dev_err(dev, "failed to request %s ports\n", name);
+ return -EBUSY;
+ }
+
+ if (hex7d_reserved)
+ break;
+
+ if (!devm_request_region(dev, 0x7d, 1, name)) {
+ dev_err(dev, "failed to request %s 7D\n", name);
+ return -EBUSY;
+ }
+
+ hex7d_reserved = true;
+ break;
+ case TS5500_LCD:
+ case TS5600_LCD:
+ priv->pinout = ts5500_lcd;
+ priv->gpio_chip.ngpio = ARRAY_SIZE(ts5500_lcd);
+
+ if (!devm_request_region(dev, 0x72, 2, name)) {
+ dev_err(dev, "failed to request %s ports\n", name);
+ return -EBUSY;
+ }
+
+ if (!hex7d_reserved) {
+ if (!devm_request_region(dev, 0x7d, 1, name)) {
+ dev_err(dev, "failed to request %s 7D\n", name);
+ return -EBUSY;
+ }
+
+ hex7d_reserved = true;
+ }
+
+ /* Ensure usage of LCD port as DIO */
+ spin_lock_irqsave(&priv->lock, flags);
+ ts5500_clear_mask(BIT(4), 0x7d);
+ spin_unlock_irqrestore(&priv->lock, flags);
+ break;
+ }
+
+ ret = gpiochip_add(&priv->gpio_chip);
+ if (ret) {
+ dev_err(dev, "failed to register the gpio chip\n");
+ return ret;
+ }
+
+ ret = ts5500_enable_irq(priv);
+ if (ret) {
+ dev_err(dev, "invalid interrupt %d\n", priv->hwirq);
+ goto cleanup;
+ }
+
+ return 0;
+cleanup:
+ if (gpiochip_remove(&priv->gpio_chip))
+ dev_err(dev, "failed to remove gpio chip\n");
+ return ret;
+}
+
+static int __devexit ts5500_dio_remove(struct platform_device *pdev)
+{
+ struct ts5500_priv *priv = platform_get_drvdata(pdev);
+
+ ts5500_disable_irq(priv);
+ return gpiochip_remove(&priv->gpio_chip);
+}
+
+static struct platform_device_id ts5500_dio_ids[] = {
+ { "ts5500-dio1", TS5500_DIO1 },
+ { "ts5500-dio2", TS5500_DIO2 },
+ { "ts5500-dio-lcd", TS5500_LCD },
+ { "ts5600-dio-lcd", TS5600_LCD },
+ { }
+};
+MODULE_DEVICE_TABLE(platform, ts5500_dio_ids);
+
+static struct platform_driver ts5500_dio_driver = {
+ .driver = {
+ .name = "ts5500-dio",
+ .owner = THIS_MODULE,
+ },
+ .probe = ts5500_dio_probe,
+ .remove = __devexit_p(ts5500_dio_remove),
+ .id_table = ts5500_dio_ids,
+};
+
+module_platform_driver(ts5500_dio_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Savoir-faire Linux Inc. <kernel@savoirfairelinux.com>");
+MODULE_DESCRIPTION("Technologic Systems TS-5500 Digital I/O driver");
diff --git a/drivers/gpio/gpio-twl4030.c b/drivers/gpio/gpio-twl4030.c
index c5f8ca233e1f..00329f2fc05b 100644
--- a/drivers/gpio/gpio-twl4030.c
+++ b/drivers/gpio/gpio-twl4030.c
@@ -88,11 +88,15 @@ static inline int gpio_twl4030_write(u8 address, u8 data)
/*----------------------------------------------------------------------*/
/*
- * LED register offsets (use TWL4030_MODULE_{LED,PWMA,PWMB}))
+ * LED register offsets from TWL_MODULE_LED base
* PWMs A and B are dedicated to LEDs A and B, respectively.
*/
-#define TWL4030_LED_LEDEN 0x0
+#define TWL4030_LED_LEDEN_REG 0x00
+#define TWL4030_PWMAON_REG 0x01
+#define TWL4030_PWMAOFF_REG 0x02
+#define TWL4030_PWMBON_REG 0x03
+#define TWL4030_PWMBOFF_REG 0x04
/* LEDEN bits */
#define LEDEN_LEDAON BIT(0)
@@ -104,9 +108,6 @@ static inline int gpio_twl4030_write(u8 address, u8 data)
#define LEDEN_PWM_LENGTHA BIT(6)
#define LEDEN_PWM_LENGTHB BIT(7)
-#define TWL4030_PWMx_PWMxON 0x0
-#define TWL4030_PWMx_PWMxOFF 0x1
-
#define PWMxON_LENGTH BIT(7)
/*----------------------------------------------------------------------*/
@@ -145,7 +146,7 @@ static void twl4030_led_set_value(int led, int value)
else
cached_leden |= mask;
status = twl_i2c_write_u8(TWL4030_MODULE_LED, cached_leden,
- TWL4030_LED_LEDEN);
+ TWL4030_LED_LEDEN_REG);
mutex_unlock(&gpio_lock);
}
@@ -216,33 +217,33 @@ static int twl_request(struct gpio_chip *chip, unsigned offset)
if (offset >= TWL4030_GPIO_MAX) {
u8 ledclr_mask = LEDEN_LEDAON | LEDEN_LEDAEXT
| LEDEN_LEDAPWM | LEDEN_PWM_LENGTHA;
- u8 module = TWL4030_MODULE_PWMA;
+ u8 reg = TWL4030_PWMAON_REG;
offset -= TWL4030_GPIO_MAX;
if (offset) {
ledclr_mask <<= 1;
- module = TWL4030_MODULE_PWMB;
+ reg = TWL4030_PWMBON_REG;
}
/* initialize PWM to always-drive */
- status = twl_i2c_write_u8(module, 0x7f,
- TWL4030_PWMx_PWMxOFF);
+ /* Configure PWM OFF register first */
+ status = twl_i2c_write_u8(TWL4030_MODULE_LED, 0x7f, reg + 1);
if (status < 0)
goto done;
- status = twl_i2c_write_u8(module, 0x7f,
- TWL4030_PWMx_PWMxON);
+
+ /* Followed by PWM ON register */
+ status = twl_i2c_write_u8(TWL4030_MODULE_LED, 0x7f, reg);
if (status < 0)
goto done;
/* init LED to not-driven (high) */
- module = TWL4030_MODULE_LED;
- status = twl_i2c_read_u8(module, &cached_leden,
- TWL4030_LED_LEDEN);
+ status = twl_i2c_read_u8(TWL4030_MODULE_LED, &cached_leden,
+ TWL4030_LED_LEDEN_REG);
if (status < 0)
goto done;
cached_leden &= ~ledclr_mask;
- status = twl_i2c_write_u8(module, cached_leden,
- TWL4030_LED_LEDEN);
+ status = twl_i2c_write_u8(TWL4030_MODULE_LED, cached_leden,
+ TWL4030_LED_LEDEN_REG);
if (status < 0)
goto done;
@@ -352,7 +353,7 @@ static struct gpio_chip twl_gpiochip = {
/*----------------------------------------------------------------------*/
-static int __devinit gpio_twl4030_pulls(u32 ups, u32 downs)
+static int gpio_twl4030_pulls(u32 ups, u32 downs)
{
u8 message[6];
unsigned i, gpio_bit;
@@ -377,7 +378,7 @@ static int __devinit gpio_twl4030_pulls(u32 ups, u32 downs)
REG_GPIOPUPDCTR1, 5);
}
-static int __devinit gpio_twl4030_debounce(u32 debounce, u8 mmc_cd)
+static int gpio_twl4030_debounce(u32 debounce, u8 mmc_cd)
{
u8 message[4];
@@ -419,7 +420,7 @@ static struct twl4030_gpio_platform_data *of_gpio_twl4030(struct device *dev)
return omap_twl_info;
}
-static int __devinit gpio_twl4030_probe(struct platform_device *pdev)
+static int gpio_twl4030_probe(struct platform_device *pdev)
{
struct twl4030_gpio_platform_data *pdata = pdev->dev.platform_data;
struct device_node *node = pdev->dev.of_node;
@@ -505,7 +506,7 @@ out:
return ret;
}
-/* Cannot use __devexit as gpio_twl4030_probe() calls us */
+/* Cannot use as gpio_twl4030_probe() calls us */
static int gpio_twl4030_remove(struct platform_device *pdev)
{
struct twl4030_gpio_platform_data *pdata = pdev->dev.platform_data;
diff --git a/drivers/gpio/gpio-twl6040.c b/drivers/gpio/gpio-twl6040.c
index dd58e8b25043..0be82c6dd796 100644
--- a/drivers/gpio/gpio-twl6040.c
+++ b/drivers/gpio/gpio-twl6040.c
@@ -82,7 +82,7 @@ static struct gpio_chip twl6040gpo_chip = {
/*----------------------------------------------------------------------*/
-static int __devinit gpo_twl6040_probe(struct platform_device *pdev)
+static int gpo_twl6040_probe(struct platform_device *pdev)
{
struct twl6040_gpo_data *pdata = pdev->dev.platform_data;
struct device *twl6040_core_dev = pdev->dev.parent;
@@ -113,7 +113,7 @@ static int __devinit gpo_twl6040_probe(struct platform_device *pdev)
return ret;
}
-static int __devexit gpo_twl6040_remove(struct platform_device *pdev)
+static int gpo_twl6040_remove(struct platform_device *pdev)
{
return gpiochip_remove(&twl6040gpo_chip);
}
diff --git a/drivers/gpio/gpio-vr41xx.c b/drivers/gpio/gpio-vr41xx.c
index 82d5c20ad3cb..9902732a382d 100644
--- a/drivers/gpio/gpio-vr41xx.c
+++ b/drivers/gpio/gpio-vr41xx.c
@@ -490,7 +490,7 @@ static struct gpio_chip vr41xx_gpio_chip = {
.to_irq = vr41xx_gpio_to_irq,
};
-static int __devinit giu_probe(struct platform_device *pdev)
+static int giu_probe(struct platform_device *pdev)
{
struct resource *res;
unsigned int trigger, i, pin;
@@ -552,7 +552,7 @@ static int __devinit giu_probe(struct platform_device *pdev)
return cascade_irq(irq, giu_get_irq);
}
-static int __devexit giu_remove(struct platform_device *pdev)
+static int giu_remove(struct platform_device *pdev)
{
if (giu_base) {
iounmap(giu_base);
@@ -564,7 +564,7 @@ static int __devexit giu_remove(struct platform_device *pdev)
static struct platform_driver giu_device_driver = {
.probe = giu_probe,
- .remove = __devexit_p(giu_remove),
+ .remove = giu_remove,
.driver = {
.name = "GIU",
.owner = THIS_MODULE,
diff --git a/drivers/gpio/gpio-vt8500.c b/drivers/gpio/gpio-vt8500.c
index bcd8e4aa7c7d..b53320a16fc8 100644
--- a/drivers/gpio/gpio-vt8500.c
+++ b/drivers/gpio/gpio-vt8500.c
@@ -96,6 +96,7 @@ static struct vt8500_gpio_data wm8505_data = {
VT8500_BANK(0x5C, 0x84, 0xAC, 0xD4, 12),
VT8500_BANK(0x60, 0x88, 0xB0, 0xD8, 16),
VT8500_BANK(0x64, 0x8C, 0xB4, 0xDC, 22),
+ VT8500_BANK(0x500, 0x504, 0x508, 0x50C, 6),
},
};
@@ -115,6 +116,7 @@ static struct vt8500_gpio_data wm8650_data = {
VT8500_BANK(0x58, 0x98, 0xD8, 0x18, 32),
VT8500_BANK(0x5C, 0x9C, 0xDC, 0x1C, 32),
VT8500_BANK(0x7C, 0xBC, 0xFC, 0x3C, 32),
+ VT8500_BANK(0x500, 0x504, 0x508, 0x50C, 6),
},
};
@@ -269,7 +271,7 @@ static struct of_device_id vt8500_gpio_dt_ids[] = {
{ /* Sentinel */ },
};
-static int __devinit vt8500_gpio_probe(struct platform_device *pdev)
+static int vt8500_gpio_probe(struct platform_device *pdev)
{
void __iomem *gpio_base;
struct device_node *np;
diff --git a/drivers/gpio/gpio-vx855.c b/drivers/gpio/gpio-vx855.c
index 76ebfe5ff702..2b7252cb2427 100644
--- a/drivers/gpio/gpio-vx855.c
+++ b/drivers/gpio/gpio-vx855.c
@@ -219,7 +219,7 @@ static void vx855gpio_gpio_setup(struct vx855_gpio *vg)
}
/* This platform device is ordinarily registered by the vx855 mfd driver */
-static __devinit int vx855gpio_probe(struct platform_device *pdev)
+static int vx855gpio_probe(struct platform_device *pdev)
{
struct resource *res_gpi;
struct resource *res_gpo;
@@ -284,7 +284,7 @@ out_release:
return ret;
}
-static int __devexit vx855gpio_remove(struct platform_device *pdev)
+static int vx855gpio_remove(struct platform_device *pdev)
{
struct vx855_gpio *vg = platform_get_drvdata(pdev);
struct resource *res;
@@ -312,7 +312,7 @@ static struct platform_driver vx855gpio_driver = {
.owner = THIS_MODULE,
},
.probe = vx855gpio_probe,
- .remove = __devexit_p(vx855gpio_remove),
+ .remove = vx855gpio_remove,
};
module_platform_driver(vx855gpio_driver);
diff --git a/drivers/gpio/gpio-wm831x.c b/drivers/gpio/gpio-wm831x.c
index b6eda35089d5..2a743e10ecb6 100644
--- a/drivers/gpio/gpio-wm831x.c
+++ b/drivers/gpio/gpio-wm831x.c
@@ -243,7 +243,7 @@ static struct gpio_chip template_chip = {
.can_sleep = 1,
};
-static int __devinit wm831x_gpio_probe(struct platform_device *pdev)
+static int wm831x_gpio_probe(struct platform_device *pdev)
{
struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
struct wm831x_pdata *pdata = wm831x->dev->platform_data;
@@ -275,7 +275,7 @@ static int __devinit wm831x_gpio_probe(struct platform_device *pdev)
return ret;
}
-static int __devexit wm831x_gpio_remove(struct platform_device *pdev)
+static int wm831x_gpio_remove(struct platform_device *pdev)
{
struct wm831x_gpio *wm831x_gpio = platform_get_drvdata(pdev);
@@ -286,7 +286,7 @@ static struct platform_driver wm831x_gpio_driver = {
.driver.name = "wm831x-gpio",
.driver.owner = THIS_MODULE,
.probe = wm831x_gpio_probe,
- .remove = __devexit_p(wm831x_gpio_remove),
+ .remove = wm831x_gpio_remove,
};
static int __init wm831x_gpio_init(void)
diff --git a/drivers/gpio/gpio-wm8350.c b/drivers/gpio/gpio-wm8350.c
index fb4293889392..0b598cf3df9d 100644
--- a/drivers/gpio/gpio-wm8350.c
+++ b/drivers/gpio/gpio-wm8350.c
@@ -109,7 +109,7 @@ static struct gpio_chip template_chip = {
.can_sleep = 1,
};
-static int __devinit wm8350_gpio_probe(struct platform_device *pdev)
+static int wm8350_gpio_probe(struct platform_device *pdev)
{
struct wm8350 *wm8350 = dev_get_drvdata(pdev->dev.parent);
struct wm8350_platform_data *pdata = wm8350->dev->platform_data;
@@ -141,7 +141,7 @@ static int __devinit wm8350_gpio_probe(struct platform_device *pdev)
return ret;
}
-static int __devexit wm8350_gpio_remove(struct platform_device *pdev)
+static int wm8350_gpio_remove(struct platform_device *pdev)
{
struct wm8350_gpio_data *wm8350_gpio = platform_get_drvdata(pdev);
@@ -152,7 +152,7 @@ static struct platform_driver wm8350_gpio_driver = {
.driver.name = "wm8350-gpio",
.driver.owner = THIS_MODULE,
.probe = wm8350_gpio_probe,
- .remove = __devexit_p(wm8350_gpio_remove),
+ .remove = wm8350_gpio_remove,
};
static int __init wm8350_gpio_init(void)
diff --git a/drivers/gpio/gpio-wm8994.c b/drivers/gpio/gpio-wm8994.c
index 1c764e779d80..ae409fd94af7 100644
--- a/drivers/gpio/gpio-wm8994.c
+++ b/drivers/gpio/gpio-wm8994.c
@@ -245,7 +245,7 @@ static struct gpio_chip template_chip = {
.can_sleep = 1,
};
-static int __devinit wm8994_gpio_probe(struct platform_device *pdev)
+static int wm8994_gpio_probe(struct platform_device *pdev)
{
struct wm8994 *wm8994 = dev_get_drvdata(pdev->dev.parent);
struct wm8994_pdata *pdata = wm8994->dev->platform_data;
@@ -281,7 +281,7 @@ err:
return ret;
}
-static int __devexit wm8994_gpio_remove(struct platform_device *pdev)
+static int wm8994_gpio_remove(struct platform_device *pdev)
{
struct wm8994_gpio *wm8994_gpio = platform_get_drvdata(pdev);
@@ -292,7 +292,7 @@ static struct platform_driver wm8994_gpio_driver = {
.driver.name = "wm8994-gpio",
.driver.owner = THIS_MODULE,
.probe = wm8994_gpio_probe,
- .remove = __devexit_p(wm8994_gpio_remove),
+ .remove = wm8994_gpio_remove,
};
static int __init wm8994_gpio_init(void)
diff --git a/drivers/gpio/gpio-xilinx.c b/drivers/gpio/gpio-xilinx.c
index 79b0fe8a7253..9ae7aa8ca48a 100644
--- a/drivers/gpio/gpio-xilinx.c
+++ b/drivers/gpio/gpio-xilinx.c
@@ -159,7 +159,7 @@ static void xgpio_save_regs(struct of_mm_gpio_chip *mm_gc)
* driver data structure. It returns 0, if the driver is bound to the GPIO
* device, or a negative value if there is an error.
*/
-static int __devinit xgpio_of_probe(struct device_node *np)
+static int xgpio_of_probe(struct device_node *np)
{
struct xgpio_instance *chip;
int status = 0;
@@ -209,7 +209,7 @@ static int __devinit xgpio_of_probe(struct device_node *np)
return 0;
}
-static struct of_device_id xgpio_of_match[] __devinitdata = {
+static struct of_device_id xgpio_of_match[] = {
{ .compatible = "xlnx,xps-gpio-1.00.a", },
{ /* end of list */ },
};
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
new file mode 100644
index 000000000000..cbad6e908d30
--- /dev/null
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -0,0 +1,54 @@
+/*
+ * ACPI helpers for GPIO API
+ *
+ * Copyright (C) 2012, Intel Corporation
+ * Authors: Mathias Nyman <mathias.nyman@linux.intel.com>
+ * Mika Westerberg <mika.westerberg@linux.intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/errno.h>
+#include <linux/gpio.h>
+#include <linux/export.h>
+#include <linux/acpi_gpio.h>
+#include <linux/acpi.h>
+
+static int acpi_gpiochip_find(struct gpio_chip *gc, void *data)
+{
+ if (!gc->dev)
+ return false;
+
+ return ACPI_HANDLE(gc->dev) == data;
+}
+
+/**
+ * acpi_get_gpio() - Translate ACPI GPIO pin to GPIO number usable with GPIO API
+ * @path: ACPI GPIO controller full path name, (e.g. "\\_SB.GPO1")
+ * @pin: ACPI GPIO pin number (0-based, controller-relative)
+ *
+ * Returns GPIO number to use with Linux generic GPIO API, or errno error value
+ */
+
+int acpi_get_gpio(char *path, int pin)
+{
+ struct gpio_chip *chip;
+ acpi_handle handle;
+ acpi_status status;
+
+ status = acpi_get_handle(NULL, path, &handle);
+ if (ACPI_FAILURE(status))
+ return -ENODEV;
+
+ chip = gpiochip_find(handle, acpi_gpiochip_find);
+ if (!chip)
+ return -ENODEV;
+
+ if (!gpio_is_valid(chip->base + pin))
+ return -EINVAL;
+
+ return chip->base + pin;
+}
+EXPORT_SYMBOL_GPL(acpi_get_gpio);
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index f1a45997aea8..d542a141811a 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -19,6 +19,7 @@
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_gpio.h>
+#include <linux/pinctrl/pinctrl.h>
#include <linux/slab.h>
/* Private data structure for of_gpiochip_find_and_xlate */
@@ -216,6 +217,54 @@ err0:
}
EXPORT_SYMBOL(of_mm_gpiochip_add);
+#ifdef CONFIG_PINCTRL
+static void of_gpiochip_add_pin_range(struct gpio_chip *chip)
+{
+ struct device_node *np = chip->of_node;
+ struct of_phandle_args pinspec;
+ struct pinctrl_dev *pctldev;
+ int index = 0, ret;
+
+ if (!np)
+ return;
+
+ do {
+ ret = of_parse_phandle_with_args(np, "gpio-ranges",
+ "#gpio-range-cells", index, &pinspec);
+ if (ret)
+ break;
+
+ pctldev = of_pinctrl_get(pinspec.np);
+ if (!pctldev)
+ break;
+
+ /*
+ * This assumes that the n GPIO pins are consecutive in the
+ * GPIO number space, and that the pins are also consecutive
+ * in their local number space. Currently it is not possible
+ * to add different ranges for one and the same GPIO chip,
+ * as the code assumes that we have one consecutive range
+ * on both, mapping 1-to-1.
+ *
+ * TODO: make the OF bindings handle multiple sparse ranges
+ * on the same GPIO chip.
+ */
+ ret = gpiochip_add_pin_range(chip,
+ pinctrl_dev_get_name(pctldev),
+ 0, /* offset in gpiochip */
+ pinspec.args[0],
+ pinspec.args[1]);
+
+ if (ret)
+ break;
+
+ } while (index++);
+}
+
+#else
+static void of_gpiochip_add_pin_range(struct gpio_chip *chip) {}
+#endif
+
void of_gpiochip_add(struct gpio_chip *chip)
{
if ((!chip->of_node) && (chip->dev))
@@ -229,11 +278,14 @@ void of_gpiochip_add(struct gpio_chip *chip)
chip->of_xlate = of_gpio_simple_xlate;
}
+ of_gpiochip_add_pin_range(chip);
of_node_get(chip->of_node);
}
void of_gpiochip_remove(struct gpio_chip *chip)
{
+ gpiochip_remove_pin_ranges(chip);
+
if (chip->of_node)
of_node_put(chip->of_node);
}
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 1c8d9e3380e1..199fca15f270 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -191,6 +191,32 @@ err:
return ret;
}
+/* caller ensures gpio is valid and requested, chip->get_direction may sleep */
+static int gpio_get_direction(unsigned gpio)
+{
+ struct gpio_chip *chip;
+ struct gpio_desc *desc = &gpio_desc[gpio];
+ int status = -EINVAL;
+
+ chip = gpio_to_chip(gpio);
+ gpio -= chip->base;
+
+ if (!chip->get_direction)
+ return status;
+
+ status = chip->get_direction(chip, gpio);
+ if (status > 0) {
+ /* GPIOF_DIR_IN, or other positive */
+ status = 1;
+ clear_bit(FLAG_IS_OUT, &desc->flags);
+ }
+ if (status == 0) {
+ /* GPIOF_DIR_OUT */
+ set_bit(FLAG_IS_OUT, &desc->flags);
+ }
+ return status;
+}
+
#ifdef CONFIG_GPIO_SYSFS
/* lock protects against unexport_gpio() being called while
@@ -223,6 +249,7 @@ static ssize_t gpio_direction_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
const struct gpio_desc *desc = dev_get_drvdata(dev);
+ unsigned gpio = desc - gpio_desc;
ssize_t status;
mutex_lock(&sysfs_lock);
@@ -230,6 +257,7 @@ static ssize_t gpio_direction_show(struct device *dev,
if (!test_bit(FLAG_EXPORT, &desc->flags))
status = -EIO;
else
+ gpio_get_direction(gpio);
status = sprintf(buf, "%s\n",
test_bit(FLAG_IS_OUT, &desc->flags)
? "out" : "in");
@@ -704,8 +732,9 @@ int gpio_export(unsigned gpio, bool direction_may_change)
{
unsigned long flags;
struct gpio_desc *desc;
- int status = -EINVAL;
+ int status;
const char *ioname = NULL;
+ struct device *dev;
/* can't export until sysfs is available ... */
if (!gpio_class.p) {
@@ -713,59 +742,66 @@ int gpio_export(unsigned gpio, bool direction_may_change)
return -ENOENT;
}
- if (!gpio_is_valid(gpio))
- goto done;
+ if (!gpio_is_valid(gpio)) {
+ pr_debug("%s: gpio %d is not valid\n", __func__, gpio);
+ return -EINVAL;
+ }
mutex_lock(&sysfs_lock);
spin_lock_irqsave(&gpio_lock, flags);
desc = &gpio_desc[gpio];
- if (test_bit(FLAG_REQUESTED, &desc->flags)
- && !test_bit(FLAG_EXPORT, &desc->flags)) {
- status = 0;
- if (!desc->chip->direction_input
- || !desc->chip->direction_output)
- direction_may_change = false;
+ if (!test_bit(FLAG_REQUESTED, &desc->flags) ||
+ test_bit(FLAG_EXPORT, &desc->flags)) {
+ spin_unlock_irqrestore(&gpio_lock, flags);
+ pr_debug("%s: gpio %d unavailable (requested=%d, exported=%d)\n",
+ __func__, gpio,
+ test_bit(FLAG_REQUESTED, &desc->flags),
+ test_bit(FLAG_EXPORT, &desc->flags));
+ status = -EPERM;
+ goto fail_unlock;
}
+
+ if (!desc->chip->direction_input || !desc->chip->direction_output)
+ direction_may_change = false;
spin_unlock_irqrestore(&gpio_lock, flags);
if (desc->chip->names && desc->chip->names[gpio - desc->chip->base])
ioname = desc->chip->names[gpio - desc->chip->base];
- if (status == 0) {
- struct device *dev;
-
- dev = device_create(&gpio_class, desc->chip->dev, MKDEV(0, 0),
- desc, ioname ? ioname : "gpio%u", gpio);
- if (!IS_ERR(dev)) {
- status = sysfs_create_group(&dev->kobj,
- &gpio_attr_group);
-
- if (!status && direction_may_change)
- status = device_create_file(dev,
- &dev_attr_direction);
-
- if (!status && gpio_to_irq(gpio) >= 0
- && (direction_may_change
- || !test_bit(FLAG_IS_OUT,
- &desc->flags)))
- status = device_create_file(dev,
- &dev_attr_edge);
-
- if (status != 0)
- device_unregister(dev);
- } else
- status = PTR_ERR(dev);
- if (status == 0)
- set_bit(FLAG_EXPORT, &desc->flags);
+ dev = device_create(&gpio_class, desc->chip->dev, MKDEV(0, 0),
+ desc, ioname ? ioname : "gpio%u", gpio);
+ if (IS_ERR(dev)) {
+ status = PTR_ERR(dev);
+ goto fail_unlock;
}
- mutex_unlock(&sysfs_lock);
-
-done:
+ status = sysfs_create_group(&dev->kobj, &gpio_attr_group);
if (status)
- pr_debug("%s: gpio%d status %d\n", __func__, gpio, status);
+ goto fail_unregister_device;
+
+ if (direction_may_change) {
+ status = device_create_file(dev, &dev_attr_direction);
+ if (status)
+ goto fail_unregister_device;
+ }
+
+ if (gpio_to_irq(gpio) >= 0 && (direction_may_change ||
+ !test_bit(FLAG_IS_OUT, &desc->flags))) {
+ status = device_create_file(dev, &dev_attr_edge);
+ if (status)
+ goto fail_unregister_device;
+ }
+
+ set_bit(FLAG_EXPORT, &desc->flags);
+ mutex_unlock(&sysfs_lock);
+ return 0;
+fail_unregister_device:
+ device_unregister(dev);
+fail_unlock:
+ mutex_unlock(&sysfs_lock);
+ pr_debug("%s: gpio%d status %d\n", __func__, gpio, status);
return status;
}
EXPORT_SYMBOL_GPL(gpio_export);
@@ -1075,6 +1111,7 @@ int gpiochip_add(struct gpio_chip *chip)
* inputs (often with pullups enabled) so power
* usage is minimized. Linux code should set the
* gpio direction first thing; but until it does,
+ * and in case chip->get_direction is not set,
* we may expose the wrong direction in sysfs.
*/
gpio_desc[id].flags = !chip->direction_input
@@ -1083,6 +1120,10 @@ int gpiochip_add(struct gpio_chip *chip)
}
}
+#ifdef CONFIG_PINCTRL
+ INIT_LIST_HEAD(&chip->pin_ranges);
+#endif
+
of_gpiochip_add(chip);
unlock:
@@ -1123,6 +1164,7 @@ int gpiochip_remove(struct gpio_chip *chip)
spin_lock_irqsave(&gpio_lock, flags);
+ gpiochip_remove_pin_ranges(chip);
of_gpiochip_remove(chip);
for (id = chip->base; id < chip->base + chip->ngpio; id++) {
@@ -1180,6 +1222,77 @@ struct gpio_chip *gpiochip_find(void *data,
}
EXPORT_SYMBOL_GPL(gpiochip_find);
+#ifdef CONFIG_PINCTRL
+
+/**
+ * gpiochip_add_pin_range() - add a range for GPIO <-> pin mapping
+ * @chip: the gpiochip to add the range for
+ * @pinctrl_name: the dev_name() of the pin controller to map to
+ * @gpio_offset: the start offset in the current gpio_chip number space
+ * @pin_offset: the start offset in the pin controller number space
+ * @npins: the number of pins from the offset of each pin space (GPIO and
+ * pin controller) to accumulate in this range
+ */
+int gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,
+ unsigned int gpio_offset, unsigned int pin_offset,
+ unsigned int npins)
+{
+ struct gpio_pin_range *pin_range;
+ int ret;
+
+ pin_range = kzalloc(sizeof(*pin_range), GFP_KERNEL);
+ if (!pin_range) {
+ pr_err("%s: GPIO chip: failed to allocate pin ranges\n",
+ chip->label);
+ return -ENOMEM;
+ }
+
+ /* Use local offset as range ID */
+ pin_range->range.id = gpio_offset;
+ pin_range->range.gc = chip;
+ pin_range->range.name = chip->label;
+ pin_range->range.base = chip->base + gpio_offset;
+ pin_range->range.pin_base = pin_offset;
+ pin_range->range.npins = npins;
+ pin_range->pctldev = pinctrl_find_and_add_gpio_range(pinctl_name,
+ &pin_range->range);
+ if (IS_ERR(pin_range->pctldev)) {
+ ret = PTR_ERR(pin_range->pctldev);
+ pr_err("%s: GPIO chip: could not create pin range\n",
+ chip->label);
+ kfree(pin_range);
+ return ret;
+ }
+ pr_debug("GPIO chip %s: created GPIO range %d->%d ==> %s PIN %d->%d\n",
+ chip->label, gpio_offset, gpio_offset + npins - 1,
+ pinctl_name,
+ pin_offset, pin_offset + npins - 1);
+
+ list_add_tail(&pin_range->node, &chip->pin_ranges);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(gpiochip_add_pin_range);
+
+/**
+ * gpiochip_remove_pin_ranges() - remove all the GPIO <-> pin mappings
+ * @chip: the chip to remove all the mappings for
+ */
+void gpiochip_remove_pin_ranges(struct gpio_chip *chip)
+{
+ struct gpio_pin_range *pin_range, *tmp;
+
+ list_for_each_entry_safe(pin_range, tmp, &chip->pin_ranges, node) {
+ list_del(&pin_range->node);
+ pinctrl_remove_gpio_range(pin_range->pctldev,
+ &pin_range->range);
+ kfree(pin_range);
+ }
+}
+EXPORT_SYMBOL_GPL(gpiochip_remove_pin_ranges);
+
+#endif /* CONFIG_PINCTRL */
+
/* These "optional" allocation calls help prevent drivers from stomping
* on each other, and help provide better diagnostics in debugfs.
* They're called even less than the "set direction" calls.
@@ -1228,9 +1341,15 @@ int gpio_request(unsigned gpio, const char *label)
desc_set_label(desc, NULL);
module_put(chip->owner);
clear_bit(FLAG_REQUESTED, &desc->flags);
+ goto done;
}
}
-
+ if (chip->get_direction) {
+ /* chip->get_direction may sleep */
+ spin_unlock_irqrestore(&gpio_lock, flags);
+ gpio_get_direction(gpio);
+ spin_lock_irqsave(&gpio_lock, flags);
+ }
done:
if (status)
pr_debug("gpio_request: gpio-%d (%s) status %d\n",
@@ -1766,6 +1885,7 @@ static void gpiolib_dbg_show(struct seq_file *s, struct gpio_chip *chip)
if (!test_bit(FLAG_REQUESTED, &gdesc->flags))
continue;
+ gpio_get_direction(gpio);
is_out = test_bit(FLAG_IS_OUT, &gdesc->flags);
seq_printf(s, " gpio-%-3d (%-20.20s) %s %s",
gpio, gdesc->label,