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authorPatrick Delaunay <patrick.delaunay@st.com>2018-03-12 10:46:07 +0100
committerTom Rini <trini@konsulko.com>2018-03-19 16:14:20 -0400
commitd876eaf2be874b21ea293e77faa2f33ae5ad62cb (patch)
tree99babc214b3c7226aa70e1a63f372366c53c9427 /drivers/gpio
parent77aace579a9a84c74e99d2e86ecc08b1d9ca402b (diff)
dm: gpio: Convert stm32f7 driver to livetree
Update the GPIO driver to support a live device tree. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/stm32f7_gpio.c12
1 files changed, 3 insertions, 9 deletions
diff --git a/drivers/gpio/stm32f7_gpio.c b/drivers/gpio/stm32f7_gpio.c
index a7cfb8c9232..11bc66da9ba 100644
--- a/drivers/gpio/stm32f7_gpio.c
+++ b/drivers/gpio/stm32f7_gpio.c
@@ -16,14 +16,11 @@
#include <linux/errno.h>
#include <linux/io.h>
-#define MAX_SIZE_BANK_NAME 5
#define STM32_GPIOS_PER_BANK 16
#define MODE_BITS(gpio_pin) (gpio_pin * 2)
#define MODE_BITS_MASK 3
#define IN_OUT_BIT_INDEX(gpio_pin) (1UL << (gpio_pin))
-DECLARE_GLOBAL_DATA_PTR;
-
static int stm32_gpio_direction_input(struct udevice *dev, unsigned offset)
{
struct stm32_gpio_priv *priv = dev_get_priv(dev);
@@ -82,17 +79,14 @@ static int gpio_stm32_probe(struct udevice *dev)
struct gpio_dev_priv *uc_priv = dev_get_uclass_priv(dev);
struct stm32_gpio_priv *priv = dev_get_priv(dev);
fdt_addr_t addr;
- char *name;
+ const char *name;
- addr = devfdt_get_addr(dev);
+ addr = dev_read_addr(dev);
if (addr == FDT_ADDR_T_NONE)
return -EINVAL;
priv->regs = (struct stm32_gpio_regs *)addr;
- name = (char *)fdtdec_locate_byte_array(gd->fdt_blob,
- dev_of_offset(dev),
- "st,bank-name",
- MAX_SIZE_BANK_NAME);
+ name = dev_read_string(dev, "st,bank-name");
if (!name)
return -EINVAL;
uc_priv->bank_name = name;