gpio: reorganize drivers

Sort the gpio makefile and enforce the naming convention gpio-*.c for
gpio drivers.

v2: cleaned up filenames in Kconfig and comment blocks
v3: fixup use of BASIC_MMIO to GENERIC_GPIO for mxc

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

1 files changed, 0 insertions, 242 deletions

diff --git a/drivers/gpio/wm8994-gpio.c b/drivers/gpio/wm8994-gpio.c
deleted file mode 100644
index c822baacd8fc..000000000000
--- a/drivers/gpio/wm8994-gpio.c
+++ /dev/null
@@ -1,242 +0,0 @@
-/*
- * wm8994-gpio.c  --  gpiolib support for Wolfson WM8994
- *
- * Copyright 2009 Wolfson Microelectronics PLC.
- *
- * Author: Mark Brown <broonie@opensource.wolfsonmicro.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/kernel.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/gpio.h>
-#include <linux/mfd/core.h>
-#include <linux/platform_device.h>
-#include <linux/seq_file.h>
-
-#include <linux/mfd/wm8994/core.h>
-#include <linux/mfd/wm8994/pdata.h>
-#include <linux/mfd/wm8994/gpio.h>
-#include <linux/mfd/wm8994/registers.h>
-
-struct wm8994_gpio {
-	struct wm8994 *wm8994;
-	struct gpio_chip gpio_chip;
-};
-
-static inline struct wm8994_gpio *to_wm8994_gpio(struct gpio_chip *chip)
-{
-	return container_of(chip, struct wm8994_gpio, gpio_chip);
-}
-
-static int wm8994_gpio_request(struct gpio_chip *chip, unsigned offset)
-{
-	struct wm8994_gpio *wm8994_gpio = to_wm8994_gpio(chip);
-	struct wm8994 *wm8994 = wm8994_gpio->wm8994;
-
-	switch (wm8994->type) {
-	case WM8958:
-		switch (offset) {
-		case 1:
-		case 2:
-		case 3:
-		case 4:
-		case 6:
-			return -EINVAL;
-		}
-		break;
-	default:
-		break;
-	}
-
-	return 0;
-}
-
-static int wm8994_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
-{
-	struct wm8994_gpio *wm8994_gpio = to_wm8994_gpio(chip);
-	struct wm8994 *wm8994 = wm8994_gpio->wm8994;
-
-	return wm8994_set_bits(wm8994, WM8994_GPIO_1 + offset,
-			       WM8994_GPN_DIR, WM8994_GPN_DIR);
-}
-
-static int wm8994_gpio_get(struct gpio_chip *chip, unsigned offset)
-{
-	struct wm8994_gpio *wm8994_gpio = to_wm8994_gpio(chip);
-	struct wm8994 *wm8994 = wm8994_gpio->wm8994;
-	int ret;
-
-	ret = wm8994_reg_read(wm8994, WM8994_GPIO_1 + offset);
-	if (ret < 0)
-		return ret;
-
-	if (ret & WM8994_GPN_LVL)
-		return 1;
-	else
-		return 0;
-}
-
-static int wm8994_gpio_direction_out(struct gpio_chip *chip,
-				     unsigned offset, int value)
-{
-	struct wm8994_gpio *wm8994_gpio = to_wm8994_gpio(chip);
-	struct wm8994 *wm8994 = wm8994_gpio->wm8994;
-
-	return wm8994_set_bits(wm8994, WM8994_GPIO_1 + offset,
-			       WM8994_GPN_DIR, 0);
-}
-
-static void wm8994_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
-{
-	struct wm8994_gpio *wm8994_gpio = to_wm8994_gpio(chip);
-	struct wm8994 *wm8994 = wm8994_gpio->wm8994;
-
-	if (value)
-		value = WM8994_GPN_LVL;
-
-	wm8994_set_bits(wm8994, WM8994_GPIO_1 + offset, WM8994_GPN_LVL, value);
-}
-
-static int wm8994_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
-{
-	struct wm8994_gpio *wm8994_gpio = to_wm8994_gpio(chip);
-	struct wm8994 *wm8994 = wm8994_gpio->wm8994;
-
-	if (!wm8994->irq_base)
-		return -EINVAL;
-
-	return wm8994->irq_base + offset;
-}
-
-
-#ifdef CONFIG_DEBUG_FS
-static void wm8994_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
-{
-	struct wm8994_gpio *wm8994_gpio = to_wm8994_gpio(chip);
-	struct wm8994 *wm8994 = wm8994_gpio->wm8994;
-	int i;
-
-	for (i = 0; i < chip->ngpio; i++) {
-		int gpio = i + chip->base;
-		int reg;
-		const char *label;
-
-		/* We report the GPIO even if it's not requested since
-		 * we're also reporting things like alternate
-		 * functions which apply even when the GPIO is not in
-		 * use as a GPIO.
-		 */
-		label = gpiochip_is_requested(chip, i);
-		if (!label)
-			label = "Unrequested";
-
-		seq_printf(s, " gpio-%-3d (%-20.20s) ", gpio, label);
-
-		reg = wm8994_reg_read(wm8994, WM8994_GPIO_1 + i);
-		if (reg < 0) {
-			dev_err(wm8994->dev,
-				"GPIO control %d read failed: %d\n",
-				gpio, reg);
-			seq_printf(s, "\n");
-			continue;
-		}
-
-		/* No decode yet; note that GPIO2 is special */
-		seq_printf(s, "(%x)\n", reg);
-	}
-}
-#else
-#define wm8994_gpio_dbg_show NULL
-#endif
-
-static struct gpio_chip template_chip = {
-	.label			= "wm8994",
-	.owner			= THIS_MODULE,
-	.request		= wm8994_gpio_request,
-	.direction_input	= wm8994_gpio_direction_in,
-	.get			= wm8994_gpio_get,
-	.direction_output	= wm8994_gpio_direction_out,
-	.set			= wm8994_gpio_set,
-	.to_irq			= wm8994_gpio_to_irq,
-	.dbg_show		= wm8994_gpio_dbg_show,
-	.can_sleep		= 1,
-};
-
-static int __devinit wm8994_gpio_probe(struct platform_device *pdev)
-{
-	struct wm8994 *wm8994 = dev_get_drvdata(pdev->dev.parent);
-	struct wm8994_pdata *pdata = wm8994->dev->platform_data;
-	struct wm8994_gpio *wm8994_gpio;
-	int ret;
-
-	wm8994_gpio = kzalloc(sizeof(*wm8994_gpio), GFP_KERNEL);
-	if (wm8994_gpio == NULL)
-		return -ENOMEM;
-
-	wm8994_gpio->wm8994 = wm8994;
-	wm8994_gpio->gpio_chip = template_chip;
-	wm8994_gpio->gpio_chip.ngpio = WM8994_GPIO_MAX;
-	wm8994_gpio->gpio_chip.dev = &pdev->dev;
-	if (pdata && pdata->gpio_base)
-		wm8994_gpio->gpio_chip.base = pdata->gpio_base;
-	else
-		wm8994_gpio->gpio_chip.base = -1;
-
-	ret = gpiochip_add(&wm8994_gpio->gpio_chip);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "Could not register gpiochip, %d\n",
-			ret);
-		goto err;
-	}
-
-	platform_set_drvdata(pdev, wm8994_gpio);
-
-	return ret;
-
-err:
-	kfree(wm8994_gpio);
-	return ret;
-}
-
-static int __devexit wm8994_gpio_remove(struct platform_device *pdev)
-{
-	struct wm8994_gpio *wm8994_gpio = platform_get_drvdata(pdev);
-	int ret;
-
-	ret = gpiochip_remove(&wm8994_gpio->gpio_chip);
-	if (ret == 0)
-		kfree(wm8994_gpio);
-
-	return ret;
-}
-
-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),
-};
-
-static int __init wm8994_gpio_init(void)
-{
-	return platform_driver_register(&wm8994_gpio_driver);
-}
-subsys_initcall(wm8994_gpio_init);
-
-static void __exit wm8994_gpio_exit(void)
-{
-	platform_driver_unregister(&wm8994_gpio_driver);
-}
-module_exit(wm8994_gpio_exit);
-
-MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
-MODULE_DESCRIPTION("GPIO interface for WM8994");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:wm8994-gpio");