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, 177 deletions

diff --git a/drivers/gpio/74x164.c b/drivers/gpio/74x164.c
deleted file mode 100644
index 7fb60b6bf523..000000000000
--- a/drivers/gpio/74x164.c
+++ /dev/null
@@ -1,177 +0,0 @@
-/*
- *  74Hx164 - Generic serial-in/parallel-out 8-bits shift register GPIO driver
- *
- *  Copyright (C) 2010 Gabor Juhos <juhosg@openwrt.org>
- *  Copyright (C) 2010 Miguel Gaio <miguel.gaio@efixo.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/init.h>
-#include <linux/mutex.h>
-#include <linux/spi/spi.h>
-#include <linux/spi/74x164.h>
-#include <linux/gpio.h>
-#include <linux/slab.h>
-
-struct gen_74x164_chip {
-	struct spi_device	*spi;
-	struct gpio_chip	gpio_chip;
-	struct mutex		lock;
-	u8			port_config;
-};
-
-static struct gen_74x164_chip *gpio_to_chip(struct gpio_chip *gc)
-{
-	return container_of(gc, struct gen_74x164_chip, gpio_chip);
-}
-
-static int __gen_74x164_write_config(struct gen_74x164_chip *chip)
-{
-	return spi_write(chip->spi,
-			 &chip->port_config, sizeof(chip->port_config));
-}
-
-static int gen_74x164_get_value(struct gpio_chip *gc, unsigned offset)
-{
-	struct gen_74x164_chip *chip = gpio_to_chip(gc);
-	int ret;
-
-	mutex_lock(&chip->lock);
-	ret = (chip->port_config >> offset) & 0x1;
-	mutex_unlock(&chip->lock);
-
-	return ret;
-}
-
-static void gen_74x164_set_value(struct gpio_chip *gc,
-		unsigned offset, int val)
-{
-	struct gen_74x164_chip *chip = gpio_to_chip(gc);
-
-	mutex_lock(&chip->lock);
-	if (val)
-		chip->port_config |= (1 << offset);
-	else
-		chip->port_config &= ~(1 << offset);
-
-	__gen_74x164_write_config(chip);
-	mutex_unlock(&chip->lock);
-}
-
-static int gen_74x164_direction_output(struct gpio_chip *gc,
-		unsigned offset, int val)
-{
-	gen_74x164_set_value(gc, offset, val);
-	return 0;
-}
-
-static int __devinit gen_74x164_probe(struct spi_device *spi)
-{
-	struct gen_74x164_chip *chip;
-	struct gen_74x164_chip_platform_data *pdata;
-	int ret;
-
-	pdata = spi->dev.platform_data;
-	if (!pdata || !pdata->base) {
-		dev_dbg(&spi->dev, "incorrect or missing platform data\n");
-		return -EINVAL;
-	}
-
-	/*
-	 * bits_per_word cannot be configured in platform data
-	 */
-	spi->bits_per_word = 8;
-
-	ret = spi_setup(spi);
-	if (ret < 0)
-		return ret;
-
-	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
-	if (!chip)
-		return -ENOMEM;
-
-	mutex_init(&chip->lock);
-
-	dev_set_drvdata(&spi->dev, chip);
-
-	chip->spi = spi;
-
-	chip->gpio_chip.label = spi->modalias;
-	chip->gpio_chip.direction_output = gen_74x164_direction_output;
-	chip->gpio_chip.get = gen_74x164_get_value;
-	chip->gpio_chip.set = gen_74x164_set_value;
-	chip->gpio_chip.base = pdata->base;
-	chip->gpio_chip.ngpio = 8;
-	chip->gpio_chip.can_sleep = 1;
-	chip->gpio_chip.dev = &spi->dev;
-	chip->gpio_chip.owner = THIS_MODULE;
-
-	ret = __gen_74x164_write_config(chip);
-	if (ret) {
-		dev_err(&spi->dev, "Failed writing: %d\n", ret);
-		goto exit_destroy;
-	}
-
-	ret = gpiochip_add(&chip->gpio_chip);
-	if (ret)
-		goto exit_destroy;
-
-	return ret;
-
-exit_destroy:
-	dev_set_drvdata(&spi->dev, NULL);
-	mutex_destroy(&chip->lock);
-	kfree(chip);
-	return ret;
-}
-
-static int __devexit gen_74x164_remove(struct spi_device *spi)
-{
-	struct gen_74x164_chip *chip;
-	int ret;
-
-	chip = dev_get_drvdata(&spi->dev);
-	if (chip == NULL)
-		return -ENODEV;
-
-	dev_set_drvdata(&spi->dev, NULL);
-
-	ret = gpiochip_remove(&chip->gpio_chip);
-	if (!ret) {
-		mutex_destroy(&chip->lock);
-		kfree(chip);
-	} else
-		dev_err(&spi->dev, "Failed to remove the GPIO controller: %d\n",
-				ret);
-
-	return ret;
-}
-
-static struct spi_driver gen_74x164_driver = {
-	.driver = {
-		.name		= "74x164",
-		.owner		= THIS_MODULE,
-	},
-	.probe		= gen_74x164_probe,
-	.remove		= __devexit_p(gen_74x164_remove),
-};
-
-static int __init gen_74x164_init(void)
-{
-	return spi_register_driver(&gen_74x164_driver);
-}
-subsys_initcall(gen_74x164_init);
-
-static void __exit gen_74x164_exit(void)
-{
-	spi_unregister_driver(&gen_74x164_driver);
-}
-module_exit(gen_74x164_exit);
-
-MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
-MODULE_AUTHOR("Miguel Gaio <miguel.gaio@efixo.com>");
-MODULE_DESCRIPTION("GPIO expander driver for 74X164 8-bits shift register");
-MODULE_LICENSE("GPL v2");