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, 197 deletions

diff --git a/drivers/gpio/mc33880.c b/drivers/gpio/mc33880.c
deleted file mode 100644
index 4ec7975..0000000
--- a/drivers/gpio/mc33880.c
+++ /dev/null
@@ -1,197 +0,0 @@
-/*
- * mc33880.c MC33880 high-side/low-side switch GPIO driver
- * Copyright (c) 2009 Intel Corporation
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-/* Supports:
- * Freescale MC33880 high-side/low-side switch
- */
-
-#include <linux/init.h>
-#include <linux/mutex.h>
-#include <linux/spi/spi.h>
-#include <linux/spi/mc33880.h>
-#include <linux/gpio.h>
-#include <linux/slab.h>
-
-#define DRIVER_NAME "mc33880"
-
-/*
- * Pin configurations, see MAX7301 datasheet page 6
- */
-#define PIN_CONFIG_MASK 0x03
-#define PIN_CONFIG_IN_PULLUP 0x03
-#define PIN_CONFIG_IN_WO_PULLUP 0x02
-#define PIN_CONFIG_OUT 0x01
-
-#define PIN_NUMBER 8
-
-
-/*
- * Some registers must be read back to modify.
- * To save time we cache them here in memory
- */
-struct mc33880 {
-	struct mutex	lock;	/* protect from simultaneous accesses */
-	u8		port_config;
-	struct gpio_chip chip;
-	struct spi_device *spi;
-};
-
-static int mc33880_write_config(struct mc33880 *mc)
-{
-	return spi_write(mc->spi, &mc->port_config, sizeof(mc->port_config));
-}
-
-
-static int __mc33880_set(struct mc33880 *mc, unsigned offset, int value)
-{
-	if (value)
-		mc->port_config |= 1 << offset;
-	else
-		mc->port_config &= ~(1 << offset);
-
-	return mc33880_write_config(mc);
-}
-
-
-static void mc33880_set(struct gpio_chip *chip, unsigned offset, int value)
-{
-	struct mc33880 *mc = container_of(chip, struct mc33880, chip);
-
-	mutex_lock(&mc->lock);
-
-	__mc33880_set(mc, offset, value);
-
-	mutex_unlock(&mc->lock);
-}
-
-static int __devinit mc33880_probe(struct spi_device *spi)
-{
-	struct mc33880 *mc;
-	struct mc33880_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;
-
-	mc = kzalloc(sizeof(struct mc33880), GFP_KERNEL);
-	if (!mc)
-		return -ENOMEM;
-
-	mutex_init(&mc->lock);
-
-	dev_set_drvdata(&spi->dev, mc);
-
-	mc->spi = spi;
-
-	mc->chip.label = DRIVER_NAME,
-	mc->chip.set = mc33880_set;
-	mc->chip.base = pdata->base;
-	mc->chip.ngpio = PIN_NUMBER;
-	mc->chip.can_sleep = 1;
-	mc->chip.dev = &spi->dev;
-	mc->chip.owner = THIS_MODULE;
-
-	mc->port_config = 0x00;
-	/* write twice, because during initialisation the first setting
-	 * is just for testing SPI communication, and the second is the
-	 * "real" configuration
-	 */
-	ret = mc33880_write_config(mc);
-	mc->port_config = 0x00;
-	if (!ret)
-		ret = mc33880_write_config(mc);
-
-	if (ret) {
-		printk(KERN_ERR "Failed writing to " DRIVER_NAME ": %d\n", ret);
-		goto exit_destroy;
-	}
-
-	ret = gpiochip_add(&mc->chip);
-	if (ret)
-		goto exit_destroy;
-
-	return ret;
-
-exit_destroy:
-	dev_set_drvdata(&spi->dev, NULL);
-	mutex_destroy(&mc->lock);
-	kfree(mc);
-	return ret;
-}
-
-static int __devexit mc33880_remove(struct spi_device *spi)
-{
-	struct mc33880 *mc;
-	int ret;
-
-	mc = dev_get_drvdata(&spi->dev);
-	if (mc == NULL)
-		return -ENODEV;
-
-	dev_set_drvdata(&spi->dev, NULL);
-
-	ret = gpiochip_remove(&mc->chip);
-	if (!ret) {
-		mutex_destroy(&mc->lock);
-		kfree(mc);
-	} else
-		dev_err(&spi->dev, "Failed to remove the GPIO controller: %d\n",
-			ret);
-
-	return ret;
-}
-
-static struct spi_driver mc33880_driver = {
-	.driver = {
-		.name		= DRIVER_NAME,
-		.owner		= THIS_MODULE,
-	},
-	.probe		= mc33880_probe,
-	.remove		= __devexit_p(mc33880_remove),
-};
-
-static int __init mc33880_init(void)
-{
-	return spi_register_driver(&mc33880_driver);
-}
-/* register after spi postcore initcall and before
- * subsys initcalls that may rely on these GPIOs
- */
-subsys_initcall(mc33880_init);
-
-static void __exit mc33880_exit(void)
-{
-	spi_unregister_driver(&mc33880_driver);
-}
-module_exit(mc33880_exit);
-
-MODULE_AUTHOR("Mocean Laboratories <info@mocean-labs.com>");
-MODULE_LICENSE("GPL v2");
-