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, 234 deletions

diff --git a/drivers/gpio/it8761e_gpio.c b/drivers/gpio/it8761e_gpio.c
deleted file mode 100644
index 48fc43c4bdd..00000000000
--- a/drivers/gpio/it8761e_gpio.c
+++ /dev/null
@@ -1,234 +0,0 @@
-/*
- *  it8761_gpio.c - GPIO interface for IT8761E Super I/O chip
- *
- *  Author: Denis Turischev <denis@compulab.co.il>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License 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; see the file COPYING.  If not, write to
- *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/io.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-
-#include <linux/gpio.h>
-
-#define SIO_CHIP_ID		0x8761
-#define CHIP_ID_HIGH_BYTE	0x20
-#define CHIP_ID_LOW_BYTE	0x21
-
-static u8 ports[2] = { 0x2e, 0x4e };
-static u8 port;
-
-static DEFINE_SPINLOCK(sio_lock);
-
-#define GPIO_NAME		"it8761-gpio"
-#define GPIO_BA_HIGH_BYTE	0x60
-#define GPIO_BA_LOW_BYTE	0x61
-#define GPIO_IOSIZE		4
-#define GPIO1X_IO		0xf0
-#define GPIO2X_IO		0xf1
-
-static u16 gpio_ba;
-
-static u8 read_reg(u8 addr, u8 port)
-{
-	outb(addr, port);
-	return inb(port + 1);
-}
-
-static void write_reg(u8 data, u8 addr, u8 port)
-{
-	outb(addr, port);
-	outb(data, port + 1);
-}
-
-static void enter_conf_mode(u8 port)
-{
-	outb(0x87, port);
-	outb(0x61, port);
-	outb(0x55, port);
-	outb((port == 0x2e) ? 0x55 : 0xaa, port);
-}
-
-static void exit_conf_mode(u8 port)
-{
-	outb(0x2, port);
-	outb(0x2, port + 1);
-}
-
-static void enter_gpio_mode(u8 port)
-{
-	write_reg(0x2, 0x7, port);
-}
-
-static int it8761e_gpio_get(struct gpio_chip *gc, unsigned gpio_num)
-{
-	u16 reg;
-	u8 bit;
-
-	bit = gpio_num % 8;
-	reg = (gpio_num >= 8) ? gpio_ba + 1 : gpio_ba;
-
-	return !!(inb(reg) & (1 << bit));
-}
-
-static int it8761e_gpio_direction_in(struct gpio_chip *gc, unsigned gpio_num)
-{
-	u8 curr_dirs;
-	u8 io_reg, bit;
-
-	bit = gpio_num % 8;
-	io_reg = (gpio_num >= 8) ? GPIO2X_IO : GPIO1X_IO;
-
-	spin_lock(&sio_lock);
-
-	enter_conf_mode(port);
-	enter_gpio_mode(port);
-
-	curr_dirs = read_reg(io_reg, port);
-
-	if (curr_dirs & (1 << bit))
-		write_reg(curr_dirs & ~(1 << bit), io_reg, port);
-
-	exit_conf_mode(port);
-
-	spin_unlock(&sio_lock);
-	return 0;
-}
-
-static void it8761e_gpio_set(struct gpio_chip *gc,
-				unsigned gpio_num, int val)
-{
-	u8 curr_vals, bit;
-	u16 reg;
-
-	bit = gpio_num % 8;
-	reg = (gpio_num >= 8) ? gpio_ba + 1 : gpio_ba;
-
-	spin_lock(&sio_lock);
-
-	curr_vals = inb(reg);
-	if (val)
-		outb(curr_vals | (1 << bit) , reg);
-	else
-		outb(curr_vals & ~(1 << bit), reg);
-
-	spin_unlock(&sio_lock);
-}
-
-static int it8761e_gpio_direction_out(struct gpio_chip *gc,
-					unsigned gpio_num, int val)
-{
-	u8 curr_dirs, io_reg, bit;
-
-	bit = gpio_num % 8;
-	io_reg = (gpio_num >= 8) ? GPIO2X_IO : GPIO1X_IO;
-
-	it8761e_gpio_set(gc, gpio_num, val);
-
-	spin_lock(&sio_lock);
-
-	enter_conf_mode(port);
-	enter_gpio_mode(port);
-
-	curr_dirs = read_reg(io_reg, port);
-
-	if (!(curr_dirs & (1 << bit)))
-		write_reg(curr_dirs | (1 << bit), io_reg, port);
-
-	exit_conf_mode(port);
-
-	spin_unlock(&sio_lock);
-	return 0;
-}
-
-static struct gpio_chip it8761e_gpio_chip = {
-	.label			= GPIO_NAME,
-	.owner			= THIS_MODULE,
-	.get			= it8761e_gpio_get,
-	.direction_input	= it8761e_gpio_direction_in,
-	.set			= it8761e_gpio_set,
-	.direction_output	= it8761e_gpio_direction_out,
-};
-
-static int __init it8761e_gpio_init(void)
-{
-	int i, id, err;
-
-	/* chip and port detection */
-	for (i = 0; i < ARRAY_SIZE(ports); i++) {
-		spin_lock(&sio_lock);
-		enter_conf_mode(ports[i]);
-
-		id = (read_reg(CHIP_ID_HIGH_BYTE, ports[i]) << 8) +
-				read_reg(CHIP_ID_LOW_BYTE, ports[i]);
-
-		exit_conf_mode(ports[i]);
-		spin_unlock(&sio_lock);
-
-		if (id == SIO_CHIP_ID) {
-			port = ports[i];
-			break;
-		}
-	}
-
-	if (!port)
-		return -ENODEV;
-
-	/* fetch GPIO base address */
-	enter_conf_mode(port);
-	enter_gpio_mode(port);
-	gpio_ba = (read_reg(GPIO_BA_HIGH_BYTE, port) << 8) +
-				read_reg(GPIO_BA_LOW_BYTE, port);
-	exit_conf_mode(port);
-
-	if (!request_region(gpio_ba, GPIO_IOSIZE, GPIO_NAME))
-		return -EBUSY;
-
-	it8761e_gpio_chip.base = -1;
-	it8761e_gpio_chip.ngpio = 16;
-
-	err = gpiochip_add(&it8761e_gpio_chip);
-	if (err < 0)
-		goto gpiochip_add_err;
-
-	return 0;
-
-gpiochip_add_err:
-	release_region(gpio_ba, GPIO_IOSIZE);
-	gpio_ba = 0;
-	return err;
-}
-
-static void __exit it8761e_gpio_exit(void)
-{
-	if (gpio_ba) {
-		int ret = gpiochip_remove(&it8761e_gpio_chip);
-
-		WARN(ret, "%s(): gpiochip_remove() failed, ret=%d\n",
-				__func__, ret);
-
-		release_region(gpio_ba, GPIO_IOSIZE);
-		gpio_ba = 0;
-	}
-}
-module_init(it8761e_gpio_init);
-module_exit(it8761e_gpio_exit);
-
-MODULE_AUTHOR("Denis Turischev <denis@compulab.co.il>");
-MODULE_DESCRIPTION("GPIO interface for IT8761E Super I/O chip");
-MODULE_LICENSE("GPL");