powerpc/83xx: Move mcu_mpc8349emitx driver out of drivers/i2c/chips/

This patch is used to help Jean Delvare to get rid of drivers/i2c/chips/
directory. The new location suggested by Kumar Gala: as the driver is
83xx specific it's placed into arch/powerpc/platforms/83xx/.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

3 files changed, 0 insertions, 221 deletions

diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig
index 59c3d23f5bdc..b9bef04b7be4 100644
--- a/drivers/i2c/chips/Kconfig
+++ b/drivers/i2c/chips/Kconfig
@@ -139,15 +139,4 @@ config SENSORS_TSL2550
           This driver can also be built as a module.  If so, the module
           will be called tsl2550.
 
-config MCU_MPC8349EMITX
-        tristate "MPC8349E-mITX MCU driver"
-        depends on I2C && PPC_83xx
-        select GENERIC_GPIO
-        select ARCH_REQUIRE_GPIOLIB
-        help
-          Say Y here to enable soft power-off functionality on the Freescale
-          boards with the MPC8349E-mITX-compatible MCU chips. This driver will
-          also register MCU GPIOs with the generic GPIO API, so you'll able
-          to use MCU pins as GPIOs.
-
 endmenu
diff --git a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile
index 83accaaf8164..00fcb5193ac2 100644
--- a/drivers/i2c/chips/Makefile
+++ b/drivers/i2c/chips/Makefile
@@ -19,7 +19,6 @@ obj-$(CONFIG_SENSORS_PCF8574)	+= pcf8574.o
 obj-$(CONFIG_PCF8575)           += pcf8575.o
 obj-$(CONFIG_SENSORS_PCF8591)   += pcf8591.o
 obj-$(CONFIG_SENSORS_TSL2550)   += tsl2550.o
-obj-$(CONFIG_MCU_MPC8349EMITX)  += mcu_mpc8349emitx.o
 
 ifeq ($(CONFIG_I2C_DEBUG_CHIP),y)
 EXTRA_CFLAGS += -DDEBUG
diff --git a/drivers/i2c/chips/mcu_mpc8349emitx.c b/drivers/i2c/chips/mcu_mpc8349emitx.c
deleted file mode 100644
index 82a9bcb858b6..000000000000
--- a/drivers/i2c/chips/mcu_mpc8349emitx.c
+++ /dev/null
@@ -1,209 +0,0 @@
-/*
- * Power Management and GPIO expander driver for MPC8349E-mITX-compatible MCU
- *
- * Copyright (c) 2008  MontaVista Software, Inc.
- *
- * Author: Anton Vorontsov <avorontsov@ru.mvista.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/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/device.h>
-#include <linux/mutex.h>
-#include <linux/i2c.h>
-#include <linux/gpio.h>
-#include <linux/of.h>
-#include <linux/of_gpio.h>
-#include <asm/prom.h>
-#include <asm/machdep.h>
-
-/*
- * I don't have specifications for the MCU firmware, I found this register
- * and bits positions by the trial&error method.
- */
-#define MCU_REG_CTRL    0x20
-#define MCU_CTRL_POFF   0x40
-
-#define MCU_NUM_GPIO    2
-
-struct mcu {
-        struct mutex lock;
-        struct device_node *np;
-        struct i2c_client *client;
-        struct of_gpio_chip of_gc;
-        u8 reg_ctrl;
-};
-
-static struct mcu *glob_mcu;
-
-static void mcu_power_off(void)
-{
-        struct mcu *mcu = glob_mcu;
-
-        pr_info("Sending power-off request to the MCU...\n");
-        mutex_lock(&mcu->lock);
-        i2c_smbus_write_byte_data(glob_mcu->client, MCU_REG_CTRL,
-                                  mcu->reg_ctrl | MCU_CTRL_POFF);
-        mutex_unlock(&mcu->lock);
-}
-
-static void mcu_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
-{
-        struct of_gpio_chip *of_gc = to_of_gpio_chip(gc);
-        struct mcu *mcu = container_of(of_gc, struct mcu, of_gc);
-        u8 bit = 1 << (4 + gpio);
-
-        mutex_lock(&mcu->lock);
-        if (val)
-                mcu->reg_ctrl &= ~bit;
-        else
-                mcu->reg_ctrl |= bit;
-
-        i2c_smbus_write_byte_data(mcu->client, MCU_REG_CTRL, mcu->reg_ctrl);
-        mutex_unlock(&mcu->lock);
-}
-
-static int mcu_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
-{
-        mcu_gpio_set(gc, gpio, val);
-        return 0;
-}
-
-static int mcu_gpiochip_add(struct mcu *mcu)
-{
-        struct device_node *np;
-        struct of_gpio_chip *of_gc = &mcu->of_gc;
-        struct gpio_chip *gc = &of_gc->gc;
-        int ret;
-
-        np = of_find_compatible_node(NULL, NULL, "fsl,mcu-mpc8349emitx");
-        if (!np)
-                return -ENODEV;
-
-        gc->owner = THIS_MODULE;
-        gc->label = np->full_name;
-        gc->can_sleep = 1;
-        gc->ngpio = MCU_NUM_GPIO;
-        gc->base = -1;
-        gc->set = mcu_gpio_set;
-        gc->direction_output = mcu_gpio_dir_out;
-        of_gc->gpio_cells = 2;
-        of_gc->xlate = of_gpio_simple_xlate;
-
-        np->data = of_gc;
-        mcu->np = np;
-
-        /*
-         * We don't want to lose the node, its ->data and ->full_name...
-         * So, if succeeded, we don't put the node here.
-         */
-        ret = gpiochip_add(gc);
-        if (ret)
-                of_node_put(np);
-        return ret;
-}
-
-static int mcu_gpiochip_remove(struct mcu *mcu)
-{
-        int ret;
-
-        ret = gpiochip_remove(&mcu->of_gc.gc);
-        if (ret)
-                return ret;
-        of_node_put(mcu->np);
-
-        return 0;
-}
-
-static int __devinit mcu_probe(struct i2c_client *client,
-                               const struct i2c_device_id *id)
-{
-        struct mcu *mcu;
-        int ret;
-
-        mcu = kzalloc(sizeof(*mcu), GFP_KERNEL);
-        if (!mcu)
-                return -ENOMEM;
-
-        mutex_init(&mcu->lock);
-        mcu->client = client;
-        i2c_set_clientdata(client, mcu);
-
-        ret = i2c_smbus_read_byte_data(mcu->client, MCU_REG_CTRL);
-        if (ret < 0)
-                goto err;
-        mcu->reg_ctrl = ret;
-
-        ret = mcu_gpiochip_add(mcu);
-        if (ret)
-                goto err;
-
-        /* XXX: this is potentially racy, but there is no lock for ppc_md */
-        if (!ppc_md.power_off) {
-                glob_mcu = mcu;
-                ppc_md.power_off = mcu_power_off;
-                dev_info(&client->dev, "will provide power-off service\n");
-        }
-
-        return 0;
-err:
-        kfree(mcu);
-        return ret;
-}
-
-static int __devexit mcu_remove(struct i2c_client *client)
-{
-        struct mcu *mcu = i2c_get_clientdata(client);
-        int ret;
-
-        if (glob_mcu == mcu) {
-                ppc_md.power_off = NULL;
-                glob_mcu = NULL;
-        }
-
-        ret = mcu_gpiochip_remove(mcu);
-        if (ret)
-                return ret;
-        i2c_set_clientdata(client, NULL);
-        kfree(mcu);
-        return 0;
-}
-
-static const struct i2c_device_id mcu_ids[] = {
-        { "mcu-mpc8349emitx", },
-        {},
-};
-MODULE_DEVICE_TABLE(i2c, mcu_ids);
-
-static struct i2c_driver mcu_driver = {
-        .driver = {
-                .name = "mcu-mpc8349emitx",
-                .owner = THIS_MODULE,
-        },
-        .probe = mcu_probe,
-        .remove = __devexit_p(mcu_remove),
-        .id_table = mcu_ids,
-};
-
-static int __init mcu_init(void)
-{
-        return i2c_add_driver(&mcu_driver);
-}
-module_init(mcu_init);
-
-static void __exit mcu_exit(void)
-{
-        i2c_del_driver(&mcu_driver);
-}
-module_exit(mcu_exit);
-
-MODULE_DESCRIPTION("Power Management and GPIO expander driver for "
-                   "MPC8349E-mITX-compatible MCU");
-MODULE_AUTHOR("Anton Vorontsov <avorontsov@ru.mvista.com>");
-MODULE_LICENSE("GPL");