remove gpio_expander_omap

Now that H3 is converted to use GPIO calls, get rid of the
legacy gpio_expander_omap code ... it has no more users.

One more needless divergence from mainline gone!
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap1/Kconfig

@@ -38,7 +38,6 @@ config MACH_OMAP_H2
 config MACH_OMAP_H3
 	bool "TI H3 Support"
 	depends on ARCH_OMAP1 && ARCH_OMAP16XX
-#	select GPIOEXPANDER_OMAP
     	help
 	  TI OMAP 1710 H3 board support. Say Y here if you have such
 	  a board.

arch/arm/plat-omap/include/mach/gpioexpander.h

-/*
- * arch/arm/plat-omap/include/mach/gpioexpander.h
- *
- *
- * Copyright (C) 2004 Texas Instruments, Inc.
- *
- * This package 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 PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
-#ifndef __ASM_ARCH_OMAP_GPIOEXPANDER_H
-#define __ASM_ARCH_OMAP_GPIOEXPANDER_H
-
-/* Function Prototypes for GPIO Expander functions */
-
-#ifdef CONFIG_GPIOEXPANDER_OMAP
-int read_gpio_expa(u8 *, int);
-int write_gpio_expa(u8 , int);
-#else
-static inline int read_gpio_expa(u8 *val, int addr)
-{
-	return 0;
-}
-static inline int write_gpio_expa(u8 val, int addr)
-{
-	return 0;
-}
-#endif
-
-#endif /* __ASM_ARCH_OMAP_GPIOEXPANDER_H */

drivers/i2c/chips/Kconfig

@@ -146,13 +146,6 @@ config SENSORS_TLV320AIC23
 	  If you say yes here you get support for the I2C control
 	  interface for Texas Instruments TLV320AIC23 audio codec.
 
-config GPIOEXPANDER_OMAP
-	bool "GPIO Expander PCF8574PWR for OMAP"
-	depends on I2C && MACH_OMAP_H3
-	help
-	  If you say yes here you get support for I/O expander calls
-	  to configure IrDA, Camera and audio devices.
-
 config TWL4030_MADC
 	tristate "TWL4030 MADC Driver"
 	depends on TWL4030_CORE

drivers/i2c/chips/Makefile

@@ -21,7 +21,6 @@ obj-$(CONFIG_SENSORS_PCF8591)	+= pcf8591.o
 obj-$(CONFIG_ISP1301_OMAP)	+= isp1301_omap.o
 obj-$(CONFIG_TPS65010)		+= tps65010.o
 obj-$(CONFIG_SENSORS_TLV320AIC23) += tlv320aic23.o
-obj-$(CONFIG_GPIOEXPANDER_OMAP)	+= gpio_expander_omap.o
 obj-$(CONFIG_MENELAUS)		+= menelaus.o
 obj-$(CONFIG_SENSORS_TSL2550)	+= tsl2550.o
 obj-$(CONFIG_MCU_MPC8349EMITX)	+= mcu_mpc8349emitx.o

drivers/i2c/chips/gpio_expander_omap.c

-/*
- * drivers/i2c/chips/gpio_expander_omap.c
- *
- * Copyright (C) 2004 Texas Instruments Inc
- * Author:
- *
- * gpio expander is used to configure IrDA, camera and audio devices on omap 1710 processor.
- *
- * 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/types.h>
-#include <linux/i2c.h>
-#include <linux/errno.h>
-
-int read_gpio_expa(u8 * val, int addr);
-int write_gpio_expa(u8 val, int addr);
-
-int write_gpio_expa(u8 val, int addr)
-{
-	struct i2c_adapter *adap;
-	int err;
-	struct i2c_msg msg[1];
-	unsigned char data[1];
-
-	adap = i2c_get_adapter(1);
-	if (!adap)
-		return -ENODEV;
-	msg->addr = addr;	/* I2C address of GPIO EXPA */
-	msg->flags = 0;
-	msg->len = 1;
-	msg->buf = data;
-	data[0] = val;
-	err = i2c_transfer(adap, msg, 1);
-	if (err >= 0)
-		return 0;
-	return err;
-}
-
-/* Read from I/O EXPANDER on the H3 board.
- * The IO expanders need an independent I2C client driver.
- */
-
-int read_gpio_expa(u8 * val, int addr)
-{
-	struct i2c_adapter *adap;
-	int err;
-	struct i2c_msg msg[1];
-	unsigned char data[1];
-
-	adap = i2c_get_adapter(1);
-	if (!adap)
-		return -ENODEV;
-	msg->addr = addr;	/* I2C address of GPIO EXPA */
-	msg->flags = I2C_M_RD;
-	msg->len = 2;
-	msg->buf = data;
-	err = i2c_transfer(adap, msg, 1);
-	*val = data[0];
-
-	if (err >= 0)
-		return 0;
-	return err;
-}
-
-EXPORT_SYMBOL(read_gpio_expa);
-EXPORT_SYMBOL(write_gpio_expa);
-