Merge branch 'for_2.6.40/gpio-move' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into gpio/next

3 files changed, 104 insertions, 2113 deletions

diff --git a/arch/arm/plat-omap/Makefile b/arch/arm/plat-omap/Makefile
index a4a12859fdd5..f0233e6abcdf 100644
--- a/arch/arm/plat-omap/Makefile
+++ b/arch/arm/plat-omap/Makefile
@@ -3,7 +3,7 @@
 #
 
 # Common support
-obj-y := common.o sram.o clock.o devices.o dma.o mux.o gpio.o \
+obj-y := common.o sram.o clock.o devices.o dma.o mux.o \
 	 usb.o fb.o io.o counter_32k.o
 obj-m :=
 obj-n :=
diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
deleted file mode 100644
index efb869390199..000000000000
--- a/arch/arm/plat-omap/gpio.c
+++ /dev/null
@@ -1,2112 +0,0 @@
-/*
- *  linux/arch/arm/plat-omap/gpio.c
- *
- * Support functions for OMAP GPIO
- *
- * Copyright (C) 2003-2005 Nokia Corporation
- * Written by Juha Yrjölä <juha.yrjola@nokia.com>
- *
- * Copyright (C) 2009 Texas Instruments
- * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.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/module.h>
-#include <linux/interrupt.h>
-#include <linux/syscore_ops.h>
-#include <linux/err.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-#include <linux/slab.h>
-#include <linux/pm_runtime.h>
-
-#include <mach/hardware.h>
-#include <asm/irq.h>
-#include <mach/irqs.h>
-#include <mach/gpio.h>
-#include <asm/mach/irq.h>
-
-/*
- * OMAP1510 GPIO registers
- */
-#define OMAP1510_GPIO_DATA_INPUT	0x00
-#define OMAP1510_GPIO_DATA_OUTPUT	0x04
-#define OMAP1510_GPIO_DIR_CONTROL	0x08
-#define OMAP1510_GPIO_INT_CONTROL	0x0c
-#define OMAP1510_GPIO_INT_MASK		0x10
-#define OMAP1510_GPIO_INT_STATUS	0x14
-#define OMAP1510_GPIO_PIN_CONTROL	0x18
-
-#define OMAP1510_IH_GPIO_BASE		64
-
-/*
- * OMAP1610 specific GPIO registers
- */
-#define OMAP1610_GPIO_REVISION		0x0000
-#define OMAP1610_GPIO_SYSCONFIG		0x0010
-#define OMAP1610_GPIO_SYSSTATUS		0x0014
-#define OMAP1610_GPIO_IRQSTATUS1	0x0018
-#define OMAP1610_GPIO_IRQENABLE1	0x001c
-#define OMAP1610_GPIO_WAKEUPENABLE	0x0028
-#define OMAP1610_GPIO_DATAIN		0x002c
-#define OMAP1610_GPIO_DATAOUT		0x0030
-#define OMAP1610_GPIO_DIRECTION		0x0034
-#define OMAP1610_GPIO_EDGE_CTRL1	0x0038
-#define OMAP1610_GPIO_EDGE_CTRL2	0x003c
-#define OMAP1610_GPIO_CLEAR_IRQENABLE1	0x009c
-#define OMAP1610_GPIO_CLEAR_WAKEUPENA	0x00a8
-#define OMAP1610_GPIO_CLEAR_DATAOUT	0x00b0
-#define OMAP1610_GPIO_SET_IRQENABLE1	0x00dc
-#define OMAP1610_GPIO_SET_WAKEUPENA	0x00e8
-#define OMAP1610_GPIO_SET_DATAOUT	0x00f0
-
-/*
- * OMAP7XX specific GPIO registers
- */
-#define OMAP7XX_GPIO_DATA_INPUT		0x00
-#define OMAP7XX_GPIO_DATA_OUTPUT	0x04
-#define OMAP7XX_GPIO_DIR_CONTROL	0x08
-#define OMAP7XX_GPIO_INT_CONTROL	0x0c
-#define OMAP7XX_GPIO_INT_MASK		0x10
-#define OMAP7XX_GPIO_INT_STATUS		0x14
-
-/*
- * omap2+ specific GPIO registers
- */
-#define OMAP24XX_GPIO_REVISION		0x0000
-#define OMAP24XX_GPIO_IRQSTATUS1	0x0018
-#define OMAP24XX_GPIO_IRQSTATUS2	0x0028
-#define OMAP24XX_GPIO_IRQENABLE2	0x002c
-#define OMAP24XX_GPIO_IRQENABLE1	0x001c
-#define OMAP24XX_GPIO_WAKE_EN		0x0020
-#define OMAP24XX_GPIO_CTRL		0x0030
-#define OMAP24XX_GPIO_OE		0x0034
-#define OMAP24XX_GPIO_DATAIN		0x0038
-#define OMAP24XX_GPIO_DATAOUT		0x003c
-#define OMAP24XX_GPIO_LEVELDETECT0	0x0040
-#define OMAP24XX_GPIO_LEVELDETECT1	0x0044
-#define OMAP24XX_GPIO_RISINGDETECT	0x0048
-#define OMAP24XX_GPIO_FALLINGDETECT	0x004c
-#define OMAP24XX_GPIO_DEBOUNCE_EN	0x0050
-#define OMAP24XX_GPIO_DEBOUNCE_VAL	0x0054
-#define OMAP24XX_GPIO_CLEARIRQENABLE1	0x0060
-#define OMAP24XX_GPIO_SETIRQENABLE1	0x0064
-#define OMAP24XX_GPIO_CLEARWKUENA	0x0080
-#define OMAP24XX_GPIO_SETWKUENA		0x0084
-#define OMAP24XX_GPIO_CLEARDATAOUT	0x0090
-#define OMAP24XX_GPIO_SETDATAOUT	0x0094
-
-#define OMAP4_GPIO_REVISION		0x0000
-#define OMAP4_GPIO_EOI			0x0020
-#define OMAP4_GPIO_IRQSTATUSRAW0	0x0024
-#define OMAP4_GPIO_IRQSTATUSRAW1	0x0028
-#define OMAP4_GPIO_IRQSTATUS0		0x002c
-#define OMAP4_GPIO_IRQSTATUS1		0x0030
-#define OMAP4_GPIO_IRQSTATUSSET0	0x0034
-#define OMAP4_GPIO_IRQSTATUSSET1	0x0038
-#define OMAP4_GPIO_IRQSTATUSCLR0	0x003c
-#define OMAP4_GPIO_IRQSTATUSCLR1	0x0040
-#define OMAP4_GPIO_IRQWAKEN0		0x0044
-#define OMAP4_GPIO_IRQWAKEN1		0x0048
-#define OMAP4_GPIO_IRQENABLE1		0x011c
-#define OMAP4_GPIO_WAKE_EN		0x0120
-#define OMAP4_GPIO_IRQSTATUS2		0x0128
-#define OMAP4_GPIO_IRQENABLE2		0x012c
-#define OMAP4_GPIO_CTRL			0x0130
-#define OMAP4_GPIO_OE			0x0134
-#define OMAP4_GPIO_DATAIN		0x0138
-#define OMAP4_GPIO_DATAOUT		0x013c
-#define OMAP4_GPIO_LEVELDETECT0		0x0140
-#define OMAP4_GPIO_LEVELDETECT1		0x0144
-#define OMAP4_GPIO_RISINGDETECT		0x0148
-#define OMAP4_GPIO_FALLINGDETECT	0x014c
-#define OMAP4_GPIO_DEBOUNCENABLE	0x0150
-#define OMAP4_GPIO_DEBOUNCINGTIME	0x0154
-#define OMAP4_GPIO_CLEARIRQENABLE1	0x0160
-#define OMAP4_GPIO_SETIRQENABLE1	0x0164
-#define OMAP4_GPIO_CLEARWKUENA		0x0180
-#define OMAP4_GPIO_SETWKUENA		0x0184
-#define OMAP4_GPIO_CLEARDATAOUT		0x0190
-#define OMAP4_GPIO_SETDATAOUT		0x0194
-
-struct gpio_bank {
-	unsigned long pbase;
-	void __iomem *base;
-	u16 irq;
-	u16 virtual_irq_start;
-	int method;
-#if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP2PLUS)
-	u32 suspend_wakeup;
-	u32 saved_wakeup;
-#endif
-	u32 non_wakeup_gpios;
-	u32 enabled_non_wakeup_gpios;
-
-	u32 saved_datain;
-	u32 saved_fallingdetect;
-	u32 saved_risingdetect;
-	u32 level_mask;
-	u32 toggle_mask;
-	spinlock_t lock;
-	struct gpio_chip chip;
-	struct clk *dbck;
-	u32 mod_usage;
-	u32 dbck_enable_mask;
-	struct device *dev;
-	bool dbck_flag;
-	int stride;
-};
-
-#ifdef CONFIG_ARCH_OMAP3
-struct omap3_gpio_regs {
-	u32 irqenable1;
-	u32 irqenable2;
-	u32 wake_en;
-	u32 ctrl;
-	u32 oe;
-	u32 leveldetect0;
-	u32 leveldetect1;
-	u32 risingdetect;
-	u32 fallingdetect;
-	u32 dataout;
-};
-
-static struct omap3_gpio_regs gpio_context[OMAP34XX_NR_GPIOS];
-#endif
-
-/*
- * TODO: Cleanup gpio_bank usage as it is having information
- * related to all instances of the device
- */
-static struct gpio_bank *gpio_bank;
-
-static int bank_width;
-
-/* TODO: Analyze removing gpio_bank_count usage from driver code */
-int gpio_bank_count;
-
-static inline struct gpio_bank *get_gpio_bank(int gpio)
-{
-	if (cpu_is_omap15xx()) {
-		if (OMAP_GPIO_IS_MPUIO(gpio))
-			return &gpio_bank[0];
-		return &gpio_bank[1];
-	}
-	if (cpu_is_omap16xx()) {
-		if (OMAP_GPIO_IS_MPUIO(gpio))
-			return &gpio_bank[0];
-		return &gpio_bank[1 + (gpio >> 4)];
-	}
-	if (cpu_is_omap7xx()) {
-		if (OMAP_GPIO_IS_MPUIO(gpio))
-			return &gpio_bank[0];
-		return &gpio_bank[1 + (gpio >> 5)];
-	}
-	if (cpu_is_omap24xx())
-		return &gpio_bank[gpio >> 5];
-	if (cpu_is_omap34xx() || cpu_is_omap44xx())
-		return &gpio_bank[gpio >> 5];
-	BUG();
-	return NULL;
-}
-
-static inline int get_gpio_index(int gpio)
-{
-	if (cpu_is_omap7xx())
-		return gpio & 0x1f;
-	if (cpu_is_omap24xx())
-		return gpio & 0x1f;
-	if (cpu_is_omap34xx() || cpu_is_omap44xx())
-		return gpio & 0x1f;
-	return gpio & 0x0f;
-}
-
-static inline int gpio_valid(int gpio)
-{
-	if (gpio < 0)
-		return -1;
-	if (cpu_class_is_omap1() && OMAP_GPIO_IS_MPUIO(gpio)) {
-		if (gpio >= OMAP_MAX_GPIO_LINES + 16)
-			return -1;
-		return 0;
-	}
-	if (cpu_is_omap15xx() && gpio < 16)
-		return 0;
-	if ((cpu_is_omap16xx()) && gpio < 64)
-		return 0;
-	if (cpu_is_omap7xx() && gpio < 192)
-		return 0;
-	if (cpu_is_omap2420() && gpio < 128)
-		return 0;
-	if (cpu_is_omap2430() && gpio < 160)
-		return 0;
-	if ((cpu_is_omap34xx() || cpu_is_omap44xx()) && gpio < 192)
-		return 0;
-	return -1;
-}
-
-static int check_gpio(int gpio)
-{
-	if (unlikely(gpio_valid(gpio) < 0)) {
-		printk(KERN_ERR "omap-gpio: invalid GPIO %d\n", gpio);
-		dump_stack();
-		return -1;
-	}
-	return 0;
-}
-
-static void _set_gpio_direction(struct gpio_bank *bank, int gpio, int is_input)
-{
-	void __iomem *reg = bank->base;
-	u32 l;
-
-	switch (bank->method) {
-#ifdef CONFIG_ARCH_OMAP1
-	case METHOD_MPUIO:
-		reg += OMAP_MPUIO_IO_CNTL / bank->stride;
-		break;
-#endif
-#ifdef CONFIG_ARCH_OMAP15XX
-	case METHOD_GPIO_1510:
-		reg += OMAP1510_GPIO_DIR_CONTROL;
-		break;
-#endif
-#ifdef CONFIG_ARCH_OMAP16XX
-	case METHOD_GPIO_1610:
-		reg += OMAP1610_GPIO_DIRECTION;
-		break;
-#endif
-#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
-	case METHOD_GPIO_7XX:
-		reg += OMAP7XX_GPIO_DIR_CONTROL;
-		break;
-#endif
-#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
-	case METHOD_GPIO_24XX:
-		reg += OMAP24XX_GPIO_OE;
-		break;
-#endif
-#if defined(CONFIG_ARCH_OMAP4)
-	case METHOD_GPIO_44XX:
-		reg += OMAP4_GPIO_OE;
-		break;
-#endif
-	default:
-		WARN_ON(1);
-		return;
-	}
-	l = __raw_readl(reg);
-	if (is_input)
-		l |= 1 << gpio;
-	else
-		l &= ~(1 << gpio);
-	__raw_writel(l, reg);
-}
-
-static void _set_gpio_dataout(struct gpio_bank *bank, int gpio, int enable)
-{
-	void __iomem *reg = bank->base;
-	u32 l = 0;
-
-	switch (bank->method) {
-#ifdef CONFIG_ARCH_OMAP1
-	case METHOD_MPUIO:
-		reg += OMAP_MPUIO_OUTPUT / bank->stride;
-		l = __raw_readl(reg);
-		if (enable)
-			l |= 1 << gpio;
-		else
-			l &= ~(1 << gpio);
-		break;
-#endif
-#ifdef CONFIG_ARCH_OMAP15XX
-	case METHOD_GPIO_1510:
-		reg += OMAP1510_GPIO_DATA_OUTPUT;
-		l = __raw_readl(reg);
-		if (enable)
-			l |= 1 << gpio;
-		else
-			l &= ~(1 << gpio);
-		break;
-#endif
-#ifdef CONFIG_ARCH_OMAP16XX
-	case METHOD_GPIO_1610:
-		if (enable)
-			reg += OMAP1610_GPIO_SET_DATAOUT;
-		else
-			reg += OMAP1610_GPIO_CLEAR_DATAOUT;
-		l = 1 << gpio;
-		break;
-#endif
-#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
-	case METHOD_GPIO_7XX:
-		reg += OMAP7XX_GPIO_DATA_OUTPUT;
-		l = __raw_readl(reg);
-		if (enable)
-			l |= 1 << gpio;
-		else
-			l &= ~(1 << gpio);
-		break;
-#endif
-#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
-	case METHOD_GPIO_24XX:
-		if (enable)
-			reg += OMAP24XX_GPIO_SETDATAOUT;
-		else
-			reg += OMAP24XX_GPIO_CLEARDATAOUT;
-		l = 1 << gpio;
-		break;
-#endif
-#ifdef CONFIG_ARCH_OMAP4
-	case METHOD_GPIO_44XX:
-		if (enable)
-			reg += OMAP4_GPIO_SETDATAOUT;
-		else
-			reg += OMAP4_GPIO_CLEARDATAOUT;
-		l = 1 << gpio;
-		break;
-#endif
-	default:
-		WARN_ON(1);
-		return;
-	}
-	__raw_writel(l, reg);
-}
-
-static int _get_gpio_datain(struct gpio_bank *bank, int gpio)
-{
-	void __iomem *reg;
-
-	if (check_gpio(gpio) < 0)
-		return -EINVAL;
-	reg = bank->base;
-	switch (bank->method) {
-#ifdef CONFIG_ARCH_OMAP1
-	case METHOD_MPUIO:
-		reg += OMAP_MPUIO_INPUT_LATCH / bank->stride;
-		break;
-#endif
-#ifdef CONFIG_ARCH_OMAP15XX
-	case METHOD_GPIO_1510:
-		reg += OMAP1510_GPIO_DATA_INPUT;
-		break;
-#endif
-#ifdef CONFIG_ARCH_OMAP16XX
-	case METHOD_GPIO_1610:
-		reg += OMAP1610_GPIO_DATAIN;
-		break;
-#endif
-#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
-	case METHOD_GPIO_7XX:
-		reg += OMAP7XX_GPIO_DATA_INPUT;
-		break;
-#endif
-#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
-	case METHOD_GPIO_24XX:
-		reg += OMAP24XX_GPIO_DATAIN;
-		break;
-#endif
-#ifdef CONFIG_ARCH_OMAP4
-	case METHOD_GPIO_44XX:
-		reg += OMAP4_GPIO_DATAIN;
-		break;
-#endif
-	default:
-		return -EINVAL;
-	}
-	return (__raw_readl(reg)
-			& (1 << get_gpio_index(gpio))) != 0;
-}
-
-static int _get_gpio_dataout(struct gpio_bank *bank, int gpio)
-{
-	void __iomem *reg;
-
-	if (check_gpio(gpio) < 0)
-		return -EINVAL;
-	reg = bank->base;
-
-	switch (bank->method) {
-#ifdef CONFIG_ARCH_OMAP1
-	case METHOD_MPUIO:
-		reg += OMAP_MPUIO_OUTPUT / bank->stride;
-		break;
-#endif
-#ifdef CONFIG_ARCH_OMAP15XX
-	case METHOD_GPIO_1510:
-		reg += OMAP1510_GPIO_DATA_OUTPUT;
-		break;
-#endif
-#ifdef CONFIG_ARCH_OMAP16XX
-	case METHOD_GPIO_1610:
-		reg += OMAP1610_GPIO_DATAOUT;
-		break;
-#endif
-#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
-	case METHOD_GPIO_7XX:
-		reg += OMAP7XX_GPIO_DATA_OUTPUT;
-		break;
-#endif
-#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
-	case METHOD_GPIO_24XX:
-		reg += OMAP24XX_GPIO_DATAOUT;
-		break;
-#endif
-#ifdef CONFIG_ARCH_OMAP4
-	case METHOD_GPIO_44XX:
-		reg += OMAP4_GPIO_DATAOUT;
-		break;
-#endif
-	default:
-		return -EINVAL;
-	}
-
-	return (__raw_readl(reg) & (1 << get_gpio_index(gpio))) != 0;
-}
-
-#define MOD_REG_BIT(reg, bit_mask, set)	\
-do {	\
-	int l = __raw_readl(base + reg); \
-	if (set) l |= bit_mask; \
-	else l &= ~bit_mask; \
-	__raw_writel(l, base + reg); \
-} while(0)
-
-/**
- * _set_gpio_debounce - low level gpio debounce time
- * @bank: the gpio bank we're acting upon
- * @gpio: the gpio number on this @gpio
- * @debounce: debounce time to use
- *
- * OMAP's debounce time is in 31us steps so we need
- * to convert and round up to the closest unit.
- */
-static void _set_gpio_debounce(struct gpio_bank *bank, unsigned gpio,
-		unsigned debounce)
-{
-	void __iomem		*reg = bank->base;
-	u32			val;
-	u32			l;
-
-	if (!bank->dbck_flag)
-		return;
-
-	if (debounce < 32)
-		debounce = 0x01;
-	else if (debounce > 7936)
-		debounce = 0xff;
-	else
-		debounce = (debounce / 0x1f) - 1;
-
-	l = 1 << get_gpio_index(gpio);
-
-	if (bank->method == METHOD_GPIO_44XX)
-		reg += OMAP4_GPIO_DEBOUNCINGTIME;
-	else
-		reg += OMAP24XX_GPIO_DEBOUNCE_VAL;
-
-	__raw_writel(debounce, reg);
-
-	reg = bank->base;
-	if (bank->method == METHOD_GPIO_44XX)
-		reg += OMAP4_GPIO_DEBOUNCENABLE;
-	else
-		reg += OMAP24XX_GPIO_DEBOUNCE_EN;
-
-	val = __raw_readl(reg);
-
-	if (debounce) {
-		val |= l;
-		clk_enable(bank->dbck);
-	} else {
-		val &= ~l;
-		clk_disable(bank->dbck);
-	}
-	bank->dbck_enable_mask = val;
-
-	__raw_writel(val, reg);
-}
-
-#ifdef CONFIG_ARCH_OMAP2PLUS
-static inline void set_24xx_gpio_triggering(struct gpio_bank *bank, int gpio,
-						int trigger)
-{
-	void __iomem *base = bank->base;
-	u32 gpio_bit = 1 << gpio;
-	u32 val;
-
-	if (cpu_is_omap44xx()) {
-		MOD_REG_BIT(OMAP4_GPIO_LEVELDETECT0, gpio_bit,
-			trigger & IRQ_TYPE_LEVEL_LOW);
-		MOD_REG_BIT(OMAP4_GPIO_LEVELDETECT1, gpio_bit,
-			trigger & IRQ_TYPE_LEVEL_HIGH);
-		MOD_REG_BIT(OMAP4_GPIO_RISINGDETECT, gpio_bit,
-			trigger & IRQ_TYPE_EDGE_RISING);
-		MOD_REG_BIT(OMAP4_GPIO_FALLINGDETECT, gpio_bit,
-			trigger & IRQ_TYPE_EDGE_FALLING);
-	} else {
-		MOD_REG_BIT(OMAP24XX_GPIO_LEVELDETECT0, gpio_bit,
-			trigger & IRQ_TYPE_LEVEL_LOW);
-		MOD_REG_BIT(OMAP24XX_GPIO_LEVELDETECT1, gpio_bit,
-			trigger & IRQ_TYPE_LEVEL_HIGH);
-		MOD_REG_BIT(OMAP24XX_GPIO_RISINGDETECT, gpio_bit,
-			trigger & IRQ_TYPE_EDGE_RISING);
-		MOD_REG_BIT(OMAP24XX_GPIO_FALLINGDETECT, gpio_bit,
-			trigger & IRQ_TYPE_EDGE_FALLING);
-	}
-	if (likely(!(bank->non_wakeup_gpios & gpio_bit))) {
-		if (cpu_is_omap44xx()) {
-			if (trigger != 0)
-				__raw_writel(1 << gpio, bank->base+
-						OMAP4_GPIO_IRQWAKEN0);
-			else {
-				val = __raw_readl(bank->base +
-							OMAP4_GPIO_IRQWAKEN0);
-				__raw_writel(val & (~(1 << gpio)), bank->base +
-							 OMAP4_GPIO_IRQWAKEN0);
-			}
-		} else {
-			/*
-			 * GPIO wakeup request can only be generated on edge
-			 * transitions
-			 */
-			if (trigger & IRQ_TYPE_EDGE_BOTH)
-				__raw_writel(1 << gpio, bank->base
-					+ OMAP24XX_GPIO_SETWKUENA);
-			else
-				__raw_writel(1 << gpio, bank->base
-					+ OMAP24XX_GPIO_CLEARWKUENA);
-		}
-	}
-	/* This part needs to be executed always for OMAP34xx */
-	if (cpu_is_omap34xx() || (bank->non_wakeup_gpios & gpio_bit)) {
-		/*
-		 * Log the edge gpio and manually trigger the IRQ
-		 * after resume if the input level changes
-		 * to avoid irq lost during PER RET/OFF mode
-		 * Applies for omap2 non-wakeup gpio and all omap3 gpios
-		 */
-		if (trigger & IRQ_TYPE_EDGE_BOTH)
-			bank->enabled_non_wakeup_gpios |= gpio_bit;
-		else
-			bank->enabled_non_wakeup_gpios &= ~gpio_bit;
-	}
-
-	if (cpu_is_omap44xx()) {
-		bank->level_mask =
-			__raw_readl(bank->base + OMAP4_GPIO_LEVELDETECT0) |
-			__raw_readl(bank->base + OMAP4_GPIO_LEVELDETECT1);
-	} else {
-		bank->level_mask =
-			__raw_readl(bank->base + OMAP24XX_GPIO_LEVELDETECT0) |
-			__raw_readl(bank->base + OMAP24XX_GPIO_LEVELDETECT1);
-	}
-}
-#endif
-
-#ifdef CONFIG_ARCH_OMAP1
-/*
- * This only applies to chips that can't do both rising and falling edge
- * detection at once.  For all other chips, this function is a noop.
- */
-static void _toggle_gpio_edge_triggering(struct gpio_bank *bank, int gpio)
-{
-	void __iomem *reg = bank->base;
-	u32 l = 0;
-
-	switch (bank->method) {
-	case METHOD_MPUIO:
-		reg += OMAP_MPUIO_GPIO_INT_EDGE / bank->stride;
-		break;
-#ifdef CONFIG_ARCH_OMAP15XX
-	case METHOD_GPIO_1510:
-		reg += OMAP1510_GPIO_INT_CONTROL;
-		break;
-#endif
-#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
-	case METHOD_GPIO_7XX:
-		reg += OMAP7XX_GPIO_INT_CONTROL;
-		break;
-#endif
-	default:
-		return;
-	}
-
-	l = __raw_readl(reg);
-	if ((l >> gpio) & 1)
-		l &= ~(1 << gpio);
-	else
-		l |= 1 << gpio;
-
-	__raw_writel(l, reg);
-}
-#endif
-
-static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger)
-{
-	void __iomem *reg = bank->base;
-	u32 l = 0;
-
-	switch (bank->method) {
-#ifdef CONFIG_ARCH_OMAP1
-	case METHOD_MPUIO:
-		reg += OMAP_MPUIO_GPIO_INT_EDGE / bank->stride;
-		l = __raw_readl(reg);
-		if ((trigger & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH)
-			bank->toggle_mask |= 1 << gpio;
-		if (trigger & IRQ_TYPE_EDGE_RISING)
-			l |= 1 << gpio;
-		else if (trigger & IRQ_TYPE_EDGE_FALLING)
-			l &= ~(1 << gpio);
-		else
-			goto bad;
-		break;
-#endif
-#ifdef CONFIG_ARCH_OMAP15XX
-	case METHOD_GPIO_1510:
-		reg += OMAP1510_GPIO_INT_CONTROL;
-		l = __raw_readl(reg);
-		if ((trigger & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH)
-			bank->toggle_mask |= 1 << gpio;
-		if (trigger & IRQ_TYPE_EDGE_RISING)
-			l |= 1 << gpio;
-		else if (trigger & IRQ_TYPE_EDGE_FALLING)
-			l &= ~(1 << gpio);
-		else
-			goto bad;
-		break;
-#endif
-#ifdef CONFIG_ARCH_OMAP16XX
-	case METHOD_GPIO_1610:
-		if (gpio & 0x08)
-			reg += OMAP1610_GPIO_EDGE_CTRL2;
-		else
-			reg += OMAP1610_GPIO_EDGE_CTRL1;
-		gpio &= 0x07;
-		l = __raw_readl(reg);
-		l &= ~(3 << (gpio << 1));
-		if (trigger & IRQ_TYPE_EDGE_RISING)
-			l |= 2 << (gpio << 1);
-		if (trigger & IRQ_TYPE_EDGE_FALLING)
-			l |= 1 << (gpio << 1);
-		if (trigger)
-			/* Enable wake-up during idle for dynamic tick */
-			__raw_writel(1 << gpio, bank->base + OMAP1610_GPIO_SET_WAKEUPENA);
-		else
-			__raw_writel(1 << gpio, bank->base + OMAP1610_GPIO_CLEAR_WAKEUPENA);
-		break;
-#endif
-#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
-	case METHOD_GPIO_7XX:
-		reg += OMAP7XX_GPIO_INT_CONTROL;
-		l = __raw_readl(reg);
-		if ((trigger & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH)
-			bank->toggle_mask |= 1 << gpio;
-		if (trigger & IRQ_TYPE_EDGE_RISING)
-			l |= 1 << gpio;
-		else if (trigger & IRQ_TYPE_EDGE_FALLING)
-			l &= ~(1 << gpio);
-		else
-			goto bad;
-		break;
-#endif
-#ifdef CONFIG_ARCH_OMAP2PLUS
-	case METHOD_GPIO_24XX:
-	case METHOD_GPIO_44XX:
-		set_24xx_gpio_triggering(bank, gpio, trigger);
-		return 0;
-#endif
-	default:
-		goto bad;
-	}
-	__raw_writel(l, reg);
-	return 0;
-bad:
-	return -EINVAL;
-}
-
-static int gpio_irq_type(struct irq_data *d, unsigned type)
-{
-	struct gpio_bank *bank;
-	unsigned gpio;
-	int retval;
-	unsigned long flags;
-
-	if (!cpu_class_is_omap2() && d->irq > IH_MPUIO_BASE)
-		gpio = OMAP_MPUIO(d->irq - IH_MPUIO_BASE);
-	else
-		gpio = d->irq - IH_GPIO_BASE;
-
-	if (check_gpio(gpio) < 0)
-		return -EINVAL;
-
-	if (type & ~IRQ_TYPE_SENSE_MASK)
-		return -EINVAL;
-
-	/* OMAP1 allows only only edge triggering */
-	if (!cpu_class_is_omap2()
-			&& (type & (IRQ_TYPE_LEVEL_LOW|IRQ_TYPE_LEVEL_HIGH)))
-		return -EINVAL;
-
-	bank = irq_data_get_irq_chip_data(d);
-	spin_lock_irqsave(&bank->lock, flags);
-	retval = _set_gpio_triggering(bank, get_gpio_index(gpio), type);
-	spin_unlock_irqrestore(&bank->lock, flags);
-
-	if (type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH))
-		__irq_set_handler_locked(d->irq, handle_level_irq);
-	else if (type & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING))
-		__irq_set_handler_locked(d->irq, handle_edge_irq);
-
-	return retval;
-}
-
-static void _clear_gpio_irqbank(struct gpio_bank *bank, int gpio_mask)
-{
-	void __iomem *reg = bank->base;
-
-	switch (bank->method) {
-#ifdef CONFIG_ARCH_OMAP1
-	case METHOD_MPUIO:
-		/* MPUIO irqstatus is reset by reading the status register,
-		 * so do nothing here */
-		return;
-#endif
-#ifdef CONFIG_ARCH_OMAP15XX
-	case METHOD_GPIO_1510:
-		reg += OMAP1510_GPIO_INT_STATUS;
-		break;
-#endif
-#ifdef CONFIG_ARCH_OMAP16XX
-	case METHOD_GPIO_1610:
-		reg += OMAP1610_GPIO_IRQSTATUS1;
-		break;
-#endif
-#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
-	case METHOD_GPIO_7XX:
-		reg += OMAP7XX_GPIO_INT_STATUS;
-		break;
-#endif
-#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
-	case METHOD_GPIO_24XX:
-		reg += OMAP24XX_GPIO_IRQSTATUS1;
-		break;
-#endif
-#if defined(CONFIG_ARCH_OMAP4)
-	case METHOD_GPIO_44XX:
-		reg += OMAP4_GPIO_IRQSTATUS0;
-		break;
-#endif
-	default:
-		WARN_ON(1);
-		return;
-	}
-	__raw_writel(gpio_mask, reg);
-
-	/* Workaround for clearing DSP GPIO interrupts to allow retention */
-	if (cpu_is_omap24xx() || cpu_is_omap34xx())
-		reg = bank->base + OMAP24XX_GPIO_IRQSTATUS2;
-	else if (cpu_is_omap44xx())
-		reg = bank->base + OMAP4_GPIO_IRQSTATUS1;
-
-	if (cpu_is_omap24xx() || cpu_is_omap34xx() || cpu_is_omap44xx()) {
-		__raw_writel(gpio_mask, reg);
-
-	/* Flush posted write for the irq status to avoid spurious interrupts */
-	__raw_readl(reg);
-	}
-}
-
-static inline void _clear_gpio_irqstatus(struct gpio_bank *bank, int gpio)
-{
-	_clear_gpio_irqbank(bank, 1 << get_gpio_index(gpio));
-}
-
-static u32 _get_gpio_irqbank_mask(struct gpio_bank *bank)
-{
-	void __iomem *reg = bank->base;
-	int inv = 0;
-	u32 l;
-	u32 mask;
-
-	switch (bank->method) {
-#ifdef CONFIG_ARCH_OMAP1
-	case METHOD_MPUIO:
-		reg += OMAP_MPUIO_GPIO_MASKIT / bank->stride;
-		mask = 0xffff;
-		inv = 1;
-		break;
-#endif
-#ifdef CONFIG_ARCH_OMAP15XX
-	case METHOD_GPIO_1510:
-		reg += OMAP1510_GPIO_INT_MASK;
-		mask = 0xffff;
-		inv = 1;
-		break;
-#endif
-#ifdef CONFIG_ARCH_OMAP16XX
-	case METHOD_GPIO_1610:
-		reg += OMAP1610_GPIO_IRQENABLE1;
-		mask = 0xffff;
-		break;
-#endif
-#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
-	case METHOD_GPIO_7XX:
-		reg += OMAP7XX_GPIO_INT_MASK;
-		mask = 0xffffffff;
-		inv = 1;
-		break;
-#endif
-#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
-	case METHOD_GPIO_24XX:
-		reg += OMAP24XX_GPIO_IRQENABLE1;
-		mask = 0xffffffff;
-		break;
-#endif
-#if defined(CONFIG_ARCH_OMAP4)
-	case METHOD_GPIO_44XX:
-		reg += OMAP4_GPIO_IRQSTATUSSET0;
-		mask = 0xffffffff;
-		break;
-#endif
-	default:
-		WARN_ON(1);
-		return 0;
-	}
-
-	l = __raw_readl(reg);
-	if (inv)
-		l = ~l;
-	l &= mask;
-	return l;
-}
-
-static void _enable_gpio_irqbank(struct gpio_bank *bank, int gpio_mask, int enable)
-{
-	void __iomem *reg = bank->base;
-	u32 l;
-
-	switch (bank->method) {
-#ifdef CONFIG_ARCH_OMAP1
-	case METHOD_MPUIO:
-		reg += OMAP_MPUIO_GPIO_MASKIT / bank->stride;
-		l = __raw_readl(reg);
-		if (enable)
-			l &= ~(gpio_mask);
-		else
-			l |= gpio_mask;
-		break;
-#endif
-#ifdef CONFIG_ARCH_OMAP15XX
-	case METHOD_GPIO_1510:
-		reg += OMAP1510_GPIO_INT_MASK;
-		l = __raw_readl(reg);
-		if (enable)
-			l &= ~(gpio_mask);
-		else
-			l |= gpio_mask;
-		break;
-#endif
-#ifdef CONFIG_ARCH_OMAP16XX
-	case METHOD_GPIO_1610:
-		if (enable)
-			reg += OMAP1610_GPIO_SET_IRQENABLE1;
-		else
-			reg += OMAP1610_GPIO_CLEAR_IRQENABLE1;
-		l = gpio_mask;
-		break;
-#endif
-#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
-	case METHOD_GPIO_7XX:
-		reg += OMAP7XX_GPIO_INT_MASK;
-		l = __raw_readl(reg);
-		if (enable)
-			l &= ~(gpio_mask);
-		else
-			l |= gpio_mask;
-		break;
-#endif
-#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
-	case METHOD_GPIO_24XX:
-		if (enable)
-			reg += OMAP24XX_GPIO_SETIRQENABLE1;
-		else
-			reg += OMAP24XX_GPIO_CLEARIRQENABLE1;
-		l = gpio_mask;
-		break;
-#endif
-#ifdef CONFIG_ARCH_OMAP4
-	case METHOD_GPIO_44XX:
-		if (enable)
-			reg += OMAP4_GPIO_IRQSTATUSSET0;
-		else
-			reg += OMAP4_GPIO_IRQSTATUSCLR0;
-		l = gpio_mask;
-		break;
-#endif
-	default:
-		WARN_ON(1);
-		return;
-	}
-	__raw_writel(l, reg);
-}
-
-static inline void _set_gpio_irqenable(struct gpio_bank *bank, int gpio, int enable)
-{
-	_enable_gpio_irqbank(bank, 1 << get_gpio_index(gpio), enable);
-}
-
-/*
- * Note that ENAWAKEUP needs to be enabled in GPIO_SYSCONFIG register.
- * 1510 does not seem to have a wake-up register. If JTAG is connected
- * to the target, system will wake up always on GPIO events. While
- * system is running all registered GPIO interrupts need to have wake-up
- * enabled. When system is suspended, only selected GPIO interrupts need
- * to have wake-up enabled.
- */
-static int _set_gpio_wakeup(struct gpio_bank *bank, int gpio, int enable)
-{
-	unsigned long uninitialized_var(flags);
-
-	switch (bank->method) {
-#ifdef CONFIG_ARCH_OMAP16XX
-	case METHOD_MPUIO:
-	case METHOD_GPIO_1610:
-		spin_lock_irqsave(&bank->lock, flags);
-		if (enable)
-			bank->suspend_wakeup |= (1 << gpio);
-		else
-			bank->suspend_wakeup &= ~(1 << gpio);
-		spin_unlock_irqrestore(&bank->lock, flags);
-		return 0;
-#endif
-#ifdef CONFIG_ARCH_OMAP2PLUS
-	case METHOD_GPIO_24XX:
-	case METHOD_GPIO_44XX:
-		if (bank->non_wakeup_gpios & (1 << gpio)) {
-			printk(KERN_ERR "Unable to modify wakeup on "
-					"non-wakeup GPIO%d\n",
-					(bank - gpio_bank) * 32 + gpio);
-			return -EINVAL;
-		}
-		spin_lock_irqsave(&bank->lock, flags);
-		if (enable)
-			bank->suspend_wakeup |= (1 << gpio);
-		else
-			bank->suspend_wakeup &= ~(1 << gpio);
-		spin_unlock_irqrestore(&bank->lock, flags);
-		return 0;
-#endif
-	default:
-		printk(KERN_ERR "Can't enable GPIO wakeup for method %i\n",
-		       bank->method);
-		return -EINVAL;
-	}
-}
-
-static void _reset_gpio(struct gpio_bank *bank, int gpio)
-{
-	_set_gpio_direction(bank, get_gpio_index(gpio), 1);
-	_set_gpio_irqenable(bank, gpio, 0);
-	_clear_gpio_irqstatus(bank, gpio);
-	_set_gpio_triggering(bank, get_gpio_index(gpio), IRQ_TYPE_NONE);
-}
-
-/* Use disable_irq_wake() and enable_irq_wake() functions from drivers */
-static int gpio_wake_enable(struct irq_data *d, unsigned int enable)
-{
-	unsigned int gpio = d->irq - IH_GPIO_BASE;
-	struct gpio_bank *bank;
-	int retval;
-
-	if (check_gpio(gpio) < 0)
-		return -ENODEV;
-	bank = irq_data_get_irq_chip_data(d);
-	retval = _set_gpio_wakeup(bank, get_gpio_index(gpio), enable);
-
-	return retval;
-}
-
-static int omap_gpio_request(struct gpio_chip *chip, unsigned offset)
-{
-	struct gpio_bank *bank = container_of(chip, struct gpio_bank, chip);
-	unsigned long flags;
-
-	spin_lock_irqsave(&bank->lock, flags);
-
-	/* Set trigger to none. You need to enable the desired trigger with
-	 * request_irq() or set_irq_type().
-	 */
-	_set_gpio_triggering(bank, offset, IRQ_TYPE_NONE);
-
-#ifdef CONFIG_ARCH_OMAP15XX
-	if (bank->method == METHOD_GPIO_1510) {
-		void __iomem *reg;
-
-		/* Claim the pin for MPU */
-		reg = bank->base + OMAP1510_GPIO_PIN_CONTROL;
-		__raw_writel(__raw_readl(reg) | (1 << offset), reg);
-	}
-#endif
-	if (!cpu_class_is_omap1()) {
-		if (!bank->mod_usage) {
-			void __iomem *reg = bank->base;
-			u32 ctrl;
-
-			if (cpu_is_omap24xx() || cpu_is_omap34xx())
-				reg += OMAP24XX_GPIO_CTRL;
-			else if (cpu_is_omap44xx())
-				reg += OMAP4_GPIO_CTRL;
-			ctrl = __raw_readl(reg);
-			/* Module is enabled, clocks are not gated */
-			ctrl &= 0xFFFFFFFE;
-			__raw_writel(ctrl, reg);
-		}
-		bank->mod_usage |= 1 << offset;
-	}
-	spin_unlock_irqrestore(&bank->lock, flags);
-
-	return 0;
-}
-
-static void omap_gpio_free(struct gpio_chip *chip, unsigned offset)
-{
-	struct gpio_bank *bank = container_of(chip, struct gpio_bank, chip);
-	unsigned long flags;
-
-	spin_lock_irqsave(&bank->lock, flags);
-#ifdef CONFIG_ARCH_OMAP16XX
-	if (bank->method == METHOD_GPIO_1610) {
-		/* Disable wake-up during idle for dynamic tick */
-		void __iomem *reg = bank->base + OMAP1610_GPIO_CLEAR_WAKEUPENA;
-		__raw_writel(1 << offset, reg);
-	}
-#endif
-#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
-	if (bank->method == METHOD_GPIO_24XX) {
-		/* Disable wake-up during idle for dynamic tick */
-		void __iomem *reg = bank->base + OMAP24XX_GPIO_CLEARWKUENA;
-		__raw_writel(1 << offset, reg);
-	}
-#endif
-#ifdef CONFIG_ARCH_OMAP4
-	if (bank->method == METHOD_GPIO_44XX) {
-		/* Disable wake-up during idle for dynamic tick */
-		void __iomem *reg = bank->base + OMAP4_GPIO_IRQWAKEN0;
-		__raw_writel(1 << offset, reg);
-	}
-#endif
-	if (!cpu_class_is_omap1()) {
-		bank->mod_usage &= ~(1 << offset);
-		if (!bank->mod_usage) {
-			void __iomem *reg = bank->base;
-			u32 ctrl;
-
-			if (cpu_is_omap24xx() || cpu_is_omap34xx())
-				reg += OMAP24XX_GPIO_CTRL;
-			else if (cpu_is_omap44xx())
-				reg += OMAP4_GPIO_CTRL;
-			ctrl = __raw_readl(reg);
-			/* Module is disabled, clocks are gated */
-			ctrl |= 1;
-			__raw_writel(ctrl, reg);
-		}
-	}
-	_reset_gpio(bank, bank->chip.base + offset);
-	spin_unlock_irqrestore(&bank->lock, flags);
-}
-
-/*
- * We need to unmask the GPIO bank interrupt as soon as possible to
- * avoid missing GPIO interrupts for other lines in the bank.
- * Then we need to mask-read-clear-unmask the triggered GPIO lines
- * in the bank to avoid missing nested interrupts for a GPIO line.
- * If we wait to unmask individual GPIO lines in the bank after the
- * line's interrupt handler has been run, we may miss some nested
- * interrupts.
- */
-static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
-{
-	void __iomem *isr_reg = NULL;
-	u32 isr;
-	unsigned int gpio_irq, gpio_index;
-	struct gpio_bank *bank;
-	u32 retrigger = 0;
-	int unmasked = 0;
-	struct irq_chip *chip = irq_desc_get_chip(desc);
-
-	chained_irq_enter(chip, desc);
-
-	bank = irq_get_handler_data(irq);
-#ifdef CONFIG_ARCH_OMAP1
-	if (bank->method == METHOD_MPUIO)
-		isr_reg = bank->base +
-				OMAP_MPUIO_GPIO_INT / bank->stride;
-#endif
-#ifdef CONFIG_ARCH_OMAP15XX
-	if (bank->method == METHOD_GPIO_1510)
-		isr_reg = bank->base + OMAP1510_GPIO_INT_STATUS;
-#endif
-#if defined(CONFIG_ARCH_OMAP16XX)
-	if (bank->method == METHOD_GPIO_1610)
-		isr_reg = bank->base + OMAP1610_GPIO_IRQSTATUS1;
-#endif
-#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
-	if (bank->method == METHOD_GPIO_7XX)
-		isr_reg = bank->base + OMAP7XX_GPIO_INT_STATUS;
-#endif
-#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
-	if (bank->method == METHOD_GPIO_24XX)
-		isr_reg = bank->base + OMAP24XX_GPIO_IRQSTATUS1;
-#endif
-#if defined(CONFIG_ARCH_OMAP4)
-	if (bank->method == METHOD_GPIO_44XX)
-		isr_reg = bank->base + OMAP4_GPIO_IRQSTATUS0;
-#endif
-
-	if (WARN_ON(!isr_reg))
-		goto exit;
-
-	while(1) {
-		u32 isr_saved, level_mask = 0;
-		u32 enabled;
-
-		enabled = _get_gpio_irqbank_mask(bank);
-		isr_saved = isr = __raw_readl(isr_reg) & enabled;
-
-		if (cpu_is_omap15xx() && (bank->method == METHOD_MPUIO))
-			isr &= 0x0000ffff;
-
-		if (cpu_class_is_omap2()) {
-			level_mask = bank->level_mask & enabled;
-		}
-
-		/* clear edge sensitive interrupts before handler(s) are
-		called so that we don't miss any interrupt occurred while
-		executing them */
-		_enable_gpio_irqbank(bank, isr_saved & ~level_mask, 0);
-		_clear_gpio_irqbank(bank, isr_saved & ~level_mask);
-		_enable_gpio_irqbank(bank, isr_saved & ~level_mask, 1);
-
-		/* if there is only edge sensitive GPIO pin interrupts
-		configured, we could unmask GPIO bank interrupt immediately */
-		if (!level_mask && !unmasked) {
-			unmasked = 1;
-			chained_irq_exit(chip, desc);
-		}
-
-		isr |= retrigger;
-		retrigger = 0;
-		if (!isr)
-			break;
-
-		gpio_irq = bank->virtual_irq_start;
-		for (; isr != 0; isr >>= 1, gpio_irq++) {
-			gpio_index = get_gpio_index(irq_to_gpio(gpio_irq));
-
-			if (!(isr & 1))
-				continue;
-
-#ifdef CONFIG_ARCH_OMAP1
-			/*
-			 * Some chips can't respond to both rising and falling
-			 * at the same time.  If this irq was requested with
-			 * both flags, we need to flip the ICR data for the IRQ
-			 * to respond to the IRQ for the opposite direction.
-			 * This will be indicated in the bank toggle_mask.
-			 */
-			if (bank->toggle_mask & (1 << gpio_index))
-				_toggle_gpio_edge_triggering(bank, gpio_index);
-#endif
-
-			generic_handle_irq(gpio_irq);
-		}
-	}
-	/* if bank has any level sensitive GPIO pin interrupt
-	configured, we must unmask the bank interrupt only after
-	handler(s) are executed in order to avoid spurious bank
-	interrupt */
-exit:
-	if (!unmasked)
-		chained_irq_exit(chip, desc);
-}
-
-static void gpio_irq_shutdown(struct irq_data *d)
-{
-	unsigned int gpio = d->irq - IH_GPIO_BASE;
-	struct gpio_bank *bank = irq_data_get_irq_chip_data(d);
-
-	_reset_gpio(bank, gpio);
-}
-
-static void gpio_ack_irq(struct irq_data *d)
-{
-	unsigned int gpio = d->irq - IH_GPIO_BASE;
-	struct gpio_bank *bank = irq_data_get_irq_chip_data(d);
-
-	_clear_gpio_irqstatus(bank, gpio);
-}
-
-static void gpio_mask_irq(struct irq_data *d)
-{
-	unsigned int gpio = d->irq - IH_GPIO_BASE;
-	struct gpio_bank *bank = irq_data_get_irq_chip_data(d);
-
-	_set_gpio_irqenable(bank, gpio, 0);
-	_set_gpio_triggering(bank, get_gpio_index(gpio), IRQ_TYPE_NONE);
-}
-
-static void gpio_unmask_irq(struct irq_data *d)
-{
-	unsigned int gpio = d->irq - IH_GPIO_BASE;
-	struct gpio_bank *bank = irq_data_get_irq_chip_data(d);
-	unsigned int irq_mask = 1 << get_gpio_index(gpio);
-	u32 trigger = irqd_get_trigger_type(d);
-
-	if (trigger)
-		_set_gpio_triggering(bank, get_gpio_index(gpio), trigger);
-
-	/* For level-triggered GPIOs, the clearing must be done after
-	 * the HW source is cleared, thus after the handler has run */
-	if (bank->level_mask & irq_mask) {
-		_set_gpio_irqenable(bank, gpio, 0);
-		_clear_gpio_irqstatus(bank, gpio);
-	}
-
-	_set_gpio_irqenable(bank, gpio, 1);
-}
-
-static struct irq_chip gpio_irq_chip = {
-	.name		= "GPIO",
-	.irq_shutdown	= gpio_irq_shutdown,
-	.irq_ack	= gpio_ack_irq,
-	.irq_mask	= gpio_mask_irq,
-	.irq_unmask	= gpio_unmask_irq,
-	.irq_set_type	= gpio_irq_type,
-	.irq_set_wake	= gpio_wake_enable,
-};
-
-/*---------------------------------------------------------------------*/
-
-#ifdef CONFIG_ARCH_OMAP1
-
-/* MPUIO uses the always-on 32k clock */
-
-static void mpuio_ack_irq(struct irq_data *d)
-{
-	/* The ISR is reset automatically, so do nothing here. */
-}
-
-static void mpuio_mask_irq(struct irq_data *d)
-{
-	unsigned int gpio = OMAP_MPUIO(d->irq - IH_MPUIO_BASE);
-	struct gpio_bank *bank = irq_data_get_irq_chip_data(d);
-
-	_set_gpio_irqenable(bank, gpio, 0);
-}
-
-static void mpuio_unmask_irq(struct irq_data *d)
-{
-	unsigned int gpio = OMAP_MPUIO(d->irq - IH_MPUIO_BASE);
-	struct gpio_bank *bank = irq_data_get_irq_chip_data(d);
-
-	_set_gpio_irqenable(bank, gpio, 1);
-}
-
-static struct irq_chip mpuio_irq_chip = {
-	.name		= "MPUIO",
-	.irq_ack	= mpuio_ack_irq,
-	.irq_mask	= mpuio_mask_irq,
-	.irq_unmask	= mpuio_unmask_irq,
-	.irq_set_type	= gpio_irq_type,
-#ifdef CONFIG_ARCH_OMAP16XX
-	/* REVISIT: assuming only 16xx supports MPUIO wake events */
-	.irq_set_wake	= gpio_wake_enable,
-#endif
-};
-
-
-#define bank_is_mpuio(bank)	((bank)->method == METHOD_MPUIO)
-
-
-#ifdef CONFIG_ARCH_OMAP16XX
-
-#include <linux/platform_device.h>
-
-static int omap_mpuio_suspend_noirq(struct device *dev)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct gpio_bank	*bank = platform_get_drvdata(pdev);
-	void __iomem		*mask_reg = bank->base +
-					OMAP_MPUIO_GPIO_MASKIT / bank->stride;
-	unsigned long		flags;
-
-	spin_lock_irqsave(&bank->lock, flags);
-	bank->saved_wakeup = __raw_readl(mask_reg);
-	__raw_writel(0xffff & ~bank->suspend_wakeup, mask_reg);
-	spin_unlock_irqrestore(&bank->lock, flags);
-
-	return 0;
-}
-
-static int omap_mpuio_resume_noirq(struct device *dev)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct gpio_bank	*bank = platform_get_drvdata(pdev);
-	void __iomem		*mask_reg = bank->base +
-					OMAP_MPUIO_GPIO_MASKIT / bank->stride;
-	unsigned long		flags;
-
-	spin_lock_irqsave(&bank->lock, flags);
-	__raw_writel(bank->saved_wakeup, mask_reg);
-	spin_unlock_irqrestore(&bank->lock, flags);
-
-	return 0;
-}
-
-static const struct dev_pm_ops omap_mpuio_dev_pm_ops = {
-	.suspend_noirq = omap_mpuio_suspend_noirq,
-	.resume_noirq = omap_mpuio_resume_noirq,
-};
-
-/* use platform_driver for this. */
-static struct platform_driver omap_mpuio_driver = {
-	.driver		= {
-		.name	= "mpuio",
-		.pm	= &omap_mpuio_dev_pm_ops,
-	},
-};
-
-static struct platform_device omap_mpuio_device = {
-	.name		= "mpuio",
-	.id		= -1,
-	.dev = {
-		.driver = &omap_mpuio_driver.driver,
-	}
-	/* could list the /proc/iomem resources */
-};
-
-static inline void mpuio_init(void)
-{
-	struct gpio_bank *bank = get_gpio_bank(OMAP_MPUIO(0));
-	platform_set_drvdata(&omap_mpuio_device, bank);
-
-	if (platform_driver_register(&omap_mpuio_driver) == 0)
-		(void) platform_device_register(&omap_mpuio_device);
-}
-
-#else
-static inline void mpuio_init(void) {}
-#endif	/* 16xx */
-
-#else
-
-extern struct irq_chip mpuio_irq_chip;
-
-#define bank_is_mpuio(bank)	0
-static inline void mpuio_init(void) {}
-
-#endif
-
-/*---------------------------------------------------------------------*/
-
-/* REVISIT these are stupid implementations!  replace by ones that
- * don't switch on METHOD_* and which mostly avoid spinlocks
- */
-
-static int gpio_input(struct gpio_chip *chip, unsigned offset)
-{
-	struct gpio_bank *bank;
-	unsigned long flags;
-
-	bank = container_of(chip, struct gpio_bank, chip);
-	spin_lock_irqsave(&bank->lock, flags);
-	_set_gpio_direction(bank, offset, 1);
-	spin_unlock_irqrestore(&bank->lock, flags);
-	return 0;
-}
-
-static int gpio_is_input(struct gpio_bank *bank, int mask)
-{
-	void __iomem *reg = bank->base;
-
-	switch (bank->method) {
-	case METHOD_MPUIO:
-		reg += OMAP_MPUIO_IO_CNTL / bank->stride;
-		break;
-	case METHOD_GPIO_1510:
-		reg += OMAP1510_GPIO_DIR_CONTROL;
-		break;
-	case METHOD_GPIO_1610:
-		reg += OMAP1610_GPIO_DIRECTION;
-		break;
-	case METHOD_GPIO_7XX:
-		reg += OMAP7XX_GPIO_DIR_CONTROL;
-		break;
-	case METHOD_GPIO_24XX:
-		reg += OMAP24XX_GPIO_OE;
-		break;
-	case METHOD_GPIO_44XX:
-		reg += OMAP4_GPIO_OE;
-		break;
-	default:
-		WARN_ONCE(1, "gpio_is_input: incorrect OMAP GPIO method");
-		return -EINVAL;
-	}
-	return __raw_readl(reg) & mask;
-}
-
-static int gpio_get(struct gpio_chip *chip, unsigned offset)
-{
-	struct gpio_bank *bank;
-	void __iomem *reg;
-	int gpio;
-	u32 mask;
-
-	gpio = chip->base + offset;
-	bank = get_gpio_bank(gpio);
-	reg = bank->base;
-	mask = 1 << get_gpio_index(gpio);
-
-	if (gpio_is_input(bank, mask))
-		return _get_gpio_datain(bank, gpio);
-	else
-		return _get_gpio_dataout(bank, gpio);
-}
-
-static int gpio_output(struct gpio_chip *chip, unsigned offset, int value)
-{
-	struct gpio_bank *bank;
-	unsigned long flags;
-
-	bank = container_of(chip, struct gpio_bank, chip);
-	spin_lock_irqsave(&bank->lock, flags);
-	_set_gpio_dataout(bank, offset, value);
-	_set_gpio_direction(bank, offset, 0);
-	spin_unlock_irqrestore(&bank->lock, flags);
-	return 0;
-}
-
-static int gpio_debounce(struct gpio_chip *chip, unsigned offset,
-		unsigned debounce)
-{
-	struct gpio_bank *bank;
-	unsigned long flags;
-
-	bank = container_of(chip, struct gpio_bank, chip);
-
-	if (!bank->dbck) {
-		bank->dbck = clk_get(bank->dev, "dbclk");
-		if (IS_ERR(bank->dbck))
-			dev_err(bank->dev, "Could not get gpio dbck\n");
-	}
-
-	spin_lock_irqsave(&bank->lock, flags);
-	_set_gpio_debounce(bank, offset, debounce);
-	spin_unlock_irqrestore(&bank->lock, flags);
-
-	return 0;
-}
-
-static void gpio_set(struct gpio_chip *chip, unsigned offset, int value)
-{
-	struct gpio_bank *bank;
-	unsigned long flags;
-
-	bank = container_of(chip, struct gpio_bank, chip);
-	spin_lock_irqsave(&bank->lock, flags);
-	_set_gpio_dataout(bank, offset, value);
-	spin_unlock_irqrestore(&bank->lock, flags);
-}
-
-static int gpio_2irq(struct gpio_chip *chip, unsigned offset)
-{
-	struct gpio_bank *bank;
-
-	bank = container_of(chip, struct gpio_bank, chip);
-	return bank->virtual_irq_start + offset;
-}
-
-/*---------------------------------------------------------------------*/
-
-static void __init omap_gpio_show_rev(struct gpio_bank *bank)
-{
-	u32 rev;
-
-	if (cpu_is_omap16xx() && !(bank->method != METHOD_MPUIO))
-		rev = __raw_readw(bank->base + OMAP1610_GPIO_REVISION);
-	else if (cpu_is_omap24xx() || cpu_is_omap34xx())
-		rev = __raw_readl(bank->base + OMAP24XX_GPIO_REVISION);
-	else if (cpu_is_omap44xx())
-		rev = __raw_readl(bank->base + OMAP4_GPIO_REVISION);
-	else
-		return;
-
-	printk(KERN_INFO "OMAP GPIO hardware version %d.%d\n",
-		(rev >> 4) & 0x0f, rev & 0x0f);
-}
-
-/* This lock class tells lockdep that GPIO irqs are in a different
- * category than their parents, so it won't report false recursion.
- */
-static struct lock_class_key gpio_lock_class;
-
-static inline int init_gpio_info(struct platform_device *pdev)
-{
-	/* TODO: Analyze removing gpio_bank_count usage from driver code */
-	gpio_bank = kzalloc(gpio_bank_count * sizeof(struct gpio_bank),
-				GFP_KERNEL);
-	if (!gpio_bank) {
-		dev_err(&pdev->dev, "Memory alloc failed for gpio_bank\n");
-		return -ENOMEM;
-	}
-	return 0;
-}
-
-/* TODO: Cleanup cpu_is_* checks */
-static void omap_gpio_mod_init(struct gpio_bank *bank, int id)
-{
-	if (cpu_class_is_omap2()) {
-		if (cpu_is_omap44xx()) {
-			__raw_writel(0xffffffff, bank->base +
-					OMAP4_GPIO_IRQSTATUSCLR0);
-			__raw_writel(0x00000000, bank->base +
-					 OMAP4_GPIO_DEBOUNCENABLE);
-			/* Initialize interface clk ungated, module enabled */
-			__raw_writel(0, bank->base + OMAP4_GPIO_CTRL);
-		} else if (cpu_is_omap34xx()) {
-			__raw_writel(0x00000000, bank->base +
-					OMAP24XX_GPIO_IRQENABLE1);
-			__raw_writel(0xffffffff, bank->base +
-					OMAP24XX_GPIO_IRQSTATUS1);
-			__raw_writel(0x00000000, bank->base +
-					OMAP24XX_GPIO_DEBOUNCE_EN);
-
-			/* Initialize interface clk ungated, module enabled */
-			__raw_writel(0, bank->base + OMAP24XX_GPIO_CTRL);
-		} else if (cpu_is_omap24xx()) {
-			static const u32 non_wakeup_gpios[] = {
-				0xe203ffc0, 0x08700040
-			};
-			if (id < ARRAY_SIZE(non_wakeup_gpios))
-				bank->non_wakeup_gpios = non_wakeup_gpios[id];
-		}
-	} else if (cpu_class_is_omap1()) {
-		if (bank_is_mpuio(bank))
-			__raw_writew(0xffff, bank->base +
-				OMAP_MPUIO_GPIO_MASKIT / bank->stride);
-		if (cpu_is_omap15xx() && bank->method == METHOD_GPIO_1510) {
-			__raw_writew(0xffff, bank->base
-						+ OMAP1510_GPIO_INT_MASK);
-			__raw_writew(0x0000, bank->base
-						+ OMAP1510_GPIO_INT_STATUS);
-		}
-		if (cpu_is_omap16xx() && bank->method == METHOD_GPIO_1610) {
-			__raw_writew(0x0000, bank->base
-						+ OMAP1610_GPIO_IRQENABLE1);
-			__raw_writew(0xffff, bank->base
-						+ OMAP1610_GPIO_IRQSTATUS1);
-			__raw_writew(0x0014, bank->base
-						+ OMAP1610_GPIO_SYSCONFIG);
-
-			/*
-			 * Enable system clock for GPIO module.
-			 * The CAM_CLK_CTRL *is* really the right place.
-			 */
-			omap_writel(omap_readl(ULPD_CAM_CLK_CTRL) | 0x04,
-						ULPD_CAM_CLK_CTRL);
-		}
-		if (cpu_is_omap7xx() && bank->method == METHOD_GPIO_7XX) {
-			__raw_writel(0xffffffff, bank->base
-						+ OMAP7XX_GPIO_INT_MASK);
-			__raw_writel(0x00000000, bank->base
-						+ OMAP7XX_GPIO_INT_STATUS);
-		}
-	}
-}
-
-static void __init omap_gpio_chip_init(struct gpio_bank *bank)
-{
-	int j;
-	static int gpio;
-
-	bank->mod_usage = 0;
-	/*
-	 * REVISIT eventually switch from OMAP-specific gpio structs
-	 * over to the generic ones
-	 */
-	bank->chip.request = omap_gpio_request;
-	bank->chip.free = omap_gpio_free;
-	bank->chip.direction_input = gpio_input;
-	bank->chip.get = gpio_get;
-	bank->chip.direction_output = gpio_output;
-	bank->chip.set_debounce = gpio_debounce;
-	bank->chip.set = gpio_set;
-	bank->chip.to_irq = gpio_2irq;
-	if (bank_is_mpuio(bank)) {
-		bank->chip.label = "mpuio";
-#ifdef CONFIG_ARCH_OMAP16XX
-		bank->chip.dev = &omap_mpuio_device.dev;
-#endif
-		bank->chip.base = OMAP_MPUIO(0);
-	} else {
-		bank->chip.label = "gpio";
-		bank->chip.base = gpio;
-		gpio += bank_width;
-	}
-	bank->chip.ngpio = bank_width;
-
-	gpiochip_add(&bank->chip);
-
-	for (j = bank->virtual_irq_start;
-		     j < bank->virtual_irq_start + bank_width; j++) {
-		irq_set_lockdep_class(j, &gpio_lock_class);
-		irq_set_chip_data(j, bank);
-		if (bank_is_mpuio(bank))
-			irq_set_chip(j, &mpuio_irq_chip);
-		else
-			irq_set_chip(j, &gpio_irq_chip);
-		irq_set_handler(j, handle_simple_irq);
-		set_irq_flags(j, IRQF_VALID);
-	}
-	irq_set_chained_handler(bank->irq, gpio_irq_handler);
-	irq_set_handler_data(bank->irq, bank);
-}
-
-static int __devinit omap_gpio_probe(struct platform_device *pdev)
-{
-	static int gpio_init_done;
-	struct omap_gpio_platform_data *pdata;
-	struct resource *res;
-	int id;
-	struct gpio_bank *bank;
-
-	if (!pdev->dev.platform_data)
-		return -EINVAL;
-
-	pdata = pdev->dev.platform_data;
-
-	if (!gpio_init_done) {
-		int ret;
-
-		ret = init_gpio_info(pdev);
-		if (ret)
-			return ret;
-	}
-
-	id = pdev->id;
-	bank = &gpio_bank[id];
-
-	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	if (unlikely(!res)) {
-		dev_err(&pdev->dev, "GPIO Bank %i Invalid IRQ resource\n", id);
-		return -ENODEV;
-	}
-
-	bank->irq = res->start;
-	bank->virtual_irq_start = pdata->virtual_irq_start;
-	bank->method = pdata->bank_type;
-	bank->dev = &pdev->dev;
-	bank->dbck_flag = pdata->dbck_flag;
-	bank->stride = pdata->bank_stride;
-	bank_width = pdata->bank_width;
-
-	spin_lock_init(&bank->lock);
-
-	/* Static mapping, never released */
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (unlikely(!res)) {
-		dev_err(&pdev->dev, "GPIO Bank %i Invalid mem resource\n", id);
-		return -ENODEV;
-	}
-
-	bank->base = ioremap(res->start, resource_size(res));
-	if (!bank->base) {
-		dev_err(&pdev->dev, "Could not ioremap gpio bank%i\n", id);
-		return -ENOMEM;
-	}
-
-	pm_runtime_enable(bank->dev);
-	pm_runtime_get_sync(bank->dev);
-
-	omap_gpio_mod_init(bank, id);
-	omap_gpio_chip_init(bank);
-	omap_gpio_show_rev(bank);
-
-	if (!gpio_init_done)
-		gpio_init_done = 1;
-
-	return 0;
-}
-
-#if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP2PLUS)
-static int omap_gpio_suspend(void)
-{
-	int i;
-
-	if (!cpu_class_is_omap2() && !cpu_is_omap16xx())
-		return 0;
-
-	for (i = 0; i < gpio_bank_count; i++) {
-		struct gpio_bank *bank = &gpio_bank[i];
-		void __iomem *wake_status;
-		void __iomem *wake_clear;
-		void __iomem *wake_set;
-		unsigned long flags;
-
-		switch (bank->method) {
-#ifdef CONFIG_ARCH_OMAP16XX
-		case METHOD_GPIO_1610:
-			wake_status = bank->base + OMAP1610_GPIO_WAKEUPENABLE;
-			wake_clear = bank->base + OMAP1610_GPIO_CLEAR_WAKEUPENA;
-			wake_set = bank->base + OMAP1610_GPIO_SET_WAKEUPENA;
-			break;
-#endif
-#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
-		case METHOD_GPIO_24XX:
-			wake_status = bank->base + OMAP24XX_GPIO_WAKE_EN;
-			wake_clear = bank->base + OMAP24XX_GPIO_CLEARWKUENA;
-			wake_set = bank->base + OMAP24XX_GPIO_SETWKUENA;
-			break;
-#endif
-#ifdef CONFIG_ARCH_OMAP4
-		case METHOD_GPIO_44XX:
-			wake_status = bank->base + OMAP4_GPIO_IRQWAKEN0;
-			wake_clear = bank->base + OMAP4_GPIO_IRQWAKEN0;
-			wake_set = bank->base + OMAP4_GPIO_IRQWAKEN0;
-			break;
-#endif
-		default:
-			continue;
-		}
-
-		spin_lock_irqsave(&bank->lock, flags);
-		bank->saved_wakeup = __raw_readl(wake_status);
-		__raw_writel(0xffffffff, wake_clear);
-		__raw_writel(bank->suspend_wakeup, wake_set);
-		spin_unlock_irqrestore(&bank->lock, flags);
-	}
-
-	return 0;
-}
-
-static void omap_gpio_resume(void)
-{
-	int i;
-
-	if (!cpu_class_is_omap2() && !cpu_is_omap16xx())
-		return;
-
-	for (i = 0; i < gpio_bank_count; i++) {
-		struct gpio_bank *bank = &gpio_bank[i];
-		void __iomem *wake_clear;
-		void __iomem *wake_set;
-		unsigned long flags;
-
-		switch (bank->method) {
-#ifdef CONFIG_ARCH_OMAP16XX
-		case METHOD_GPIO_1610:
-			wake_clear = bank->base + OMAP1610_GPIO_CLEAR_WAKEUPENA;
-			wake_set = bank->base + OMAP1610_GPIO_SET_WAKEUPENA;
-			break;
-#endif
-#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
-		case METHOD_GPIO_24XX:
-			wake_clear = bank->base + OMAP24XX_GPIO_CLEARWKUENA;
-			wake_set = bank->base + OMAP24XX_GPIO_SETWKUENA;
-			break;
-#endif
-#ifdef CONFIG_ARCH_OMAP4
-		case METHOD_GPIO_44XX:
-			wake_clear = bank->base + OMAP4_GPIO_IRQWAKEN0;
-			wake_set = bank->base + OMAP4_GPIO_IRQWAKEN0;
-			break;
-#endif
-		default:
-			continue;
-		}
-
-		spin_lock_irqsave(&bank->lock, flags);
-		__raw_writel(0xffffffff, wake_clear);
-		__raw_writel(bank->saved_wakeup, wake_set);
-		spin_unlock_irqrestore(&bank->lock, flags);
-	}
-}
-
-static struct syscore_ops omap_gpio_syscore_ops = {
-	.suspend	= omap_gpio_suspend,
-	.resume		= omap_gpio_resume,
-};
-
-#endif
-
-#ifdef CONFIG_ARCH_OMAP2PLUS
-
-static int workaround_enabled;
-
-void omap2_gpio_prepare_for_idle(int off_mode)
-{
-	int i, c = 0;
-	int min = 0;
-
-	if (cpu_is_omap34xx())
-		min = 1;
-
-	for (i = min; i < gpio_bank_count; i++) {
-		struct gpio_bank *bank = &gpio_bank[i];
-		u32 l1 = 0, l2 = 0;
-		int j;
-
-		for (j = 0; j < hweight_long(bank->dbck_enable_mask); j++)
-			clk_disable(bank->dbck);
-
-		if (!off_mode)
-			continue;
-
-		/* If going to OFF, remove triggering for all
-		 * non-wakeup GPIOs.  Otherwise spurious IRQs will be
-		 * generated.  See OMAP2420 Errata item 1.101. */
-		if (!(bank->enabled_non_wakeup_gpios))
-			continue;
-
-		if (cpu_is_omap24xx() || cpu_is_omap34xx()) {
-			bank->saved_datain = __raw_readl(bank->base +
-					OMAP24XX_GPIO_DATAIN);
-			l1 = __raw_readl(bank->base +
-					OMAP24XX_GPIO_FALLINGDETECT);
-			l2 = __raw_readl(bank->base +
-					OMAP24XX_GPIO_RISINGDETECT);
-		}
-
-		if (cpu_is_omap44xx()) {
-			bank->saved_datain = __raw_readl(bank->base +
-						OMAP4_GPIO_DATAIN);
-			l1 = __raw_readl(bank->base +
-						OMAP4_GPIO_FALLINGDETECT);
-			l2 = __raw_readl(bank->base +
-						OMAP4_GPIO_RISINGDETECT);
-		}
-
-		bank->saved_fallingdetect = l1;
-		bank->saved_risingdetect = l2;
-		l1 &= ~bank->enabled_non_wakeup_gpios;
-		l2 &= ~bank->enabled_non_wakeup_gpios;
-
-		if (cpu_is_omap24xx() || cpu_is_omap34xx()) {
-			__raw_writel(l1, bank->base +
-					OMAP24XX_GPIO_FALLINGDETECT);
-			__raw_writel(l2, bank->base +
-					OMAP24XX_GPIO_RISINGDETECT);
-		}
-
-		if (cpu_is_omap44xx()) {
-			__raw_writel(l1, bank->base + OMAP4_GPIO_FALLINGDETECT);
-			__raw_writel(l2, bank->base + OMAP4_GPIO_RISINGDETECT);
-		}
-
-		c++;
-	}
-	if (!c) {
-		workaround_enabled = 0;
-		return;
-	}
-	workaround_enabled = 1;
-}
-
-void omap2_gpio_resume_after_idle(void)
-{
-	int i;
-	int min = 0;
-
-	if (cpu_is_omap34xx())
-		min = 1;
-	for (i = min; i < gpio_bank_count; i++) {
-		struct gpio_bank *bank = &gpio_bank[i];
-		u32 l = 0, gen, gen0, gen1;
-		int j;
-
-		for (j = 0; j < hweight_long(bank->dbck_enable_mask); j++)
-			clk_enable(bank->dbck);
-
-		if (!workaround_enabled)
-			continue;
-
-		if (!(bank->enabled_non_wakeup_gpios))
-			continue;
-
-		if (cpu_is_omap24xx() || cpu_is_omap34xx()) {
-			__raw_writel(bank->saved_fallingdetect,
-				 bank->base + OMAP24XX_GPIO_FALLINGDETECT);
-			__raw_writel(bank->saved_risingdetect,
-				 bank->base + OMAP24XX_GPIO_RISINGDETECT);
-			l = __raw_readl(bank->base + OMAP24XX_GPIO_DATAIN);
-		}
-
-		if (cpu_is_omap44xx()) {
-			__raw_writel(bank->saved_fallingdetect,
-				 bank->base + OMAP4_GPIO_FALLINGDETECT);
-			__raw_writel(bank->saved_risingdetect,
-				 bank->base + OMAP4_GPIO_RISINGDETECT);
-			l = __raw_readl(bank->base + OMAP4_GPIO_DATAIN);
-		}
-
-		/* Check if any of the non-wakeup interrupt GPIOs have changed
-		 * state.  If so, generate an IRQ by software.  This is
-		 * horribly racy, but it's the best we can do to work around
-		 * this silicon bug. */
-		l ^= bank->saved_datain;
-		l &= bank->enabled_non_wakeup_gpios;
-
-		/*
-		 * No need to generate IRQs for the rising edge for gpio IRQs
-		 * configured with falling edge only; and vice versa.
-		 */
-		gen0 = l & bank->saved_fallingdetect;
-		gen0 &= bank->saved_datain;
-
-		gen1 = l & bank->saved_risingdetect;
-		gen1 &= ~(bank->saved_datain);
-
-		/* FIXME: Consider GPIO IRQs with level detections properly! */
-		gen = l & (~(bank->saved_fallingdetect) &
-				~(bank->saved_risingdetect));
-		/* Consider all GPIO IRQs needed to be updated */
-		gen |= gen0 | gen1;
-
-		if (gen) {
-			u32 old0, old1;
-
-			if (cpu_is_omap24xx() || cpu_is_omap34xx()) {
-				old0 = __raw_readl(bank->base +
-					OMAP24XX_GPIO_LEVELDETECT0);
-				old1 = __raw_readl(bank->base +
-					OMAP24XX_GPIO_LEVELDETECT1);
-				__raw_writel(old0 | gen, bank->base +
-					OMAP24XX_GPIO_LEVELDETECT0);
-				__raw_writel(old1 | gen, bank->base +
-					OMAP24XX_GPIO_LEVELDETECT1);
-				__raw_writel(old0, bank->base +
-					OMAP24XX_GPIO_LEVELDETECT0);
-				__raw_writel(old1, bank->base +
-					OMAP24XX_GPIO_LEVELDETECT1);
-			}
-
-			if (cpu_is_omap44xx()) {
-				old0 = __raw_readl(bank->base +
-						OMAP4_GPIO_LEVELDETECT0);
-				old1 = __raw_readl(bank->base +
-						OMAP4_GPIO_LEVELDETECT1);
-				__raw_writel(old0 | l, bank->base +
-						OMAP4_GPIO_LEVELDETECT0);
-				__raw_writel(old1 | l, bank->base +
-						OMAP4_GPIO_LEVELDETECT1);
-				__raw_writel(old0, bank->base +
-						OMAP4_GPIO_LEVELDETECT0);
-				__raw_writel(old1, bank->base +
-						OMAP4_GPIO_LEVELDETECT1);
-			}
-		}
-	}
-
-}
-
-#endif
-
-#ifdef CONFIG_ARCH_OMAP3
-/* save the registers of bank 2-6 */
-void omap_gpio_save_context(void)
-{
-	int i;
-
-	/* saving banks from 2-6 only since GPIO1 is in WKUP */
-	for (i = 1; i < gpio_bank_count; i++) {
-		struct gpio_bank *bank = &gpio_bank[i];
-		gpio_context[i].irqenable1 =
-			__raw_readl(bank->base + OMAP24XX_GPIO_IRQENABLE1);
-		gpio_context[i].irqenable2 =
-			__raw_readl(bank->base + OMAP24XX_GPIO_IRQENABLE2);
-		gpio_context[i].wake_en =
-			__raw_readl(bank->base + OMAP24XX_GPIO_WAKE_EN);
-		gpio_context[i].ctrl =
-			__raw_readl(bank->base + OMAP24XX_GPIO_CTRL);
-		gpio_context[i].oe =
-			__raw_readl(bank->base + OMAP24XX_GPIO_OE);
-		gpio_context[i].leveldetect0 =
-			__raw_readl(bank->base + OMAP24XX_GPIO_LEVELDETECT0);
-		gpio_context[i].leveldetect1 =
-			__raw_readl(bank->base + OMAP24XX_GPIO_LEVELDETECT1);
-		gpio_context[i].risingdetect =
-			__raw_readl(bank->base + OMAP24XX_GPIO_RISINGDETECT);
-		gpio_context[i].fallingdetect =
-			__raw_readl(bank->base + OMAP24XX_GPIO_FALLINGDETECT);
-		gpio_context[i].dataout =
-			__raw_readl(bank->base + OMAP24XX_GPIO_DATAOUT);
-	}
-}
-
-/* restore the required registers of bank 2-6 */
-void omap_gpio_restore_context(void)
-{
-	int i;
-
-	for (i = 1; i < gpio_bank_count; i++) {
-		struct gpio_bank *bank = &gpio_bank[i];
-		__raw_writel(gpio_context[i].irqenable1,
-				bank->base + OMAP24XX_GPIO_IRQENABLE1);
-		__raw_writel(gpio_context[i].irqenable2,
-				bank->base + OMAP24XX_GPIO_IRQENABLE2);
-		__raw_writel(gpio_context[i].wake_en,
-				bank->base + OMAP24XX_GPIO_WAKE_EN);
-		__raw_writel(gpio_context[i].ctrl,
-				bank->base + OMAP24XX_GPIO_CTRL);
-		__raw_writel(gpio_context[i].oe,
-				bank->base + OMAP24XX_GPIO_OE);
-		__raw_writel(gpio_context[i].leveldetect0,
-				bank->base + OMAP24XX_GPIO_LEVELDETECT0);
-		__raw_writel(gpio_context[i].leveldetect1,
-				bank->base + OMAP24XX_GPIO_LEVELDETECT1);
-		__raw_writel(gpio_context[i].risingdetect,
-				bank->base + OMAP24XX_GPIO_RISINGDETECT);
-		__raw_writel(gpio_context[i].fallingdetect,
-				bank->base + OMAP24XX_GPIO_FALLINGDETECT);
-		__raw_writel(gpio_context[i].dataout,
-				bank->base + OMAP24XX_GPIO_DATAOUT);
-	}
-}
-#endif
-
-static struct platform_driver omap_gpio_driver = {
-	.probe		= omap_gpio_probe,
-	.driver		= {
-		.name	= "omap_gpio",
-	},
-};
-
-/*
- * gpio driver register needs to be done before
- * machine_init functions access gpio APIs.
- * Hence omap_gpio_drv_reg() is a postcore_initcall.
- */
-static int __init omap_gpio_drv_reg(void)
-{
-	return platform_driver_register(&omap_gpio_driver);
-}
-postcore_initcall(omap_gpio_drv_reg);
-
-static int __init omap_gpio_sysinit(void)
-{
-	mpuio_init();
-
-#if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP2PLUS)
-	if (cpu_is_omap16xx() || cpu_class_is_omap2())
-		register_syscore_ops(&omap_gpio_syscore_ops);
-#endif
-
-	return 0;
-}
-
-arch_initcall(omap_gpio_sysinit);
diff --git a/arch/arm/plat-omap/include/plat/gpio.h b/arch/arm/plat-omap/include/plat/gpio.h
index cac2e8ac6968..ec97e00cb581 100644
--- a/arch/arm/plat-omap/include/plat/gpio.h
+++ b/arch/arm/plat-omap/include/plat/gpio.h
@@ -52,6 +52,109 @@
 
 #define OMAP34XX_NR_GPIOS		6
 
+/*
+ * OMAP1510 GPIO registers
+ */
+#define OMAP1510_GPIO_DATA_INPUT	0x00
+#define OMAP1510_GPIO_DATA_OUTPUT	0x04
+#define OMAP1510_GPIO_DIR_CONTROL	0x08
+#define OMAP1510_GPIO_INT_CONTROL	0x0c
+#define OMAP1510_GPIO_INT_MASK		0x10
+#define OMAP1510_GPIO_INT_STATUS	0x14
+#define OMAP1510_GPIO_PIN_CONTROL	0x18
+
+#define OMAP1510_IH_GPIO_BASE		64
+
+/*
+ * OMAP1610 specific GPIO registers
+ */
+#define OMAP1610_GPIO_REVISION		0x0000
+#define OMAP1610_GPIO_SYSCONFIG		0x0010
+#define OMAP1610_GPIO_SYSSTATUS		0x0014
+#define OMAP1610_GPIO_IRQSTATUS1	0x0018
+#define OMAP1610_GPIO_IRQENABLE1	0x001c
+#define OMAP1610_GPIO_WAKEUPENABLE	0x0028
+#define OMAP1610_GPIO_DATAIN		0x002c
+#define OMAP1610_GPIO_DATAOUT		0x0030
+#define OMAP1610_GPIO_DIRECTION		0x0034
+#define OMAP1610_GPIO_EDGE_CTRL1	0x0038
+#define OMAP1610_GPIO_EDGE_CTRL2	0x003c
+#define OMAP1610_GPIO_CLEAR_IRQENABLE1	0x009c
+#define OMAP1610_GPIO_CLEAR_WAKEUPENA	0x00a8
+#define OMAP1610_GPIO_CLEAR_DATAOUT	0x00b0
+#define OMAP1610_GPIO_SET_IRQENABLE1	0x00dc
+#define OMAP1610_GPIO_SET_WAKEUPENA	0x00e8
+#define OMAP1610_GPIO_SET_DATAOUT	0x00f0
+
+/*
+ * OMAP7XX specific GPIO registers
+ */
+#define OMAP7XX_GPIO_DATA_INPUT		0x00
+#define OMAP7XX_GPIO_DATA_OUTPUT	0x04
+#define OMAP7XX_GPIO_DIR_CONTROL	0x08
+#define OMAP7XX_GPIO_INT_CONTROL	0x0c
+#define OMAP7XX_GPIO_INT_MASK		0x10
+#define OMAP7XX_GPIO_INT_STATUS		0x14
+
+/*
+ * omap2+ specific GPIO registers
+ */
+#define OMAP24XX_GPIO_REVISION		0x0000
+#define OMAP24XX_GPIO_IRQSTATUS1	0x0018
+#define OMAP24XX_GPIO_IRQSTATUS2	0x0028
+#define OMAP24XX_GPIO_IRQENABLE2	0x002c
+#define OMAP24XX_GPIO_IRQENABLE1	0x001c
+#define OMAP24XX_GPIO_WAKE_EN		0x0020
+#define OMAP24XX_GPIO_CTRL		0x0030
+#define OMAP24XX_GPIO_OE		0x0034
+#define OMAP24XX_GPIO_DATAIN		0x0038
+#define OMAP24XX_GPIO_DATAOUT		0x003c
+#define OMAP24XX_GPIO_LEVELDETECT0	0x0040
+#define OMAP24XX_GPIO_LEVELDETECT1	0x0044
+#define OMAP24XX_GPIO_RISINGDETECT	0x0048
+#define OMAP24XX_GPIO_FALLINGDETECT	0x004c
+#define OMAP24XX_GPIO_DEBOUNCE_EN	0x0050
+#define OMAP24XX_GPIO_DEBOUNCE_VAL	0x0054
+#define OMAP24XX_GPIO_CLEARIRQENABLE1	0x0060
+#define OMAP24XX_GPIO_SETIRQENABLE1	0x0064
+#define OMAP24XX_GPIO_CLEARWKUENA	0x0080
+#define OMAP24XX_GPIO_SETWKUENA		0x0084
+#define OMAP24XX_GPIO_CLEARDATAOUT	0x0090
+#define OMAP24XX_GPIO_SETDATAOUT	0x0094
+
+#define OMAP4_GPIO_REVISION		0x0000
+#define OMAP4_GPIO_EOI			0x0020
+#define OMAP4_GPIO_IRQSTATUSRAW0	0x0024
+#define OMAP4_GPIO_IRQSTATUSRAW1	0x0028
+#define OMAP4_GPIO_IRQSTATUS0		0x002c
+#define OMAP4_GPIO_IRQSTATUS1		0x0030
+#define OMAP4_GPIO_IRQSTATUSSET0	0x0034
+#define OMAP4_GPIO_IRQSTATUSSET1	0x0038
+#define OMAP4_GPIO_IRQSTATUSCLR0	0x003c
+#define OMAP4_GPIO_IRQSTATUSCLR1	0x0040
+#define OMAP4_GPIO_IRQWAKEN0		0x0044
+#define OMAP4_GPIO_IRQWAKEN1		0x0048
+#define OMAP4_GPIO_IRQENABLE1		0x011c
+#define OMAP4_GPIO_WAKE_EN		0x0120
+#define OMAP4_GPIO_IRQSTATUS2		0x0128
+#define OMAP4_GPIO_IRQENABLE2		0x012c
+#define OMAP4_GPIO_CTRL			0x0130
+#define OMAP4_GPIO_OE			0x0134
+#define OMAP4_GPIO_DATAIN		0x0138
+#define OMAP4_GPIO_DATAOUT		0x013c
+#define OMAP4_GPIO_LEVELDETECT0		0x0140
+#define OMAP4_GPIO_LEVELDETECT1		0x0144
+#define OMAP4_GPIO_RISINGDETECT		0x0148
+#define OMAP4_GPIO_FALLINGDETECT	0x014c
+#define OMAP4_GPIO_DEBOUNCENABLE	0x0150
+#define OMAP4_GPIO_DEBOUNCINGTIME	0x0154
+#define OMAP4_GPIO_CLEARIRQENABLE1	0x0160
+#define OMAP4_GPIO_SETIRQENABLE1	0x0164
+#define OMAP4_GPIO_CLEARWKUENA		0x0180
+#define OMAP4_GPIO_SETWKUENA		0x0184
+#define OMAP4_GPIO_CLEARDATAOUT		0x0190
+#define OMAP4_GPIO_SETDATAOUT		0x0194
+
 #define OMAP_MPUIO(nr)		(OMAP_MAX_GPIO_LINES + (nr))
 #define OMAP_GPIO_IS_MPUIO(nr)	((nr) >= OMAP_MAX_GPIO_LINES)