Merge branch 'depends/rmk/gpio' into next/fixes

This sorts out merge conflicts with the arm/gpio branch that
already got merged into mainline Linux.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

12 files changed, 104 insertions, 752 deletions

diff --git a/arch/arm/mach-davinci/Makefile b/arch/arm/mach-davinci/Makefile
index 0b87a1ca2bb..495e31306fc 100644
--- a/arch/arm/mach-davinci/Makefile
+++ b/arch/arm/mach-davinci/Makefile
@@ -5,7 +5,7 @@
 
 # Common objects
 obj-y                   := time.o clock.o serial.o io.o psc.o \
-                           gpio.o dma.o usb.o common.o sram.o aemif.o
+                           dma.o usb.o common.o sram.o aemif.o
 
 obj-$(CONFIG_DAVINCI_MUX)               += mux.o
 
@@ -17,7 +17,6 @@ obj-$(CONFIG_ARCH_DAVINCI_DM365)	+= dm365.o devices.o
 obj-$(CONFIG_ARCH_DAVINCI_DA830)        += da830.o devices-da8xx.o
 obj-$(CONFIG_ARCH_DAVINCI_DA850)        += da850.o devices-da8xx.o
 obj-$(CONFIG_ARCH_DAVINCI_TNETV107X)    += tnetv107x.o devices-tnetv107x.o
-obj-$(CONFIG_ARCH_DAVINCI_TNETV107X)    += gpio-tnetv107x.o
 
 obj-$(CONFIG_AINTC)                     += irq.o
 obj-$(CONFIG_CP_INTC)                   += cp_intc.o
diff --git a/arch/arm/mach-davinci/da830.c b/arch/arm/mach-davinci/da830.c
index 2ed2f822fc4..a6bf5dcaef1 100644
--- a/arch/arm/mach-davinci/da830.c
+++ b/arch/arm/mach-davinci/da830.c
@@ -8,6 +8,7 @@
  * is licensed "as is" without any warranty of any kind, whether express
  * or implied.
  */
+#include <linux/gpio.h>
 #include <linux/init.h>
 #include <linux/clk.h>
 
@@ -19,7 +20,7 @@
 #include <mach/common.h>
 #include <mach/time.h>
 #include <mach/da8xx.h>
-#include <mach/gpio.h>
+#include <mach/gpio-davinci.h>
 
 #include "clock.h"
 #include "mux.h"
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index 935dbed5c54..4aae01576aa 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -11,6 +11,7 @@
  * is licensed "as is" without any warranty of any kind, whether express
  * or implied.
  */
+#include <linux/gpio.h>
 #include <linux/init.h>
 #include <linux/clk.h>
 #include <linux/platform_device.h>
@@ -27,7 +28,7 @@
 #include <mach/da8xx.h>
 #include <mach/cpufreq.h>
 #include <mach/pm.h>
-#include <mach/gpio.h>
+#include <mach/gpio-davinci.h>
 
 #include "clock.h"
 #include "mux.h"
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index a3a94e9c937..c143f43addc 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -13,7 +13,6 @@
 #include <linux/serial_8250.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
-#include <linux/gpio.h>
 
 #include <linux/spi/spi.h>
 
@@ -30,6 +29,7 @@
 #include <mach/common.h>
 #include <mach/asp.h>
 #include <mach/spi.h>
+#include <mach/gpio-davinci.h>
 
 #include "clock.h"
 #include "mux.h"
diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index 4604e72d7d9..679e168dce3 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -17,7 +17,6 @@
 #include <linux/serial_8250.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
-#include <linux/gpio.h>
 #include <linux/spi/spi.h>
 
 #include <asm/mach/map.h>
@@ -34,7 +33,7 @@
 #include <mach/asp.h>
 #include <mach/keyscan.h>
 #include <mach/spi.h>
-
+#include <mach/gpio-davinci.h>
 
 #include "clock.h"
 #include "mux.h"
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index 4c82c271629..9a274665edc 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -12,7 +12,6 @@
 #include <linux/clk.h>
 #include <linux/serial_8250.h>
 #include <linux/platform_device.h>
-#include <linux/gpio.h>
 
 #include <asm/mach/map.h>
 
@@ -26,6 +25,7 @@
 #include <mach/serial.h>
 #include <mach/common.h>
 #include <mach/asp.h>
+#include <mach/gpio-davinci.h>
 
 #include "clock.h"
 #include "mux.h"
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index 1802e711a2b..03e5f4931b4 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -13,7 +13,6 @@
 #include <linux/clk.h>
 #include <linux/serial_8250.h>
 #include <linux/platform_device.h>
-#include <linux/gpio.h>
 
 #include <asm/mach/map.h>
 
@@ -27,6 +26,7 @@
 #include <mach/serial.h>
 #include <mach/common.h>
 #include <mach/asp.h>
+#include <mach/gpio-davinci.h>
 
 #include "clock.h"
 #include "mux.h"
diff --git a/arch/arm/mach-davinci/gpio-tnetv107x.c b/arch/arm/mach-davinci/gpio-tnetv107x.c
deleted file mode 100644
index 3fa3e2867e1..00000000000
--- a/arch/arm/mach-davinci/gpio-tnetv107x.c
+++ /dev/null
@@ -1,205 +0,0 @@
-/*
- * Texas Instruments TNETV107X GPIO Controller
- *
- * Copyright (C) 2010 Texas Instruments
- *
- * 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 version 2.
- *
- * This program is distributed "as is" WITHOUT ANY WARRANTY of any
- * kind, whether express or implied; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/gpio.h>
-
-#include <mach/common.h>
-#include <mach/tnetv107x.h>
-
-struct tnetv107x_gpio_regs {
-        u32     idver;
-        u32     data_in[3];
-        u32     data_out[3];
-        u32     direction[3];
-        u32     enable[3];
-};
-
-#define gpio_reg_index(gpio)    ((gpio) >> 5)
-#define gpio_reg_bit(gpio)      BIT((gpio) & 0x1f)
-
-#define gpio_reg_rmw(reg, mask, val)    \
-        __raw_writel((__raw_readl(reg) & ~(mask)) | (val), (reg))
-
-#define gpio_reg_set_bit(reg, gpio)     \
-        gpio_reg_rmw((reg) + gpio_reg_index(gpio), 0, gpio_reg_bit(gpio))
-
-#define gpio_reg_clear_bit(reg, gpio)   \
-        gpio_reg_rmw((reg) + gpio_reg_index(gpio), gpio_reg_bit(gpio), 0)
-
-#define gpio_reg_get_bit(reg, gpio)     \
-        (__raw_readl((reg) + gpio_reg_index(gpio)) & gpio_reg_bit(gpio))
-
-#define chip2controller(chip)           \
-        container_of(chip, struct davinci_gpio_controller, chip)
-
-#define TNETV107X_GPIO_CTLRS    DIV_ROUND_UP(TNETV107X_N_GPIO, 32)
-
-static struct davinci_gpio_controller chips[TNETV107X_GPIO_CTLRS];
-
-static int tnetv107x_gpio_request(struct gpio_chip *chip, unsigned offset)
-{
-        struct davinci_gpio_controller *ctlr = chip2controller(chip);
-        struct tnetv107x_gpio_regs __iomem *regs = ctlr->regs;
-        unsigned gpio = chip->base + offset;
-        unsigned long flags;
-
-        spin_lock_irqsave(&ctlr->lock, flags);
-
-        gpio_reg_set_bit(regs->enable, gpio);
-
-        spin_unlock_irqrestore(&ctlr->lock, flags);
-
-        return 0;
-}
-
-static void tnetv107x_gpio_free(struct gpio_chip *chip, unsigned offset)
-{
-        struct davinci_gpio_controller *ctlr = chip2controller(chip);
-        struct tnetv107x_gpio_regs __iomem *regs = ctlr->regs;
-        unsigned gpio = chip->base + offset;
-        unsigned long flags;
-
-        spin_lock_irqsave(&ctlr->lock, flags);
-
-        gpio_reg_clear_bit(regs->enable, gpio);
-
-        spin_unlock_irqrestore(&ctlr->lock, flags);
-}
-
-static int tnetv107x_gpio_dir_in(struct gpio_chip *chip, unsigned offset)
-{
-        struct davinci_gpio_controller *ctlr = chip2controller(chip);
-        struct tnetv107x_gpio_regs __iomem *regs = ctlr->regs;
-        unsigned gpio = chip->base + offset;
-        unsigned long flags;
-
-        spin_lock_irqsave(&ctlr->lock, flags);
-
-        gpio_reg_set_bit(regs->direction, gpio);
-
-        spin_unlock_irqrestore(&ctlr->lock, flags);
-
-        return 0;
-}
-
-static int tnetv107x_gpio_dir_out(struct gpio_chip *chip,
-                unsigned offset, int value)
-{
-        struct davinci_gpio_controller *ctlr = chip2controller(chip);
-        struct tnetv107x_gpio_regs __iomem *regs = ctlr->regs;
-        unsigned gpio = chip->base + offset;
-        unsigned long flags;
-
-        spin_lock_irqsave(&ctlr->lock, flags);
-
-        if (value)
-                gpio_reg_set_bit(regs->data_out, gpio);
-        else
-                gpio_reg_clear_bit(regs->data_out, gpio);
-
-        gpio_reg_clear_bit(regs->direction, gpio);
-
-        spin_unlock_irqrestore(&ctlr->lock, flags);
-
-        return 0;
-}
-
-static int tnetv107x_gpio_get(struct gpio_chip *chip, unsigned offset)
-{
-        struct davinci_gpio_controller *ctlr = chip2controller(chip);
-        struct tnetv107x_gpio_regs __iomem *regs = ctlr->regs;
-        unsigned gpio = chip->base + offset;
-        int ret;
-
-        ret = gpio_reg_get_bit(regs->data_in, gpio);
-
-        return ret ? 1 : 0;
-}
-
-static void tnetv107x_gpio_set(struct gpio_chip *chip,
-                unsigned offset, int value)
-{
-        struct davinci_gpio_controller *ctlr = chip2controller(chip);
-        struct tnetv107x_gpio_regs __iomem *regs = ctlr->regs;
-        unsigned gpio = chip->base + offset;
-        unsigned long flags;
-
-        spin_lock_irqsave(&ctlr->lock, flags);
-
-        if (value)
-                gpio_reg_set_bit(regs->data_out, gpio);
-        else
-                gpio_reg_clear_bit(regs->data_out, gpio);
-
-        spin_unlock_irqrestore(&ctlr->lock, flags);
-}
-
-static int __init tnetv107x_gpio_setup(void)
-{
-        int i, base;
-        unsigned ngpio;
-        struct davinci_soc_info *soc_info = &davinci_soc_info;
-        struct tnetv107x_gpio_regs *regs;
-        struct davinci_gpio_controller *ctlr;
-
-        if (soc_info->gpio_type != GPIO_TYPE_TNETV107X)
-                return 0;
-
-        ngpio = soc_info->gpio_num;
-        if (ngpio == 0) {
-                pr_err("GPIO setup:  how many GPIOs?\n");
-                return -EINVAL;
-        }
-
-        if (WARN_ON(TNETV107X_N_GPIO < ngpio))
-                ngpio = TNETV107X_N_GPIO;
-
-        regs = ioremap(soc_info->gpio_base, SZ_4K);
-        if (WARN_ON(!regs))
-                return -EINVAL;
-
-        for (i = 0, base = 0; base < ngpio; i++, base += 32) {
-                ctlr = &chips[i];
-
-                ctlr->chip.label        = "tnetv107x";
-                ctlr->chip.can_sleep    = 0;
-                ctlr->chip.base         = base;
-                ctlr->chip.ngpio        = ngpio - base;
-                if (ctlr->chip.ngpio > 32)
-                        ctlr->chip.ngpio = 32;
-
-                ctlr->chip.request              = tnetv107x_gpio_request;
-                ctlr->chip.free                 = tnetv107x_gpio_free;
-                ctlr->chip.direction_input      = tnetv107x_gpio_dir_in;
-                ctlr->chip.get                  = tnetv107x_gpio_get;
-                ctlr->chip.direction_output     = tnetv107x_gpio_dir_out;
-                ctlr->chip.set                  = tnetv107x_gpio_set;
-
-                spin_lock_init(&ctlr->lock);
-
-                ctlr->regs      = regs;
-                ctlr->set_data  = &regs->data_out[i];
-                ctlr->clr_data  = &regs->data_out[i];
-                ctlr->in_data   = &regs->data_in[i];
-
-                gpiochip_add(&ctlr->chip);
-        }
-
-        soc_info->gpio_ctlrs = chips;
-        soc_info->gpio_ctlrs_num = DIV_ROUND_UP(ngpio, 32);
-        return 0;
-}
-pure_initcall(tnetv107x_gpio_setup);
diff --git a/arch/arm/mach-davinci/gpio.c b/arch/arm/mach-davinci/gpio.c
deleted file mode 100644
index cafbe13a82a..00000000000
--- a/arch/arm/mach-davinci/gpio.c
+++ /dev/null
@@ -1,460 +0,0 @@
-/*
- * TI DaVinci GPIO Support
- *
- * Copyright (c) 2006-2007 David Brownell
- * Copyright (c) 2007, MontaVista Software, Inc. <source@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/errno.h>
-#include <linux/kernel.h>
-#include <linux/clk.h>
-#include <linux/err.h>
-#include <linux/io.h>
-
-#include <mach/gpio.h>
-
-#include <asm/mach/irq.h>
-
-struct davinci_gpio_regs {
-        u32     dir;
-        u32     out_data;
-        u32     set_data;
-        u32     clr_data;
-        u32     in_data;
-        u32     set_rising;
-        u32     clr_rising;
-        u32     set_falling;
-        u32     clr_falling;
-        u32     intstat;
-};
-
-#define chip2controller(chip)   \
-        container_of(chip, struct davinci_gpio_controller, chip)
-
-static struct davinci_gpio_controller chips[DIV_ROUND_UP(DAVINCI_N_GPIO, 32)];
-static void __iomem *gpio_base;
-
-static struct davinci_gpio_regs __iomem __init *gpio2regs(unsigned gpio)
-{
-        void __iomem *ptr;
-
-        if (gpio < 32 * 1)
-                ptr = gpio_base + 0x10;
-        else if (gpio < 32 * 2)
-                ptr = gpio_base + 0x38;
-        else if (gpio < 32 * 3)
-                ptr = gpio_base + 0x60;
-        else if (gpio < 32 * 4)
-                ptr = gpio_base + 0x88;
-        else if (gpio < 32 * 5)
-                ptr = gpio_base + 0xb0;
-        else
-                ptr = NULL;
-        return ptr;
-}
-
-static inline struct davinci_gpio_regs __iomem *irq2regs(int irq)
-{
-        struct davinci_gpio_regs __iomem *g;
-
-        g = (__force struct davinci_gpio_regs __iomem *)irq_get_chip_data(irq);
-
-        return g;
-}
-
-static int __init davinci_gpio_irq_setup(void);
-
-/*--------------------------------------------------------------------------*/
-
-/* board setup code *MUST* setup pinmux and enable the GPIO clock. */
-static inline int __davinci_direction(struct gpio_chip *chip,
-                        unsigned offset, bool out, int value)
-{
-        struct davinci_gpio_controller *d = chip2controller(chip);
-        struct davinci_gpio_regs __iomem *g = d->regs;
-        unsigned long flags;
-        u32 temp;
-        u32 mask = 1 << offset;
-
-        spin_lock_irqsave(&d->lock, flags);
-        temp = __raw_readl(&g->dir);
-        if (out) {
-                temp &= ~mask;
-                __raw_writel(mask, value ? &g->set_data : &g->clr_data);
-        } else {
-                temp |= mask;
-        }
-        __raw_writel(temp, &g->dir);
-        spin_unlock_irqrestore(&d->lock, flags);
-
-        return 0;
-}
-
-static int davinci_direction_in(struct gpio_chip *chip, unsigned offset)
-{
-        return __davinci_direction(chip, offset, false, 0);
-}
-
-static int
-davinci_direction_out(struct gpio_chip *chip, unsigned offset, int value)
-{
-        return __davinci_direction(chip, offset, true, value);
-}
-
-/*
- * Read the pin's value (works even if it's set up as output);
- * returns zero/nonzero.
- *
- * Note that changes are synched to the GPIO clock, so reading values back
- * right after you've set them may give old values.
- */
-static int davinci_gpio_get(struct gpio_chip *chip, unsigned offset)
-{
-        struct davinci_gpio_controller *d = chip2controller(chip);
-        struct davinci_gpio_regs __iomem *g = d->regs;
-
-        return (1 << offset) & __raw_readl(&g->in_data);
-}
-
-/*
- * Assuming the pin is muxed as a gpio output, set its output value.
- */
-static void
-davinci_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
-{
-        struct davinci_gpio_controller *d = chip2controller(chip);
-        struct davinci_gpio_regs __iomem *g = d->regs;
-
-        __raw_writel((1 << offset), value ? &g->set_data : &g->clr_data);
-}
-
-static int __init davinci_gpio_setup(void)
-{
-        int i, base;
-        unsigned ngpio;
-        struct davinci_soc_info *soc_info = &davinci_soc_info;
-        struct davinci_gpio_regs *regs;
-
-        if (soc_info->gpio_type != GPIO_TYPE_DAVINCI)
-                return 0;
-
-        /*
-         * The gpio banks conceptually expose a segmented bitmap,
-         * and "ngpio" is one more than the largest zero-based
-         * bit index that's valid.
-         */
-        ngpio = soc_info->gpio_num;
-        if (ngpio == 0) {
-                pr_err("GPIO setup:  how many GPIOs?\n");
-                return -EINVAL;
-        }
-
-        if (WARN_ON(DAVINCI_N_GPIO < ngpio))
-                ngpio = DAVINCI_N_GPIO;
-
-        gpio_base = ioremap(soc_info->gpio_base, SZ_4K);
-        if (WARN_ON(!gpio_base))
-                return -ENOMEM;
-
-        for (i = 0, base = 0; base < ngpio; i++, base += 32) {
-                chips[i].chip.label = "DaVinci";
-
-                chips[i].chip.direction_input = davinci_direction_in;
-                chips[i].chip.get = davinci_gpio_get;
-                chips[i].chip.direction_output = davinci_direction_out;
-                chips[i].chip.set = davinci_gpio_set;
-
-                chips[i].chip.base = base;
-                chips[i].chip.ngpio = ngpio - base;
-                if (chips[i].chip.ngpio > 32)
-                        chips[i].chip.ngpio = 32;
-
-                spin_lock_init(&chips[i].lock);
-
-                regs = gpio2regs(base);
-                chips[i].regs = regs;
-                chips[i].set_data = &regs->set_data;
-                chips[i].clr_data = &regs->clr_data;
-                chips[i].in_data = &regs->in_data;
-
-                gpiochip_add(&chips[i].chip);
-        }
-
-        soc_info->gpio_ctlrs = chips;
-        soc_info->gpio_ctlrs_num = DIV_ROUND_UP(ngpio, 32);
-
-        davinci_gpio_irq_setup();
-        return 0;
-}
-pure_initcall(davinci_gpio_setup);
-
-/*--------------------------------------------------------------------------*/
-/*
- * We expect irqs will normally be set up as input pins, but they can also be
- * used as output pins ... which is convenient for testing.
- *
- * NOTE:  The first few GPIOs also have direct INTC hookups in addition
- * to their GPIOBNK0 irq, with a bit less overhead.
- *
- * All those INTC hookups (direct, plus several IRQ banks) can also
- * serve as EDMA event triggers.
- */
-
-static void gpio_irq_disable(struct irq_data *d)
-{
-        struct davinci_gpio_regs __iomem *g = irq2regs(d->irq);
-        u32 mask = (u32) irq_data_get_irq_handler_data(d);
-
-        __raw_writel(mask, &g->clr_falling);
-        __raw_writel(mask, &g->clr_rising);
-}
-
-static void gpio_irq_enable(struct irq_data *d)
-{
-        struct davinci_gpio_regs __iomem *g = irq2regs(d->irq);
-        u32 mask = (u32) irq_data_get_irq_handler_data(d);
-        unsigned status = irqd_get_trigger_type(d);
-
-        status &= IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING;
-        if (!status)
-                status = IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING;
-
-        if (status & IRQ_TYPE_EDGE_FALLING)
-                __raw_writel(mask, &g->set_falling);
-        if (status & IRQ_TYPE_EDGE_RISING)
-                __raw_writel(mask, &g->set_rising);
-}
-
-static int gpio_irq_type(struct irq_data *d, unsigned trigger)
-{
-        struct davinci_gpio_regs __iomem *g = irq2regs(d->irq);
-        u32 mask = (u32) irq_data_get_irq_handler_data(d);
-
-        if (trigger & ~(IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING))
-                return -EINVAL;
-
-        return 0;
-}
-
-static struct irq_chip gpio_irqchip = {
-        .name           = "GPIO",
-        .irq_enable     = gpio_irq_enable,
-        .irq_disable    = gpio_irq_disable,
-        .irq_set_type   = gpio_irq_type,
-        .flags          = IRQCHIP_SET_TYPE_MASKED,
-};
-
-static void
-gpio_irq_handler(unsigned irq, struct irq_desc *desc)
-{
-        struct davinci_gpio_regs __iomem *g;
-        u32 mask = 0xffff;
-        struct davinci_gpio_controller *d;
-
-        d = (struct davinci_gpio_controller *)irq_desc_get_handler_data(desc);
-        g = (struct davinci_gpio_regs __iomem *)d->regs;
-
-        /* we only care about one bank */
-        if (irq & 1)
-                mask <<= 16;
-
-        /* temporarily mask (level sensitive) parent IRQ */
-        desc->irq_data.chip->irq_mask(&desc->irq_data);
-        desc->irq_data.chip->irq_ack(&desc->irq_data);
-        while (1) {
-                u32             status;
-                int             n;
-                int             res;
-
-                /* ack any irqs */
-                status = __raw_readl(&g->intstat) & mask;
-                if (!status)
-                        break;
-                __raw_writel(status, &g->intstat);
-
-                /* now demux them to the right lowlevel handler */
-                n = d->irq_base;
-                if (irq & 1) {
-                        n += 16;
-                        status >>= 16;
-                }
-
-                while (status) {
-                        res = ffs(status);
-                        n += res;
-                        generic_handle_irq(n - 1);
-                        status >>= res;
-                }
-        }
-        desc->irq_data.chip->irq_unmask(&desc->irq_data);
-        /* now it may re-trigger */
-}
-
-static int gpio_to_irq_banked(struct gpio_chip *chip, unsigned offset)
-{
-        struct davinci_gpio_controller *d = chip2controller(chip);
-
-        if (d->irq_base >= 0)
-                return d->irq_base + offset;
-        else
-                return -ENODEV;
-}
-
-static int gpio_to_irq_unbanked(struct gpio_chip *chip, unsigned offset)
-{
-        struct davinci_soc_info *soc_info = &davinci_soc_info;
-
-        /* NOTE:  we assume for now that only irqs in the first gpio_chip
-         * can provide direct-mapped IRQs to AINTC (up to 32 GPIOs).
-         */
-        if (offset < soc_info->gpio_unbanked)
-                return soc_info->gpio_irq + offset;
-        else
-                return -ENODEV;
-}
-
-static int gpio_irq_type_unbanked(struct irq_data *d, unsigned trigger)
-{
-        struct davinci_gpio_regs __iomem *g = irq2regs(d->irq);
-        u32 mask = (u32) irq_data_get_irq_handler_data(d);
-
-        if (trigger & ~(IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING))
-                return -EINVAL;
-
-        __raw_writel(mask, (trigger & IRQ_TYPE_EDGE_FALLING)
-                     ? &g->set_falling : &g->clr_falling);
-        __raw_writel(mask, (trigger & IRQ_TYPE_EDGE_RISING)
-                     ? &g->set_rising : &g->clr_rising);
-
-        return 0;
-}
-
-/*
- * NOTE:  for suspend/resume, probably best to make a platform_device with
- * suspend_late/resume_resume calls hooking into results of the set_wake()
- * calls ... so if no gpios are wakeup events the clock can be disabled,
- * with outputs left at previously set levels, and so that VDD3P3V.IOPWDN0
- * (dm6446) can be set appropriately for GPIOV33 pins.
- */
-
-static int __init davinci_gpio_irq_setup(void)
-{
-        unsigned        gpio, irq, bank;
-        struct clk      *clk;
-        u32             binten = 0;
-        unsigned        ngpio, bank_irq;
-        struct davinci_soc_info *soc_info = &davinci_soc_info;
-        struct davinci_gpio_regs        __iomem *g;
-
-        ngpio = soc_info->gpio_num;
-
-        bank_irq = soc_info->gpio_irq;
-        if (bank_irq == 0) {
-                printk(KERN_ERR "Don't know first GPIO bank IRQ.\n");
-                return -EINVAL;
-        }
-
-        clk = clk_get(NULL, "gpio");
-        if (IS_ERR(clk)) {
-                printk(KERN_ERR "Error %ld getting gpio clock?\n",
-                       PTR_ERR(clk));
-                return PTR_ERR(clk);
-        }
-        clk_enable(clk);
-
-        /* Arrange gpio_to_irq() support, handling either direct IRQs or
-         * banked IRQs.  Having GPIOs in the first GPIO bank use direct
-         * IRQs, while the others use banked IRQs, would need some setup
-         * tweaks to recognize hardware which can do that.
-         */
-        for (gpio = 0, bank = 0; gpio < ngpio; bank++, gpio += 32) {
-                chips[bank].chip.to_irq = gpio_to_irq_banked;
-                chips[bank].irq_base = soc_info->gpio_unbanked
-                        ? -EINVAL
-                        : (soc_info->intc_irq_num + gpio);
-        }
-
-        /*
-         * AINTC can handle direct/unbanked IRQs for GPIOs, with the GPIO
-         * controller only handling trigger modes.  We currently assume no
-         * IRQ mux conflicts; gpio_irq_type_unbanked() is only for GPIOs.
-         */
-        if (soc_info->gpio_unbanked) {
-                static struct irq_chip gpio_irqchip_unbanked;
-
-                /* pass "bank 0" GPIO IRQs to AINTC */
-                chips[0].chip.to_irq = gpio_to_irq_unbanked;
-                binten = BIT(0);
-
-                /* AINTC handles mask/unmask; GPIO handles triggering */
-                irq = bank_irq;
-                gpio_irqchip_unbanked = *irq_get_chip(irq);
-                gpio_irqchip_unbanked.name = "GPIO-AINTC";
-                gpio_irqchip_unbanked.irq_set_type = gpio_irq_type_unbanked;
-
-                /* default trigger: both edges */
-                g = gpio2regs(0);
-                __raw_writel(~0, &g->set_falling);
-                __raw_writel(~0, &g->set_rising);
-
-                /* set the direct IRQs up to use that irqchip */
-                for (gpio = 0; gpio < soc_info->gpio_unbanked; gpio++, irq++) {
-                        irq_set_chip(irq, &gpio_irqchip_unbanked);
-                        irq_set_handler_data(irq, (void *)__gpio_mask(gpio));
-                        irq_set_chip_data(irq, (__force void *)g);
-                        irq_set_status_flags(irq, IRQ_TYPE_EDGE_BOTH);
-                }
-
-                goto done;
-        }
-
-        /*
-         * Or, AINTC can handle IRQs for banks of 16 GPIO IRQs, which we
-         * then chain through our own handler.
-         */
-        for (gpio = 0, irq = gpio_to_irq(0), bank = 0;
-                        gpio < ngpio;
-                        bank++, bank_irq++) {
-                unsigned                i;
-
-                /* disabled by default, enabled only as needed */
-                g = gpio2regs(gpio);
-                __raw_writel(~0, &g->clr_falling);
-                __raw_writel(~0, &g->clr_rising);
-
-                /* set up all irqs in this bank */
-                irq_set_chained_handler(bank_irq, gpio_irq_handler);
-
-                /*
-                 * Each chip handles 32 gpios, and each irq bank consists of 16
-                 * gpio irqs. Pass the irq bank's corresponding controller to
-                 * the chained irq handler.
-                 */
-                irq_set_handler_data(bank_irq, &chips[gpio / 32]);
-
-                for (i = 0; i < 16 && gpio < ngpio; i++, irq++, gpio++) {
-                        irq_set_chip(irq, &gpio_irqchip);
-                        irq_set_chip_data(irq, (__force void *)g);
-                        irq_set_handler_data(irq, (void *)__gpio_mask(gpio));
-                        irq_set_handler(irq, handle_simple_irq);
-                        set_irq_flags(irq, IRQF_VALID);
-                }
-
-                binten |= BIT(bank);
-        }
-
-done:
-        /* BINTEN -- per-bank interrupt enable. genirq would also let these
-         * bits be set/cleared dynamically.
-         */
-        __raw_writel(binten, gpio_base + 0x08);
-
-        printk(KERN_INFO "DaVinci: %d gpio irqs\n", irq - gpio_to_irq(0));
-
-        return 0;
-}
diff --git a/arch/arm/mach-davinci/include/mach/gpio-davinci.h b/arch/arm/mach-davinci/include/mach/gpio-davinci.h
new file mode 100644
index 00000000000..1fdd1fd3544
--- /dev/null
+++ b/arch/arm/mach-davinci/include/mach/gpio-davinci.h
@@ -0,0 +1,91 @@
+/*
+ * TI DaVinci GPIO Support
+ *
+ * Copyright (c) 2006 David Brownell
+ * Copyright (c) 2007, MontaVista Software, Inc. <source@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.
+ */
+
+#ifndef __DAVINCI_DAVINCI_GPIO_H
+#define __DAVINCI_DAVINCI_GPIO_H
+
+#include <linux/io.h>
+#include <linux/spinlock.h>
+
+#include <asm-generic/gpio.h>
+
+#include <mach/irqs.h>
+#include <mach/common.h>
+
+#define DAVINCI_GPIO_BASE 0x01C67000
+
+enum davinci_gpio_type {
+        GPIO_TYPE_DAVINCI = 0,
+        GPIO_TYPE_TNETV107X,
+};
+
+/*
+ * basic gpio routines
+ *
+ * board-specific init should be done by arch/.../.../board-XXX.c (maybe
+ * initializing banks together) rather than boot loaders; kexec() won't
+ * go through boot loaders.
+ *
+ * the gpio clock will be turned on when gpios are used, and you may also
+ * need to pay attention to PINMUX registers to be sure those pins are
+ * used as gpios, not with other peripherals.
+ *
+ * On-chip GPIOs are numbered 0..(DAVINCI_N_GPIO-1).  For documentation,
+ * and maybe for later updates, code may write GPIO(N).  These may be
+ * all 1.8V signals, all 3.3V ones, or a mix of the two.  A given chip
+ * may not support all the GPIOs in that range.
+ *
+ * GPIOs can also be on external chips, numbered after the ones built-in
+ * to the DaVinci chip.  For now, they won't be usable as IRQ sources.
+ */
+#define GPIO(X)         (X)             /* 0 <= X <= (DAVINCI_N_GPIO - 1) */
+
+/* Convert GPIO signal to GPIO pin number */
+#define GPIO_TO_PIN(bank, gpio) (16 * (bank) + (gpio))
+
+struct davinci_gpio_controller {
+        struct gpio_chip        chip;
+        int                     irq_base;
+        spinlock_t              lock;
+        void __iomem            *regs;
+        void __iomem            *set_data;
+        void __iomem            *clr_data;
+        void __iomem            *in_data;
+};
+
+/* The __gpio_to_controller() and __gpio_mask() functions inline to constants
+ * with constant parameters; or in outlined code they execute at runtime.
+ *
+ * You'd access the controller directly when reading or writing more than
+ * one gpio value at a time, and to support wired logic where the value
+ * being driven by the cpu need not match the value read back.
+ *
+ * These are NOT part of the cross-platform GPIO interface
+ */
+static inline struct davinci_gpio_controller *
+__gpio_to_controller(unsigned gpio)
+{
+        struct davinci_gpio_controller *ctlrs = davinci_soc_info.gpio_ctlrs;
+        int index = gpio / 32;
+
+        if (!ctlrs || index >= davinci_soc_info.gpio_ctlrs_num)
+                return NULL;
+
+        return ctlrs + index;
+}
+
+static inline u32 __gpio_mask(unsigned gpio)
+{
+        return 1 << (gpio % 32);
+}
+
+#endif  /* __DAVINCI_DAVINCI_GPIO_H */
diff --git a/arch/arm/mach-davinci/include/mach/gpio.h b/arch/arm/mach-davinci/include/mach/gpio.h
index fbece126c2b..fbaae4772b9 100644
--- a/arch/arm/mach-davinci/include/mach/gpio.h
+++ b/arch/arm/mach-davinci/include/mach/gpio.h
@@ -13,80 +13,10 @@
 #ifndef __DAVINCI_GPIO_H
 #define __DAVINCI_GPIO_H
 
-#include <linux/io.h>
-#include <linux/spinlock.h>
-
 #include <asm-generic/gpio.h>
 
-#include <mach/irqs.h>
-#include <mach/common.h>
-
-#define DAVINCI_GPIO_BASE 0x01C67000
-
-enum davinci_gpio_type {
-        GPIO_TYPE_DAVINCI = 0,
-        GPIO_TYPE_TNETV107X,
-};
-
-/*
- * basic gpio routines
- *
- * board-specific init should be done by arch/.../.../board-XXX.c (maybe
- * initializing banks together) rather than boot loaders; kexec() won't
- * go through boot loaders.
- *
- * the gpio clock will be turned on when gpios are used, and you may also
- * need to pay attention to PINMUX registers to be sure those pins are
- * used as gpios, not with other peripherals.
- *
- * On-chip GPIOs are numbered 0..(DAVINCI_N_GPIO-1).  For documentation,
- * and maybe for later updates, code may write GPIO(N).  These may be
- * all 1.8V signals, all 3.3V ones, or a mix of the two.  A given chip
- * may not support all the GPIOs in that range.
- *
- * GPIOs can also be on external chips, numbered after the ones built-in
- * to the DaVinci chip.  For now, they won't be usable as IRQ sources.
- */
-#define GPIO(X)         (X)             /* 0 <= X <= (DAVINCI_N_GPIO - 1) */
-
-/* Convert GPIO signal to GPIO pin number */
-#define GPIO_TO_PIN(bank, gpio) (16 * (bank) + (gpio))
-
-struct davinci_gpio_controller {
-        struct gpio_chip        chip;
-        int                     irq_base;
-        spinlock_t              lock;
-        void __iomem            *regs;
-        void __iomem            *set_data;
-        void __iomem            *clr_data;
-        void __iomem            *in_data;
-};
-
-/* The __gpio_to_controller() and __gpio_mask() functions inline to constants
- * with constant parameters; or in outlined code they execute at runtime.
- *
- * You'd access the controller directly when reading or writing more than
- * one gpio value at a time, and to support wired logic where the value
- * being driven by the cpu need not match the value read back.
- *
- * These are NOT part of the cross-platform GPIO interface
- */
-static inline struct davinci_gpio_controller *
-__gpio_to_controller(unsigned gpio)
-{
-        struct davinci_gpio_controller *ctlrs = davinci_soc_info.gpio_ctlrs;
-        int index = gpio / 32;
-
-        if (!ctlrs || index >= davinci_soc_info.gpio_ctlrs_num)
-                return NULL;
-
-        return ctlrs + index;
-}
-
-static inline u32 __gpio_mask(unsigned gpio)
-{
-        return 1 << (gpio % 32);
-}
+/* The inline versions use the static inlines in the driver header */
+#include "gpio-davinci.h"
 
 /*
  * The get/set/clear functions will inline when called with constant
@@ -147,11 +77,6 @@ static inline int gpio_cansleep(unsigned gpio)
                 return __gpio_cansleep(gpio);
 }
 
-static inline int gpio_to_irq(unsigned gpio)
-{
-        return __gpio_to_irq(gpio);
-}
-
 static inline int irq_to_gpio(unsigned irq)
 {
         /* don't support the reverse mapping */
diff --git a/arch/arm/mach-davinci/tnetv107x.c b/arch/arm/mach-davinci/tnetv107x.c
index 1b28fdd892a..409bb869c7c 100644
--- a/arch/arm/mach-davinci/tnetv107x.c
+++ b/arch/arm/mach-davinci/tnetv107x.c
@@ -12,6 +12,7 @@
  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  */
+#include <linux/gpio.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/clk.h>
@@ -27,9 +28,9 @@
 #include <mach/psc.h>
 #include <mach/cp_intc.h>
 #include <mach/irqs.h>
-#include <mach/gpio.h>
 #include <mach/hardware.h>
 #include <mach/tnetv107x.h>
+#include <mach/gpio-davinci.h>
 
 #include "clock.h"
 #include "mux.h"