ARM: davinci: support gpio platform device

DaVinci GPIO driver now uses platform device model.
Add a GPIO platform register API to convert the
traditional DaVinci  SoCs to use the new model.

While at it, also group related include files together
wherever that was not the case.

Signed-off-by: Philip Avinash <avinashphilip@ti.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
[nsekhar@ti.com: move function declaration to local header,
		 simplify commit message, merge SoC specific
		 portions from other patches into this patch]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

7 files changed, 126 insertions, 28 deletions

diff --git a/arch/arm/mach-davinci/davinci.h b/arch/arm/mach-davinci/davinci.h
index 2ab5d577186f..2eebc4338802 100644
--- a/arch/arm/mach-davinci/davinci.h
+++ b/arch/arm/mach-davinci/davinci.h
@@ -53,6 +53,9 @@ extern void __iomem *davinci_sysmod_base;
 #define DAVINCI_SYSMOD_VIRT(x)  (davinci_sysmod_base + (x))
 void davinci_map_sysmod(void);
 
+#define DAVINCI_GPIO_BASE 0x01C67000
+int davinci_gpio_register(struct resource *res, int size, void *pdata);
+
 /* DM355 base addresses */
 #define DM355_ASYNC_EMIF_CONTROL_BASE   0x01e10000
 #define DM355_ASYNC_EMIF_DATA_CE0_BASE  0x02000000
@@ -82,6 +85,7 @@ void dm355_init_spi0(unsigned chipselect_mask,
                 const struct spi_board_info *info, unsigned len);
 void dm355_init_asp1(u32 evt_enable, struct snd_platform_data *pdata);
 int dm355_init_video(struct vpfe_config *, struct vpbe_config *);
+int dm355_gpio_register(void);
 
 /* DM365 function declarations */
 void dm365_init(void);
@@ -92,11 +96,13 @@ void dm365_init_rtc(void);
 void dm365_init_spi0(unsigned chipselect_mask,
                         const struct spi_board_info *info, unsigned len);
 int dm365_init_video(struct vpfe_config *, struct vpbe_config *);
+int dm365_gpio_register(void);
 
 /* DM644x function declarations */
 void dm644x_init(void);
 void dm644x_init_asp(struct snd_platform_data *pdata);
 int dm644x_init_video(struct vpfe_config *, struct vpbe_config *);
+int dm644x_gpio_register(void);
 
 /* DM646x function declarations */
 void dm646x_init(void);
@@ -106,6 +112,7 @@ int dm646x_init_edma(struct edma_rsv_info *rsv);
 void dm646x_video_init(void);
 void dm646x_setup_vpif(struct vpif_display_config *,
                        struct vpif_capture_config *);
+int dm646x_gpio_register(void);
 
 extern struct platform_device dm365_serial_device[];
 extern struct platform_device dm355_serial_device[];
diff --git a/arch/arm/mach-davinci/devices.c b/arch/arm/mach-davinci/devices.c
index 111573c0aad1..3996e98f52fb 100644
--- a/arch/arm/mach-davinci/devices.c
+++ b/arch/arm/mach-davinci/devices.c
@@ -318,6 +318,19 @@ static void davinci_init_wdt(void)
         platform_device_register(&davinci_wdt_device);
 }
 
+static struct platform_device davinci_gpio_device = {
+        .name   = "davinci_gpio",
+        .id     = -1,
+};
+
+int davinci_gpio_register(struct resource *res, int size, void *pdata)
+{
+        davinci_gpio_device.resource = res;
+        davinci_gpio_device.num_resources = size;
+        davinci_gpio_device.dev.platform_data = pdata;
+        return platform_device_register(&davinci_gpio_device);
+}
+
 /*-------------------------------------------------------------------------*/
 
 /*-------------------------------------------------------------------------*/
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index 3eaa5f6b2160..ef9ff1fb6f52 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -13,8 +13,10 @@
 #include <linux/serial_8250.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
-
 #include <linux/spi/spi.h>
+#include <linux/platform_data/edma.h>
+#include <linux/platform_data/gpio-davinci.h>
+#include <linux/platform_data/spi-davinci.h>
 
 #include <asm/mach/map.h>
 
@@ -25,9 +27,6 @@
 #include <mach/time.h>
 #include <mach/serial.h>
 #include <mach/common.h>
-#include <linux/platform_data/spi-davinci.h>
-#include <mach/gpio-davinci.h>
-#include <linux/platform_data/edma.h>
 
 #include "davinci.h"
 #include "clock.h"
@@ -886,6 +885,30 @@ static struct platform_device dm355_vpbe_dev = {
         },
 };
 
+static struct resource dm355_gpio_resources[] = {
+        {       /* registers */
+                .start  = DAVINCI_GPIO_BASE,
+                .end    = DAVINCI_GPIO_BASE + SZ_4K - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        {       /* interrupt */
+                .start  = IRQ_DM355_GPIOBNK0,
+                .end    = IRQ_DM355_GPIOBNK6,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct davinci_gpio_platform_data dm355_gpio_platform_data = {
+        .ngpio          = 104,
+        .intc_irq_num   = DAVINCI_N_AINTC_IRQ,
+};
+
+int __init dm355_gpio_register(void)
+{
+        return davinci_gpio_register(dm355_gpio_resources,
+                                     sizeof(dm355_gpio_resources),
+                                     &dm355_gpio_platform_data);
+}
 /*----------------------------------------------------------------------*/
 
 static struct map_desc dm355_io_desc[] = {
@@ -1005,10 +1028,6 @@ static struct davinci_soc_info davinci_soc_info_dm355 = {
         .intc_irq_prios         = dm355_default_priorities,
         .intc_irq_num           = DAVINCI_N_AINTC_IRQ,
         .timer_info             = &dm355_timer_info,
-        .gpio_type              = GPIO_TYPE_DAVINCI,
-        .gpio_base              = DAVINCI_GPIO_BASE,
-        .gpio_num               = 104,
-        .gpio_irq               = IRQ_DM355_GPIOBNK0,
         .sram_dma               = 0x00010000,
         .sram_len               = SZ_32K,
 };
diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index c29e324eb0bb..1511a0680f9a 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -19,6 +19,9 @@
 #include <linux/dma-mapping.h>
 #include <linux/spi/spi.h>
 #include <linux/platform_data/edma.h>
+#include <linux/platform_data/gpio-davinci.h>
+#include <linux/platform_data/keyscan-davinci.h>
+#include <linux/platform_data/spi-davinci.h>
 
 #include <asm/mach/map.h>
 
@@ -29,9 +32,6 @@
 #include <mach/time.h>
 #include <mach/serial.h>
 #include <mach/common.h>
-#include <linux/platform_data/keyscan-davinci.h>
-#include <linux/platform_data/spi-davinci.h>
-#include <mach/gpio-davinci.h>
 
 #include "davinci.h"
 #include "clock.h"
@@ -698,6 +698,32 @@ void __init dm365_init_spi0(unsigned chipselect_mask,
         platform_device_register(&dm365_spi0_device);
 }
 
+static struct resource dm365_gpio_resources[] = {
+        {       /* registers */
+                .start  = DAVINCI_GPIO_BASE,
+                .end    = DAVINCI_GPIO_BASE + SZ_4K - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        {       /* interrupt */
+                .start  = IRQ_DM365_GPIO0,
+                .end    = IRQ_DM365_GPIO7,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct davinci_gpio_platform_data dm365_gpio_platform_data = {
+        .ngpio          = 104,
+        .intc_irq_num   = DAVINCI_N_AINTC_IRQ,
+        .gpio_unbanked  = 8,
+};
+
+int __init dm365_gpio_register(void)
+{
+        return davinci_gpio_register(dm365_gpio_resources,
+                                     sizeof(dm365_gpio_resources),
+                                     &dm365_gpio_platform_data);
+}
+
 static struct emac_platform_data dm365_emac_pdata = {
         .ctrl_reg_offset        = DM365_EMAC_CNTRL_OFFSET,
         .ctrl_mod_reg_offset    = DM365_EMAC_CNTRL_MOD_OFFSET,
@@ -1105,11 +1131,6 @@ static struct davinci_soc_info davinci_soc_info_dm365 = {
         .intc_irq_prios         = dm365_default_priorities,
         .intc_irq_num           = DAVINCI_N_AINTC_IRQ,
         .timer_info             = &dm365_timer_info,
-        .gpio_type              = GPIO_TYPE_DAVINCI,
-        .gpio_base              = DAVINCI_GPIO_BASE,
-        .gpio_num               = 104,
-        .gpio_irq               = IRQ_DM365_GPIO0,
-        .gpio_unbanked          = 8,    /* really 16 ... skip muxed GPIOs */
         .emac_pdata             = &dm365_emac_pdata,
         .sram_dma               = 0x00010000,
         .sram_len               = SZ_32K,
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index 4f74682293d6..143a3217e8ef 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -13,6 +13,7 @@
 #include <linux/serial_8250.h>
 #include <linux/platform_device.h>
 #include <linux/platform_data/edma.h>
+#include <linux/platform_data/gpio-davinci.h>
 
 #include <asm/mach/map.h>
 
@@ -23,7 +24,6 @@
 #include <mach/time.h>
 #include <mach/serial.h>
 #include <mach/common.h>
-#include <mach/gpio-davinci.h>
 
 #include "davinci.h"
 #include "clock.h"
@@ -771,6 +771,30 @@ static struct platform_device dm644x_vpbe_dev = {
         },
 };
 
+static struct resource dm644_gpio_resources[] = {
+        {       /* registers */
+                .start  = DAVINCI_GPIO_BASE,
+                .end    = DAVINCI_GPIO_BASE + SZ_4K - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        {       /* interrupt */
+                .start  = IRQ_GPIOBNK0,
+                .end    = IRQ_GPIOBNK4,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct davinci_gpio_platform_data dm644_gpio_platform_data = {
+        .ngpio          = 71,
+        .intc_irq_num   = DAVINCI_N_AINTC_IRQ,
+};
+
+int __init dm644x_gpio_register(void)
+{
+        return davinci_gpio_register(dm644_gpio_resources,
+                                     sizeof(dm644_gpio_resources),
+                                     &dm644_gpio_platform_data);
+}
 /*----------------------------------------------------------------------*/
 
 static struct map_desc dm644x_io_desc[] = {
@@ -897,10 +921,6 @@ static struct davinci_soc_info davinci_soc_info_dm644x = {
         .intc_irq_prios         = dm644x_default_priorities,
         .intc_irq_num           = DAVINCI_N_AINTC_IRQ,
         .timer_info             = &dm644x_timer_info,
-        .gpio_type              = GPIO_TYPE_DAVINCI,
-        .gpio_base              = DAVINCI_GPIO_BASE,
-        .gpio_num               = 71,
-        .gpio_irq               = IRQ_GPIOBNK0,
         .emac_pdata             = &dm644x_emac_pdata,
         .sram_dma               = 0x00008000,
         .sram_len               = SZ_16K,
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index 68f8d1f1aca1..2a73f299c1d0 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -14,6 +14,7 @@
 #include <linux/serial_8250.h>
 #include <linux/platform_device.h>
 #include <linux/platform_data/edma.h>
+#include <linux/platform_data/gpio-davinci.h>
 
 #include <asm/mach/map.h>
 
@@ -24,7 +25,6 @@
 #include <mach/time.h>
 #include <mach/serial.h>
 #include <mach/common.h>
-#include <mach/gpio-davinci.h>
 
 #include "davinci.h"
 #include "clock.h"
@@ -748,6 +748,30 @@ static struct platform_device vpif_capture_dev = {
         .num_resources  = ARRAY_SIZE(vpif_capture_resource),
 };
 
+static struct resource dm646x_gpio_resources[] = {
+        {       /* registers */
+                .start  = DAVINCI_GPIO_BASE,
+                .end    = DAVINCI_GPIO_BASE + SZ_4K - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        {       /* interrupt */
+                .start  = IRQ_DM646X_GPIOBNK0,
+                .end    = IRQ_DM646X_GPIOBNK2,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct davinci_gpio_platform_data dm646x_gpio_platform_data = {
+        .ngpio          = 43,
+        .intc_irq_num   = DAVINCI_N_AINTC_IRQ,
+};
+
+int __init dm646x_gpio_register(void)
+{
+        return davinci_gpio_register(dm646x_gpio_resources,
+                                     sizeof(dm646x_gpio_resources),
+                                     &dm646x_gpio_platform_data);
+}
 /*----------------------------------------------------------------------*/
 
 static struct map_desc dm646x_io_desc[] = {
@@ -874,10 +898,6 @@ static struct davinci_soc_info davinci_soc_info_dm646x = {
         .intc_irq_prios         = dm646x_default_priorities,
         .intc_irq_num           = DAVINCI_N_AINTC_IRQ,
         .timer_info             = &dm646x_timer_info,
-        .gpio_type              = GPIO_TYPE_DAVINCI,
-        .gpio_base              = DAVINCI_GPIO_BASE,
-        .gpio_num               = 43, /* Only 33 usable */
-        .gpio_irq               = IRQ_DM646X_GPIOBNK0,
         .emac_pdata             = &dm646x_emac_pdata,
         .sram_dma               = 0x10010000,
         .sram_len               = SZ_32K,
diff --git a/arch/arm/mach-davinci/include/mach/gpio-davinci.h b/arch/arm/mach-davinci/include/mach/gpio-davinci.h
index 551ba43a763e..0d63b24cefc9 100644
--- a/arch/arm/mach-davinci/include/mach/gpio-davinci.h
+++ b/arch/arm/mach-davinci/include/mach/gpio-davinci.h
@@ -21,8 +21,6 @@
 #include <mach/irqs.h>
 #include <mach/common.h>
 
-#define DAVINCI_GPIO_BASE 0x01C67000
-
 enum davinci_gpio_type {
         GPIO_TYPE_DAVINCI = 0,
         GPIO_TYPE_TNETV107X,