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Next: [PATCH 3/3] msm: 8x50: add gpio device configuration.
From: Gregory Bean on 18 Jun 2010 15:20
Add device configuration and board-init for gpio on the MSM7x30.

Signed-off-by: Gregory Bean <gbean(a)codeaurora.org>
---
arch/arm/mach-msm/board-msm7x30.c | 29 +++++++++++++++++++++++++-
arch/arm/mach-msm/devices-msm7x30.c | 23 +++++++++++++++++++++
arch/arm/mach-msm/devices.h | 35 +++++++++++++++++++++++++++++++++
arch/arm/mach-msm/include/mach/gpio.h | 2 +
4 files changed, 87 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-msm/board-msm7x30.c b/arch/arm/mach-msm/board-msm7x30.c
index edd5983..f1ae525 100644
--- a/arch/arm/mach-msm/board-msm7x30.c
+++ b/arch/arm/mach-msm/board-msm7x30.c
@@ -55,7 +55,31 @@ static void msm7x30_init_uart2(void)
}
#endif

-static struct platform_device *devices[] __initdata = {
+/*
+ * Early devices are those which provide a system service which will be
+ * required by one or more of the function calls in msm7x30_init.
+ * These devices must be probed and online first in order for
+ * the init routine to run successfully.
+ */
+static struct platform_device *early_devices[] __initdata = {
+#ifdef CONFIG_GPIOLIB
+ &msm_gpio_devices[0],
+ &msm_gpio_devices[1],
+ &msm_gpio_devices[2],
+ &msm_gpio_devices[3],
+ &msm_gpio_devices[4],
+ &msm_gpio_devices[5],
+ &msm_gpio_devices[6],
+ &msm_gpio_devices[7],
+#endif
+};
+
+/*
+ * Late devices are those which are dependent upon services initialized
+ * by msm7x30_init, or which simply have no dependents and can have
+ * their initialization deferred.
+ */
+static struct platform_device *late_devices[] __initdata = {
#if defined(CONFIG_SERIAL_MSM) || defined(CONFIG_MSM_SERIAL_DEBUGGER)
&msm_device_uart2,
#endif
@@ -69,10 +93,11 @@ static void __init msm7x30_init_irq(void)

static void __init msm7x30_init(void)
{
+ platform_add_devices(early_devices, ARRAY_SIZE(early_devices));
#ifdef CONFIG_SERIAL_MSM_CONSOLE
msm7x30_init_uart2();
#endif
- platform_add_devices(devices, ARRAY_SIZE(devices));
+ platform_add_devices(late_devices, ARRAY_SIZE(late_devices));
}

static void __init msm7x30_map_io(void)
diff --git a/arch/arm/mach-msm/devices-msm7x30.c b/arch/arm/mach-msm/devices-msm7x30.c
index b449e8a..995b1f7 100644
--- a/arch/arm/mach-msm/devices-msm7x30.c
+++ b/arch/arm/mach-msm/devices-msm7x30.c
@@ -126,3 +126,26 @@ struct clk msm_clocks_7x30[] = {

unsigned msm_num_clocks_7x30 = ARRAY_SIZE(msm_clocks_7x30);

+#ifdef CONFIG_GPIOLIB
+static struct msm7200a_gpio_platform_data gpio_platform_data[] = {
+ MSM7200A_GPIO_PLATFORM_DATA(0, 0, 15, INT_GPIO_GROUP1),
+ MSM7200A_GPIO_PLATFORM_DATA(1, 16, 43, INT_GPIO_GROUP2),
+ MSM7200A_GPIO_PLATFORM_DATA(2, 44, 67, INT_GPIO_GROUP1),
+ MSM7200A_GPIO_PLATFORM_DATA(3, 68, 94, INT_GPIO_GROUP1),
+ MSM7200A_GPIO_PLATFORM_DATA(4, 95, 106, INT_GPIO_GROUP1),
+ MSM7200A_GPIO_PLATFORM_DATA(5, 107, 133, INT_GPIO_GROUP1),
+ MSM7200A_GPIO_PLATFORM_DATA(6, 134, 150, INT_GPIO_GROUP1),
+ MSM7200A_GPIO_PLATFORM_DATA(7, 151, 181, INT_GPIO_GROUP1),
+};
+
+struct platform_device msm_gpio_devices[] = {
+ MSM7200A_GPIO_DEVICE(0, gpio_platform_data),
+ MSM7200A_GPIO_DEVICE(1, gpio_platform_data),
+ MSM7200A_GPIO_DEVICE(2, gpio_platform_data),
+ MSM7200A_GPIO_DEVICE(3, gpio_platform_data),
+ MSM7200A_GPIO_DEVICE(4, gpio_platform_data),
+ MSM7200A_GPIO_DEVICE(5, gpio_platform_data),
+ MSM7200A_GPIO_DEVICE(6, gpio_platform_data),
+ MSM7200A_GPIO_DEVICE(7, gpio_platform_data),
+};
+#endif
diff --git a/arch/arm/mach-msm/devices.h b/arch/arm/mach-msm/devices.h
index 568443e..321d4db 100644
--- a/arch/arm/mach-msm/devices.h
+++ b/arch/arm/mach-msm/devices.h
@@ -17,6 +17,8 @@
#define __ARCH_ARM_MACH_MSM_DEVICES_H

#include "clock.h"
+#include "gpio_hw.h"
+#include "msm7200a-gpio.h"

extern struct platform_device msm_device_uart1;
extern struct platform_device msm_device_uart2;
@@ -44,4 +46,37 @@ extern unsigned msm_num_clocks_7x30;
extern struct clk msm_clocks_8x50[];
extern unsigned msm_num_clocks_8x50;

+#ifdef CONFIG_GPIOLIB
+#define MSM7200A_GPIO_PLATFORM_DATA(ix, begin, end, irq) \
+ [ix] = { \
+ .gpio_base = begin, \
+ .ngpio = end - begin + 1, \
+ .irq_base = MSM_GPIO_TO_INT(begin), \
+ .irq_summary = irq, \
+ .latch_level_irqs = false, \
+ .regs = { \
+ .in = GPIO_IN_ ## ix, \
+ .out = GPIO_OUT_ ## ix, \
+ .oe = GPIO_OE_ ## ix, \
+ .int_status = GPIO_INT_STATUS_ ## ix, \
+ .int_clear = GPIO_INT_CLEAR_ ## ix, \
+ .int_en = GPIO_INT_EN_ ## ix, \
+ .int_edge = GPIO_INT_EDGE_ ## ix, \
+ .int_pos = GPIO_INT_POS_ ## ix, \
+ }, \
+ }
+
+#define MSM7200A_GPIO_DEVICE(ix, pdata) \
+ { \
+ .name = "msm7200a-gpio", \
+ .id = ix, \
+ .num_resources = 0, \
+ .dev = { \
+ .platform_data = &pdata[ix], \
+ }, \
+ }
+
+extern struct platform_device msm_gpio_devices[];
+#endif
+
#endif
diff --git a/arch/arm/mach-msm/include/mach/gpio.h b/arch/arm/mach-msm/include/mach/gpio.h
index 83e47c0..ff80758 100644
--- a/arch/arm/mach-msm/include/mach/gpio.h
+++ b/arch/arm/mach-msm/include/mach/gpio.h
@@ -16,6 +16,8 @@
#ifndef __ASM_ARCH_MSM_GPIO_H
#define __ASM_ARCH_MSM_GPIO_H

+#define ARCH_NR_GPIOS 512
+
#include <asm-generic/gpio.h>

#define gpio_get_value __gpio_get_value
--
1.7.0.4

--
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
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Next: [PATCH 3/3] msm: 8x50: add gpio device configuration.