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ARM: shmobile: ape6evm: support GPIO switches

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The ape6evm board has switches S16 - S23 wired up to GPIO pins.
This patch allows access to those pins as gpio-keys.

Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Simon Horman 2013-07-30 10:59:00 +09:00
parent f79d68da51
commit 5c6db1a421
1 changed files with 23 additions and 0 deletions
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23
arch/arm/mach-shmobile/board-ape6evm.c
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@ -19,6 +19,8 @@
*/ */
#include <linux/gpio.h> #include <linux/gpio.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/interrupt.h> #include <linux/interrupt.h>
#include <linux/kernel.h> #include <linux/kernel.h>
#include <linux/mfd/tmio.h> #include <linux/mfd/tmio.h>
@ -37,6 +39,24 @@
#include <asm/mach-types.h> #include <asm/mach-types.h>
#include <asm/mach/arch.h> #include <asm/mach/arch.h>
/* GPIO KEY */
#define GPIO_KEY(c, g, d, ...) \
{ .code = c, .gpio = g, .desc = d, .active_low = 1 }
static struct gpio_keys_button gpio_buttons[] = {
GPIO_KEY(KEY_0, 324, "S16"),
GPIO_KEY(KEY_MENU, 325, "S17"),
GPIO_KEY(KEY_HOME, 326, "S18"),
GPIO_KEY(KEY_BACK, 327, "S19"),
GPIO_KEY(KEY_VOLUMEUP, 328, "S20"),
GPIO_KEY(KEY_VOLUMEDOWN, 329, "S21"),
};
static struct __initdata gpio_keys_platform_data ape6evm_keys_pdata = {
.buttons = gpio_buttons,
.nbuttons = ARRAY_SIZE(gpio_buttons),
};
/* Dummy supplies, where voltage doesn't matter */ /* Dummy supplies, where voltage doesn't matter */
static struct regulator_consumer_supply dummy_supplies[] = { static struct regulator_consumer_supply dummy_supplies[] = {
REGULATOR_SUPPLY("vddvario", "smsc911x"), REGULATOR_SUPPLY("vddvario", "smsc911x"),
@ -172,6 +192,9 @@ static void __init ape6evm_add_standard_devices(void)
platform_device_register_resndata(&platform_bus, "sh_mobile_sdhi", 1, platform_device_register_resndata(&platform_bus, "sh_mobile_sdhi", 1,
sdhi1_resources, ARRAY_SIZE(sdhi1_resources), sdhi1_resources, ARRAY_SIZE(sdhi1_resources),
&sdhi1_pdata, sizeof(sdhi1_pdata)); &sdhi1_pdata, sizeof(sdhi1_pdata));
platform_device_register_data(&platform_bus, "gpio-keys", -1,
&ape6evm_keys_pdata,
sizeof(ape6evm_keys_pdata));
} }
static const char *ape6evm_boards_compat_dt[] __initdata = { static const char *ape6evm_boards_compat_dt[] __initdata = {