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ARM: mach-shmobile: Kota2 GPIO Keys support

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This patch ties in GPIO Keys support on the Kota2
board. For now the keys are used in polling mode,
but after extending the sh73a0 PFC with IRQ support
we should be able to switch to the IRQ driven driver.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Magnus Damm 2011-08-18 05:44:25 +00:00 • committed by Paul Mundt
parent ef4f994ae1
commit 6b7c0ea212
1 changed files with 32 additions and 0 deletions

32
arch/arm/mach-shmobile/board-kota2.c
View file

@ -31,6 +31,7 @@
#include <linux/gpio.h>
#include <linux/input.h>
#include <linux/input/sh_keysc.h>
#include <linux/gpio_keys.h>
#include <mach/hardware.h>
#include <mach/sh73a0.h>
#include <mach/common.h>
@ -114,9 +115,40 @@ static struct platform_device keysc_device = {
},
};
#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_VOLUMEUP, GPIO_PORT56, "+"), /* S2: VOL+ [IRQ9] */
GPIO_KEY(KEY_VOLUMEDOWN, GPIO_PORT54, "-"), /* S3: VOL- [IRQ10] */
GPIO_KEY(KEY_MENU, GPIO_PORT27, "Menu"), /* S4: MENU [IRQ30] */
GPIO_KEY(KEY_HOMEPAGE, GPIO_PORT26, "Home"), /* S5: HOME [IRQ31] */
GPIO_KEY(KEY_BACK, GPIO_PORT11, "Back"), /* S6: BACK [IRQ0] */
GPIO_KEY(KEY_PHONE, GPIO_PORT238, "Tel"), /* S7: TEL [IRQ11] */
GPIO_KEY(KEY_POWER, GPIO_PORT239, "C1"), /* S8: CAM [IRQ13] */
GPIO_KEY(KEY_MAIL, GPIO_PORT224, "Mail"), /* S9: MAIL [IRQ3] */
/* Omitted button "C3?": GPIO_PORT223 - S10: CUST [IRQ8] */
GPIO_KEY(KEY_CAMERA, GPIO_PORT164, "C2"), /* S11: CAM_HALF [IRQ25] */
/* Omitted button "?": GPIO_PORT152 - S12: CAM_FULL [No IRQ] */
};
static struct gpio_keys_platform_data gpio_key_info = {
.buttons = gpio_buttons,
.nbuttons = ARRAY_SIZE(gpio_buttons),
.poll_interval = 250, /* polled for now */
};
static struct platform_device gpio_keys_device = {
.name = "gpio-keys-polled", /* polled for now */
.id = -1,
.dev = {
.platform_data = &gpio_key_info,
},
};
static struct platform_device *kota2_devices[] __initdata = {
&eth_device,
&keysc_device,
&gpio_keys_device,
};
static struct map_desc kota2_io_desc[] __initdata = {