spitz: add gpio button support

Pavel Machek
2009-10-06T07:47:23Z

This is call for testing/comments. It adds support for power button,
SWA and SWB.. I'm not sure what AK_INT is, nor what event it should
generate. Unfortunately, this does _not_ fix suspend/resume, and
neither does switch back to old spitz-keyboard help.

Signed-off-by: Pavel Machek <pavel@ucw.cz>
Pavel

--- linux-rc/arch/arm.ofic/mach-pxa/spitz.c 2009-09-28 12:09:26.000000000 +0200
+++ linux-rc/arch/arm/mach-pxa/spitz.c 2009-10-04 20:58:32.000000000 +0200
@@ -15,6 +15,7 @@
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
+#include <linux/gpio_keys.h>
#include <linux/gpio.h>
#include <linux/leds.h>
#include <linux/mtd/physmap.h>
@@ -367,7 +368,8 @@
};

static struct platform_device spitzkbd_device = {
- .name = "matrix-keypad",
+ .name = "matrix-keypad",
+ // .name = "spitz-keyboard",
.id = -1,
.dev = {
.platform_data = &spitzkbd_pdata,
@@ -375,6 +377,48 @@
};

+static struct gpio_keys_button spitz_gpio_keys[] = {
+ {
+ .type = EV_KEY,
+ .code = KEY_SUSPEND,
+ .gpio = SPITZ_GPIO_ON_KEY,
+ .desc = "Poweron",
+ .wakeup = 1,
+ },
+ {
+ .type = EV_SW,
+ .code = 0,
+ .gpio = SPITZ_GPIO_SWA,
+ .desc = "SWA",
+ },
+ {
+ .type = EV_SW,
+ .code = 1,
+ .gpio = SPITZ_GPIO_SWB,
+ .desc = "SWB",
+ },
+ {
+ .type = EV_KEY,
+ .code = KEY_F13,
+ .gpio = SPITZ_GPIO_AK_INT,
+ .desc = "HP",
+ },
+};
+
+static struct gpio_keys_platform_data spitz_gpio_keys_platform_data = {
+ .buttons = spitz_gpio_keys,
+ .nbuttons = ARRAY_SIZE(spitz_gpio_keys),
+};
+
+static struct platform_device spitz_gpio_keys_device = {
+ .name = "gpio-keys",
+ .id = -1,
+ .dev = {
+ .platform_data = &spitz_gpio_keys_platform_data,
+ },
+};
+
+
/*
* Spitz LEDs
*/
@@ -689,6 +733,7 @@
static struct platform_device *devices[] __initdata = {
&spitzscoop_device,
&spitzkbd_device,
+ &spitz_gpio_keys_device,
&spitzled_device,
&sharpsl_nand_device,
&sharpsl_rom_device,

--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html