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| author | Stanislav Brabec <utx@penguin.cz> | 2009-10-16 20:50:05 +0200 |
|---|---|---|
| committer | Eric Miao <eric.y.miao@gmail.com> | 2009-10-17 22:55:44 +0800 |
| commit | f6919eb41127db2e06342efcc2da1eeb4646ec34 (patch) | |
| tree | 2d4976fb6c826542172837fde5fd8b3c52dc012d /arch | |
| parent | 0bff2fc319c2a3cb8969c71fdc2f941a15319b2c (diff) | |
| download | linux-3.10-f6919eb41127db2e06342efcc2da1eeb4646ec34.tar.gz linux-3.10-f6919eb41127db2e06342efcc2da1eeb4646ec34.tar.bz2 linux-3.10-f6919eb41127db2e06342efcc2da1eeb4646ec34.zip | |
[ARM] pxa/spitz: add gpio button support (fixes regression)
Updating desc for lid keys and resending patch with proper comments:
Define Spitz buttons as GPIO keys in a way compatible with the old driver:
On/Off: As Suspend EV_PWR key
Raw values of lid sensors SWA and SWB: As EV_SW switches
SWA: Display Down
SWB: Lid Closed
Recommended user space decoding:
SWA==0 & SWB==0: lid opened (landscape mode)
SWA==1 & SWB==0: invalid (or mechanic race condition)
SWA==0 & SWB==1: lid closed with display up (portrait mode or mechanic
race condition while closing to display-less mode)
SWA==1 & SWB==1: lid closed with display down (display-less mode)
AK_INT remote trigger is not mapped as input event. Without complete
remote driver and remote pull-up control it has no useful
interpretation.
Signed-off-by: Stanislav Brabec <utx@penguin.cz>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-pxa/spitz.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c index ee8d6038ce8..82ff5733e4d 100644 --- a/arch/arm/mach-pxa/spitz.c +++ b/arch/arm/mach-pxa/spitz.c @@ -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> @@ -375,6 +376,43 @@ static struct platform_device spitzkbd_device = { }; +static struct gpio_keys_button spitz_gpio_keys[] = { + { + .type = EV_PWR, + .code = KEY_SUSPEND, + .gpio = SPITZ_GPIO_ON_KEY, + .desc = "On/Off", + .wakeup = 1, + }, + /* Two buttons detecting the lid state */ + { + .type = EV_SW, + .code = 0, + .gpio = SPITZ_GPIO_SWA, + .desc = "Display Down", + }, + { + .type = EV_SW, + .code = 1, + .gpio = SPITZ_GPIO_SWB, + .desc = "Lid Closed", + }, +}; + +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 +727,7 @@ static struct platform_device sharpsl_rom_device = { static struct platform_device *devices[] __initdata = { &spitzscoop_device, &spitzkbd_device, + &spitz_gpio_keys_device, &spitzled_device, &sharpsl_nand_device, &sharpsl_rom_device, |