diff options
| author | Nitin Kumbhar <nkumbhar@nvidia.com> | 2011-01-28 14:51:14 +0530 |
|---|---|---|
| committer | Niket Sirsi <nsirsi@nvidia.com> | 2011-01-28 19:39:02 -0800 |
| commit | cb96d40b1a3665235a564e078a305d0e419266e1 (patch) | |
| tree | aad7b656068c9507107bdfe8519523e7d5fdb26a /arch | |
| parent | 4ff2f5a056bf5a17aac4cdb256a39b304c9a1314 (diff) | |
tegra: ventana: add wakeup_key for gpio-keys
Checks if wake up source is a wake key using PMC's wake
status register.
BUG 745149
Change-Id: Ib3684163f3e9913c2aab814db8c1904899bc9819
Reviewed-on: http://git-master/r/17456
Tested-by: Nitin Kumbhar <nkumbhar@nvidia.com>
Reviewed-by: Varun Wadekar <vwadekar@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-tegra/board-ventana.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/board-ventana.c b/arch/arm/mach-tegra/board-ventana.c index a225d331cd21..351f192e6e3a 100644 --- a/arch/arm/mach-tegra/board-ventana.c +++ b/arch/arm/mach-tegra/board-ventana.c @@ -64,6 +64,7 @@ #include "devices.h" #include "gpio-names.h" #include "fuse.h" +#include "wakeups-t2.h" static struct usb_mass_storage_platform_data tegra_usb_fsg_platform = { .vendor = "NVIDIA", @@ -416,9 +417,20 @@ static struct gpio_keys_button ventana_keys[] = { [6] = GPIO_KEY(KEY_MENU, PC7, 0), }; +#define PMC_WAKE_STATUS 0x14 + +static int ventana_wakeup_key(void) +{ + unsigned long status = + readl(IO_ADDRESS(TEGRA_PMC_BASE) + PMC_WAKE_STATUS); + + return status & TEGRA_WAKE_GPIO_PV2 ? KEY_POWER : KEY_RESERVED; +} + static struct gpio_keys_platform_data ventana_keys_platform_data = { .buttons = ventana_keys, .nbuttons = ARRAY_SIZE(ventana_keys), + .wakeup_key = ventana_wakeup_key, }; static struct platform_device ventana_keys_device = { |