ARM: sa1100/assabet: add gpio keys support for right-hand two buttons

Add gpio keys support for the right-hand two buttons on the Assabet,
which can be used to wake up the CPU after PM.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>

diff --git a/arch/arm/mach-sa1100/assabet.c b/arch/arm/mach-sa1100/assabet.c
index 3e8c094..53afea5 100644 (file)
--- a/arch/arm/mach-sa1100/assabet.c
+++ b/arch/arm/mach-sa1100/assabet.c
@@ -15,6 +15,7 @@
 #include <linux/errno.h>
 #include <linux/gpio/gpio-reg.h>
 #include <linux/gpio/machine.h>
+#include <linux/gpio_keys.h>
 #include <linux/ioport.h>
 #include <linux/platform_data/sa11x0-serial.h>
 #include <linux/regulator/fixed.h>
@@ -479,6 +480,30 @@ static struct gpiod_lookup_table assabet_cf_vcc_gpio_table = {
        },
 };
 
+static struct gpio_keys_button assabet_keys_buttons[] = {
+       {
+               .gpio = 0,
+               .irq = IRQ_GPIO0,
+               .desc = "gpio0",
+               .wakeup = 1,
+               .can_disable = 1,
+               .debounce_interval = 5,
+       }, {
+               .gpio = 1,
+               .irq = IRQ_GPIO1,
+               .desc = "gpio1",
+               .wakeup = 1,
+               .can_disable = 1,
+               .debounce_interval = 5,
+       },
+};
+
+static const struct gpio_keys_platform_data assabet_keys_pdata = {
+       .buttons = assabet_keys_buttons,
+       .nbuttons = ARRAY_SIZE(assabet_keys_buttons),
+       .rep = 0,
+};
+
 static void __init assabet_init(void)
 {
        /*
@@ -533,6 +558,11 @@ static void __init assabet_init(void)
 
        }
 
+       platform_device_register_resndata(NULL, "gpio-keys", 0,
+                                         NULL, 0,
+                                         &assabet_keys_pdata,
+                                         sizeof(assabet_keys_pdata));
+
 #ifndef ASSABET_PAL_VIDEO
        sa11x0_register_lcd(&lq039q2ds54_info);
 #else