how to make KEY_POWER work in terminal system

[xiangfu liu <xiangfu.z@gmail.com>]

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sorry forget the subject. send again

On 10/3/09, xiangfu liu <xiangfu.z@gmail.com> wrote:
> Hi
>
> I try to write gpio-keys driver a POWER button. attach is the patch.
> but when I press or hold the button. the system not poweroff. do nothing.
>
> I have change the KEY_POWER to KEY_A. then I press the button again.
> the terminal ouptu 'a' , it works. but why KEY_POWER?
>
> give me some tips
>
> thanks for help
>
> Best Regards
> Xiangfu
>

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diff --git a/arch/mips/include/asm/mach-jz4740/board-qi_lb60.h b/arch/mips/include/asm/mach-jz4740/board-qi_lb60.h
index 2c3260f..aa461bd 100644
--- a/arch/mips/include/asm/mach-jz4740/board-qi_lb60.h
+++ b/arch/mips/include/asm/mach-jz4740/board-qi_lb60.h
@@ -35,6 +35,7 @@
 #define GPIO_LCD_CS             JZ_GPIO_PORTC(21)
 #define GPIO_DISP_OFF_N         JZ_GPIO_PORTD(21)
 #define GPIO_PWM                JZ_GPIO_PORTD(27)
+#define GPIO_WAKEUP_N           JZ_GPIO_PORTD(29)
 
 #define GPIO_AMP_EN             JZ_GPIO_PORTD(4)
 
diff --git a/arch/mips/jz4740/board-qi_lb60.c b/arch/mips/jz4740/board-qi_lb60.c
index 127fad8..c6ef60c 100644
--- a/arch/mips/jz4740/board-qi_lb60.c
+++ b/arch/mips/jz4740/board-qi_lb60.c
@@ -97,6 +97,7 @@ static void __init board_gpio_setup(void)
 
 	__gpio_as_input(GPIO_DC_DETE_N);
 	__gpio_as_input(GPIO_CHARG_STAT_N);
+	__gpio_as_input(GPIO_WAKEUP_N);
 }
 
 void __init jz_board_setup(void)
diff --git a/arch/mips/jz4740/platform.c b/arch/mips/jz4740/platform.c
index dc7a832..16a0008 100644
--- a/arch/mips/jz4740/platform.c
+++ b/arch/mips/jz4740/platform.c
@@ -21,6 +21,8 @@
 #include <linux/spi/spi_gpio.h>
 #include <linux/power_supply.h>
 #include <linux/jz4740_batt.h>
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
 
 #include <asm/jzsoc.h>
 #include <asm/gpio.h>
@@ -492,6 +494,30 @@ static struct platform_device batt_gpio_device = {
 	},
 };
 
+/* GPIO Key: power */
+static const struct gpio_keys_button qi_lb60_gpio_keys_buttons[] = {
+	[0] = {
+		.code		= KEY_POWER,
+		.gpio		= GPIO_WAKEUP_N,
+		.active_low	= 1,
+		.desc		= "power button",
+	},
+};
+
+static const struct gpio_keys_platform_data qi_lb60_gpio_keys_data = {
+	.nbuttons =	ARRAY_SIZE(qi_lb60_gpio_keys_buttons),
+	.buttons =	qi_lb60_gpio_keys_buttons,
+};
+
+static struct platform_device qi_lb60_gpio_keys = {
+	.name =	"gpio-keys",
+	.id =		-1,
+	.dev = {
+		.platform_data = (void *) &qi_lb60_gpio_keys_data,
+	}
+};
+
+
 /* All */
 static struct platform_device *jz_platform_devices[] __initdata = {
 	&jz_usb_ohci_device,
@@ -506,6 +532,7 @@ static struct platform_device *jz_platform_devices[] __initdata = {
 	&jz_codec_device,
 	&jz_rtc_device,
 	&batt_gpio_device,
+	&qi_lb60_gpio_keys,
 };
 
 static int __init jz_platform_init(void)