openwrt_chaos_calmer/target/linux/brcm63xx/patches-3.18/300-reset_buttons.patch

--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
@@ -10,6 +10,8 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
 #include <asm/addrspace.h>
 #include <bcm63xx_board.h>
 #include <bcm63xx_cpu.h>
@@ -26,6 +28,9 @@
 
 #define HCS_OFFSET_128K			0x20000
 
+#define BCM963XX_KEYS_POLL_INTERVAL	20
+#define BCM963XX_KEYS_DEBOUNCE_INTERVAL	(BCM963XX_KEYS_POLL_INTERVAL * 3)
+
 /*
  * known 3368 boards
  */
--- a/arch/mips/bcm63xx/boards/board_common.c
+++ b/arch/mips/bcm63xx/boards/board_common.c
@@ -12,6 +12,7 @@
 #include <linux/string.h>
 #include <linux/platform_device.h>
 #include <linux/ssb/ssb.h>
+#include <linux/gpio_keys.h>
 #include <asm/addrspace.h>
 #include <bcm63xx_board.h>
 #include <bcm63xx_cpu.h>
@@ -32,6 +33,8 @@
 
 #define PFX	"board: "
 
+#define BCM963XX_KEYS_POLL_INTERVAL	20
+
 static struct board_info board;
 
 /*
@@ -151,11 +154,23 @@ static struct platform_device bcm63xx_gp
 	.dev.platform_data	= &bcm63xx_led_data,
 };
 
+static struct gpio_keys_platform_data bcm63xx_gpio_keys_data = {
+	.poll_interval  = BCM963XX_KEYS_POLL_INTERVAL,
+};
+
+static struct platform_device bcm63xx_gpio_keys_device = {
+	.name		= "gpio-keys-polled",
+	.id		= 0,
+	.dev.platform_data = &bcm63xx_gpio_keys_data,
+};
+
 /*
  * third stage init callback, register all board devices.
  */
 int __init board_register_devices(void)
 {
+	int button_count = 0;
+
 	if (board.has_uart0)
 		bcm63xx_uart_register(0);
 
@@ -217,5 +232,16 @@ int __init board_register_devices(void)
 		gpio_request_one(board.ephy_reset_gpio,
 				board.ephy_reset_gpio_flags, "ephy-reset");
 
+	/* count number of BUTTONs defined by this device */
+	while (button_count < ARRAY_SIZE(board.buttons) && board.buttons[button_count].desc)
+		button_count++;
+
+	if (button_count) {
+		bcm63xx_gpio_keys_data.nbuttons = button_count;
+		bcm63xx_gpio_keys_data.buttons = board.buttons;
+
+		platform_device_register(&bcm63xx_gpio_keys_device);
+	}
+
 	return 0;
 }
--- a/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
+++ b/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
@@ -3,6 +3,7 @@
 
 #include <linux/types.h>
 #include <linux/gpio.h>
+#include <linux/gpio_keys.h>
 #include <linux/leds.h>
 #include <bcm63xx_dev_enet.h>
 #include <bcm63xx_dev_usb_usbd.h>
@@ -48,6 +49,9 @@ struct board_info {
 	/* GPIO LEDs */
 	struct gpio_led leds[5];
 
+	/* Buttons */
+	struct gpio_keys_button buttons[4];
+
 	/* External PHY reset GPIO */
 	unsigned int ephy_reset_gpio;