ar71xx: add support for WIFI button on tp-link tl-mr3220v2

The TP-LINK TL-MR3220 v2 has a button on the left side
labeled "WIFI". This is GPIO 24. This patch adds the
support for this button.

Signed-off-by: Vittorio Gambaletta <openwrt@vittgam.net>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
SVN-Revision: 36848

diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-wr741nd-v4.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-wr741nd-v4.c
index 7eb4d2fceb0c22f4e3f6f2e71d787a07bd076f80..851b7624ff2a881c8575d80de9460586f52c85c6 100644 (file)
--- a/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-wr741nd-v4.c
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-wr741nd-v4.c
@@ -34,6 +34,9 @@
 #define TL_WR741NDV4_GPIO_LED_LAN4     17
 #define TL_WR741NDV4_GPIO_LED_SYSTEM   27
 
+#define TL_MR3220V2_GPIO_BTN_WPS       11
+#define TL_MR3220V2_GPIO_BTN_WIFI      24
+
 #define TL_MR3220V2_GPIO_LED_3G                26
 #define TL_MR3220V2_GPIO_USB_POWER     8
 
@@ -99,7 +102,6 @@ static struct gpio_keys_button tl_wr741ndv4_gpio_keys[] __initdata = {
                .gpio           = TL_WR741NDV4_GPIO_BTN_RESET,
                .active_low     = 0,
        }, {
-               /* the WPS button is only present on the WR741ND v4 */
                .desc           = "WPS",
                .type           = EV_KEY,
                .code           = KEY_WPS_BUTTON,
@@ -109,6 +111,24 @@ static struct gpio_keys_button tl_wr741ndv4_gpio_keys[] __initdata = {
        }
 };
 
+static struct gpio_keys_button tl_mr3220v2_gpio_keys[] __initdata = {
+       {
+               .desc           = "WPS",
+               .type           = EV_KEY,
+               .code           = KEY_WPS_BUTTON,
+               .debounce_interval = TL_WR741NDV4_KEYS_DEBOUNCE_INTERVAL,
+               .gpio           = TL_MR3220V2_GPIO_BTN_WPS,
+               .active_low     = 0,
+       }, {
+               .desc           = "WIFI button",
+               .type           = EV_KEY,
+               .code           = KEY_RFKILL,
+               .debounce_interval = TL_WR741NDV4_KEYS_DEBOUNCE_INTERVAL,
+               .gpio           = TL_MR3220V2_GPIO_BTN_WIFI,
+               .active_low     = 0,
+       }
+};
+
 static void __init tl_ap121_setup(void)
 {
        u8 *mac = (u8 *) KSEG1ADDR(0x1f01fc00);
@@ -159,8 +179,8 @@ static void __init tl_mr3220v2_setup(void)
        ath79_register_leds_gpio(-1, ARRAY_SIZE(tl_wr741ndv4_leds_gpio),
                                 tl_wr741ndv4_leds_gpio);
        ath79_register_gpio_keys_polled(1, TL_WR741NDV4_KEYS_POLL_INTERVAL,
-                                       ARRAY_SIZE(tl_wr741ndv4_gpio_keys) - 1,
-                                       tl_wr741ndv4_gpio_keys);
+                                       ARRAY_SIZE(tl_mr3220v2_gpio_keys),
+                                       tl_mr3220v2_gpio_keys);
 }
 
 MIPS_MACHINE(ATH79_MACH_TL_MR3220_V2, "TL-MR3220-v2",