bcm53xx: early buttons support (without interrupts)

Signed-off-by: Rafał Miłecki <[email protected]>

SVN-Revision: 42718

target/linux/bcm53xx/Makefile

@@ -25,6 +25,7 @@ endef
 KERNELNAME:="zImage dtbs"
 
 DEFAULT_PACKAGES += swconfig wpad-mini nvram \
+	kmod-gpio-button-hotplug \
 	kmod-leds-gpio kmod-ledtrig-default-on kmod-ledtrig-timer
 
 $(eval $(call BuildTarget))

target/linux/bcm53xx/patches-3.14/301-ARM-BCM5301X-Add-buttons-support-for-Netgear-R6250.patch

@@ -0,0 +1,66 @@
+From e1b44fc2e3cf76be1213bde07fc37c47eff39158 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <[email protected]>
+Date: Thu, 2 Oct 2014 13:49:13 +0200
+Subject: [PATCH] ARM: BCM5301X: Add buttons support for Netgear R6250
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+We use "gpio-keys-polled" for now, as ChipCommon/GPIO interrupts are
+not implemented yet.
+
+Signed-off-by: Rafał Miłecki <[email protected]>
+---
+ arch/arm/boot/dts/bcm4708-netgear-r6250.dts | 25 +++++++++++++++++++++++++
+ arch/arm/boot/dts/bcm5301x.dtsi             |  1 +
+ 2 files changed, 26 insertions(+)
+
+diff --git a/arch/arm/boot/dts/bcm4708-netgear-r6250.dts b/arch/arm/boot/dts/bcm4708-netgear-r6250.dts
+index 58d999d..c5e51e5 100644
+--- a/arch/arm/boot/dts/bcm4708-netgear-r6250.dts
++++ b/arch/arm/boot/dts/bcm4708-netgear-r6250.dts
+@@ -66,4 +66,29 @@
+ 			linux,default-trigger = "default-off";
+ 		};
+ 	};
++
++	gpio-keys {
++		compatible = "gpio-keys-polled";
++		#address-cells = <1>;
++		#size-cells = <0>;
++		poll-interval = <200>;
++
++		wps {
++			label = "WPS";
++			linux,code = <KEY_WPS_BUTTON>;
++			gpios = <&chipcommon 4 GPIO_ACTIVE_LOW>;
++		};
++
++		rfkill {
++			label = "WiFi";
++			linux,code = <KEY_RFKILL>;
++			gpios = <&chipcommon 5 GPIO_ACTIVE_LOW>;
++		};
++
++		restart {
++			label = "Reset";
++			linux,code = <KEY_RESTART>;
++			gpios = <&chipcommon 6 GPIO_ACTIVE_LOW>;
++		};
++	};
+ };
+diff --git a/arch/arm/boot/dts/bcm5301x.dtsi b/arch/arm/boot/dts/bcm5301x.dtsi
+index dbcd7a3..54fe4d0 100644
+--- a/arch/arm/boot/dts/bcm5301x.dtsi
++++ b/arch/arm/boot/dts/bcm5301x.dtsi
+@@ -9,6 +9,7 @@
+  */
+ 
+ #include <dt-bindings/gpio/gpio.h>
++#include <dt-bindings/input/input.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include "skeleton.dtsi"
+-- 
+1.8.4.5
+