ARM: mvebu: add user LED support of Armada 370 RD

The Armada 370 RD has a GPIO controlled LED connected on MPP32, so
this commit adds the relevant hardware description to Armada 370 RD
Device Tree.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lkml.kernel.org/r/1410429419-29820-3-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

1 files changed, 17 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/armada-370-rd.dts b/arch/arm/boot/dts/armada-370-rd.dts
index ea61d8c05240..14c66e4adbc0 100644
--- a/arch/arm/boot/dts/armada-370-rd.dts
+++ b/arch/arm/boot/dts/armada-370-rd.dts
@@ -55,6 +55,11 @@
                                         marvell,pins = "mpp8";
                                         marvell,function = "gpio";
                                 };
+
+                                led_pins: led-pins {
+                                        marvell,pins = "mpp32";
+                                        marvell,function = "gpio";
+                                };
                         };
 
                         serial@12000 {
@@ -125,6 +130,18 @@
                                 pinctrl-names = "default";
                         };
 
+                        gpio_leds {
+                                compatible = "gpio-leds";
+                                pinctrl-names = "default";
+                                pinctrl-0 = <&led_pins>;
+
+                                sw_led {
+                                        label = "370rd:green:sw";
+                                        gpios = <&gpio1 0 GPIO_ACTIVE_LOW>;
+                                        default-state = "keep";
+                                };
+                        };
+
                         nand@d0000 {
                                 status = "okay";
                                 num-cs = <1>;