ARM: dts: dra7-evm: add gpio leds support

dra7-evm has 4 user gpio leds connected to PCF8575 GPIO pcf_lcd:
gpio@20 expander pins [4,5,6,7], so add corresponding DT nodes.

Do not enable any triggers by default as not all of them are proved
to work on -RT.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
index d40418c..9b4ce22 100644 (file)
--- a/arch/arm/boot/dts/dra7-evm.dts
+++ b/arch/arm/boot/dts/dra7-evm.dts
@@ -99,6 +99,33 @@
                        clocks = <&atl_clkin2_ck>;
                };
        };
+
+       leds {
+               compatible = "gpio-leds";
+               led@0 {
+                       label = "dra7:usr1";
+                       gpios = <&pcf_lcd 4 GPIO_ACTIVE_LOW>;
+                       default-state = "off";
+               };
+
+               led@1 {
+                       label = "dra7:usr2";
+                       gpios = <&pcf_lcd 5 GPIO_ACTIVE_LOW>;
+                       default-state = "off";
+               };
+
+               led@2 {
+                       label = "dra7:usr3";
+                       gpios = <&pcf_lcd 6 GPIO_ACTIVE_LOW>;
+                       default-state = "off";
+               };
+
+               led@3 {
+                       label = "dra7:usr4";
+                       gpios = <&pcf_lcd 7 GPIO_ACTIVE_LOW>;
+                       default-state = "off";
+               };
+       };
 };
 
 &dra7_pmx_core {