ARM: at91/dt: at91-kizbox: leds related changes

This:
 * moves to pwm-leds using tcb-pwm driver and
 * renames leds to pwm:<color>:<function>.
Signed-off-by: Gaël PORTAY <g.portay@overkiz.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

arch/arm/boot/dts/at91-kizbox.dts

@@ -8,6 +8,7 @@
  */
 /dts-v1/;
 #include "at91sam9g20.dtsi"
+#include <dt-bindings/pwm/pwm.h>
 
 / {
 	model = "Overkiz Kizbox";
@@ -112,32 +113,46 @@ rtc: pcf8563@51 {
 		};
 	};
 
-	leds {
-		compatible = "gpio-leds";
+	pwm_leds {
+		compatible = "pwm-leds";
 
-		led1g {
-			label = "led1:green";
-			gpios = <&pioB 0 GPIO_ACTIVE_LOW>;
-			linux,default-trigger = "none";
+		network_green {
+			label = "pwm:green:network";
+			pwms = <&tcb_pwm 2 10000000 PWM_POLARITY_INVERTED>;
+			max-brightness = <255>;
+			linux,default-trigger = "default-on";
 		};
 
-		led1r {
-			label = "led1:red";
-			gpios = <&pioB 1 GPIO_ACTIVE_LOW>;
-			linux,default-trigger = "none";
+		network_red {
+			label = "pwm:red:network";
+			pwms = <&tcb_pwm 3 10000000 PWM_POLARITY_INVERTED>;
+			max-brightness = <255>;
+			linux,default-trigger = "default-on";
 		};
 
-		led2g {
-			label = "led2:green";
-			gpios = <&pioB 2 GPIO_ACTIVE_LOW>;
-			linux,default-trigger = "none";
-			default-state = "on";
+		user_green {
+			label = "pwm:green:user";
+			pwms = <&tcb_pwm 0 10000000 PWM_POLARITY_INVERTED>;
+			max-brightness = <255>;
+			linux,default-trigger = "default-on";
 		};
 
-		led2r {
-			label = "led2:red";
-			gpios = <&pioB 3 GPIO_ACTIVE_LOW>;
-			linux,default-trigger = "none";
+		user_red {
+			label = "pwm:red:user";
+			pwms = <&tcb_pwm 1 10000000 PWM_POLARITY_INVERTED>;
+			max-brightness = <255>;
+			linux,default-trigger = "default-on";
 		};
 	};
+
+	tcb_pwm: pwm {
+		compatible = "atmel,tcb-pwm";
+		#pwm-cells = <3>;
+		tc-block = <1>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_tcb1_tioa0
+			     &pinctrl_tcb1_tioa1
+			     &pinctrl_tcb1_tioa2
+			     &pinctrl_tcb1_tiob0>;
+	};
 };