[3/3] arm: at91: at91sam9m10g45ek: switch to PWM leds

Commit Message

Bo Shen Dec. 19, 2013, 3:59 a.m. UTC

The d6 and d7 is connected to PWM, we can use PWM to control it,
so switch to PWM leds.

Signed-off-by: Bo Shen <[e-mail]>
---
 arch/arm/boot/dts/at91sam9m10g45ek.dts |   25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

Patch

diff --git a/arch/arm/boot/dts/at91sam9m10g45ek.dts b/arch/arm/boot/dts/at91sam9m10g45ek.dts
index a4b00e5..96059e6 100644
--- a/arch/arm/boot/dts/at91sam9m10g45ek.dts
+++ b/arch/arm/boot/dts/at91sam9m10g45ek.dts
@@ -105,6 +105,14 @@ 
 							 AT91_PIOD 29 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;	/* PD29 gpio WP pin pull up */
 					};
 				};
+
+				pwm0 {
+					pinctrl_pwm_leds: pwm-led {
+						atmel,pins =
+							<AT91_PIOD 0  AT91_PERIPH_B AT91_PINCTRL_PULL_UP	/* PD0 periph B */
+							 AT91_PIOD 31 AT91_PERIPH_B AT91_PINCTRL_PULL_UP>;	/* PD31 periph B */
+					};
+				};
 			};
 
 			spi0: spi@fffa4000{
@@ -121,6 +129,13 @@ 
 				atmel,vbus-gpio = <&pioB 19 GPIO_ACTIVE_HIGH>;
 				status = "okay";
 			};
+
+			pwm0: pwm@fffb8000 {
+				status = "okay";
+
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_pwm_leds>;
+			};
 		};
 
 		nand0: nand@40000000 {
@@ -165,16 +180,22 @@ 
 			gpios = <&pioD 30 GPIO_ACTIVE_HIGH>;
 			linux,default-trigger = "heartbeat";
 		};
+	};
+
+	pwmleds {
+		compatible = "pwm-leds";
 
 		d6 {
 			label = "d6";
-			gpios = <&pioD 0 GPIO_ACTIVE_LOW>;
+			pwms = <&pwm0 3 5000 0>;
+			max-brightness = <255>;
 			linux,default-trigger = "nand-disk";
 		};
 
 		d7 {
 			label = "d7";
-			gpios = <&pioD 31 GPIO_ACTIVE_LOW>;
+			pwms = <&pwm0 1 5000 0>;
+			max-brightness = <255>;
 			linux,default-trigger = "mmc0";
 		};
 	};