From: Sourav Poddar Date: Sat, 5 Oct 2013 05:19:46 +0530 <sourav.poddar@xxxxxx> Add pwm backlight support for am43x epos evm. Signed-off-by: Sourav Poddar <sourav.poddar@xxxxxx> --- arch/arm/boot/dts/am43x-epos-evm.dts | 24 ++++++++++++++++++++++++ 1 files changed, 24 insertions(+), 0 deletions(-) diff --git a/arch/arm/boot/dts/am43x-epos-evm.dts b/arch/arm/boot/dts/am43x-epos-evm.dts index a037a92..5521999 100644 --- a/arch/arm/boot/dts/am43x-epos-evm.dts +++ b/arch/arm/boot/dts/am43x-epos-evm.dts @@ -13,6 +13,7 @@ #include "am4372.dtsi" #include <dt-bindings/pinctrl/am43xx.h> #include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/pwm/pwm.h> / { model = "TI AM43x EPOS EVM"; @@ -90,6 +91,12 @@ 0x9c (PIN_INPUT_PULLUP | MUX_MODE3) >; }; + + ecap0_pins: backlight_pins { + pinctrl-single,pins = < + 0x164 MUX_MODE0 /* eCAP0_in_PWM0_out.eCAP0_in_PWM0_out MODE0 */ + >; + }; }; matrix_keypad: matrix_keypad@0 { @@ -124,6 +131,13 @@ 0x0203006c /* DOWN */ 0x03030069>; /* LEFT */ }; + + backlight { + compatible = "pwm-backlight"; + pwms = <&ecap0 0 50000 PWM_POLARITY_INVERTED>; + brightness-levels = <0 51 53 56 62 75 101 152 255>; + default-brightness-level = <8>; + }; }; &mmc1 { @@ -212,3 +226,13 @@ spi-rx-bus-width = <4>; }; }; + +&epwmss0 { + status = "okay"; +}; + +&ecap0 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&ecap0_pins>; +}; -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html