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| author | Sourav Poddar <sourav.poddar@ti.com> | 2013-12-19 13:33:34 +0100 |
|---|---|---|
| committer | Benoit Cousson <bcousson@baylibre.com> | 2014-03-02 18:36:50 +0100 |
| commit | 2e3a9385d7b40e2f094f03a79c7b3930002aac17 (patch) | |
| tree | ae50a850e221f39f0f341d42eca039eb52157d34 | |
| parent | ARM: dts: am4372: Add pwm-cells property for ecap device. (diff) | |
| download | linux-2e3a9385d7b40e2f094f03a79c7b3930002aac17.tar.xz linux-2e3a9385d7b40e2f094f03a79c7b3930002aac17.zip | |
ARM: dts: am43x-epos-evm: Add pwm backlight support.
Add pwm backlight support for am43x epos evm.
Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
| -rw-r--r-- | 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 fbf9c4c7a94f..0899c5fa8824 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"; @@ -79,6 +80,12 @@ 0x18c (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0) /* i2c0_scl.i2c0_scl */ >; }; + + ecap0_pins: backlight_pins { + pinctrl-single,pins = < + 0x164 MUX_MODE0 /* eCAP0_in_PWM0_out.eCAP0_in_PWM0_out MODE0 */ + >; + }; }; matrix_keypad: matrix_keypad@0 { @@ -113,6 +120,13 @@ 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 { @@ -184,3 +198,13 @@ &gpio3 { status = "okay"; }; + +&epwmss0 { + status = "okay"; +}; + +&ecap0 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&ecap0_pins>; +}; |