[PATCH v2 6/6] ARM: OMAP2+: dts: cm-t335: add support for PWM backlight
From: Uri Mashiach <hidden>
Date: 2015-11-24 14:02:13
Also in:
linux-devicetree, linux-omap
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Ilya Ledvich <redacted> Add pinmux configuration for ECAP0 pin. Add node for PWM backlight device. Use PWM output from ecap0 as backlight source. Signed-off-by: Ilya Ledvich <redacted> Signed-off-by: Uri Mashiach <redacted> Acked-by: Igor Grinberg <redacted> --- v1 -> v2: integrate AM33XX_IOPAD macro in pinmux definitions arch/arm/boot/dts/am335x-cm-t335.dts | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+)
diff --git a/arch/arm/boot/dts/am335x-cm-t335.dts b/arch/arm/boot/dts/am335x-cm-t335.dts
index 9be0bfe..4939d82 100644
--- a/arch/arm/boot/dts/am335x-cm-t335.dts
+++ b/arch/arm/boot/dts/am335x-cm-t335.dts@@ -39,6 +39,13 @@ regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; }; + + backlight { + compatible = "pwm-backlight"; + pwms = <&ecap0 0 50000 0>; + brightness-levels = <0 51 53 56 62 75 101 152 255>; + default-brightness-level = <8>; + }; }; &am33xx_pinmux {
@@ -114,6 +121,13 @@ >; }; + ecap0_pins: pinmux_ecap0_pins { + pinctrl-single,pins = < + /* eCAP0_in_PWM0_out.eCAP0_in_PWM0_out MODE0 */ + AM33XX_IOPAD(0x964, 0x0) + >; + }; + cpsw_default: cpsw_default { pinctrl-single,pins = < /* Slave 1 */
@@ -223,6 +237,16 @@ }; }; +&epwmss0 { + status = "okay"; + + ecap0: ecap@48300100 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&ecap0_pins>; + }; +}; + &gpmc { status = "okay"; pinctrl-names = "default";
--
2.5.0