diff options
| author | Adam Ford <aford173@gmail.com> | 2016-02-18 03:30:12 +0300 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2016-02-22 21:17:42 +0300 |
| commit | 730d7dcf03c0f276fc6435e69df75dacd57b55c7 (patch) | |
| tree | 3ba2abb020a40e655749bca7386954b0929d4b6b /arch/arm/boot | |
| parent | 05cf1e030b7860f2e8b729d8197c5992ce12977e (diff) | |
| download | linux-730d7dcf03c0f276fc6435e69df75dacd57b55c7.tar.xz | |
ARM: dts: omap3logic: Add PWM-Backlight
The backlight pin is shared with Timer 10 PWM. This patch allows the
pwm_bl driver to enable the pwm run by this timer to dim the backlight.
Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/boot')
| -rw-r--r-- | arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts index 874ce46cdc0a..6cbcce26eaca 100644 --- a/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts +++ b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts @@ -71,6 +71,15 @@ linux,default-trigger = "none"; }; }; + + pwm10: dmtimer-pwm@10 { + compatible = "ti,omap-dmtimer-pwm"; + pinctrl-names = "default"; + pinctrl-0 = <&pwm_pins>; + ti,timers = <&timer10>; + #pwm-cells = <3>; + }; + }; &vaux1 { @@ -168,13 +177,13 @@ }; bl: backlight { - compatible = "gpio-backlight"; + compatible = "pwm-backlight"; pinctrl-names = "default"; pinctrl-0 = <&backlight_pins>; - - gpios = <&gpio5 26 GPIO_ACTIVE_HIGH>, /* gpio_154 */ - <&gpio2 24 GPIO_ACTIVE_HIGH>; /* gpio_56 */ - default-on; + pwms = <&pwm10 0 5000000 0>; + brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>; + default-brightness-level = <7>; + enable-gpios = <&gpio5 26 GPIO_ACTIVE_HIGH>; /* gpio_154 */ }; }; @@ -196,6 +205,12 @@ >; }; + pwm_pins: pinmux_pwm_pins { + pinctrl-single,pins = < + OMAP3_CORE1_IOPAD(0x20B8, PIN_OUTPUT | PIN_OFF_OUTPUT_LOW | MUX_MODE3) /* gpmc_ncs5.gpt_10_pwm_evt */ + >; + }; + led_pins: pinmux_led_pins { pinctrl-single,pins = < OMAP3_CORE1_IOPAD(0x21d8, PIN_OUTPUT | MUX_MODE4) /* gpio_179 */ @@ -222,7 +237,6 @@ backlight_pins: pinmux_backlight_pins { pinctrl-single,pins = < - OMAP3_CORE1_IOPAD(0x20B8, PIN_OUTPUT | PIN_OFF_OUTPUT_LOW | MUX_MODE4) /* gpmc_ncs5.gpio_56 */ OMAP3_CORE1_IOPAD(0x2188, PIN_OUTPUT | PIN_OFF_OUTPUT_LOW | MUX_MODE4) /* mcbsp4_dx.gpio_154 */ >; }; |