Signed-off-by: Weiqing Kong <weiqing.kong@xxxxxxxxxxxx> --- arch/arm/boot/dts/mt2701-evb.dts | 29 +++++++++++++++++++++++++++++ arch/arm/boot/dts/mt2701.dtsi | 9 +++++++++ 2 files changed, 38 insertions(+) diff --git a/arch/arm/boot/dts/mt2701-evb.dts b/arch/arm/boot/dts/mt2701-evb.dts index 082ca88..6d572f4 100644 --- a/arch/arm/boot/dts/mt2701-evb.dts +++ b/arch/arm/boot/dts/mt2701-evb.dts @@ -22,6 +22,35 @@ memory { reg = <0 0x80000000 0 0x40000000>; }; + + backlight_lcd: backlight_lcd { + compatible = "pwm-backlight"; + pwms = <&disp_bls 0 100000>; + brightness-levels = < + 0 16 32 48 64 80 96 112 + 128 144 160 176 192 208 224 240 + 255 + >; + default-brightness-level = <9>; + pinctrl-names = "default"; + pinctrl-0 = <&pwm_bls_gpio>; + }; +}; + +&disp_bls { + status = "okay"; +}; + +&mmsys { + status = "okay"; +}; + +&pio { + pwm_bls_gpio: pwm_bls_gpio { + pins_cmd_dat { + pinmux = <MT2701_PIN_208_AUD_EXT_CK1__FUNC_DISP_PWM>; + }; + }; }; &uart0 { diff --git a/arch/arm/boot/dts/mt2701.dtsi b/arch/arm/boot/dts/mt2701.dtsi index 42d5a37..dae55d6 100644 --- a/arch/arm/boot/dts/mt2701.dtsi +++ b/arch/arm/boot/dts/mt2701.dtsi @@ -234,6 +234,15 @@ status = "disabled"; }; + disp_bls: dispsys@1400a000 { + compatible = "mediatek,mt2701-disp-bls"; + reg = <0 0x1400a000 0 0x1000>; + #pwm-cells = <2>; + clocks = <&mmsys CLK_MM_MDP_BLS_26M>, <&mmsys CLK_MM_DISP_BLS>; + clock-names = "main", "mm"; + status = "disabled"; + }; + imgsys: syscon@15000000 { compatible = "mediatek,mt2701-imgsys", "syscon"; reg = <0 0x15000000 0 0x1000>; -- 1.8.1.1.dirty -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html