From: Liu Ying Date: Tue, 27 Aug 2024 06:47:16 +0000 (+0800) Subject: arm64: dts: imx93-11x11-evk: Add PWM backlight for "LVDS" connector X-Git-Tag: v6.12-rc1~188^2~21^2~24 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=47ccd0f2df482fb90ae8d2406e3f935a4e75535a;p=thirdparty%2Fkernel%2Flinux.git arm64: dts: imx93-11x11-evk: Add PWM backlight for "LVDS" connector J702 on i.MX93 11x11 EVK base board is a 40-pin connector labelled "LVDS". This connector supports PWM backlight with default 12V power supply and ADP5585 PWM controller. Add support for the backlight. Signed-off-by: Liu Ying Signed-off-by: Shawn Guo --- diff --git a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts b/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts index 60eb64761392e..8d036b3962e9d 100644 --- a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts @@ -62,6 +62,15 @@ }; + reg_vdd_12v: regulator-vdd-12v { + compatible = "regulator-fixed"; + regulator-name = "VDD_12V"; + regulator-min-microvolt = <12000000>; + regulator-max-microvolt = <12000000>; + gpio = <&pcal6524 14 GPIO_ACTIVE_HIGH>; + enable-active-high; + }; + reg_vref_1v8: regulator-adc-vref { compatible = "regulator-fixed"; regulator-name = "vref_1v8"; @@ -81,6 +90,17 @@ enable-active-high; }; + backlight_lvds: backlight-lvds { + compatible = "pwm-backlight"; + pwms = <&adp5585 0 100000 0>; + brightness-levels = <0 100>; + num-interpolated-steps = <100>; + default-brightness-level = <100>; + power-supply = <®_vdd_12v>; + enable-gpios = <&adp5585 9 GPIO_ACTIVE_HIGH>; + status = "disabled"; + }; + bt_sco_codec: bt-sco-codec { compatible = "linux,bt-sco"; #sound-dai-cells = <1>; @@ -302,6 +322,16 @@ }; }; }; + + adp5585: io-expander@34 { + compatible = "adi,adp5585-00", "adi,adp5585"; + reg = <0x34>; + vdd-supply = <&buck4>; + gpio-controller; + #gpio-cells = <2>; + gpio-reserved-ranges = <5 1>; + #pwm-cells = <3>; + }; }; &lpi2c3 {