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charset="utf-8" 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 --- This patch is based on next-20240826. .../boot/dts/freescale/imx93-11x11-evk.dts | 30 +++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts b/arch/arm64= /boot/dts/freescale/imx93-11x11-evk.dts index 60eb64761392..8d036b3962e9 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 @@ vdevbuffer: vdevbuffer@a4020000 { =20 }; =20 + reg_vdd_12v: regulator-vdd-12v { + compatible =3D "regulator-fixed"; + regulator-name =3D "VDD_12V"; + regulator-min-microvolt =3D <12000000>; + regulator-max-microvolt =3D <12000000>; + gpio =3D <&pcal6524 14 GPIO_ACTIVE_HIGH>; + enable-active-high; + }; + reg_vref_1v8: regulator-adc-vref { compatible =3D "regulator-fixed"; regulator-name =3D "vref_1v8"; @@ -81,6 +90,17 @@ reg_usdhc2_vmmc: regulator-usdhc2 { enable-active-high; }; =20 + backlight_lvds: backlight-lvds { + compatible =3D "pwm-backlight"; + pwms =3D <&adp5585 0 100000 0>; + brightness-levels =3D <0 100>; + num-interpolated-steps =3D <100>; + default-brightness-level =3D <100>; + power-supply =3D <®_vdd_12v>; + enable-gpios =3D <&adp5585 9 GPIO_ACTIVE_HIGH>; + status =3D "disabled"; + }; + bt_sco_codec: bt-sco-codec { compatible =3D "linux,bt-sco"; #sound-dai-cells =3D <1>; @@ -302,6 +322,16 @@ ldo5: LDO5 { }; }; }; + + adp5585: io-expander@34 { + compatible =3D "adi,adp5585-00", "adi,adp5585"; + reg =3D <0x34>; + vdd-supply =3D <&buck4>; + gpio-controller; + #gpio-cells =3D <2>; + gpio-reserved-ranges =3D <5 1>; + #pwm-cells =3D <3>; + }; }; =20 &lpi2c3 { --=20 2.34.1