diff options
| author | Liu Ying <victor.liu@nxp.com> | 2024-08-27 09:47:16 +0300 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2024-09-04 12:36:22 +0300 |
| commit | 47ccd0f2df482fb90ae8d2406e3f935a4e75535a (patch) | |
| tree | 5637f29aa0ccf9a6d8a52f391908693b8d1f5e49 /arch/arm64/boot/dts | |
| parent | 945413212894c703fe5ed20edef7e99bfd0cf932 (diff) | |
| download | linux-47ccd0f2df482fb90ae8d2406e3f935a4e75535a.tar.xz | |
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 <victor.liu@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch/arm64/boot/dts')
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts | 30 |
1 files changed, 30 insertions, 0 deletions
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 @@ }; + 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 { |