On Tue, Aug 27, 2024 at 02:47:16PM +0800, Liu Ying wrote:
> 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@xxxxxxx>
> ---
> 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 {
>
> };
>
> + 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 @@ reg_usdhc2_vmmc: regulator-usdhc2 {
> 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 @@ ldo5: LDO5 {
> };
> };
> };
> +
> + 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>;
> + };
This part will be conflict with
https://lore.kernel.org/imx/172476183829.3553281.6314012832354346473.robh@xxxxxxxxxx/T/#m5e2189badf00653200421880c209312fc0aba7f3
Can I merge this to one set?
Frank
> };
>
> &lpi2c3 {
> --
> 2.34.1
>
