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arm64: dts: imx93-11x11-evk: Add PWM backlight for "LVDS" connector

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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>
This commit is contained in:
Liu Ying 2024-08-27 14:47:16 +08:00 committed by Shawn Guo
parent 9454132128
commit 47ccd0f2df
1 changed files with 30 additions and 0 deletions
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30
arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
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@ -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 = <&reg_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 {