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arm64: dts: amlogic: t7: khadas-vim4: add PWM-driven status LED

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The VIM4 board exposes a status LED wired to the PWM_AO_C_D output.
Enable the pwm_ao_cd controller with its pinmux, and declare a
pwm-leds node with a heartbeat trigger.

Signed-off-by: Ronald Claveau <linux-kernel-dev@aliel.fr>
Link: https://patch.msgid.link/20260513-add-kvim4-sysled-v2-3-3ec9779e8875@aliel.fr
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
This commit is contained in:
Ronald Claveau 2026-05-13 12:43:55 +02:00 committed by Neil Armstrong
parent a63d58bd2d
commit 61ba02ca47
1 changed files with 16 additions and 0 deletions
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16
arch/arm64/boot/dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts
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@ -53,6 +53,16 @@ dc_in: regulator-dc-in {
regulator-always-on;
};
pwm-leds {
compatible = "pwm-leds";
status {
linux,default-trigger="heartbeat";
max-brightness = <255>;
pwms = <&pwm_ao_cd 0 30040 0>;
};
};
sd_3v3: regulator-sdcard-3v3 {
compatible = "regulator-fixed";
regulator-name = "SD_3V3";
@ -163,6 +173,12 @@ &pwm_ab {
pinctrl-names = "default";
};
&pwm_ao_cd {
status = "okay";
pinctrl-0 = <&pwm_ao_c_d_pins>;
pinctrl-names = "default";
};
/* SDIO */
&sd_emmc_a {
status = "okay";