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arm64: dts: amlogic: t7: khadas-vim4: Add power regulators

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Add voltage regulator nodes describing the VIM4 power tree,
required by peripheral nodes such as the SD card controller.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Ronald Claveau <linux-kernel-dev@aliel.fr>
Link: https://patch.msgid.link/20260326-add-emmc-t7-vim4-v5-6-d3f182b48e9d@aliel.fr
[narmstrong: squashed "Remove invalid property fix" from Ronald]
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
This commit is contained in:
Ronald Claveau 2026-03-26 10:59:17 +01:00 committed by Neil Armstrong
parent 2a2a7b9701
commit 8c45bf9ae4
1 changed files with 89 additions and 0 deletions
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89
arch/arm64/boot/dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts
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@ -6,6 +6,8 @@
/dts-v1/; /dts-v1/;
#include "amlogic-t7.dtsi" #include "amlogic-t7.dtsi"
#include <dt-bindings/gpio/amlogic,t7-periphs-pinctrl.h>
#include <dt-bindings/gpio/gpio.h>
/ { / {
model = "Khadas VIM4"; model = "Khadas VIM4";
@ -47,6 +49,93 @@ xtal: xtal-clk {
#clock-cells = <0>; #clock-cells = <0>;
}; };
dc_in: regulator-dc-in {
compatible = "regulator-fixed";
regulator-name = "DC_IN";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
regulator-always-on;
};
sd_3v3: regulator-sdcard-3v3 {
compatible = "regulator-fixed";
regulator-name = "SD_3V3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
vin-supply = <&vddao_3v3>;
gpio = <&gpio GPIOD_11 GPIO_ACTIVE_LOW>;
regulator-boot-on;
regulator-always-on;
};
vcc5v: regulator-vcc-5v {
compatible = "regulator-fixed";
regulator-name = "VCC5V";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
vin-supply = <&dc_in>;
gpio = <&gpio GPIOH_4 GPIO_ACTIVE_HIGH>;
enable-active-high;
};
vcc5v0_usb: regulator-vcc-usb {
compatible = "regulator-fixed";
regulator-name = "VCC5V0_USB";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
vin-supply = <&vcc5v>;
gpio = <&gpio GPIOY_5 GPIO_ACTIVE_HIGH>;
enable-active-high;
};
vddao_1v8: regulator-vddao-1v8 {
compatible = "regulator-fixed";
regulator-name = "VDDAO_1V8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
vin-supply = <&vddao_3v3>;
regulator-always-on;
};
vddao_3v3: regulator-vddao-3v3 {
compatible = "regulator-fixed";
regulator-name = "VDDAO_3V3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
vin-supply = <&dc_in>;
regulator-always-on;
};
vddio_1v8: regulator-vddio-1v8 {
compatible = "regulator-fixed";
regulator-name = "VDDIO_1V8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
vin-supply = <&vddio_3v3>;
regulator-always-on;
};
vddio_3v3: regulator-vddio-3v3 {
compatible = "regulator-fixed";
regulator-name = "VDDIO_3V3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
vin-supply = <&vddao_3v3>;
regulator-always-on;
};
vddio_c: regulator-gpio-c {
compatible = "regulator-gpio";
regulator-name = "VDDIO_C";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
vin-supply = <&vddio_3v3>;
gpios = <&gpio GPIOD_9 GPIO_ACTIVE_HIGH>;
states = <1800000 1
3300000 0>;
};
}; };
&uart_a { &uart_a {