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authorRonald Claveau <linux-kernel-dev@aliel.fr>2026-03-26 12:59:17 +0300
committerNeil Armstrong <neil.armstrong@linaro.org>2026-06-02 10:49:13 +0300
commit8c45bf9ae4efcecd2f91bc3e6f567280721fd0fd (patch)
treef079ab0f757620b86582e3c2cb8bc01264b2b104
parent2a2a7b9701a7972dc663d233c65f423088dd316b (diff)
downloadlinux-8c45bf9ae4efcecd2f91bc3e6f567280721fd0fd.tar.xz
arm64: dts: amlogic: t7: khadas-vim4: Add power regulators
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>
-rw-r--r--arch/arm64/boot/dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts89
1 files changed, 89 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts b/arch/arm64/boot/dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts
index f4c953034be3..003b3bcdaf2b 100644
--- a/arch/arm64/boot/dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts
+++ b/arch/arm64/boot/dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts
@@ -6,6 +6,8 @@
/dts-v1/;
#include "amlogic-t7.dtsi"
+#include <dt-bindings/gpio/amlogic,t7-periphs-pinctrl.h>
+#include <dt-bindings/gpio/gpio.h>
/ {
model = "Khadas VIM4";
@@ -47,6 +49,93 @@
#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 {