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arm64: dts: rockchip: Enable regulators for Radxa E20C

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Enable pwm and fixed regulators for Radxa E20C. The pwm regulator is
used to power the CPU and GPU. Note that the LPDDR4 voltage is 1.1V.

Signed-off-by: Chukun Pan <amadeus@jmu.edu.cn>
Reviewed-by: Jonas Karlman <jonas@kwiboo.se>
Link: https://lore.kernel.org/r/20250401120020.976343-3-amadeus@jmu.edu.cn
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Chukun Pan 2025-04-01 20:00:20 +08:00 committed by Heiko Stuebner
parent 9e701ad7c3
commit c6599944af
1 changed files with 73 additions and 0 deletions
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73
arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts
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@ -9,6 +9,7 @@
#include <dt-bindings/input/input.h>
#include <dt-bindings/leds/common.h>
#include <dt-bindings/pwm/pwm.h>
#include "rk3528.dtsi"
/ {
@ -80,6 +81,26 @@ led-wan {
};
};
vdd_0v9: regulator-0v9-vdd {
compatible = "regulator-fixed";
regulator-name = "vdd_0v9";
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <900000>;
vin-supply = <&vcc5v0_sys>;
};
vcc_ddr: regulator-1v1-vcc-ddr {
compatible = "regulator-fixed";
regulator-name = "vcc_ddr";
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <1100000>;
regulator-max-microvolt = <1100000>;
vin-supply = <&vcc5v0_sys>;
};
vcc_1v8: regulator-1v8-vcc {
compatible = "regulator-fixed";
regulator-name = "vcc_1v8";
@ -108,6 +129,46 @@ vcc5v0_sys: regulator-5v0-vcc-sys {
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
};
vdd_arm: regulator-vdd-arm {
compatible = "pwm-regulator";
pwms = <&pwm1 0 5000 PWM_POLARITY_INVERTED>;
pwm-supply = <&vcc5v0_sys>;
regulator-name = "vdd_arm";
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <746000>;
regulator-max-microvolt = <1201000>;
regulator-settling-time-up-us = <250>;
};
vdd_logic: regulator-vdd-logic {
compatible = "pwm-regulator";
pwms = <&pwm2 0 5000 PWM_POLARITY_INVERTED>;
pwm-supply = <&vcc5v0_sys>;
regulator-name = "vdd_logic";
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <705000>;
regulator-max-microvolt = <1006000>;
regulator-settling-time-up-us = <250>;
};
};
&cpu0 {
cpu-supply = <&vdd_arm>;
};
&cpu1 {
cpu-supply = <&vdd_arm>;
};
&cpu2 {
cpu-supply = <&vdd_arm>;
};
&cpu3 {
cpu-supply = <&vdd_arm>;
};
&i2c1 {
@ -146,6 +207,18 @@ wan_led_g: wan-led-g {
};
};
&pwm1 {
pinctrl-names = "default";
pinctrl-0 = <&pwm1m0_pins>;
status = "okay";
};
&pwm2 {
pinctrl-names = "default";
pinctrl-0 = <&pwm2m0_pins>;
status = "okay";
};
&saradc {
vref-supply = <&vcc_1v8>;
status = "okay";