Commit 37242cb9 authored by AngeloGioacchino Del Regno's avatar AngeloGioacchino Del Regno Committed by Matthias Brugger
Browse files

arm64: dts: mediatek: cherry: Add platform regulators layout and config 



Add the regulators layout for this platform, including the basic power
rails controlled by the EC (and/or always on).
Moreover, include the MT6359 PMIC devicetree and add some configuration
for its regulators, essential to keep the machine alive after booting.

Signed-off-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: default avatarNícolas F. R. A. Prado <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20220704101321.44835-4-angelogioacchino.delregno@collabora.com


Signed-off-by: default avatarMatthias Brugger <matthias.bgg@gmail.com>
parent 5eb2e303

arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi

+104 −0
Original line number Diff line number Diff line
@@ -5,6 +5,7 @@ 


#include <dt-bindings/gpio/gpio.h>

#include "mt8195.dtsi"

#include "mt6359.dtsi"



/ {

	aliases {
@@ -19,6 +20,109 @@ memory@40000000 { 
		device_type = "memory";

		reg = <0 0x40000000 0 0x80000000>;

	};



	/* system wide LDO 3.3V power rail */

	pp3300_z5: regulator-pp3300-ldo-z5 {

		compatible = "regulator-fixed";

		regulator-name = "pp3300_ldo_z5";

		regulator-always-on;

		regulator-boot-on;

		regulator-min-microvolt = <3300000>;

		regulator-max-microvolt = <3300000>;

		vin-supply = <&ppvar_sys>;

	};



	/* separately switched 3.3V power rail */

	pp3300_s3: regulator-pp3300-s3 {

		compatible = "regulator-fixed";

		regulator-name = "pp3300_s3";

		/* automatically sequenced by PMIC EXT_PMIC_EN2 */

		regulator-always-on;

		regulator-boot-on;

		regulator-min-microvolt = <3300000>;

		regulator-max-microvolt = <3300000>;

		vin-supply = <&pp3300_z2>;

	};



	/* system wide 3.3V power rail */

	pp3300_z2: regulator-pp3300-z2 {

		compatible = "regulator-fixed";

		regulator-name = "pp3300_z2";

		/* EN pin tied to pp4200_z2, which is controlled by EC */

		regulator-always-on;

		regulator-boot-on;

		regulator-min-microvolt = <3300000>;

		regulator-max-microvolt = <3300000>;

		vin-supply = <&ppvar_sys>;

	};



	/* system wide 4.2V power rail */

	pp4200_z2: regulator-pp4200-z2 {

		compatible = "regulator-fixed";

		regulator-name = "pp4200_z2";

		/* controlled by EC */

		regulator-always-on;

		regulator-boot-on;

		regulator-min-microvolt = <4200000>;

		regulator-max-microvolt = <4200000>;

		vin-supply = <&ppvar_sys>;

	};



	/* system wide switching 5.0V power rail */

	pp5000_s5: regulator-pp5000-s5 {

		compatible = "regulator-fixed";

		regulator-name = "pp5000_s5";

		/* controlled by EC */

		regulator-always-on;

		regulator-boot-on;

		regulator-min-microvolt = <5000000>;

		regulator-max-microvolt = <5000000>;

		vin-supply = <&ppvar_sys>;

	};



	/* system wide semi-regulated power rail from battery or USB */

	ppvar_sys: regulator-ppvar-sys {

		compatible = "regulator-fixed";

		regulator-name = "ppvar_sys";

		regulator-always-on;

		regulator-boot-on;

	};

};



/* for CPU-L */

&mt6359_vcore_buck_reg {

	regulator-always-on;

};



/* for CORE */

&mt6359_vgpu11_buck_reg {

	regulator-always-on;

};



&mt6359_vgpu11_sshub_buck_reg {

	regulator-always-on;

	regulator-min-microvolt = <550000>;

	regulator-max-microvolt = <550000>;

};



/* for CORE SRAM */

&mt6359_vpu_buck_reg {

	regulator-always-on;

};



&mt6359_vrf12_ldo_reg {

	regulator-always-on;

};



/* for GPU SRAM */

&mt6359_vsram_others_ldo_reg {

	regulator-always-on;

	regulator-min-microvolt = <750000>;

	regulator-max-microvolt = <750000>;

};



&mt6359_vufs_ldo_reg {

	regulator-always-on;

};



&uart0 {