Commit 36591b7d authored by Mihai Sain's avatar Mihai Sain Committed by Claudiu Beznea
Browse files

ARM: dts: microchip: sam9x75_curiosity: Add power monitor support 



Add PAC1934 support in order to monitor the board power consumption.
Device is connected on flexcom7 in twi mode.

[root@SAM9X75 ~]$ awk -f pac1934.awk
VDD3V3 current:   10.675 mA, voltage: 3295.41 mV
VDDOUT4 current:  5.7625 mA, voltage: 1196.78 mV
VDDCORE current: 115.442 mA, voltage: 1243.65 mV
VDDIODDR current: 29.585 mA, voltage: 1345.21 mV

Signed-off-by: default avatarMihai Sain <mihai.sain@microchip.com>
Link: https://lore.kernel.org/r/20241122080523.3941-3-mihai.sain@microchip.com


[claudiu.beznea: s/VDDOUT4/DCDC4 to comply with schematics]
Signed-off-by: default avatarClaudiu Beznea <claudiu.beznea@tuxon.dev>
parent 18dd1252

arch/arm/boot/dts/microchip/at91-sam9x75_curiosity.dts

+52 −0
Original line number Diff line number Diff line
@@ -198,6 +198,52 @@ regulator-state-standby { 
	};

};



&flx7 {

	atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_TWI>;

	status = "okay";

};



&i2c7 {

	dmas = <0>, <0>;

	i2c-analog-filter;

	i2c-digital-filter;

	i2c-digital-filter-width-ns = <35>;

	pinctrl-names = "default";

	pinctrl-0 = <&pinctrl_flx7_default>;

	status = "okay";



	power-monitor@10 {

		compatible = "microchip,pac1934";

		reg = <0x10>;

		#address-cells = <1>;

		#size-cells = <0>;



		channel@1 {

			reg = <0x1>;

			shunt-resistor-micro-ohms = <10000>;

			label = "VDD3V3";

		};



		channel@2 {

			reg = <0x2>;

			shunt-resistor-micro-ohms = <10000>;

			label = "DCDC4";

		};



		channel@3 {

			reg = <0x3>;

			shunt-resistor-micro-ohms = <10000>;

			label = "VDDCORE";

		};



		channel@4 {

			reg = <0x4>;

			shunt-resistor-micro-ohms = <10000>;

			label = "VDDIODDR";

		};

	};

};



&i2s {

	pinctrl-names = "default";

	pinctrl-0 = <&pinctrl_i2s_default>;
@@ -231,6 +277,12 @@ pinctrl_flx6_default: flx6-default { 
				<AT91_PIOA 24 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>,

				<AT91_PIOA 25 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>;

		};



		pinctrl_flx7_default: flx7-default {

			atmel,pins =

				<AT91_PIOC 0 AT91_PERIPH_C AT91_PINCTRL_PULL_UP>,

				<AT91_PIOC 1 AT91_PERIPH_C AT91_PINCTRL_PULL_UP>;

		};

	};



	gpio-keys {