diff options
| author | Mihai Sain <mihai.sain@microchip.com> | 2024-11-22 10:05:23 +0200 |
|---|---|---|
| committer | Claudiu Beznea <claudiu.beznea@tuxon.dev> | 2024-12-17 10:09:44 +0200 |
| commit | 36591b7dac851cfefd26d4f3782c4952e42e3418 (patch) | |
| tree | e87f359220ada768e57710cafa4f3e7e5af1b50a | |
| parent | 18dd125299d43cdb3191380e5b73333f770d0aa6 (diff) | |
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: Mihai 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: Claudiu Beznea <claudiu.beznea@tuxon.dev>
| -rw-r--r-- | arch/arm/boot/dts/microchip/at91-sam9x75_curiosity.dts | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/microchip/at91-sam9x75_curiosity.dts b/arch/arm/boot/dts/microchip/at91-sam9x75_curiosity.dts index d453800f8e35..1a6a909a5043 100644 --- a/arch/arm/boot/dts/microchip/at91-sam9x75_curiosity.dts +++ b/arch/arm/boot/dts/microchip/at91-sam9x75_curiosity.dts @@ -198,6 +198,52 @@ }; }; +&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 @@ <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 { |