diff options
| author | Mihai Sain <mihai.sain@microchip.com> | 2025-02-11 16:33:02 +0200 |
|---|---|---|
| committer | Claudiu Beznea <claudiu.beznea@tuxon.dev> | 2025-02-17 11:13:47 +0200 |
| commit | 2e60cf9d46dfdd6bc65f1eeeb4af725623fbe94c (patch) | |
| tree | 36abcad993c0ec9d46fb05884bda31fef3757bd0 | |
| parent | afd0fa0834ab7def410d2f92cda9464000fdf1e1 (diff) | |
ARM: dts: microchip: sama7d65_curiosity: Add power monitor support
Add PAC1934 support in order to monitor the board power consumption.
Device is connected on flexcom10 in twi mode.
[root@SAMA7D65 ~]$ awk -f pac1934.awk
VDD3V3 current: 146.173 mA, voltage: 3302.73 mV
VDDIODDR current: 62.1356 mA, voltage: 1353.96 mV
VDDCORE current: 242.248 mA, voltage: 1204.36 mV
VDDCPU current: 213.565 mA, voltage: 1303.05 mV
Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
Link: https://lore.kernel.org/r/20250211143302.4102-3-mihai.sain@microchip.com
[claudiu.beznea: kept pinctrl nodes alphanumerically sorted in the
pinctrl container]
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
| -rw-r--r-- | arch/arm/boot/dts/microchip/at91-sama7d65_curiosity.dts | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/microchip/at91-sama7d65_curiosity.dts b/arch/arm/boot/dts/microchip/at91-sama7d65_curiosity.dts index 0f86360fb733..545cfcc57e30 100644 --- a/arch/arm/boot/dts/microchip/at91-sama7d65_curiosity.dts +++ b/arch/arm/boot/dts/microchip/at91-sama7d65_curiosity.dts @@ -43,11 +43,63 @@ status = "okay"; }; +&flx10 { + atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_TWI>; + status = "okay"; +}; + +&i2c10 { + dmas = <0>, <0>; + i2c-analog-filter; + i2c-digital-filter; + i2c-digital-filter-width-ns = <35>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2c10_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 = <47000>; + label = "VDD3V3"; + }; + + channel@2 { + reg = <0x2>; + shunt-resistor-micro-ohms = <47000>; + label = "VDDIODDR"; + }; + + channel@3 { + reg = <0x3>; + shunt-resistor-micro-ohms = <47000>; + label = "VDDCORE"; + }; + + channel@4 { + reg = <0x4>; + shunt-resistor-micro-ohms = <47000>; + label = "VDDCPU"; + }; + }; +}; + &main_xtal { clock-frequency = <24000000>; }; &pioa { + pinctrl_i2c10_default: i2c10-default{ + pinmux = <PIN_PB19__FLEXCOM10_IO1>, + <PIN_PB20__FLEXCOM10_IO0>; + bias-pull-up; + }; + pinctrl_sdmmc1_default: sdmmc1-default { cmd-data { pinmux = <PIN_PB22__SDMMC1_CMD>, |