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ARM: dts: stm32: add fixed regulators to support usb on stm32mp135f-dk

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Add VDD_USB and 3V3_SW regulators on stm32mp135f-dk. Temporary add them
as fixed regulators, waiting for full SCMI regulators support.

This is a precursor patch to enable USB support on STM32MP13:
- VDD_USB supplies the STM32MP13 USB internals
- 3V3_SW supplies various peripherals, including the onboard HUB.
Note: USB support requires these regulators to be enabled before
entering the kernel.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
This commit is contained in:
Fabrice Gasnier 2022-10-14 16:15:04 +02:00 committed by Alexandre Torgue
parent 2a46bb66c4
commit 9ebf215fba
1 changed files with 16 additions and 0 deletions
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16
arch/arm/boot/dts/stm32mp135f-dk.dts
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@ -59,6 +59,14 @@ led-blue {
};
};
v3v3_sw: v3v3-sw {
compatible = "regulator-fixed";
regulator-name = "v3v3_sw";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
vdd_adc: vdd-adc {
compatible = "regulator-fixed";
regulator-name = "vdd_adc";
@ -74,6 +82,14 @@ vdd_sd: vdd-sd {
regulator-max-microvolt = <2900000>;
regulator-always-on;
};
vdd_usb: vdd-usb {
compatible = "regulator-fixed";
regulator-name = "vdd_usb";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
};
&adc_1 {