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Date: Fri, 14 Oct 2022 11:26:46 +0200
From: Fabrice Gasnier <fabrice.gasnier@...s.st.com>
To: <alexandre.torgue@...s.st.com>, <robh+dt@...nel.org>,
<krzysztof.kozlowski+dt@...aro.org>
CC: <amelie.delaunay@...s.st.com>, <devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>,
<linux-stm32@...md-mailman.stormreply.com>,
<fabrice.gasnier@...s.st.com>
Subject: [PATCH 05/10] ARM: dts: stm32: add fixed regulators to support usb on stm32mp135f-dk
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@...s.st.com>
---
arch/arm/boot/dts/stm32mp135f-dk.dts | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/arch/arm/boot/dts/stm32mp135f-dk.dts b/arch/arm/boot/dts/stm32mp135f-dk.dts
index de341d17e87d..291f05a958fd 100644
--- a/arch/arm/boot/dts/stm32mp135f-dk.dts
+++ b/arch/arm/boot/dts/stm32mp135f-dk.dts
@@ -66,6 +66,22 @@ 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;
+ };
+
+ v3v3_sw: v3v3-sw {
+ compatible = "regulator-fixed";
+ regulator-name = "v3v3_sw";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
};
&i2c1 {
--
2.25.1
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