From d6d02bc6e80453ca004e101eae28d741bde54426 Mon Sep 17 00:00:00 2001 From: Fabrice Gasnier Date: Mon, 1 Jul 2019 10:14:22 +0200 Subject: dt-bindings: regulator: add support for the stm32-booster Document the 3.3V booster regulator embedded in stm32h7 and stm32mp1 devices, that can be used to supply ADC analog input switches. It's controlled by using system configuration registers (SYSCFG). Introduce two compatibles as the booster regulator is controlled by: - a unique register/bit in STM32H7 - a set/clear register pair in STM32MP1 Signed-off-by: Fabrice Gasnier Signed-off-by: Mark Brown --- .../devicetree/bindings/regulator/st,stm32-booster.txt | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 Documentation/devicetree/bindings/regulator/st,stm32-booster.txt (limited to 'Documentation/devicetree/bindings/regulator') diff --git a/Documentation/devicetree/bindings/regulator/st,stm32-booster.txt b/Documentation/devicetree/bindings/regulator/st,stm32-booster.txt new file mode 100644 index 000000000000..479ad4c8758e --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/st,stm32-booster.txt @@ -0,0 +1,18 @@ +STM32 BOOSTER - Booster for ADC analog input switches + +Some STM32 devices embed a 3.3V booster supplied by Vdda, that can be used +to supply ADC analog input switches. + +Required properties: +- compatible: Should be one of: + "st,stm32h7-booster" + "st,stm32mp1-booster" +- st,syscfg: Phandle to system configuration controller. +- vdda-supply: Phandle to the vdda input analog voltage. + +Example: + booster: regulator-booster { + compatible = "st,stm32mp1-booster"; + st,syscfg = <&syscfg>; + vdda-supply = <&vdda>; + }; -- cgit v1.2.3