From: Fabrice Gasnier <fabrice.gasnier@st.com>
To: <broonie@kernel.org>, <lgirdwood@gmail.com>, <robh+dt@kernel.org>,
<alexandre.torgue@st.com>
Cc: <mark.rutland@arm.com>, <mcoquelin.stm32@gmail.com>,
<fabrice.gasnier@st.com>, <linux@armlinux.org.uk>,
<devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH v2 1/3] dt-bindings: regulator: Add STM32 Voltage Reference Buffer
Date: Wed, 30 Aug 2017 17:55:27 +0200 [thread overview]
Message-ID: <1504108529-31727-2-git-send-email-fabrice.gasnier@st.com> (raw)
In-Reply-To: <1504108529-31727-1-git-send-email-fabrice.gasnier@st.com>
Document STM32 VREFBUF (voltage reference buffer) which can be used as
voltage reference for ADCs, DACs and external components.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: Rob Herring <robh@kernel.org>
---
.../bindings/regulator/st,stm32-vrefbuf.txt | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
create mode 100644 Documentation/devicetree/bindings/regulator/st,stm32-vrefbuf.txt
diff --git a/Documentation/devicetree/bindings/regulator/st,stm32-vrefbuf.txt b/Documentation/devicetree/bindings/regulator/st,stm32-vrefbuf.txt
new file mode 100644
index 0000000..3944ee3
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/st,stm32-vrefbuf.txt
@@ -0,0 +1,20 @@
+STM32 VREFBUF - Voltage reference buffer
+
+Some STM32 devices embed a voltage reference buffer which can be used as
+voltage reference for ADCs, DACs and also as voltage reference for external
+components through the dedicated VREF+ pin.
+
+Required properties:
+- compatible: Must be "st,stm32-vrefbuf".
+- reg: Offset and length of VREFBUF register set.
+- clocks: Must contain an entry for peripheral clock.
+
+Example:
+ vrefbuf: regulator@58003C00 {
+ compatible = "st,stm32-vrefbuf";
+ reg = <0x58003C00 0x8>;
+ clocks = <&rcc VREF_CK>;
+ regulator-min-microvolt = <1500000>;
+ regulator-max-microvolt = <2500000>;
+ vdda-supply = <&vdda>;
+ };
--
1.9.1
next prev parent reply other threads:[~2017-08-30 15:56 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-30 15:55 [PATCH v2 0/3] Add support for STM32 vrefbuf regulator Fabrice Gasnier
2017-08-30 15:55 ` Fabrice Gasnier [this message]
2017-08-30 15:55 ` [PATCH v2 2/3] regulator: Add support for stm32-vrefbuf Fabrice Gasnier
2017-08-30 17:57 ` Applied "regulator: Add support for stm32-vrefbuf" to the regulator tree Mark Brown
2017-08-30 15:55 ` [PATCH v2 3/3] ARM: dts: stm32: add vrefbuf to stm32h743 Fabrice Gasnier
2017-10-06 13:01 ` Alexandre Torgue
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