From: Fabrice Gasnier <fabrice.gasnier@st.com>
To: <alexandre.torgue@st.com>, <mcoquelin.stm32@gmail.com>,
<linux@armlinux.org.uk>, <mark.rutland@arm.com>,
<robh+dt@kernel.org>
Cc: <devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH 3/3] ARM: dts: stm32: enable ADC on stm32f429i-eval board
Date: Fri, 2 Dec 2016 14:57:02 +0100 [thread overview]
Message-ID: <1480687022-12851-4-git-send-email-fabrice.gasnier@st.com> (raw)
In-Reply-To: <1480687022-12851-1-git-send-email-fabrice.gasnier@st.com>
Enable analog to digital converter on stm32f429i-eval board.
It has on-board potentimeter wired to ADC3 in8 analog pin and
uses fixed regulator to provide reference voltage.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
---
arch/arm/boot/dts/stm32429i-eval.dts | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/arch/arm/boot/dts/stm32429i-eval.dts b/arch/arm/boot/dts/stm32429i-eval.dts
index 13c7cd2..6be0a24 100644
--- a/arch/arm/boot/dts/stm32429i-eval.dts
+++ b/arch/arm/boot/dts/stm32429i-eval.dts
@@ -65,6 +65,20 @@
serial0 = &usart1;
};
+ regulators {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ reg_vref: regulator@0 {
+ compatible = "regulator-fixed";
+ reg = <0>;
+ regulator-name = "vref";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+ };
+
leds {
compatible = "gpio-leds";
green {
@@ -123,3 +137,14 @@
pinctrl-names = "default";
status = "okay";
};
+
+&adc {
+ pinctrl-names = "default";
+ pinctrl-0 = <&adc3_in8_pin>;
+ vref-supply = <®_vref>;
+ status = "okay";
+ adc3: adc@200 {
+ st,adc-channels = <8>;
+ status = "okay";
+ };
+};
--
1.9.1
next prev parent reply other threads:[~2016-12-02 13:59 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-02 13:56 [PATCH 0/3] Enable ADC on STM32 Fabrice Gasnier
2016-12-02 13:57 ` [PATCH 1/3] ARM: configs: stm32: enable ADC driver Fabrice Gasnier
2017-01-09 14:46 ` Alexandre Torgue
2016-12-02 13:57 ` [PATCH 2/3] ARM: dts: stm32: Add ADC support to stm32f429 Fabrice Gasnier
2017-01-09 14:46 ` Alexandre Torgue
2016-12-02 13:57 ` Fabrice Gasnier [this message]
2017-01-09 14:48 ` [PATCH 3/3] ARM: dts: stm32: enable ADC on stm32f429i-eval board Alexandre Torgue
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