| Message ID | 1499789590-13021-3-git-send-email-fabrice.gasnier@st.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/arch/arm/boot/dts/stm32h743i-eval.dts b/arch/arm/boot/dts/stm32h743i-eval.dts index c6effbb..6c07786 100644 --- a/arch/arm/boot/dts/stm32h743i-eval.dts +++ b/arch/arm/boot/dts/stm32h743i-eval.dts @@ -60,6 +60,24 @@ aliases { serial0 = &usart1; }; + + vdda: regulator-vdda { + compatible = "regulator-fixed"; + regulator-name = "vdda"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + }; +}; + +&adc_12 { + vref-supply = <&vdda>; + status = "okay"; + adc1: adc@0 { + /* potentiometer */ + st,adc-channels = <0>; + status = "okay"; + }; }; &clk_hse {
There's a potentiometer connected to ADC1 and ADC2 in0 on stm32h743i-eval board. - Add fixed-voltage 'vdda' regulator that supplies 'vref' pin. It's used as voltage reference for ADC and/or DAC. - Enable ADC1 in0 input (arbitrary choice: could be ADC2 as well). Note: No pinctrl is needed to use in0 dedicated analog input pin (e.g. ADC12_INP0). Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> --- arch/arm/boot/dts/stm32h743i-eval.dts | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)