[3/3] ARM: dts: stm32: add ADC analog switches syscfg on stm32mp157c
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Message ID 1560324276-681-4-git-send-email-fabrice.gasnier@st.com
State Superseded
Headers show
Series
  • STM32 ADC analog switches supply control
Related show

Commit Message

Fabrice Gasnier June 12, 2019, 7:24 a.m. UTC
On stm32mp157c, the ADC inputs are multiplexed with analog switches which
have reduced performances when their supply is below 2.7V (vdda by
default).
Add syscfg registers that can be used on stm32mp157c, to get full ADC
analog performances.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
---
 arch/arm/boot/dts/stm32mp157c.dtsi | 1 +
 1 file changed, 1 insertion(+)

Patch
diff mbox series

diff --git a/arch/arm/boot/dts/stm32mp157c.dtsi b/arch/arm/boot/dts/stm32mp157c.dtsi
index 2afeee6..64d71c9 100644
--- a/arch/arm/boot/dts/stm32mp157c.dtsi
+++ b/arch/arm/boot/dts/stm32mp157c.dtsi
@@ -856,6 +856,7 @@ 
 			clocks = <&rcc ADC12>, <&rcc ADC12_K>;
 			clock-names = "bus", "adc";
 			interrupt-controller;
+			st,syscfg = <&syscfg>;
 			#interrupt-cells = <1>;
 			#address-cells = <1>;
 			#size-cells = <0>;