[PATCH] ARM: dts: stm32: lxa-tac: drive powerboard lines as open-drain

[Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>]

From: Leonard Göhrs <l.goehrs@xxxxxxxxxxxxxx>

This results in a slight improvement in EMI performance due to the lines
no longer being driven by the somewhat noisy VDD_IO supply of the SoM.

Signed-off-by: Leonard Göhrs <l.goehrs@xxxxxxxxxxxxxx>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
---
 arch/arm/boot/dts/st/stm32mp157c-lxa-tac-gen2.dts | 2 +-
 arch/arm/boot/dts/st/stm32mp15xc-lxa-tac.dtsi     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/st/stm32mp157c-lxa-tac-gen2.dts b/arch/arm/boot/dts/st/stm32mp157c-lxa-tac-gen2.dts
index 8a34d15e9005..4cc177031661 100644
--- a/arch/arm/boot/dts/st/stm32mp157c-lxa-tac-gen2.dts
+++ b/arch/arm/boot/dts/st/stm32mp157c-lxa-tac-gen2.dts
@@ -148,7 +148,7 @@ adc@0 {
 		compatible = "ti,lmp92064";
 		reg = <0>;
 
-		reset-gpios = <&gpioa 4 GPIO_ACTIVE_HIGH>;
+		reset-gpios = <&gpioa 4 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
 		shunt-resistor-micro-ohms = <15000>;
 		spi-max-frequency = <5000000>;
 		vdd-supply = <&reg_pb_3v3>;
diff --git a/arch/arm/boot/dts/st/stm32mp15xc-lxa-tac.dtsi b/arch/arm/boot/dts/st/stm32mp15xc-lxa-tac.dtsi
index f09b7c384bd9..188c9cfc7102 100644
--- a/arch/arm/boot/dts/st/stm32mp15xc-lxa-tac.dtsi
+++ b/arch/arm/boot/dts/st/stm32mp15xc-lxa-tac.dtsi
@@ -409,7 +409,7 @@ &sdmmc2 {
 &spi2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&spi2_pins_c>;
-	cs-gpios = <&gpiof 12 GPIO_ACTIVE_LOW>;
+	cs-gpios = <&gpiof 12 (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN)>;
 	status = "okay";
 };
 

base-commit: 4d5ab2376ec576af173e5eac3887ed0b51bd8566
-- 
2.42.0