From 1d4e8b91d242c4afa1970ca6f7e850aab66bf452 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Leonard=20G=C3=B6hrs?= Date: Wed, 18 Oct 2023 22:31:55 +0200 Subject: [PATCH] ARM: dts: stm32: lxa-tac: drive powerboard lines as open-drain MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Uwe Kleine-König Signed-off-by: Alexandre Torgue --- 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 8a34d15e9005f..4cc1770316619 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 @@ 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 = <®_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 fc3a2386dbb90..7e835a7cf64a5 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 @@ baseboard_eeprom: &sip_eeprom { &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"; }; -- 2.30.2