From 1f25c75619d7fdacbaa8c2c9c152ebc9aec807b3 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Mon, 18 Dec 2023 19:02:14 +0100 Subject: [PATCH] ARM: dts: imx: Power off display output on Data Modul i.MX8M Mini/Plus eDM SBC Turn display connector power off on boot and reboot to prevent any bogus start up sequence of any panel potentially attached to the display connector. Signed-off-by: Marek Vasut --- .../dts/imx8mm-data-modul-edm-sbc-u-boot.dtsi | 49 +++++++++++++++++++ .../dts/imx8mp-data-modul-edm-sbc-u-boot.dtsi | 48 ++++++++++++++++++ 2 files changed, 97 insertions(+) diff --git a/arch/arm/dts/imx8mm-data-modul-edm-sbc-u-boot.dtsi b/arch/arm/dts/imx8mm-data-modul-edm-sbc-u-boot.dtsi index 144c42b210..a235e088fa 100644 --- a/arch/arm/dts/imx8mm-data-modul-edm-sbc-u-boot.dtsi +++ b/arch/arm/dts/imx8mm-data-modul-edm-sbc-u-boot.dtsi @@ -77,10 +77,59 @@ &gpio2 { bootph-pre-ram; + + dsi-reset-hog { + bootph-pre-ram; + gpio-hog; + output-high; + gpios = <2 GPIO_ACTIVE_LOW>; + line-name = "DSI_RESET_1V8#"; + }; + + + dsi-irq-hog { + bootph-pre-ram; + gpio-hog; + input; + gpios = <3 GPIO_ACTIVE_LOW>; + line-name = "DSI_IRQ_1V8#"; + }; + + graphics-prsnt-hog { + bootph-pre-ram; + gpio-hog; + input; + gpios = <7 GPIO_ACTIVE_LOW>; + line-name = "GRAPHICS_PRSNT_1V8#"; + }; }; &gpio3 { bootph-pre-ram; + + bl-enable-hog { + bootph-pre-ram; + gpio-hog; + output-low; + gpios = <0 GPIO_ACTIVE_HIGH>; + line-name = "BL_ENABLE_1V8"; + }; + + tft-enable-hog { + bootph-pre-ram; + gpio-hog; + output-low; + gpios = <6 GPIO_ACTIVE_HIGH>; + line-name = "TFT_ENABLE_1V8"; + }; + + graphics-gpio0-hog { + bootph-pre-ram; + gpio-hog; + input; + gpios = <7 GPIO_ACTIVE_HIGH>; + line-name = "GRAPHICS_GPIO0_1V8"; + }; }; &gpio4 { diff --git a/arch/arm/dts/imx8mp-data-modul-edm-sbc-u-boot.dtsi b/arch/arm/dts/imx8mp-data-modul-edm-sbc-u-boot.dtsi index eafe9b9308..a2b5976b6b 100644 --- a/arch/arm/dts/imx8mp-data-modul-edm-sbc-u-boot.dtsi +++ b/arch/arm/dts/imx8mp-data-modul-edm-sbc-u-boot.dtsi @@ -67,10 +67,58 @@ &gpio3 { bootph-pre-ram; + + bl-enable-hog { + bootph-pre-ram; + gpio-hog; + output-low; + gpios = <0 GPIO_ACTIVE_HIGH>; + line-name = "BL_ENABLE_1V8"; + }; + + tft-enable-hog { + bootph-pre-ram; + gpio-hog; + output-low; + gpios = <6 GPIO_ACTIVE_HIGH>; + line-name = "TFT_ENABLE_1V8"; + }; + + graphics-gpio0-hog { + bootph-pre-ram; + gpio-hog; + input; + gpios = <7 GPIO_ACTIVE_HIGH>; + line-name = "GRAPHICS_GPIO0_1V8"; + }; }; &gpio4 { bootph-pre-ram; + + dsi-reset-hog { + bootph-pre-ram; + gpio-hog; + output-high; + gpios = <0 GPIO_ACTIVE_LOW>; + line-name = "DSI_RESET_1V8#"; + }; + + graphics-prsnt-hog { + bootph-pre-ram; + gpio-hog; + input; + gpios = <18 GPIO_ACTIVE_LOW>; + line-name = "GRAPHICS_PRSNT_1V8#"; + }; + + dsi-irq-hog { + bootph-pre-ram; + gpio-hog; + input; + gpios = <19 GPIO_ACTIVE_LOW>; + line-name = "DSI_IRQ_1V8#"; + }; }; &gpio5 { -- 2.39.5