[PATCH] ARM: dts: imx: Power off display output on Data Modul i.MX8M Mini/Plus eDM SBC

[Marek Vasut]

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 <marex at denx.de>
---
Cc: Fabio Estevam <festevam at gmail.com>
Cc: Peng Fan <peng.fan at nxp.com>
Cc: Stefano Babic <sbabic at denx.de>
---
 .../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 144c42b2103..a235e088fa4 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 eafe9b9308c..a2b5976b6bd 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 {
-- 
2.43.0