From f02a7a44f5bc286f215eaa4e0f464a5273d88daf Mon Sep 17 00:00:00 2001 From: Jayesh Choudhary Date: Wed, 13 Mar 2024 11:18:13 +0530 Subject: arm64: dts: ti: k3-j722s-evm: Add HDMI_LS_OE gpio-hog Add the gpio hog for HDMI_LS_OE for HDMI ESD device TPD12S016PWR. Without this signal pulled up, TPD12S016PWR is unable to pass through the I2C request to HDMI connector which results in EDID not being read. After that fallback mode 1024x768 and smaller resolutions are added as valid modes. Pull up the control pin HDMI_LS_OE to get EDID working. Signed-off-by: Jayesh Choudhary Reviewed-by: Udit Kumar --- arch/arm64/boot/dts/ti/k3-j722s-evm.dts | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts index b89841400cf1..26257e7989f4 100644 --- a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts +++ b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts @@ -526,6 +526,14 @@ output-low; line-name = "GPIO_OLDI_RSTn"; }; + + p05-hog { + /* P05 - HDMI_LS_OE */ + gpio-hog; + gpios = <5 GPIO_ACTIVE_HIGH>; + output-high; + line-name = "HDMI_LS_OE"; + }; }; sii9022: bridge-hdmi@3b { -- cgit v1.2.3