From: Jayesh Choudhary Date: Thu, 1 Feb 2024 14:23:08 +0000 (+0530) Subject: arm64: dts: ti: k3-am69-sk: remove assigned-clock-parents for unused VP X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=cfdb4f7ffdb855c1a3d274dc7757e780dcbf2d55;p=linux.git arm64: dts: ti: k3-am69-sk: remove assigned-clock-parents for unused VP VP2 and VP3 are unused video ports and VP3 share the same parent clock as VP1 causing issue with pixel clock setting for HDMI (VP1). The current DM firmware does not support changing parent clock if it is shared by another component. It returns 0 for the determine_rate query before causing set_rate to set the clock at default maximum of 1.8GHz which is a lot more than the maximum frequency videoports can support (600MHz) causing SYNC LOST issues. So remove the parent clocks for unused VPs to avoid conflict. Fixes: 6f8605fd7d11 ("arm64: dts: ti: k3-am69-sk: Add DP and HDMI support") Reported-by: Nishanth Menon Signed-off-by: Jayesh Choudhary Reviewed-by: Tomi Valkeinen Reviewed-by: Aradhya Bhatia Tested-by: Enric Balletbo i Serra Link: https://lore.kernel.org/r/20240201142308.4954-1-j-choudhary@ti.com Signed-off-by: Vignesh Raghavendra --- diff --git a/arch/arm64/boot/dts/ti/k3-am69-sk.dts b/arch/arm64/boot/dts/ti/k3-am69-sk.dts index e73f714b1230c..988d7d83c6a79 100644 --- a/arch/arm64/boot/dts/ti/k3-am69-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am69-sk.dts @@ -919,13 +919,9 @@ pinctrl-names = "default"; pinctrl-0 = <&dss_vout0_pins_default>; assigned-clocks = <&k3_clks 218 2>, - <&k3_clks 218 5>, - <&k3_clks 218 14>, - <&k3_clks 218 18>; + <&k3_clks 218 5>; assigned-clock-parents = <&k3_clks 218 3>, - <&k3_clks 218 7>, - <&k3_clks 218 16>, - <&k3_clks 218 22>; + <&k3_clks 218 7>; }; &serdes_wiz4 {