This is a note to let you know that I've just added the patch titled arm64: dts: rockchip: Disable CDN DP on Pinebook Pro to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: arm64-dts-rockchip-disable-cdn-dp-on-pinebook-pro.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit c5290a76f9db8bb8e336edcc60454258acb53f53 Author: Matthias Brugger <mbrugger@xxxxxxxx> Date: Thu Jul 15 18:41:01 2021 +0200 arm64: dts: rockchip: Disable CDN DP on Pinebook Pro [ Upstream commit 2513fa5c25d42f55ca5f0f0ab247af7c9fbfa3b1 ] The CDN DP needs a PHY and a extcon to work correctly. But no extcon is provided by the device-tree, which leads to an error: cdn-dp fec00000.dp: [drm:cdn_dp_probe [rockchipdrm]] *ERROR* missing extcon or phy cdn-dp: probe of fec00000.dp failed with error -22 Disable the CDN DP to make graphic work on the Pinebook Pro. Reported-by: Guillaume Gardet <guillaume.gardet@xxxxxxx> Signed-off-by: Matthias Brugger <mbrugger@xxxxxxxx> Link: https://lore.kernel.org/r/20210715164101.11486-1-matthias.bgg@xxxxxxxxxx Signed-off-by: Heiko Stuebner <heiko@xxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts b/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts index 2b5f001ff4a61..9e5d07f5712e6 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts @@ -385,10 +385,6 @@ mains_charger: dc-charger { }; }; -&cdn_dp { - status = "okay"; -}; - &cpu_b0 { cpu-supply = <&vdd_cpu_b>; };