From: Matthias Brugger mbrugger@suse.com
stable inclusion form stable-v5.10.82 commit 109a63bb07f08b5fc0183f4837782288b99c6305 bugzilla: 185877 https://gitee.com/openeuler/kernel/issues/I4QU6V
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ 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@arm.com Signed-off-by: Matthias Brugger mbrugger@suse.com Link: https://lore.kernel.org/r/20210715164101.11486-1-matthias.bgg@kernel.org Signed-off-by: Heiko Stuebner heiko@sntech.de Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Chen Jun chenjun102@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts | 4 ---- 1 file changed, 4 deletions(-)
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts b/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts index 219b7507a10f..4297c1db5a41 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts @@ -379,10 +379,6 @@ }; };
-&cdn_dp { - status = "okay"; -}; - &cpu_b0 { cpu-supply = <&vdd_cpu_b>; };