From: Matthias Brugger <mbrugger@suse.com>

[ 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 <redacted>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Link: https://lore.kernel.org/r/20210715164101.11486-1-matthias.bgg@kernel.org (local)
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 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 219b7507a10fb..4297c1db5a413 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>;
 };

-- 
2.33.0