[PATCH] arm64: dts: rockchip: disable USB type-c DisplayPort
authorJian-Hong Pan <jhp@endlessos.org>
Thu, 24 Sep 2020 06:30:43 +0000 (14:30 +0800)
committerSalvatore Bonaccorso <carnil@debian.org>
Fri, 28 May 2021 08:31:38 +0000 (09:31 +0100)
The cdn-dp sub driver probes the device failed on PINEBOOK Pro.

kernel: cdn-dp fec00000.dp: [drm:cdn_dp_probe [rockchipdrm]] *ERROR* missing extcon or phy
kernel: cdn-dp: probe of fec00000.dp failed with error -22

Then, the device halts all of the DRM related device jobs. For example,
the operations: vop_component_ops, vop_component_ops and
rockchip_dp_component_ops cannot be bound to corresponding devices. So,
Xorg cannot find the correct DRM device.

The USB type-C DisplayPort does not work for now. So, disable the
DisplayPort node until the type-C phy work has been done.

Link: https://patchwork.kernel.org/patch/11794141/#23639877
Signed-off-by: Jian-Hong Pan <jhp@endlessos.org>
Gbp-Pq: Topic features/arm64
Gbp-Pq: Name arm64-dts-rockchip-disable-USB-type-c-DisplayPort.patch

arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts

index 219b7507a10fb7732f1a1cbc56cc52c07ef0893b..45769764425da8af0f63b8f5c5b43d5e92eb70cd 100644 (file)
 };
 
 &cdn_dp {
-       status = "okay";
+       status = "disabled";
 };
 
 &cpu_b0 {