From: Jian-Hong Pan <jhp@endlessos.org>
Date: Thu, 24 Sep 2020 06:30:43 +0000 (+0800)
Subject: [PATCH] arm64: dts: rockchip: disable USB type-c DisplayPort
X-Git-Tag: archive/raspbian/5.10.40-1+rpi1^2~39
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=254daf84b58f6599e3e8ac64d5f7d844eafe7ed8;p=linux.git

[PATCH] arm64: dts: rockchip: disable USB type-c DisplayPort

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
---

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts b/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts
index 219b7507a10..45769764425 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts
@@ -380,7 +380,7 @@
 };
 
 &cdn_dp {
-	status = "okay";
+	status = "disabled";
 };
 
 &cpu_b0 {