Siva Mahadevan <me@xxxxxxxxxxxx> 於 2021年10月25日 週一 上午5:17寫道： > > Jian-Hong Pan wrote: > > 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@xxxxxxxxxxxxx> > > --- > > arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts b/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts > > index 06d48338c836..d624c595c533 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 @@ mains_charger: dc-charger { > > }; > > > > &cdn_dp { > > - status = "okay"; > > + status = "disabled"; > > }; > > > > &cpu_b0 { > > -- > > 2.28.0 > > I saw a similar patch posted at https://lkml.org/lkml/2021/7/15/752. I > was wondering if one of these patches will be submitted to mainline, or > what the status on this patch is. I can confirm that this does solve > the issue on my Pinebook Pro. Will this go forward? Notice that commit ("arm64: dts: rockchip: Disable CDN DP on Pinebook Pro") [1] is already in linux-next. [1] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=next-20211022&id=2513fa5c25d42f55ca5f0f0ab247af7c9fbfa3b1 Jian-Hong Pan
