Am Mittwoch, 23. September 2020, 13:05:26 CEST schrieb Robin Murphy: > On 2020-09-23 07:59, 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 > > Wouldn't it make more sense to simply not enable the DisplayPort node in > the upstream DT, until the type-C phy work has been done to make it > usable at all? Or alternatively just disable the cdn-dp Rockchip driver in the kernel config, which results in it also not getting probed. > AIUI the "official" Manjaro kernel is carrying a bunch of > hacks to make type-C work via extcon, but they know that isn't an > upstreamable solution. > > Robin. > > > 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. > > > > This patch skips the probing failed devices to fix this issue. > > > > Link: http://lists.infradead.org/pipermail/linux-rockchip/2020-September/022352.html > > Signed-off-by: Jian-Hong Pan <jhp@xxxxxxxxxxxxx> > > --- > > drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 6 ++++++ > > 1 file changed, 6 insertions(+) > > > > diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c > > index 0f3eb392fe39..de13588602b4 100644 > > --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c > > +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c > > @@ -331,6 +331,12 @@ static struct component_match *rockchip_drm_match_add(struct device *dev) > > > > if (!d) > > break; > > + if (!d->driver) { > > + DRM_DEV_ERROR(d, > > + "%s did not probe successfully", > > + drv->driver.name); > > + continue; > > + } > > > > device_link_add(dev, d, DL_FLAG_STATELESS); > > component_match_add(dev, &match, compare_dev, d); > > > _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
