Hi Sam, Thank you for the patch. On Fri, Jul 03, 2020 at 09:23:58PM +0200, Sam Ravnborg wrote: > All panels shall report a connector type. > panel-simple has a lot of panels with no connector_type, > and for these fall back to DPI as the default. > > Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx> > Cc: Thierry Reding <thierry.reding@xxxxxxxxx> > Cc: Sam Ravnborg <sam@xxxxxxxxxxxx> > --- > drivers/gpu/drm/panel/panel-simple.c | 10 ++++++++-- > 1 file changed, 8 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c > index 7b5d212215e0..b3ec965721b0 100644 > --- a/drivers/gpu/drm/panel/panel-simple.c > +++ b/drivers/gpu/drm/panel/panel-simple.c > @@ -500,6 +500,7 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) > struct panel_simple *panel; > struct display_timing dt; > struct device_node *ddc; > + int connector_type; > int err; > > panel = devm_kzalloc(dev, sizeof(*panel), GFP_KERNEL); > @@ -566,8 +567,13 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) > desc->bpc != 8); > } > > - drm_panel_init(&panel->base, dev, &panel_simple_funcs, > - desc->connector_type); > + /* Default DRM_MODE_CONNECTOR_DPI if no connector_type is set */ > + if (desc->connector_type != 0) > + connector_type = desc->connector_type; > + else > + connector_type = DRM_MODE_CONNECTOR_DPI; This avoids a WARN_ON(), which is good, but should we add a dev_warn() to get this fixed ? > + > + drm_panel_init(&panel->base, dev, &panel_simple_funcs, connector_type); > > err = drm_panel_of_backlight(&panel->base); > if (err) -- Regards, Laurent Pinchart _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel