| Message ID | 781f0352052cc50c823c199ef5f53c84902d0580.1633959458.git.agx@sigxcpu.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | mxsfb/nwl/panels: media bus format fixes | expand |
On 2021-10-11 15:41, Guido Günther wrote: > If a bridge doesn't do any bus format handling MEDIA_BUS_FMT_FIXED is > returned. Fallback to a reasonable default (MEDIA_BUS_FMT_RGB888_1X24) in > that case. > > This unbreaks e.g. using mxsfb with the nwl bridge and mipi dsi panels. > > Reported-by: Martin Kepplinger <martink@posteo.de> > Signed-off-by: Guido Günther <agx@sigxcpu.org> > Reviewed-by: Lucas Stach <l.stach@pengutronix.de> Acked-by: Stefan Agner <stefan@agner.ch> > --- > drivers/gpu/drm/mxsfb/mxsfb_kms.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/drivers/gpu/drm/mxsfb/mxsfb_kms.c > b/drivers/gpu/drm/mxsfb/mxsfb_kms.c > index d6abd2077114..e3fbb8b58d5d 100644 > --- a/drivers/gpu/drm/mxsfb/mxsfb_kms.c > +++ b/drivers/gpu/drm/mxsfb/mxsfb_kms.c > @@ -369,6 +369,12 @@ static void mxsfb_crtc_atomic_enable(struct drm_crtc *crtc, > drm_atomic_get_new_bridge_state(state, > mxsfb->bridge); > bus_format = bridge_state->input_bus_cfg.format; > + if (bus_format == MEDIA_BUS_FMT_FIXED) { > + dev_warn_once(drm->dev, > + "Bridge does not provide bus format, assuming > MEDIA_BUS_FMT_RGB888_1X24.\n" > + "Please fix bridge driver by handling atomic_get_input_bus_fmts.\n"); > + bus_format = MEDIA_BUS_FMT_RGB888_1X24; > + } > } > > /* If there is no bridge, use bus format from connector */
diff --git a/drivers/gpu/drm/mxsfb/mxsfb_kms.c b/drivers/gpu/drm/mxsfb/mxsfb_kms.c index d6abd2077114..e3fbb8b58d5d 100644 --- a/drivers/gpu/drm/mxsfb/mxsfb_kms.c +++ b/drivers/gpu/drm/mxsfb/mxsfb_kms.c @@ -369,6 +369,12 @@ static void mxsfb_crtc_atomic_enable(struct drm_crtc *crtc, drm_atomic_get_new_bridge_state(state, mxsfb->bridge); bus_format = bridge_state->input_bus_cfg.format; + if (bus_format == MEDIA_BUS_FMT_FIXED) { + dev_warn_once(drm->dev, + "Bridge does not provide bus format, assuming MEDIA_BUS_FMT_RGB888_1X24.\n" + "Please fix bridge driver by handling atomic_get_input_bus_fmts.\n"); + bus_format = MEDIA_BUS_FMT_RGB888_1X24; + } } /* If there is no bridge, use bus format from connector */