On Fri, 14 Aug 2015, Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx> wrote: > This patch adds support to get edid way early before the connector is > created, this is mainly used for panel drivers to auto-probe the panel > based on the vendor and product id from EDID. > > Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx> > --- > drivers/gpu/drm/drm_edid.c | 8 ++++++++ > include/drm/drm_crtc.h | 1 + > 2 files changed, 9 insertions(+) > > diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c > index 7087da3..30359cd 100644 > --- a/drivers/gpu/drm/drm_edid.c > +++ b/drivers/gpu/drm/drm_edid.c > @@ -1388,6 +1388,14 @@ struct edid *drm_get_edid(struct drm_connector *connector, > } > EXPORT_SYMBOL(drm_get_edid); > > +struct edid *drm_get_edid_early(struct i2c_adapter *adapter) > +{ > + struct drm_connector dummy_connector; > + > + return drm_get_edid(&dummy_connector, adapter); This will oops the kernel on bad EDID. BR, Jani. > +} > +EXPORT_SYMBOL(drm_get_edid_early); > + > /** > * drm_edid_duplicate - duplicate an EDID and the extensions > * @edid: EDID to duplicate > diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h > index 57ca8cc..35d8763 100644 > --- a/include/drm/drm_crtc.h > +++ b/include/drm/drm_crtc.h > @@ -1330,6 +1330,7 @@ extern void drm_reinit_primary_mode_group(struct drm_device *dev); > extern bool drm_probe_ddc(struct i2c_adapter *adapter); > extern struct edid *drm_get_edid(struct drm_connector *connector, > struct i2c_adapter *adapter); > +extern struct edid *drm_get_edid_early(struct i2c_adapter *adapter); > extern struct edid *drm_edid_duplicate(const struct edid *edid); > extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid); > extern void drm_mode_config_init(struct drm_device *dev); > -- > 1.9.1 > > _______________________________________________ > dri-devel mailing list > dri-devel@xxxxxxxxxxxxxxxxxxxxx > http://lists.freedesktop.org/mailman/listinfo/dri-devel -- Jani Nikula, Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html