| Message ID | 1346881733-31970-1-git-send-email-rob.clark@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Rob, On Thu, Sep 6, 2012 at 3:18 AM, Rob Clark <rob.clark@linaro.org> wrote: > From: Rob Clark <rob@ti.com> > > 'struct omap_video_timings' was updated w/ a 'bool interlaced'. Without > a matching update in omap_connector, this field could have undefined > values from the stack, which isn't quite ideal. > > Update the fxns to convert omapdss<->drm timings structs, and zero-init > 'struct omap_video_timings' when it is declared on stack to avoid issues > like this in the future. > > Signed-off-by: Rob Clark <rob@ti.com> Feel free to use Reviewed-by: Sumit Semwal <sumit.semwal@ti.com> > --- > drivers/staging/omapdrm/omap_connector.c | 17 ++++++++--------- > 1 file changed, 8 insertions(+), 9 deletions(-) > > diff --git a/drivers/staging/omapdrm/omap_connector.c b/drivers/staging/omapdrm/omap_connector.c > index 5e2856c..5f4a89b 100644 > --- a/drivers/staging/omapdrm/omap_connector.c > +++ b/drivers/staging/omapdrm/omap_connector.c > @@ -48,13 +48,10 @@ static inline void copy_timings_omap_to_drm(struct drm_display_mode *mode, > mode->vsync_end = mode->vsync_start + timings->vsw; > mode->vtotal = mode->vsync_end + timings->vbp; > > - /* note: whether or not it is interlaced, +/- h/vsync, etc, > - * which should be set in the mode flags, is not exposed in > - * the omap_video_timings struct.. but hdmi driver tracks > - * those separately so all we have to have to set the mode > - * is the way to recover these timings values, and the > - * omap_dss_driver would do the rest. > - */ > + mode->flags = 0; > + > + if (timings->interlace) > + mode->flags |= DRM_MODE_FLAG_INTERLACE; > } > > static inline void copy_timings_drm_to_omap(struct omap_video_timings *timings, > @@ -71,6 +68,8 @@ static inline void copy_timings_drm_to_omap(struct omap_video_timings *timings, > timings->vfp = mode->vsync_start - mode->vdisplay; > timings->vsw = mode->vsync_end - mode->vsync_start; > timings->vbp = mode->vtotal - mode->vsync_end; > + > + timings->interlace = !!(mode->flags & DRM_MODE_FLAG_INTERLACE); > } > > static void omap_connector_dpms(struct drm_connector *connector, int mode) > @@ -187,7 +186,7 @@ static int omap_connector_get_modes(struct drm_connector *connector) > } > } else { > struct drm_display_mode *mode = drm_mode_create(dev); > - struct omap_video_timings timings; > + struct omap_video_timings timings = {0}; > > dssdrv->get_timings(dssdev, &timings); > > @@ -291,7 +290,7 @@ void omap_connector_mode_set(struct drm_connector *connector, > struct omap_connector *omap_connector = to_omap_connector(connector); > struct omap_dss_device *dssdev = omap_connector->dssdev; > struct omap_dss_driver *dssdrv = dssdev->driver; > - struct omap_video_timings timings; > + struct omap_video_timings timings = {0}; > > copy_timings_drm_to_omap(&timings, mode); > > -- > 1.7.9.5 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-omap" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/staging/omapdrm/omap_connector.c b/drivers/staging/omapdrm/omap_connector.c index 5e2856c..5f4a89b 100644 --- a/drivers/staging/omapdrm/omap_connector.c +++ b/drivers/staging/omapdrm/omap_connector.c @@ -48,13 +48,10 @@ static inline void copy_timings_omap_to_drm(struct drm_display_mode *mode, mode->vsync_end = mode->vsync_start + timings->vsw; mode->vtotal = mode->vsync_end + timings->vbp; - /* note: whether or not it is interlaced, +/- h/vsync, etc, - * which should be set in the mode flags, is not exposed in - * the omap_video_timings struct.. but hdmi driver tracks - * those separately so all we have to have to set the mode - * is the way to recover these timings values, and the - * omap_dss_driver would do the rest. - */ + mode->flags = 0; + + if (timings->interlace) + mode->flags |= DRM_MODE_FLAG_INTERLACE; } static inline void copy_timings_drm_to_omap(struct omap_video_timings *timings, @@ -71,6 +68,8 @@ static inline void copy_timings_drm_to_omap(struct omap_video_timings *timings, timings->vfp = mode->vsync_start - mode->vdisplay; timings->vsw = mode->vsync_end - mode->vsync_start; timings->vbp = mode->vtotal - mode->vsync_end; + + timings->interlace = !!(mode->flags & DRM_MODE_FLAG_INTERLACE); } static void omap_connector_dpms(struct drm_connector *connector, int mode) @@ -187,7 +186,7 @@ static int omap_connector_get_modes(struct drm_connector *connector) } } else { struct drm_display_mode *mode = drm_mode_create(dev); - struct omap_video_timings timings; + struct omap_video_timings timings = {0}; dssdrv->get_timings(dssdev, &timings); @@ -291,7 +290,7 @@ void omap_connector_mode_set(struct drm_connector *connector, struct omap_connector *omap_connector = to_omap_connector(connector); struct omap_dss_device *dssdev = omap_connector->dssdev; struct omap_dss_driver *dssdrv = dssdev->driver; - struct omap_video_timings timings; + struct omap_video_timings timings = {0}; copy_timings_drm_to_omap(&timings, mode);