diff options
| author | Ville Syrjälä <ville.syrjala@nokia.com> | 2010-03-17 21:28:50 +0200 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@nokia.com> | 2010-08-03 15:18:46 +0300 |
| commit | 1ceafc00910439c8e5450fae189b69427725992c (patch) | |
| tree | 5b98fb03b1885dc64b335965bd73686b818e368c /drivers/video/omap2/omapfb/omapfb-main.c | |
| parent | 3d84b65aa63833a2ac07b1cc626984a1e1485fed (diff) | |
OMAP: DSS2: OMAPFB: Add some locking debug checks
Trigger WARN_ON() messages from various places in the code in case the
memory region is not currently locked.
Signed-off-by: Ville Syrjälä <ville.syrjala@nokia.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Diffstat (limited to 'drivers/video/omap2/omapfb/omapfb-main.c')
| -rw-r--r-- | drivers/video/omap2/omapfb/omapfb-main.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c index a3f72ba79958..a545e8d4817f 100644 --- a/drivers/video/omap2/omapfb/omapfb-main.c +++ b/drivers/video/omap2/omapfb/omapfb-main.c @@ -668,6 +668,8 @@ int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var) DBG("check_fb_var %d\n", ofbi->id); + WARN_ON(!atomic_read(&ofbi->region->lock_count)); + r = fb_mode_to_dss_mode(var, &mode); if (r) { DBG("cannot convert var to omap dss mode\n"); @@ -873,6 +875,8 @@ int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl, int rotation = var->rotate; int i; + WARN_ON(!atomic_read(&ofbi->region->lock_count)); + for (i = 0; i < ofbi->num_overlays; i++) { if (ovl != ofbi->overlays[i]) continue; @@ -966,6 +970,8 @@ int omapfb_apply_changes(struct fb_info *fbi, int init) fill_fb(fbi); #endif + WARN_ON(!atomic_read(&ofbi->region->lock_count)); + for (i = 0; i < ofbi->num_overlays; i++) { ovl = ofbi->overlays[i]; |