diff options
Diffstat (limited to 'drivers/video/omap2/dss/manager.c')
| -rw-r--r-- | drivers/video/omap2/dss/manager.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c index 542258dbdccc..d1858e71c64e 100644 --- a/drivers/video/omap2/dss/manager.c +++ b/drivers/video/omap2/dss/manager.c @@ -592,6 +592,25 @@ struct omap_overlay_manager *omap_dss_get_overlay_manager(int num) } EXPORT_SYMBOL(omap_dss_get_overlay_manager); +int dss_mgr_simple_check(struct omap_overlay_manager *mgr, + const struct omap_overlay_manager_info *info) +{ + if (dss_has_feature(FEAT_ALPHA_FIXED_ZORDER)) { + /* + * OMAP3 supports only graphics source transparency color key + * and alpha blending simultaneously. See TRM 15.4.2.4.2.2 + * Alpha Mode. + */ + if (info->partial_alpha_enabled && info->trans_enabled + && info->trans_key_type != OMAP_DSS_COLOR_KEY_GFX_DST) { + DSSERR("check_manager: illegal transparency key\n"); + return -EINVAL; + } + } + + return 0; +} + static int dss_mgr_check_zorder(struct omap_overlay_manager *mgr, struct omap_overlay_info **overlay_infos) { |