diff options
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/fbdev/omap2/dss/dispc.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/video/fbdev/omap2/dss/dispc.c b/drivers/video/fbdev/omap2/dss/dispc.c index 22b6e0f3e657..3cd78dcfefc5 100644 --- a/drivers/video/fbdev/omap2/dss/dispc.c +++ b/drivers/video/fbdev/omap2/dss/dispc.c @@ -1384,6 +1384,25 @@ static void dispc_init_mflag(void) dispc_ovl_set_mflag_threshold(i, low, high); } + + if (dispc.feat->has_writeback) { + u32 size = dispc_ovl_get_fifo_size(OMAP_DSS_WB); + u32 unit = dss_feat_get_buffer_size_unit(); + u32 low, high; + + dispc_ovl_set_mflag(OMAP_DSS_WB, true); + + /* + * Simulation team suggests below thesholds: + * HT = fifosize * 5 / 8; + * LT = fifosize * 4 / 8; + */ + + low = size * 4 / 8 / unit; + high = size * 5 / 8 / unit; + + dispc_ovl_set_mflag_threshold(OMAP_DSS_WB, low, high); + } } static void dispc_ovl_set_fir(enum omap_plane plane, |