Mflag thresholds for all pipelines are set in dispc_init_mflag(), but we
are missing that for WB pipeline. Add WB configuration.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
---
drivers/video/fbdev/omap2/dss/dispc.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
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,
--
2.5.0
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