OMAP4: DSS2: HDMI: Dispc gamma enable set/reset function for TV.

Adding function to reset/set gamma table bit for TV interface, currently
only support for disabled is added.

Signed-off-by: Mythri P K <mythripk@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

2 files changed, 15 insertions, 0 deletions

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index b8c576a0bc02..7804779c9da1 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -1008,6 +1008,20 @@ void dispc_set_burst_size(enum omap_plane plane,
         enable_clocks(0);
 }
 
+void dispc_enable_gamma_table(bool enable)
+{
+        /*
+         * This is partially implemented to support only disabling of
+         * the gamma table.
+         */
+        if (enable) {
+                DSSWARN("Gamma table enabling for TV not yet supported");
+                return;
+        }
+
+        REG_FLD_MOD(DISPC_CONFIG, enable, 9, 9);
+}
+
 static void _dispc_set_vid_color_conv(enum omap_plane plane, bool enable)
 {
         u32 val;
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index eb05d39ef17c..ab20270d761a 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -370,6 +370,7 @@ void dispc_set_plane_size(enum omap_plane plane, u16 width, u16 height);
 void dispc_set_channel_out(enum omap_plane plane,
                 enum omap_channel channel_out);
 
+void dispc_enable_gamma_table(bool enable);
 int dispc_setup_plane(enum omap_plane plane,
                       u32 paddr, u16 screen_width,
                       u16 pos_x, u16 pos_y,