drm/sti: update VTG timing programming

This update eases to understand the VTG programming.
It also sets a VTG output id for each supported connectors.

Signed-off-by: Vincent Abriou <vincent.abriou@st.com>
Reviewed-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/gpu/drm/sti/sti_vtg.h b/drivers/gpu/drm/sti/sti_vtg.h
index cd2439f89d05..f1dcdf9c2342 100644
--- a/drivers/gpu/drm/sti/sti_vtg.h
+++ b/drivers/gpu/drm/sti/sti_vtg.h
@@ -10,6 +10,11 @@
 #define VTG_TOP_FIELD_EVENT     1
 #define VTG_BOTTOM_FIELD_EVENT  2
 
+#define VTG_SYNC_ID_HDMI        1
+#define VTG_SYNC_ID_HDDCS       2
+#define VTG_SYNC_ID_HDF         3
+#define VTG_SYNC_ID_DVO         4
+
 struct sti_vtg;
 struct drm_display_mode;
 struct notifier_block;