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authorStefan Agner <stefan@agner.ch>2016-02-08 11:38:14 -0800
committerStefan Agner <stefan@agner.ch>2016-05-05 10:09:01 -0700
commitf0aa08387b92e432166d7143993da2635c8821e8 (patch)
treecd2c3d5863e6b38f9db3822c9cbcdd253ec8ecaa /include/drm
parent0552f7651bc233e5407ab06ba97a9d7c25e19580 (diff)
drm: introduce bus_flags in drm_display_info
Introduce bus_flags to specify display bus properties like signal polarities. This is useful for parallel display buses, e.g. to specify the pixel clock or data enable polarity. Suggested-by: Thierry Reding <thierry.reding@gmail.com> Acked-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Manfred Schlaegl <manfred.schlaegl@gmx.at> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Stefan Agner <stefan@agner.ch>
Diffstat (limited to 'include/drm')
-rw-r--r--include/drm/drm_crtc.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 4acdaf5e283d..d1559cd04e3d 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -118,6 +118,14 @@ enum subpixel_order {
#define DRM_COLOR_FORMAT_RGB444 (1<<0)
#define DRM_COLOR_FORMAT_YCRCB444 (1<<1)
#define DRM_COLOR_FORMAT_YCRCB422 (1<<2)
+
+#define DRM_BUS_FLAG_DE_LOW (1<<0)
+#define DRM_BUS_FLAG_DE_HIGH (1<<1)
+/* drive data on pos. edge */
+#define DRM_BUS_FLAG_PIXDATA_POSEDGE (1<<2)
+/* drive data on neg. edge */
+#define DRM_BUS_FLAG_PIXDATA_NEGEDGE (1<<3)
+
/*
* Describes a given display (e.g. CRT or flat panel) and its limitations.
*/
@@ -139,6 +147,7 @@ struct drm_display_info {
const u32 *bus_formats;
unsigned int num_bus_formats;
+ u32 bus_flags;
/* Mask of supported hdmi deep color modes */
u8 edid_hdmi_dc_modes;