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 Signed-off-by: Stefan Agner stefan@agner.ch --- include/drm/drm_crtc.h | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index c65a212..20a489d 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -126,6 +126,14 @@ 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. */ @@ -147,6 +155,7 @@ 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;