diff options
| author | Stefan Agner <stefan@agner.ch> | 2016-02-08 11:38:14 -0800 |
|---|---|---|
| committer | Stefan Agner <stefan@agner.ch> | 2016-05-05 10:09:01 -0700 |
| commit | f0aa08387b92e432166d7143993da2635c8821e8 (patch) | |
| tree | cd2c3d5863e6b38f9db3822c9cbcdd253ec8ecaa | |
| parent | 0552f7651bc233e5407ab06ba97a9d7c25e19580 (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>
| -rw-r--r-- | drivers/gpu/drm/panel/panel-simple.c | 2 | ||||
| -rw-r--r-- | include/drm/drm_crtc.h | 9 |
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index ceb20486dacf..77ae07f28b7b 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -72,6 +72,7 @@ struct panel_desc { } delay; u32 bus_format; + u32 bus_flags; }; struct panel_simple { @@ -144,6 +145,7 @@ static int panel_simple_get_fixed_modes(struct panel_simple *panel) if (panel->desc->bus_format) drm_display_info_set_bus_formats(&connector->display_info, &panel->desc->bus_format, 1); + connector->display_info.bus_flags = panel->desc->bus_flags; return num; } 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; |