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Diffstat (limited to 'include/drm/drm_bridge.h')
-rw-r--r--include/drm/drm_bridge.h35
1 files changed, 34 insertions, 1 deletions
diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h
index 682d01ba920c..3270fec46979 100644
--- a/include/drm/drm_bridge.h
+++ b/include/drm/drm_bridge.h
@@ -29,6 +29,7 @@
#include <drm/drm_modes.h>
struct drm_bridge;
+struct drm_bridge_timings;
struct drm_panel;
/**
@@ -90,7 +91,7 @@ struct drm_bridge_funcs {
*
* drm_mode_status Enum
*/
- enum drm_mode_status (*mode_valid)(struct drm_bridge *crtc,
+ enum drm_mode_status (*mode_valid)(struct drm_bridge *bridge,
const struct drm_display_mode *mode);
/**
@@ -223,12 +224,43 @@ struct drm_bridge_funcs {
};
/**
+ * struct drm_bridge_timings - timing information for the bridge
+ */
+struct drm_bridge_timings {
+ /**
+ * @sampling_edge:
+ *
+ * Tells whether the bridge samples the digital input signal
+ * from the display engine on the positive or negative edge of the
+ * clock, this should reuse the DRM_BUS_FLAG_PIXDATA_[POS|NEG]EDGE
+ * bitwise flags from the DRM connector (bit 2 and 3 valid).
+ */
+ u32 sampling_edge;
+ /**
+ * @setup_time_ps:
+ *
+ * Defines the time in picoseconds the input data lines must be
+ * stable before the clock edge.
+ */
+ u32 setup_time_ps;
+ /**
+ * @hold_time_ps:
+ *
+ * Defines the time in picoseconds taken for the bridge to sample the
+ * input signal after the clock edge.
+ */
+ u32 hold_time_ps;
+};
+
+/**
* struct drm_bridge - central DRM bridge control structure
* @dev: DRM device this bridge belongs to
* @encoder: encoder to which this bridge is connected
* @next: the next bridge in the encoder chain
* @of_node: device node pointer to the bridge
* @list: to keep track of all added bridges
+ * @timings: the timing specification for the bridge, if any (may
+ * be NULL)
* @funcs: control functions
* @driver_private: pointer to the bridge driver's internal context
*/
@@ -240,6 +272,7 @@ struct drm_bridge {
struct device_node *of_node;
#endif
struct list_head list;
+ const struct drm_bridge_timings *timings;
const struct drm_bridge_funcs *funcs;
void *driver_private;