drm/dsi: Flag for non-continuous clock behavior

As per section 5.6.1 of the DSI specification, all DSI transmitters must
support continuous clock behavior on the clock lane, while non-continuous
mode support is only optional. Add a flag that allows devices to indicate
that they support non-continuous clock mode so host drivers can adapt
their behavior accordingly.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 944f33f..efa1b55 100644 (file)
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -94,6 +94,8 @@ void mipi_dsi_host_unregister(struct mipi_dsi_host *host);
 #define MIPI_DSI_MODE_VSYNC_FLUSH      BIT(8)
 /* disable EoT packets in HS mode */
 #define MIPI_DSI_MODE_EOT_PACKET       BIT(9)
+/* device supports non-continuous clock behavior (DSI spec 5.6.1) */
+#define MIPI_DSI_CLOCK_NON_CONTINUOUS  BIT(10)
 
 enum mipi_dsi_pixel_format {
        MIPI_DSI_FMT_RGB888,