drm/panel-simple: Populate bpc when using panel-dpi

panel-dpi doesn't know the bit depth, so in the same way that
DPI is guessed for the connector type, guess that it'll be 8bpc.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index e468604..74ebe38 100644 (file)
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -496,6 +496,8 @@ static int panel_dpi_probe(struct device *dev,
 
        /* We do not know the connector for the DT node, so guess it */
        desc->connector_type = DRM_MODE_CONNECTOR_DPI;
+       /* Likewise for the bit depth. */
+       desc->bpc = 8;
 
        panel->desc = desc;