When the next bridge does not specify any bus flags, use the bridge->timings->input_bus_flags as fallback when propagating bus flags from next bridge to current bridge.
Signed-off-by: Nikhil Devshatwar nikhil.nd@ti.com --- drivers/gpu/drm/drm_bridge.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c index 64f0effb52ac..8353723323ab 100644 --- a/drivers/gpu/drm/drm_bridge.c +++ b/drivers/gpu/drm/drm_bridge.c @@ -975,6 +975,13 @@ drm_atomic_bridge_propagate_bus_flags(struct drm_bridge *bridge, * duplicate the "dummy propagation" logic. */ bridge_state->input_bus_cfg.flags = output_flags; + + /* + * Use the bridge->timings->input_bus_flags as fallback if the next bridge + * does not specify the flags + */ + if (!bridge_state->input_bus_cfg.flags) + bridge_state->input_bus_cfg.flags = bridge->timings->input_bus_flags; }
/**