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...@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;
}
/**
--
2.17.1
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