eLCDIF is expecting to have input_bus_flags as DE_LOW in order to
set active low during valid data transfer on each horizontal line.
Add DE_LOW flag via drm bridge timings.
v5:
* rebased based on updated bridge changes
v4, v3, v2, v1:
* none
Signed-off-by: Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/bridge/samsung-dsim.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c
index 527fef6f1ff6..a0f5438b7921 100644
--- a/drivers/gpu/drm/bridge/samsung-dsim.c
+++ b/drivers/gpu/drm/bridge/samsung-dsim.c
@@ -1585,6 +1585,10 @@ static const struct samsung_dsim_host_ops samsung_dsim_generic_host_ops = {
.unregister_host = samsung_dsim_unregister_host,
};
+static const struct drm_bridge_timings samsung_dsim_bridge_timings = {
+ .input_bus_flags = DRM_BUS_FLAG_DE_LOW,
+};
+
int samsung_dsim_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -1665,6 +1669,7 @@ int samsung_dsim_probe(struct platform_device *pdev)
dsi->bridge.funcs = &samsung_dsim_bridge_funcs;
dsi->bridge.of_node = dev->of_node;
+ dsi->bridge.timings = &samsung_dsim_bridge_timings;
dsi->bridge.type = DRM_MODE_CONNECTOR_DSI;
if (dsi->plat_data->host_ops && dsi->plat_data->host_ops->register_host)
--
2.25.1
