[PATCH v2 10/12] drm: bridge: samsung-dsim: Add input_bus_flags

Jagan Teki jagan at amarulasolutions.com
Wed May 4 04:40:19 PDT 2022


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.

v2:
* none

v1:
* none

Signed-off-by: Jagan Teki <jagan at amarulasolutions.com>
---
 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 407abd488005..28ed6b096fd0 100644
--- a/drivers/gpu/drm/bridge/samsung-dsim.c
+++ b/drivers/gpu/drm/bridge/samsung-dsim.c
@@ -1587,6 +1587,10 @@ __weak void samsung_dsim_plat_remove(struct samsung_dsim *priv)
 {
 }
 
+static const struct drm_bridge_timings samsung_dsim_bridge_timings = {
+	.input_bus_flags = DRM_BUS_FLAG_DE_LOW,
+};
+
 static int samsung_dsim_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
@@ -1666,6 +1670,7 @@ static 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->driver_data->platform_init) {
-- 
2.25.1




More information about the linux-arm-kernel mailing list