[PATCH 1/2] drm/bridge: tc358767: Use dev_err_probe
Alexander Stein
alexander.stein at ew.tq-group.com
Thu Aug 17 07:52:33 UTC 2023
The function calls preceding these returns can return -EPROBE_DEFER. So
use dev_err_probe to add some information to
/sys/kernel/debug/devices_deferred
Signed-off-by: Alexander Stein <alexander.stein at ew.tq-group.com>
---
drivers/gpu/drm/bridge/tc358767.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c
index b45bffab7c817..c07312ea9dc05 100644
--- a/drivers/gpu/drm/bridge/tc358767.c
+++ b/drivers/gpu/drm/bridge/tc358767.c
@@ -2113,7 +2113,8 @@ static int tc_probe_dpi_bridge_endpoint(struct tc_data *tc)
/* port at 1 is the DPI input/output port */
ret = drm_of_find_panel_or_bridge(dev->of_node, 1, 0, &panel, &bridge);
if (ret && ret != -ENODEV)
- return ret;
+ return dev_err_probe(dev, ret,
+ "Could not find DPI panel or bridge\n");
if (panel) {
bridge = devm_drm_panel_bridge_add(dev, panel);
@@ -2141,7 +2142,8 @@ static int tc_probe_edp_bridge_endpoint(struct tc_data *tc)
/* port at 2 is the output port */
ret = drm_of_find_panel_or_bridge(dev->of_node, 2, 0, &panel, NULL);
if (ret && ret != -ENODEV)
- return ret;
+ return dev_err_probe(dev, ret,
+ "Could not find DSI panel or bridge\n");
if (panel) {
struct drm_bridge *panel_bridge;
@@ -2353,7 +2355,7 @@ static int tc_probe(struct i2c_client *client)
ret = tc_mipi_dsi_host_attach(tc);
if (ret) {
drm_bridge_remove(&tc->bridge);
- return ret;
+ return dev_err_probe(dev, ret, "Failed to attach DSI host\n");
}
}
--
2.34.1
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