[PATCH 5.15 146/402] drm/bridge: tc358775: Dont log an error when DSI host cant be found

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5.15-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Nícolas F. R. A. Prado <nfraprado@xxxxxxxxxxxxx>

[ Upstream commit 272377aa0e3dddeec3f568c8bb9d12c7a79d8ef5 ]

Given that failing to find a DSI host causes the driver to defer probe,
make use of dev_err_probe() to log the reason. This makes the defer
probe reason available and avoids alerting userspace about something
that is not necessarily an error.

Fixes: b26975593b17 ("display/drm/bridge: TC358775 DSI/LVDS driver")
Suggested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@xxxxxxxxxxxxx>
Signed-off-by: Robert Foss <rfoss@xxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20240415-anx7625-defer-log-no-dsi-host-v3-6-619a28148e5c@xxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/gpu/drm/bridge/tc358775.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/bridge/tc358775.c b/drivers/gpu/drm/bridge/tc358775.c
index 2272adcc5b4ad..55697fa4d7c8b 100644
--- a/drivers/gpu/drm/bridge/tc358775.c
+++ b/drivers/gpu/drm/bridge/tc358775.c
@@ -605,10 +605,8 @@ static int tc_bridge_attach(struct drm_bridge *bridge,
 						};
 
 	host = of_find_mipi_dsi_host_by_node(tc->host_node);
-	if (!host) {
-		dev_err(dev, "failed to find dsi host\n");
-		return -EPROBE_DEFER;
-	}
+	if (!host)
+		return dev_err_probe(dev, -EPROBE_DEFER, "failed to find dsi host\n");
 
 	dsi = mipi_dsi_device_register_full(host, &info);
 	if (IS_ERR(dsi)) {
-- 
2.43.0







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