drm/bridge: tc358775: Don't log an error when DSI host can't be found

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@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240415-anx7625-defer-log-no-dsi-host-v3-6-619a28148e5c@collabora.com

diff --git a/drivers/gpu/drm/bridge/tc358775.c b/drivers/gpu/drm/bridge/tc358775.c
index 90a89d70d83287948dbdcf9425fd657f2fe6668c..fea4f00a20f83ce475389d0fbd283c85cd621d56 100644 (file)
--- a/drivers/gpu/drm/bridge/tc358775.c
+++ b/drivers/gpu/drm/bridge/tc358775.c
@@ -610,10 +610,8 @@ static int tc_attach_host(struct tc_data *tc)
                                                };
 
        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 = devm_mipi_dsi_device_register_full(dev, host, &info);
        if (IS_ERR(dsi)) {