Patch "drm/panel: novatek-nt35950: Don't log an error when DSI host can't be found" has been added to the 6.6-stable tree

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This is a note to let you know that I've just added the patch titled

    drm/panel: novatek-nt35950: Don't log an error when DSI host can't be found

to the 6.6-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     drm-panel-novatek-nt35950-don-t-log-an-error-when-ds.patch
and it can be found in the queue-6.6 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit f2dc95a7352761836c3200a94d66bf69e1b180bc
Author: Nícolas F. R. A. Prado <nfraprado@xxxxxxxxxxxxx>
Date:   Mon Apr 15 17:49:36 2024 -0400

    drm/panel: novatek-nt35950: Don't log an error when DSI host can't be found
    
    [ Upstream commit 5ff5505b9a2d827cae3f95dceba258c963138175 ]
    
    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: 623a3531e9cf ("drm/panel: Add driver for Novatek NT35950 DSI DriverIC panels")
    Suggested-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-v3-8-619a28148e5c@xxxxxxxxxxxxx
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/gpu/drm/panel/panel-novatek-nt35950.c b/drivers/gpu/drm/panel/panel-novatek-nt35950.c
index 412ca84d05811..4be5013330ec2 100644
--- a/drivers/gpu/drm/panel/panel-novatek-nt35950.c
+++ b/drivers/gpu/drm/panel/panel-novatek-nt35950.c
@@ -565,10 +565,8 @@ static int nt35950_probe(struct mipi_dsi_device *dsi)
 		}
 		dsi_r_host = of_find_mipi_dsi_host_by_node(dsi_r);
 		of_node_put(dsi_r);
-		if (!dsi_r_host) {
-			dev_err(dev, "Cannot get secondary DSI host\n");
-			return -EPROBE_DEFER;
-		}
+		if (!dsi_r_host)
+			return dev_err_probe(dev, -EPROBE_DEFER, "Cannot get secondary DSI host\n");
 
 		nt->dsi[1] = mipi_dsi_device_register_full(dsi_r_host, info);
 		if (!nt->dsi[1]) {




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