5.15-stable review patch. If anyone has any objections, please let me know.
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From: Nícolas F. R. A. Prado nfraprado@collabora.com
[ 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@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-... Signed-off-by: Sasha Levin sashal@kernel.org --- 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)) {