[PATCH] drm/bridge: sn65dsi86: defer if there is no dsi host

From: Rob Clark
Date: Tue Dec 07 2021 - 15:03:55 EST


From: Rob Clark <robdclark@xxxxxxxxxxxx>

Otherwise we don't get another shot at it if the bridge probes before
the dsi host is registered. It seems like this is what *most* (but not
all) of the other bridges do.

It looks like this was missed in the conversion to attach dsi host at
probe time.

Fixes: c3b75d4734cb ("drm/bridge: sn65dsi86: Register and attach our DSI device at probe")
Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx>
---
drivers/gpu/drm/bridge/ti-sn65dsi86.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
index 02b490671f8f..3684e12fbac3 100644
--- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
@@ -716,7 +716,7 @@ static int ti_sn_attach_host(struct ti_sn65dsi86 *pdata)
host = of_find_mipi_dsi_host_by_node(pdata->host_node);
if (!host) {
DRM_ERROR("failed to find dsi host\n");
- return -ENODEV;
+ return -EPROBE_DEFER;
}

dsi = devm_mipi_dsi_device_register_full(dev, host, &info);
--
2.33.1