As per [1] and [2], ADV7535/7533 supports only 2-, 3-, or 4-lane. Drop unsupported 1-lane.

[1] https://www.analog.com/media/en/technical-documentation/data-sheets/ADV7535.... [2] https://www.analog.com/media/en/technical-documentation/data-sheets/ADV7533....

Fixes: 1e4d58cd7f88 ("drm/bridge: adv7533: Create a MIPI DSI device") Reported-by: Hien Huynh hien.huynh.px@renesas.com Cc: stable@vger.kernel.org Reviewed-by: Laurent Pinchart laurent.pinchart+renesas@ideasonboard.com Signed-off-by: Biju Das biju.das.jz@bp.renesas.com --- Changes in v4: - Added link to ADV7533 data sheet. - Collected tags Changes in v3: - Updated commit header and description - Updated fixes tag - Dropped single lane support Changes in v2: - Added the tag "Cc: stable@vger.kernel.org" in the sign-off area. - Dropped Archit Taneja invalid Mail address --- drivers/gpu/drm/bridge/adv7511/adv7533.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/adv7511/adv7533.c b/drivers/gpu/drm/bridge/adv7511/adv7533.c index 5d0e55ef4028..51ddd935b568 100644 --- a/drivers/gpu/drm/bridge/adv7511/adv7533.c +++ b/drivers/gpu/drm/bridge/adv7511/adv7533.c @@ -174,7 +174,7 @@ struct device_node *adv7533_parse_dt(struct device_node *np,

of_property_read_u32(np, "adi,dsi-lanes", &num_lanes);

- if (num_lanes < 1 || num_lanes > 4) + if (num_lanes < 2 || num_lanes > 4) return ERR_PTR(-EINVAL);

adv->num_dsi_lanes = num_lanes;