Handle empty data-lanes = < >; property, which translates to dsi_lanes = 0 as invalid. Reviewed-by: Andrzej Hajda <andrzej.hajda@xxxxxxxxx> Reviewed-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx> Fixes: bbfd3190b6562 ("drm/bridge: tc358767: Add DSI-to-DPI mode support") Signed-off-by: Marek Vasut <marex@xxxxxxx> Cc: Jonas Karlman <jonas@xxxxxxxxx> Cc: Laurent Pinchart <Laurent.pinchart@xxxxxxxxxxxxxxxx> Cc: Lucas Stach <l.stach@xxxxxxxxxxxxxx> Cc: Marek Vasut <marex@xxxxxxx> Cc: Maxime Ripard <maxime@xxxxxxxxxx> Cc: Neil Armstrong <narmstrong@xxxxxxxxxxxx> Cc: Robert Foss <robert.foss@xxxxxxxxxx> Cc: Sam Ravnborg <sam@xxxxxxxxxxxx> --- V2: - Add RB from Andrzej and Lucas --- drivers/gpu/drm/bridge/tc358767.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c index 798da0e4d0863..f78c2ad845159 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -1899,7 +1899,7 @@ static int tc_mipi_dsi_host_attach(struct tc_data *tc) of_node_put(host_node); of_node_put(endpoint); - if (dsi_lanes < 0 || dsi_lanes > 4) + if (dsi_lanes <= 0 || dsi_lanes > 4) return -EINVAL; if (!host) -- 2.35.1