From: Marek Vasut marex@denx.de
[ Upstream commit edbc7960bef7fd71ef1e44d0df15b864784b14c8 ]
Handle empty data-lanes = < >; property, which translates to dsi_lanes = 0 as invalid.
Fixes: ceb515ba29ba6 ("drm/bridge: ti-sn65dsi83: Add TI SN65DSI83 and SN65DSI84 driver") Signed-off-by: Marek Vasut marex@denx.de Cc: Jonas Karlman jonas@kwiboo.se Cc: Laurent Pinchart Laurent.pinchart@ideasonboard.com Cc: Lucas Stach l.stach@pengutronix.de Cc: Marek Vasut marex@denx.de Cc: Maxime Ripard maxime@cerno.tech Cc: Neil Armstrong narmstrong@baylibre.com Cc: Robert Foss robert.foss@linaro.org Cc: Sam Ravnborg sam@ravnborg.org Reviewed-by: Andrzej Hajda andrzej.hajda@intel.com Reviewed-by: Lucas Stach l.stach@pengutronix.de Link: https://patchwork.freedesktop.org/patch/msgid/20220518233844.248504-1-marex@... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/bridge/ti-sn65dsi83.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi83.c b/drivers/gpu/drm/bridge/ti-sn65dsi83.c index 19daaddd29a4..3d58110465fe 100644 --- a/drivers/gpu/drm/bridge/ti-sn65dsi83.c +++ b/drivers/gpu/drm/bridge/ti-sn65dsi83.c @@ -573,7 +573,7 @@ static int sn65dsi83_parse_dt(struct sn65dsi83 *ctx, enum sn65dsi83_model model) ctx->host_node = of_graph_get_remote_port_parent(endpoint); of_node_put(endpoint);
- if (ctx->dsi_lanes < 0 || ctx->dsi_lanes > 4) { + if (ctx->dsi_lanes <= 0 || ctx->dsi_lanes > 4) { ret = -EINVAL; goto err_put_node; }