Per toshiba,tc358767.yaml DT binding document, port@2 the output (e)DP port is optional. In case this port is not described in DT, the bridge driver operates in DPI-to-DP mode. Make sure the driver treats this as a valid mode of operation instead of reporting invalid mode.
Fixes: 71f7d9c03118 ("drm/bridge: tc358767: Detect bridge mode from connected endpoints in DT") 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 --- drivers/gpu/drm/bridge/tc358767.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c index 7dde71313b84..485717c8f0b4 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -1964,7 +1964,9 @@ static int tc_probe_bridge_endpoint(struct tc_data *tc) struct of_endpoint endpoint; struct device_node *node = NULL; const u8 mode_dpi_to_edp = BIT(1) | BIT(2); + const u8 mode_dpi_to_dp = BIT(1); const u8 mode_dsi_to_edp = BIT(0) | BIT(2); + const u8 mode_dsi_to_dp = BIT(0); const u8 mode_dsi_to_dpi = BIT(0) | BIT(1); u8 mode = 0;
@@ -1990,11 +1992,11 @@ static int tc_probe_bridge_endpoint(struct tc_data *tc) mode |= BIT(endpoint.port); }
- if (mode == mode_dpi_to_edp) + if (mode == mode_dpi_to_edp || mode == mode_dpi_to_dp) return tc_probe_edp_bridge_endpoint(tc); else if (mode == mode_dsi_to_dpi) return tc_probe_dpi_bridge_endpoint(tc); - else if (mode == mode_dsi_to_edp) + else if (mode == mode_dsi_to_edp || mode == mode_dsi_to_dp) dev_warn(dev, "The mode DSI-to-(e)DP is not supported!\n"); else dev_warn(dev, "Invalid mode (0x%x) is not supported!\n", mode);