diff options
| author | Marek Vasut <marex@denx.de> | 2022-04-29 23:46:25 +0300 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2022-05-05 02:03:50 +0300 |
| commit | 1bb533b6871a7e3b0692253f7f8bf18338e21627 (patch) | |
| tree | c55eea02957d0f84d53bb1c4cf3714bcc6322113 /drivers/gpu/drm/bridge | |
| parent | 05ecc678357ae0929835b24f40a9ea8a1fcb105a (diff) | |
| download | linux-1bb533b6871a7e3b0692253f7f8bf18338e21627.tar.xz | |
drm/bridge: tc358767: Fix DP bridge mode detection from DT endpoints
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>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220429204625.241591-1-marex@denx.de
Diffstat (limited to 'drivers/gpu/drm/bridge')
| -rw-r--r-- | drivers/gpu/drm/bridge/tc358767.c | 6 |
1 files 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); |