diff options
| author | Marek Vasut <marex@denx.de> | 2022-07-25 00:43:17 +0200 |
|---|---|---|
| committer | Robert Foss <robert.foss@linaro.org> | 2022-08-29 16:56:37 +0200 |
| commit | d688f6b5525d5bc1b88c198959274d53a1a24204 (patch) | |
| tree | aea8c09a404aa3f9d74cf2ef5ff1cb1be49cc62e /drivers/gpu/drm/bridge | |
| parent | f8e1fa0fc8bd13122324da7d1e80d66641220680 (diff) | |
| download | linux-d688f6b5525d5bc1b88c198959274d53a1a24204.tar.bz2 | |
drm/bridge: tc358767: Handle bridge past DPI output
Currently the driver only handles panel directly connected to the DPI output.
Handle the case where a bridge is connected past DPI output of this bridge.
This could be e.g. DPI to LVDS encoder chip.
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: 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: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220724224317.288727-1-marex@denx.de
Diffstat (limited to 'drivers/gpu/drm/bridge')
| -rw-r--r-- | drivers/gpu/drm/bridge/tc358767.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c index baaed4d37911..89e060b273ef 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -1913,22 +1913,23 @@ static int tc_mipi_dsi_host_attach(struct tc_data *tc) static int tc_probe_dpi_bridge_endpoint(struct tc_data *tc) { struct device *dev = tc->dev; + struct drm_bridge *bridge; struct drm_panel *panel; int ret; /* port@1 is the DPI input/output port */ - ret = drm_of_find_panel_or_bridge(dev->of_node, 1, 0, &panel, NULL); + ret = drm_of_find_panel_or_bridge(dev->of_node, 1, 0, &panel, &bridge); if (ret && ret != -ENODEV) return ret; if (panel) { - struct drm_bridge *panel_bridge; - - panel_bridge = devm_drm_panel_bridge_add(dev, panel); - if (IS_ERR(panel_bridge)) - return PTR_ERR(panel_bridge); + bridge = devm_drm_panel_bridge_add(dev, panel); + if (IS_ERR(bridge)) + return PTR_ERR(bridge); + } - tc->panel_bridge = panel_bridge; + if (bridge) { + tc->panel_bridge = bridge; tc->bridge.type = DRM_MODE_CONNECTOR_DPI; tc->bridge.funcs = &tc_dpi_bridge_funcs; |