From: Rob Clark robdclark@chromium.org
[ Upstream commit c7782443a88926a4f938f0193041616328cf2db2 ]
If we created our own connector because the driver does not support the NO_CONNECTOR flag, we don't want the downstream bridge to *also* create a connector. And if this driver did pass the NO_CONNECTOR flag (and we supported that mode) this would change nothing.
Fixes: 4e5763f03e10 ("drm/bridge: ti-sn65dsi86: Wrap panel with panel-bridge") Reported-by: Stephen Boyd swboyd@chromium.org Signed-off-by: Rob Clark robdclark@chromium.org Tested-by: Stephen Boyd swboyd@chromium.org Reviewed-by: Laurent Pinchart laurent.pinchart@ideasonboard.com Reviewed-by: Douglas Anderson dianders@chromium.org Tested-by: Douglas Anderson dianders@chromium.org Signed-off-by: Douglas Anderson dianders@chromium.org Link: https://patchwork.freedesktop.org/patch/msgid/20210811235253.924867-2-robdcl... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/bridge/ti-sn65dsi86.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c index c9cddf317c72..3aeed2731945 100644 --- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c +++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c @@ -531,6 +531,9 @@ static int ti_sn_bridge_attach(struct drm_bridge *bridge, } pdata->dsi = dsi;
+ /* We never want the next bridge to *also* create a connector: */ + flags |= DRM_BRIDGE_ATTACH_NO_CONNECTOR; + /* Attach the next bridge */ ret = drm_bridge_attach(bridge->encoder, pdata->next_bridge, &pdata->bridge, flags);