diff options
| author | Liu Ying <victor.liu@nxp.com> | 2024-05-13 11:02:43 +0300 |
|---|---|---|
| committer | Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2024-05-20 00:23:23 +0300 |
| commit | 20da948e3a807c67f0efe4f665e64728be370f3d (patch) | |
| tree | f05d0d6f668e1a1be8e18770f02b392784ac8323 /drivers/gpu | |
| parent | 959314c438caf1b62d787f02d54a193efda38880 (diff) | |
| download | linux-20da948e3a807c67f0efe4f665e64728be370f3d.tar.xz | |
drm/bridge: adv7511: Attach next bridge without creating connector
The connector is created by either this ADV7511 bridge driver or
any DRM device driver/previous bridge driver, so this ADV7511
bridge driver should not let the next bridge driver create connector.
If the next bridge is a HDMI connector, the next bridge driver
would fail to attach bridge from display_connector_attach() without
the DRM_BRIDGE_ATTACH_NO_CONNECTOR flag.
Add that flag to drm_bridge_attach() function call in
adv7511_bridge_attach() to fix the issue.
This fixes the issue where the HDMI connector bridge fails to attach
to the previous ADV7535 bridge on i.MX8MP EVK platform:
[ 2.216442] [drm:drm_bridge_attach] *ERROR* failed to attach bridge /hdmi-connector to encoder None-37: -22
[ 2.220675] mmc1: SDHCI controller on 30b50000.mmc [30b50000.mmc] using ADMA
[ 2.226262] [drm:drm_bridge_attach] *ERROR* failed to attach bridge /soc@0/bus@30800000/i2c@30a30000/hdmi@3d to encoder None-37: -22
[ 2.245204] [drm:drm_bridge_attach] *ERROR* failed to attach bridge /soc@0/bus@32c00000/dsi@32e60000 to encoder None-37: -22
[ 2.256445] imx-lcdif 32e80000.display-controller: error -EINVAL: Failed to attach bridge for endpoint0
[ 2.265850] imx-lcdif 32e80000.display-controller: error -EINVAL: Cannot connect bridge
[ 2.274009] imx-lcdif 32e80000.display-controller: probe with driver imx-lcdif failed with error -22
Fixes: 14b3cdbd0e5b ("drm/bridge: adv7511: make it honour next bridge in DT")
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Acked-by: Sui Jingfeng <suijingfeng@bosc.ac.cn>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240513080243.3952292-1-victor.liu@nxp.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c index dd21b81bd28f..66ccb61e2a66 100644 --- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c +++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c @@ -953,7 +953,8 @@ static int adv7511_bridge_attach(struct drm_bridge *bridge, int ret = 0; if (adv->next_bridge) { - ret = drm_bridge_attach(bridge->encoder, adv->next_bridge, bridge, flags); + ret = drm_bridge_attach(bridge->encoder, adv->next_bridge, bridge, + flags | DRM_BRIDGE_ATTACH_NO_CONNECTOR); if (ret) return ret; } |