Marek Szyprowski 34263c1b15
drm: bridge: panel: Register connector if DRM device is already registered
If panel_bridge_attach() happens after DRM device registration, the
created connector will not be registered by the DRM core anymore. Fix
this by registering it explicitly in such case.

This fixes the following issue observed on Samsung Exynos4210-based Trats
board with a DSI panel (the panel driver is registered after the Exynos DRM
component device is bound):

$ ./modetest -c -Mexynos
could not get connector 56: No such file or directory
Segmentation fault

While touching this, move the connector reset() call also under the DRM
device registered check, because otherwise it is not really needed.

Fixes: 934aef885f9d ("drm: bridge: panel: Reset the connector state pointer")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220419091422.4255-1-m.szyprowski@samsung.com
2022-04-19 18:11:27 +02:00
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Linux kernel
============

There are several guides for kernel developers and users. These guides can
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There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
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