On Fri, May 25, 2018 at 5:50 PM, Arnd Bergmann <arnd@xxxxxxxx> wrote:
> The DRM panel bridge code is built into the kms helpers module, so we
> get a link error when trying to use it from a built-in driver while the
> kms helper is a loadable module:
>
> drivers/gpu/drm/bridge/lvds-encoder.o: In function `lvds_encoder_probe':
> lvds-encoder.c:(.text+0x124): undefined reference to `devm_drm_panel_bridge_add'
>
> This adds a the same dependency in the lvds-encoder that we use for all
> the other users of the panel bridge. I did not bisect the problem, but
> from inspection it seems to date back to the patch that separated out
> the panel bridge from lvds encoder.
>
> Fixes: 13dfc0540a57 ("drm/bridge: Refactor out the panel wrapper from the lvds-encoder bridge.")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Yours,
Linus Walleij
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