Re: [PATCH] drm/imx: select DRM_DISPLAY_HELPER as needed

[Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>]

On 04/12/2025 11:46, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
> 
> CONFIG_DRM_BRIDGE_CONNECTOR is a bool option that turns on features of
> the display helpers, which are in a module controlled by the (tristate)
> CONFIG_DRM_DISPLAY_HELPER. If the display helpers are in a loadable
> module, a built-in driver trying to use the bridge connectors fails
> to link:
> 
> x86_64-linux-ld: drivers/gpu/drm/imx/ipuv3/parallel-display.o: in function `imx_pd_bind':
> parallel-display.c:(.text+0xcd): undefined reference to `drm_bridge_connector_init'
> x86_64-linux-ld: drivers/gpu/drm/imx/ipuv3/imx-ldb.o: in function `imx_ldb_bind':
> imx-ldb.c:(.text+0x224): undefined reference to `drm_bridge_connector_init'
> 
> Select the DRM_BRIDGE_CONNECTOR symbol as well, to ensure it's built-in
> if anything needs it.
> 
> Fixes: f94b9707a1c9 ("drm/imx: parallel-display: switch to imx_legacy_bridge / drm_bridge_connector")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
>   drivers/gpu/drm/imx/ipuv3/Kconfig | 2 ++
>   1 file changed, 2 insertions(+)

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>

-- 
With best wishes
Dmitry