On Sonntag, 23. Jänner 2022 21:43:23 CET Luca Weiss wrote:
> With CONFIG_DRM_PANEL_EDP=y and CONFIG_DRM_KMS_HELPER=m the compilation
> fails:
>
> drivers/gpu/drm/panel/panel-edp.c:843: undefined reference to
> `drm_panel_dp_aux_backlight'
>
> Add a dependency on DRM_KMS_HELPER to fix this.
>
Forgot to add, this is the closest "Fixes" I can find, before that commit with
arm32 qcom_defconfig both beforementioned options were builtin
Fixes: 9d6366e743f3 ("drm: fb_helper: improve CONFIG_FB dependency")
> Signed-off-by: Luca Weiss <luca@xxxxxxxxx>
> ---
> I briefly tried "select DRM_KMS_HELPER" but that causes a circular
> dependency.
> If someone has a better idea how to solve this, feel free correct me.
>
> drivers/gpu/drm/panel/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
> index 434c2861bb40..fda97837ecb3 100644
> --- a/drivers/gpu/drm/panel/Kconfig
> +++ b/drivers/gpu/drm/panel/Kconfig
> @@ -102,6 +102,7 @@ config DRM_PANEL_SIMPLE
> config DRM_PANEL_EDP
> tristate "support for simple Embedded DisplayPort panels"
> depends on OF
> + depends on DRM_KMS_HELPER
> depends on BACKLIGHT_CLASS_DEVICE
> depends on PM
> select VIDEOMODE_HELPERS
