Jocelyn Falempe <jfalempe@xxxxxxxxxx> writes:
Hello Jocelyn,
> It allows to check if the drm device supports drm_panic.
> Prepare the work to have better integration with fbcon and vtconsole.
>
> Signed-off-by: Jocelyn Falempe <jfalempe@xxxxxxxxxx>
> ---
> drivers/gpu/drm/drm_panic.c | 20 ++++++++++++++++++++
> include/drm/drm_panic.h | 2 ++
> 2 files changed, 22 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_panic.c b/drivers/gpu/drm/drm_panic.c
> index 948aed00595e..d9a25c2d0a65 100644
> --- a/drivers/gpu/drm/drm_panic.c
> +++ b/drivers/gpu/drm/drm_panic.c
> @@ -703,6 +703,26 @@ static void debugfs_register_plane(struct drm_plane *plane, int index)
> static void debugfs_register_plane(struct drm_plane *plane, int index) {}
> #endif /* CONFIG_DRM_PANIC_DEBUG */
>
> +/**
> + * drm_panic_is_enabled
> + * @dev: the drm device that may supports drm_panic
> + *
> + * returns true if the drm device supports drm_panic
> + */
> +bool drm_panic_is_enabled(struct drm_device *dev)
> +{
> + struct drm_plane *plane;
> +
> + if (!dev->mode_config.num_total_plane)
> + return false;
> +
> + drm_for_each_plane(plane, dev)
> + if (plane->helper_private && plane->helper_private->get_scanout_buffer)
> + return true;
> + return false;
> +}
> +EXPORT_SYMBOL(drm_panic_is_enabled);
> +
Reviewed-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
--
Best regards,
Javier Martinez Canillas
Core Platforms
Red Hat
