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Commit 917f4253 authored by Stefan Agner's avatar Stefan Agner
Browse files

drm/fb_cma_helper: add suspend helper 



Implement a suspend/resume helper for CMA users which calls
drm_fb_helper_set_suspend.

Suggested-by: default avatarThierry Reding <thierry.reding@gmail.com>
Acked-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: default avatarStefan Agner <stefan@agner.ch>
parent 5edb5649

drivers/gpu/drm/drm_fb_cma_helper.c

+15 −0
Original line number Diff line number Diff line
@@ -582,3 +582,18 @@ void drm_fbdev_cma_hotplug_event(struct drm_fbdev_cma *fbdev_cma) 
		drm_fb_helper_hotplug_event(&fbdev_cma->fb_helper);

}

EXPORT_SYMBOL_GPL(drm_fbdev_cma_hotplug_event);



/**

 * drm_fbdev_cma_set_suspend - wrapper around drm_fb_helper_set_suspend

 * @fbdev_cma: The drm_fbdev_cma struct, may be NULL

 * @state: desired state, zero to resume, non-zero to suspend

 *

 * Calls drm_fb_helper_set_suspend, which is a wrapper around

 * fb_set_suspend implemented by fbdev core.

 */

void drm_fbdev_cma_set_suspend(struct drm_fbdev_cma *fbdev_cma, int state)

{

	if (fbdev_cma)

		drm_fb_helper_set_suspend(&fbdev_cma->fb_helper, state);

}

EXPORT_SYMBOL(drm_fbdev_cma_set_suspend);

include/drm/drm_fb_cma_helper.h

+1 −0
Original line number Diff line number Diff line
@@ -23,6 +23,7 @@ void drm_fbdev_cma_fini(struct drm_fbdev_cma *fbdev_cma); 


void drm_fbdev_cma_restore_mode(struct drm_fbdev_cma *fbdev_cma);

void drm_fbdev_cma_hotplug_event(struct drm_fbdev_cma *fbdev_cma);

void drm_fbdev_cma_set_suspend(struct drm_fbdev_cma *fbdev_cma, int state);

int drm_fbdev_cma_create_with_funcs(struct drm_fb_helper *helper,

	struct drm_fb_helper_surface_size *sizes,

	const struct drm_framebuffer_funcs *funcs);