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Commit d9220d47 authored by Gustavo Padovan's avatar Gustavo Padovan Committed by Inki Dae
Browse files

drm/exynos: add prepare and cleanup phases for planes 



From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

.prepare_plane() and .cleanup_plane() allows to perform extra operations
before and after the update of planes. For FIMD for example this will
be used to enable disable the shadow protection bit.

Signed-off-by: default avatarGustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: default avatarInki Dae <inki.dae@samsung.com>
parent fc75f710

drivers/gpu/drm/exynos/exynos_drm_crtc.c

+19 −0
Original line number Diff line number Diff line
@@ -73,16 +73,35 @@ static void exynos_crtc_atomic_begin(struct drm_crtc *crtc, 
				     struct drm_crtc_state *old_crtc_state)

{

	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);

	struct drm_plane *plane;



	if (crtc->state->event) {

		WARN_ON(drm_crtc_vblank_get(crtc) != 0);

		exynos_crtc->event = crtc->state->event;

	}



	drm_atomic_crtc_for_each_plane(plane, crtc) {

		struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane);



		if (exynos_crtc->ops->atomic_begin)

			exynos_crtc->ops->atomic_begin(exynos_crtc,

							exynos_plane);

	}

}



static void exynos_crtc_atomic_flush(struct drm_crtc *crtc,

				     struct drm_crtc_state *old_crtc_state)

{

	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);

	struct drm_plane *plane;



	drm_atomic_crtc_for_each_plane(plane, crtc) {

		struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane);



		if (exynos_crtc->ops->atomic_flush)

			exynos_crtc->ops->atomic_flush(exynos_crtc,

							exynos_plane);

	}

}



static struct drm_crtc_helper_funcs exynos_crtc_helper_funcs = {

drivers/gpu/drm/exynos/exynos_drm_drv.h

+6 −0
Original line number Diff line number Diff line
@@ -87,6 +87,8 @@ struct exynos_drm_plane { 
 * @disable_vblank: specific driver callback for disabling vblank interrupt.

 * @wait_for_vblank: wait for vblank interrupt to make sure that

 *	hardware overlay is updated.

 * @atomic_begin: prepare a window to receive a update

 * @atomic_flush: mark the end of a window update

 * @update_plane: apply hardware specific overlay data to registers.

 * @disable_plane: disable hardware specific overlay.

 * @te_handler: trigger to transfer video image at the tearing effect
@@ -107,10 +109,14 @@ struct exynos_drm_crtc_ops { 
	int (*enable_vblank)(struct exynos_drm_crtc *crtc);

	void (*disable_vblank)(struct exynos_drm_crtc *crtc);

	void (*wait_for_vblank)(struct exynos_drm_crtc *crtc);

	void (*atomic_begin)(struct exynos_drm_crtc *crtc,

			      struct exynos_drm_plane *plane);

	void (*update_plane)(struct exynos_drm_crtc *crtc,

			     struct exynos_drm_plane *plane);

	void (*disable_plane)(struct exynos_drm_crtc *crtc,

			      struct exynos_drm_plane *plane);

	void (*atomic_flush)(struct exynos_drm_crtc *crtc,

			      struct exynos_drm_plane *plane);

	void (*te_handler)(struct exynos_drm_crtc *crtc);

	void (*clock_enable)(struct exynos_drm_crtc *crtc, bool enable);

};