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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: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Gustavo Padovan 2015-08-24 20:36:59 +09:00 committed by Inki Dae
parent fc75f7107a
commit d9220d4733
2 changed files with 25 additions and 0 deletions
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19
drivers/gpu/drm/exynos/exynos_drm_crtc.c
View File

@ -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 = {

6
drivers/gpu/drm/exynos/exynos_drm_drv.h
View File

@ -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);
};