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authorRussell King <rmk+kernel@armlinux.org.uk>2017-07-07 15:56:20 +0100
committerRussell King <rmk+kernel@armlinux.org.uk>2017-12-08 12:17:23 +0000
commit2839d45c7d92a521364347dbd023d218a5913e26 (patch)
tree1b4db4aeca88a1029f7b577bd8e767e71c3d7c86
parenteaab01307554175a004ad60728beb691cc841a8c (diff)
drm/armada: add work cancel callback
Add a work cancel callback, so that work items can add functionality to clean themselves up when they are cancelled. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
-rw-r--r--drivers/gpu/drm/armada/armada_crtc.c23
-rw-r--r--drivers/gpu/drm/armada/armada_crtc.h1
2 files changed, 17 insertions, 7 deletions
diff --git a/drivers/gpu/drm/armada/armada_crtc.c b/drivers/gpu/drm/armada/armada_crtc.c
index 4d3db441466e..f10ab0275ce7 100644
--- a/drivers/gpu/drm/armada/armada_crtc.c
+++ b/drivers/gpu/drm/armada/armada_crtc.c
@@ -216,6 +216,19 @@ static unsigned armada_drm_crtc_calc_fb(struct drm_framebuffer *fb,
return i;
}
+static void armada_drm_plane_work_call(struct armada_crtc *dcrtc,
+ struct armada_plane_work *work,
+ void (*fn)(struct armada_crtc *, struct armada_plane_work *))
+{
+ struct armada_plane *dplane = drm_to_armada_plane(work->plane);
+
+ if (fn)
+ fn(dcrtc, work);
+ drm_crtc_vblank_put(&dcrtc->crtc);
+
+ wake_up(&dplane->frame_wait);
+}
+
static void armada_drm_plane_work_run(struct armada_crtc *dcrtc,
struct drm_plane *plane)
{
@@ -223,12 +236,8 @@ static void armada_drm_plane_work_run(struct armada_crtc *dcrtc,
struct armada_plane_work *work = xchg(&dplane->work, NULL);
/* Handle any pending frame work. */
- if (work) {
- work->fn(dcrtc, work);
- drm_crtc_vblank_put(&dcrtc->crtc);
- }
-
- wake_up(&dplane->frame_wait);
+ if (work)
+ armada_drm_plane_work_call(dcrtc, work, work->fn);
}
int armada_drm_plane_work_queue(struct armada_crtc *dcrtc,
@@ -261,7 +270,7 @@ void armada_drm_plane_work_cancel(struct armada_crtc *dcrtc,
struct armada_plane_work *work = xchg(&dplane->work, NULL);
if (work)
- drm_crtc_vblank_put(&dcrtc->crtc);
+ armada_drm_plane_work_call(dcrtc, work, work->cancel);
}
static void armada_drm_crtc_complete_frame_work(struct armada_crtc *dcrtc,
diff --git a/drivers/gpu/drm/armada/armada_crtc.h b/drivers/gpu/drm/armada/armada_crtc.h
index 821c0dd21e45..c26814c2ce08 100644
--- a/drivers/gpu/drm/armada/armada_crtc.h
+++ b/drivers/gpu/drm/armada/armada_crtc.h
@@ -37,6 +37,7 @@ struct armada_variant;
struct armada_plane_work {
void (*fn)(struct armada_crtc *, struct armada_plane_work *);
+ void (*cancel)(struct armada_crtc *, struct armada_plane_work *);
struct drm_plane *plane;
};