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drm: rcar-du: Use DRM core's atomic commit helper 

The DRM core atomic helper now supports asynchronous commits natively.
The custom rcar-du implementation isn't needed anymore, remove it.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
This commit is contained in:
Laurent Pinchart 2017-02-10 13:30:35 +02:00
parent 15b181a309
commit a8fd12233e
1 changed files with 9 additions and 90 deletions
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99
drivers/gpu/drm/rcar-du/rcar_du_kms.c
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@ -249,18 +249,9 @@ static int rcar_du_atomic_check(struct drm_device *dev,
return rcar_du_atomic_check_planes(dev, state);
}
struct rcar_du_commit {
struct work_struct work;
struct drm_device *dev;
struct drm_atomic_state *state;
u32 crtcs;
};
static void rcar_du_atomic_complete(struct rcar_du_commit *commit)
static void rcar_du_atomic_commit_tail(struct drm_atomic_state *old_state)
{
struct drm_device *dev = commit->dev;
struct rcar_du_device *rcdu = dev->dev_private;
struct drm_atomic_state *old_state = commit->state;
struct drm_device *dev = old_state->dev;
/* Apply the atomic update. */
drm_atomic_helper_commit_modeset_disables(dev, old_state);
@ -268,98 +259,25 @@ static void rcar_du_atomic_complete(struct rcar_du_commit *commit)
drm_atomic_helper_commit_planes(dev, old_state,
DRM_PLANE_COMMIT_ACTIVE_ONLY);
drm_atomic_helper_commit_hw_done(old_state);
drm_atomic_helper_wait_for_vblanks(dev, old_state);
drm_atomic_helper_cleanup_planes(dev, old_state);
drm_atomic_state_put(old_state);
/* Complete the commit, wake up any waiter. */
spin_lock(&rcdu->commit.wait.lock);
rcdu->commit.pending &= ~commit->crtcs;
wake_up_all_locked(&rcdu->commit.wait);
spin_unlock(&rcdu->commit.wait.lock);
kfree(commit);
}
static void rcar_du_atomic_work(struct work_struct *work)
{
struct rcar_du_commit *commit =
container_of(work, struct rcar_du_commit, work);
rcar_du_atomic_complete(commit);
}
static int rcar_du_atomic_commit(struct drm_device *dev,
struct drm_atomic_state *state,
bool nonblock)
{
struct rcar_du_device *rcdu = dev->dev_private;
struct rcar_du_commit *commit;
struct drm_crtc *crtc;
struct drm_crtc_state *crtc_state;
unsigned int i;
int ret;
ret = drm_atomic_helper_prepare_planes(dev, state);
if (ret)
return ret;
/* Allocate the commit object. */
commit = kzalloc(sizeof(*commit), GFP_KERNEL);
if (commit == NULL) {
ret = -ENOMEM;
goto error;
}
INIT_WORK(&commit->work, rcar_du_atomic_work);
commit->dev = dev;
commit->state = state;
/* Wait until all affected CRTCs have completed previous commits and
* mark them as pending.
*/
for_each_crtc_in_state(state, crtc, crtc_state, i)
commit->crtcs |= drm_crtc_mask(crtc);
spin_lock(&rcdu->commit.wait.lock);
ret = wait_event_interruptible_locked(rcdu->commit.wait,
!(rcdu->commit.pending & commit->crtcs));
if (ret == 0)
rcdu->commit.pending |= commit->crtcs;
spin_unlock(&rcdu->commit.wait.lock);
if (ret) {
kfree(commit);
goto error;
}
/* Swap the state, this is the point of no return. */
drm_atomic_helper_swap_state(state, true);
drm_atomic_state_get(state);
if (nonblock)
schedule_work(&commit->work);
else
rcar_du_atomic_complete(commit);
return 0;
error:
drm_atomic_helper_cleanup_planes(dev, state);
return ret;
}
/* -----------------------------------------------------------------------------
* Initialization
*/
static const struct drm_mode_config_helper_funcs rcar_du_mode_config_helper = {
.atomic_commit_tail = rcar_du_atomic_commit_tail,
};
static const struct drm_mode_config_funcs rcar_du_mode_config_funcs = {
.fb_create = rcar_du_fb_create,
.output_poll_changed = rcar_du_output_poll_changed,
.atomic_check = rcar_du_atomic_check,
.atomic_commit = rcar_du_atomic_commit,
.atomic_commit = drm_atomic_helper_commit,
};
static int rcar_du_encoders_init_one(struct rcar_du_device *rcdu,
@ -561,6 +479,7 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu)
dev->mode_config.max_width = 4095;
dev->mode_config.max_height = 2047;
dev->mode_config.funcs = &rcar_du_mode_config_funcs;
dev->mode_config.helper_private = &rcar_du_mode_config_helper;
rcdu->num_crtcs = rcdu->info->num_crtcs;