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disp: msm: sde: flush crtc event thread before idle notification

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Flush sde crtc event thread before idle notification
to make sure that pending frame count is zero. This
allows sde encoder module to trigger power collapse
during pm_suspend scenario.

Bug: 146848315
Change-Id: Ic65a76273417c567c330e970c97183e5c0f4ad17
Signed-off-by: Dhaval Patel <pdhaval@codeaurora.org>
This commit is contained in:
Dhaval Patel
2020-02-12 11:05:19 -08:00
committed by Gerrit - the friendly Code Review server
parent 141afabada
commit f97e75d7ab
1 changed files with 8 additions and 3 deletions
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11
msm/sde/sde_kms.c
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@@ -2532,7 +2532,7 @@ end:
static void _sde_kms_pm_suspend_idle_helper(struct sde_kms *sde_kms,
struct device *dev)
{
int i, ret;
int i, ret, crtc_id = 0;
struct drm_device *ddev = dev_get_drvdata(dev);
struct drm_connector *conn;
struct drm_connector_list_iter conn_iter;
@@ -2551,12 +2551,17 @@ static void _sde_kms_pm_suspend_idle_helper(struct sde_kms *sde_kms,
ret = sde_encoder_wait_for_event(conn->encoder,
MSM_ENC_TX_COMPLETE);
if (ret && ret != -EWOULDBLOCK)
if (ret && ret != -EWOULDBLOCK) {
SDE_ERROR(
"[conn: %d] wait for commit done returned %d\n",
conn->base.id, ret);
else if (!ret)
} else if (!ret) {
crtc_id = drm_crtc_index(conn->state->crtc);
if (priv->event_thread[crtc_id].thread)
kthread_flush_worker(
&priv->event_thread[crtc_id].worker);
sde_encoder_idle_request(conn->encoder);
}
}
drm_connector_list_iter_end(&conn_iter);