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Commit f97e75d7 authored by Dhaval Patel's avatar Dhaval Patel Committed by Gerrit - the friendly Code Review server
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disp: msm: sde: flush crtc event thread before idle notification 



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: default avatarDhaval Patel <pdhaval@codeaurora.org>
parent 141afaba

msm/sde/sde_kms.c

+8 −3
Original line number Diff line number Diff line
@@ -2532,7 +2532,7 @@ static void _sde_kms_null_commit(struct drm_device *dev, 
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;
@@ -2551,13 +2551,18 @@ 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);



	for (i = 0; i < priv->num_crtcs; i++) {