[PATCH] drm/msm/dsi: drop the hpd worker

[Dmitry Baryshkov]

It makes no sense to have the HPD worker in the MSM DSI driver anymore.
It is only queued from the dsi_host_attach/detach() callbacks, where
it plays no useful role. Either way the panel or next bridge will be
present and will report it's status directly.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
---
 drivers/gpu/drm/msm/dsi/dsi_host.c | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index a34078497af1..43bf84e92a7c 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -144,7 +144,6 @@ struct msm_dsi_host {
 
 	u32 err_work_state;
 	struct work_struct err_work;
-	struct work_struct hpd_work;
 	struct workqueue_struct *workqueue;
 
 	/* DSI 6G TX buffer*/
@@ -1500,14 +1499,6 @@ static int dsi_cmds2buf_tx(struct msm_dsi_host *msm_host,
 	return len;
 }
 
-static void dsi_hpd_worker(struct work_struct *work)
-{
-	struct msm_dsi_host *msm_host =
-		container_of(work, struct msm_dsi_host, hpd_work);
-
-	drm_helper_hpd_irq_event(msm_host->dev);
-}
-
 static void dsi_err_worker(struct work_struct *work)
 {
 	struct msm_dsi_host *msm_host =
@@ -1697,8 +1688,6 @@ static int dsi_host_attach(struct mipi_dsi_host *host,
 		return ret;
 
 	DBG("id=%d", msm_host->id);
-	if (msm_host->dev)
-		queue_work(msm_host->workqueue, &msm_host->hpd_work);
 
 	return 0;
 }
@@ -1713,8 +1702,6 @@ static int dsi_host_detach(struct mipi_dsi_host *host,
 	msm_host->device_node = NULL;
 
 	DBG("id=%d", msm_host->id);
-	if (msm_host->dev)
-		queue_work(msm_host->workqueue, &msm_host->hpd_work);
 
 	return 0;
 }
@@ -2126,7 +2113,6 @@ int msm_dsi_host_init(struct msm_dsi *msm_dsi)
 	/* setup workqueue */
 	msm_host->workqueue = alloc_ordered_workqueue("dsi_drm_work", 0);
 	INIT_WORK(&msm_host->err_work, dsi_err_worker);
-	INIT_WORK(&msm_host->hpd_work, dsi_hpd_worker);
 
 	msm_dsi->id = msm_host->id;
 
-- 
2.35.1