Disp: Snapshot change for lahaina display driver

This snapshot change adds downstream support
for drm 5.x+(msm_lahaina branch) linux kernel.

Change-Id: Ia691c95da155a00e449c91a2f1a5b20a8e71aed4
Signed-off-by: Narendra Muppalla <NarendraM@codeaurora.org>

rotator/sde_rotator_dev.c

@@ -55,8 +55,6 @@
 
 static void sde_rotator_submit_handler(struct kthread_work *work);
 static void sde_rotator_retire_handler(struct kthread_work *work);
-static void sde_rotator_pm_qos_request(struct sde_rotator_device *rot_dev,
-					 bool add_request);
 #ifdef CONFIG_COMPAT
 static long sde_rotator_compat_ioctl32(struct file *file,
 	unsigned int cmd, unsigned long arg);
@@ -1001,8 +999,6 @@ struct sde_rotator_ctx *sde_rotator_ctx_open(
 		SDEDEV_DBG(ctx->rot_dev->dev, "timeline is not available\n");
 
 	sde_rot_mgr_lock(rot_dev->mgr);
-	sde_rotator_pm_qos_request(rot_dev,
-				 SDE_ROTATOR_ADD_REQUEST);
 	ret = sde_rotator_session_open(rot_dev->mgr, &ctx->private,
 			ctx->session_id, &ctx->work_queue);
 	if (ret < 0) {
@@ -1127,8 +1123,6 @@ static int sde_rotator_ctx_release(struct sde_rotator_ctx *ctx,
 	}
 	SDEDEV_DBG(rot_dev->dev, "release session s:%d\n", session_id);
 	sde_rot_mgr_lock(rot_dev->mgr);
-	sde_rotator_pm_qos_request(rot_dev,
-			SDE_ROTATOR_REMOVE_REQUEST);
 	sde_rotator_session_close(rot_dev->mgr, ctx->private, session_id);
 	sde_rot_mgr_unlock(rot_dev->mgr);
 	SDEDEV_DBG(rot_dev->dev, "release retire work s:%d\n", session_id);
@@ -1243,104 +1237,6 @@ static bool sde_rotator_is_request_retired(struct sde_rotator_request *request)
 	return retire_delta >= 0;
 }
 
-static void sde_rotator_pm_qos_remove(struct sde_rot_data_type *rot_mdata)
-{
-	struct pm_qos_request *req;
-	u32 cpu_mask;
-
-	if (!rot_mdata) {
-		SDEROT_DBG("invalid rot device or context\n");
-		return;
-	}
-
-	cpu_mask = rot_mdata->rot_pm_qos_cpu_mask;
-
-	if (!cpu_mask)
-		return;
-
-	req = &rot_mdata->pm_qos_rot_cpu_req;
-	pm_qos_remove_request(req);
-}
-
-void sde_rotator_pm_qos_add(struct sde_rot_data_type *rot_mdata)
-{
-	struct pm_qos_request *req;
-	u32 cpu_mask;
-	int cpu;
-
-	if (!rot_mdata) {
-		SDEROT_DBG("invalid rot device or context\n");
-		return;
-	}
-
-	cpu_mask = rot_mdata->rot_pm_qos_cpu_mask;
-
-	if (!cpu_mask)
-		return;
-
-	req = &rot_mdata->pm_qos_rot_cpu_req;
-	req->type = PM_QOS_REQ_AFFINE_CORES;
-	cpumask_empty(&req->cpus_affine);
-	for_each_possible_cpu(cpu) {
-		if ((1 << cpu) & cpu_mask)
-			cpumask_set_cpu(cpu, &req->cpus_affine);
-	}
-	pm_qos_add_request(req, PM_QOS_CPU_DMA_LATENCY,
-		PM_QOS_DEFAULT_VALUE);
-
-	SDEROT_DBG("rotator pmqos add mask %x latency %x\n",
-		rot_mdata->rot_pm_qos_cpu_mask,
-		rot_mdata->rot_pm_qos_cpu_dma_latency);
-}
-
-static void sde_rotator_pm_qos_request(struct sde_rotator_device *rot_dev,
-					 bool add_request)
-{
-	u32 cpu_mask;
-	u32 cpu_dma_latency;
-	bool changed = false;
-
-	if (!rot_dev) {
-		SDEROT_DBG("invalid rot device or context\n");
-		return;
-	}
-
-	cpu_mask = rot_dev->mdata->rot_pm_qos_cpu_mask;
-	cpu_dma_latency = rot_dev->mdata->rot_pm_qos_cpu_dma_latency;
-
-	if (!cpu_mask)
-		return;
-
-	if (add_request) {
-		if (rot_dev->mdata->rot_pm_qos_cpu_count == 0)
-			changed = true;
-		rot_dev->mdata->rot_pm_qos_cpu_count++;
-	} else {
-		if (rot_dev->mdata->rot_pm_qos_cpu_count != 0) {
-			rot_dev->mdata->rot_pm_qos_cpu_count--;
-			if (rot_dev->mdata->rot_pm_qos_cpu_count == 0)
-				changed = true;
-		} else {
-			SDEROT_DBG("%s: ref_count is not balanced\n",
-				__func__);
-		}
-	}
-
-	if (!changed)
-		return;
-
-	SDEROT_EVTLOG(add_request, cpu_mask, cpu_dma_latency);
-
-	if (!add_request) {
-		pm_qos_update_request(&rot_dev->mdata->pm_qos_rot_cpu_req,
-			PM_QOS_DEFAULT_VALUE);
-		return;
-	}
-
-	pm_qos_update_request(&rot_dev->mdata->pm_qos_rot_cpu_req,
-		cpu_dma_latency);
-}
-
 /*
  * sde_rotator_inline_open - open inline rotator session
  * @pdev: Pointer to rotator platform device
@@ -3689,7 +3585,6 @@ static int sde_rotator_remove(struct platform_device *pdev)
 		return 0;
 	}
 
-	sde_rotator_pm_qos_remove(rot_dev->mdata);
 	for (i = MAX_ROT_OPEN_SESSION - 1; i >= 0; i--)
 		kthread_stop(rot_dev->rot_thread[i]);
 	sde_rotator_destroy_debugfs(rot_dev->debugfs_root);