5 files changed, 39 insertions, 30 deletions

diff --git a/drivers/media/platform/s5p-fimc/Kconfig b/drivers/media/platform/s5p-fimc/Kconfig
index 8f090a8f270e..c16b20d86ed2 100644
--- a/drivers/media/platform/s5p-fimc/Kconfig
+++ b/drivers/media/platform/s5p-fimc/Kconfig
@@ -24,6 +24,7 @@ config VIDEO_S5P_FIMC
 config VIDEO_S5P_MIPI_CSIS
 	tristate "S5P/EXYNOS MIPI-CSI2 receiver (MIPI-CSIS) driver"
 	depends on REGULATOR
+	select S5P_SETUP_MIPIPHY
 	help
 	  This is a V4L2 driver for Samsung S5P and EXYNOS4 SoC MIPI-CSI2
 	  receiver (MIPI-CSIS) devices.
diff --git a/drivers/media/platform/s5p-fimc/fimc-capture.c b/drivers/media/platform/s5p-fimc/fimc-capture.c
index 367efd164d0f..891ee873c62b 100644
--- a/drivers/media/platform/s5p-fimc/fimc-capture.c
+++ b/drivers/media/platform/s5p-fimc/fimc-capture.c
@@ -556,8 +556,7 @@ static int fimc_capture_close(struct file *file)
 
 	dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
 
-	if (mutex_lock_interruptible(&fimc->lock))
-		return -ERESTARTSYS;
+	mutex_lock(&fimc->lock);
 
 	if (--fimc->vid_cap.refcnt == 0) {
 		clear_bit(ST_CAPT_BUSY, &fimc->state);
@@ -1736,7 +1735,9 @@ static int fimc_register_capture_device(struct fimc_dev *fimc,
 	q->mem_ops = &vb2_dma_contig_memops;
 	q->buf_struct_size = sizeof(struct fimc_vid_buffer);
 
-	vb2_queue_init(q);
+	ret = vb2_queue_init(q);
+	if (ret)
+		goto err_ent;
 
 	vid_cap->vd_pad.flags = MEDIA_PAD_FL_SINK;
 	ret = media_entity_init(&vfd->entity, 1, &vid_cap->vd_pad, 0);
@@ -1772,9 +1773,13 @@ static int fimc_capture_subdev_registered(struct v4l2_subdev *sd)
 	if (ret)
 		return ret;
 
+	fimc->pipeline_ops = v4l2_get_subdev_hostdata(sd);
+
 	ret = fimc_register_capture_device(fimc, sd->v4l2_dev);
-	if (ret)
+	if (ret) {
 		fimc_unregister_m2m_device(fimc);
+		fimc->pipeline_ops = NULL;
+	}
 
 	return ret;
 }
@@ -1791,6 +1796,7 @@ static void fimc_capture_subdev_unregistered(struct v4l2_subdev *sd)
 	if (video_is_registered(&fimc->vid_cap.vfd)) {
 		video_unregister_device(&fimc->vid_cap.vfd);
 		media_entity_cleanup(&fimc->vid_cap.vfd.entity);
+		fimc->pipeline_ops = NULL;
 	}
 	kfree(fimc->vid_cap.ctx);
 	fimc->vid_cap.ctx = NULL;
diff --git a/drivers/media/platform/s5p-fimc/fimc-lite.c b/drivers/media/platform/s5p-fimc/fimc-lite.c
index 70bcf39de879..1b309a72f09f 100644
--- a/drivers/media/platform/s5p-fimc/fimc-lite.c
+++ b/drivers/media/platform/s5p-fimc/fimc-lite.c
@@ -491,8 +491,7 @@ static int fimc_lite_close(struct file *file)
 	struct fimc_lite *fimc = video_drvdata(file);
 	int ret;
 
-	if (mutex_lock_interruptible(&fimc->lock))
-		return -ERESTARTSYS;
+	mutex_lock(&fimc->lock);
 
 	if (--fimc->ref_count == 0 && fimc->out_path == FIMC_IO_DMA) {
 		clear_bit(ST_FLITE_IN_USE, &fimc->state);
@@ -1253,7 +1252,9 @@ static int fimc_lite_subdev_registered(struct v4l2_subdev *sd)
 	q->buf_struct_size = sizeof(struct flite_buffer);
 	q->drv_priv = fimc;
 
-	vb2_queue_init(q);
+	ret = vb2_queue_init(q);
+	if (ret < 0)
+		return ret;
 
 	fimc->vd_pad.flags = MEDIA_PAD_FL_SINK;
 	ret = media_entity_init(&vfd->entity, 1, &fimc->vd_pad, 0);
@@ -1261,10 +1262,12 @@ static int fimc_lite_subdev_registered(struct v4l2_subdev *sd)
 		return ret;
 
 	video_set_drvdata(vfd, fimc);
+	fimc->pipeline_ops = v4l2_get_subdev_hostdata(sd);
 
 	ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1);
 	if (ret < 0) {
 		media_entity_cleanup(&vfd->entity);
+		fimc->pipeline_ops = NULL;
 		return ret;
 	}
 
@@ -1283,6 +1286,7 @@ static void fimc_lite_subdev_unregistered(struct v4l2_subdev *sd)
 	if (video_is_registered(&fimc->vfd)) {
 		video_unregister_device(&fimc->vfd);
 		media_entity_cleanup(&fimc->vfd.entity);
+		fimc->pipeline_ops = NULL;
 	}
 }
 
diff --git a/drivers/media/platform/s5p-fimc/fimc-m2m.c b/drivers/media/platform/s5p-fimc/fimc-m2m.c
index 4500e44f6857..62afed3162ea 100644
--- a/drivers/media/platform/s5p-fimc/fimc-m2m.c
+++ b/drivers/media/platform/s5p-fimc/fimc-m2m.c
@@ -718,8 +718,7 @@ static int fimc_m2m_release(struct file *file)
 	dbg("pid: %d, state: 0x%lx, refcnt= %d",
 		task_pid_nr(current), fimc->state, fimc->m2m.refcnt);
 
-	if (mutex_lock_interruptible(&fimc->lock))
-		return -ERESTARTSYS;
+	mutex_lock(&fimc->lock);
 
 	v4l2_m2m_ctx_release(ctx->m2m_ctx);
 	fimc_ctrls_delete(ctx);
diff --git a/drivers/media/platform/s5p-fimc/fimc-mdevice.c b/drivers/media/platform/s5p-fimc/fimc-mdevice.c
index 80ada5882f62..0531ab70a94c 100644
--- a/drivers/media/platform/s5p-fimc/fimc-mdevice.c
+++ b/drivers/media/platform/s5p-fimc/fimc-mdevice.c
@@ -343,53 +343,50 @@ static int fimc_md_register_sensor_entities(struct fimc_md *fmd)
 static int fimc_register_callback(struct device *dev, void *p)
 {
 	struct fimc_dev *fimc = dev_get_drvdata(dev);
-	struct v4l2_subdev *sd = &fimc->vid_cap.subdev;
+	struct v4l2_subdev *sd;
 	struct fimc_md *fmd = p;
-	int ret = 0;
-
-	if (!fimc || !fimc->pdev)
-		return 0;
+	int ret;
 
-	if (fimc->pdev->id < 0 || fimc->pdev->id >= FIMC_MAX_DEVS)
+	if (fimc == NULL || fimc->id >= FIMC_MAX_DEVS)
 		return 0;
 
-	fimc->pipeline_ops = &fimc_pipeline_ops;
-	fmd->fimc[fimc->pdev->id] = fimc;
+	sd = &fimc->vid_cap.subdev;
 	sd->grp_id = FIMC_GROUP_ID;
+	v4l2_set_subdev_hostdata(sd, (void *)&fimc_pipeline_ops);
 
 	ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd);
 	if (ret) {
 		v4l2_err(&fmd->v4l2_dev, "Failed to register FIMC.%d (%d)\n",
 			 fimc->id, ret);
+		return ret;
 	}
 
-	return ret;
+	fmd->fimc[fimc->id] = fimc;
+	return 0;
 }
 
 static int fimc_lite_register_callback(struct device *dev, void *p)
 {
 	struct fimc_lite *fimc = dev_get_drvdata(dev);
-	struct v4l2_subdev *sd = &fimc->subdev;
 	struct fimc_md *fmd = p;
 	int ret;
 
-	if (fimc == NULL)
+	if (fimc == NULL || fimc->index >= FIMC_LITE_MAX_DEVS)
 		return 0;
 
-	if (fimc->index >= FIMC_LITE_MAX_DEVS)
-		return 0;
-
-	fimc->pipeline_ops = &fimc_pipeline_ops;
-	fmd->fimc_lite[fimc->index] = fimc;
-	sd->grp_id = FLITE_GROUP_ID;
+	fimc->subdev.grp_id = FLITE_GROUP_ID;
+	v4l2_set_subdev_hostdata(&fimc->subdev, (void *)&fimc_pipeline_ops);
 
-	ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd);
+	ret = v4l2_device_register_subdev(&fmd->v4l2_dev, &fimc->subdev);
 	if (ret) {
 		v4l2_err(&fmd->v4l2_dev,
 			 "Failed to register FIMC-LITE.%d (%d)\n",
 			 fimc->index, ret);
+		return ret;
 	}
-	return ret;
+
+	fmd->fimc_lite[fimc->index] = fimc;
+	return 0;
 }
 
 static int csis_register_callback(struct device *dev, void *p)
@@ -407,10 +404,12 @@ static int csis_register_callback(struct device *dev, void *p)
 	v4l2_info(sd, "csis%d sd: %s\n", pdev->id, sd->name);
 
 	id = pdev->id < 0 ? 0 : pdev->id;
-	fmd->csis[id].sd = sd;
 	sd->grp_id = CSIS_GROUP_ID;
+
 	ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd);
-	if (ret)
+	if (!ret)
+		fmd->csis[id].sd = sd;
+	else
 		v4l2_err(&fmd->v4l2_dev,
 			 "Failed to register CSIS subdevice: %d\n", ret);
 	return ret;