Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless

8 files changed, 134 insertions, 79 deletions

diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c
index 725812aa0c3..8e413dd3c0b 100644
--- a/drivers/media/video/s5p-fimc/fimc-capture.c
+++ b/drivers/media/video/s5p-fimc/fimc-capture.c
@@ -480,48 +480,59 @@ static int fimc_capture_set_default_format(struct fimc_dev *fimc);
 static int fimc_capture_open(struct file *file)
 {
 	struct fimc_dev *fimc = video_drvdata(file);
-	int ret;
+	int ret = -EBUSY;
 
 	dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
 
+	if (mutex_lock_interruptible(&fimc->lock))
+		return -ERESTARTSYS;
+
 	if (fimc_m2m_active(fimc))
-		return -EBUSY;
+		goto unlock;
 
 	set_bit(ST_CAPT_BUSY, &fimc->state);
 	ret = pm_runtime_get_sync(&fimc->pdev->dev);
 	if (ret < 0)
-		return ret;
+		goto unlock;
 
 	ret = v4l2_fh_open(file);
-	if (ret)
-		return ret;
-
-	if (++fimc->vid_cap.refcnt != 1)
-		return 0;
+	if (ret) {
+		pm_runtime_put(&fimc->pdev->dev);
+		goto unlock;
+	}
 
-	ret = fimc_pipeline_initialize(&fimc->pipeline,
+	if (++fimc->vid_cap.refcnt == 1) {
+		ret = fimc_pipeline_initialize(&fimc->pipeline,
 				       &fimc->vid_cap.vfd->entity, true);
-	if (ret < 0) {
-		clear_bit(ST_CAPT_BUSY, &fimc->state);
-		pm_runtime_put_sync(&fimc->pdev->dev);
-		fimc->vid_cap.refcnt--;
-		v4l2_fh_release(file);
-		return ret;
-	}
-	ret = fimc_capture_ctrls_create(fimc);
 
-	if (!ret && !fimc->vid_cap.user_subdev_api)
-		ret = fimc_capture_set_default_format(fimc);
+		if (!ret && !fimc->vid_cap.user_subdev_api)
+			ret = fimc_capture_set_default_format(fimc);
 
+		if (!ret)
+			ret = fimc_capture_ctrls_create(fimc);
+
+		if (ret < 0) {
+			clear_bit(ST_CAPT_BUSY, &fimc->state);
+			pm_runtime_put_sync(&fimc->pdev->dev);
+			fimc->vid_cap.refcnt--;
+			v4l2_fh_release(file);
+		}
+	}
+unlock:
+	mutex_unlock(&fimc->lock);
 	return ret;
 }
 
 static int fimc_capture_close(struct file *file)
 {
 	struct fimc_dev *fimc = video_drvdata(file);
+	int ret;
 
 	dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
 
+	if (mutex_lock_interruptible(&fimc->lock))
+		return -ERESTARTSYS;
+
 	if (--fimc->vid_cap.refcnt == 0) {
 		clear_bit(ST_CAPT_BUSY, &fimc->state);
 		fimc_stop_capture(fimc, false);
@@ -535,22 +546,40 @@ static int fimc_capture_close(struct file *file)
 		vb2_queue_release(&fimc->vid_cap.vbq);
 		fimc_ctrls_delete(fimc->vid_cap.ctx);
 	}
-	return v4l2_fh_release(file);
+
+	ret = v4l2_fh_release(file);
+
+	mutex_unlock(&fimc->lock);
+	return ret;
 }
 
 static unsigned int fimc_capture_poll(struct file *file,
 				      struct poll_table_struct *wait)
 {
 	struct fimc_dev *fimc = video_drvdata(file);
+	int ret;
 
-	return vb2_poll(&fimc->vid_cap.vbq, file, wait);
+	if (mutex_lock_interruptible(&fimc->lock))
+		return POLL_ERR;
+
+	ret = vb2_poll(&fimc->vid_cap.vbq, file, wait);
+	mutex_unlock(&fimc->lock);
+
+	return ret;
 }
 
 static int fimc_capture_mmap(struct file *file, struct vm_area_struct *vma)
 {
 	struct fimc_dev *fimc = video_drvdata(file);
+	int ret;
 
-	return vb2_mmap(&fimc->vid_cap.vbq, vma);
+	if (mutex_lock_interruptible(&fimc->lock))
+		return -ERESTARTSYS;
+
+	ret = vb2_mmap(&fimc->vid_cap.vbq, vma);
+	mutex_unlock(&fimc->lock);
+
+	return ret;
 }
 
 static const struct v4l2_file_operations fimc_capture_fops = {
@@ -658,7 +687,7 @@ static void fimc_capture_try_selection(struct fimc_ctx *ctx,
 		r->left   = r->top = 0;
 		return;
 	}
-	if (target == V4L2_SEL_TGT_COMPOSE_ACTIVE) {
+	if (target == V4L2_SEL_TGT_COMPOSE) {
 		if (ctx->rotation != 90 && ctx->rotation != 270)
 			align_h = 1;
 		max_sc_h = min(SCALER_MAX_HRATIO, 1 << (ffs(sink->width) - 3));
@@ -685,7 +714,7 @@ static void fimc_capture_try_selection(struct fimc_ctx *ctx,
 		      rotate ? sink->f_height : sink->f_width);
 	max_h = min_t(u32, FIMC_CAMIF_MAX_HEIGHT, sink->f_height);
 
-	if (target == V4L2_SEL_TGT_COMPOSE_ACTIVE) {
+	if (target == V4L2_SEL_TGT_COMPOSE) {
 		min_w = min_t(u32, max_w, sink->f_width / max_sc_h);
 		min_h = min_t(u32, max_h, sink->f_height / max_sc_v);
 		if (rotate) {
@@ -1146,9 +1175,9 @@ static int fimc_cap_g_selection(struct file *file, void *fh,
 		s->r.height = f->o_height;
 		return 0;
 
-	case V4L2_SEL_TGT_COMPOSE_ACTIVE:
+	case V4L2_SEL_TGT_COMPOSE:
 		f = &ctx->d_frame;
-	case V4L2_SEL_TGT_CROP_ACTIVE:
+	case V4L2_SEL_TGT_CROP:
 		s->r.left = f->offs_h;
 		s->r.top = f->offs_v;
 		s->r.width = f->width;
@@ -1160,7 +1189,7 @@ static int fimc_cap_g_selection(struct file *file, void *fh,
 }
 
 /* Return 1 if rectangle a is enclosed in rectangle b, or 0 otherwise. */
-int enclosed_rectangle(struct v4l2_rect *a, struct v4l2_rect *b)
+static int enclosed_rectangle(struct v4l2_rect *a, struct v4l2_rect *b)
 {
 	if (a->left < b->left || a->top < b->top)
 		return 0;
@@ -1184,9 +1213,9 @@ static int fimc_cap_s_selection(struct file *file, void *fh,
 	if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 		return -EINVAL;
 
-	if (s->target == V4L2_SEL_TGT_COMPOSE_ACTIVE)
+	if (s->target == V4L2_SEL_TGT_COMPOSE)
 		f = &ctx->d_frame;
-	else if (s->target == V4L2_SEL_TGT_CROP_ACTIVE)
+	else if (s->target == V4L2_SEL_TGT_CROP)
 		f = &ctx->s_frame;
 	else
 		return -EINVAL;
@@ -1428,9 +1457,9 @@ static int fimc_subdev_get_selection(struct v4l2_subdev *sd,
 	mutex_lock(&fimc->lock);
 
 	switch (sel->target) {
-	case V4L2_SUBDEV_SEL_TGT_COMPOSE_BOUNDS:
+	case V4L2_SEL_TGT_COMPOSE_BOUNDS:
 		f = &ctx->d_frame;
-	case V4L2_SUBDEV_SEL_TGT_CROP_BOUNDS:
+	case V4L2_SEL_TGT_CROP_BOUNDS:
 		r->width = f->o_width;
 		r->height = f->o_height;
 		r->left = 0;
@@ -1438,10 +1467,10 @@ static int fimc_subdev_get_selection(struct v4l2_subdev *sd,
 		mutex_unlock(&fimc->lock);
 		return 0;
 
-	case V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL:
+	case V4L2_SEL_TGT_CROP:
 		try_sel = v4l2_subdev_get_try_crop(fh, sel->pad);
 		break;
-	case V4L2_SUBDEV_SEL_TGT_COMPOSE_ACTUAL:
+	case V4L2_SEL_TGT_COMPOSE:
 		try_sel = v4l2_subdev_get_try_compose(fh, sel->pad);
 		f = &ctx->d_frame;
 		break;
@@ -1482,12 +1511,12 @@ static int fimc_subdev_set_selection(struct v4l2_subdev *sd,
 		return -EINVAL;
 
 	mutex_lock(&fimc->lock);
-	fimc_capture_try_selection(ctx, r, V4L2_SEL_TGT_CROP_ACTIVE);
+	fimc_capture_try_selection(ctx, r, V4L2_SEL_TGT_CROP);
 
 	switch (sel->target) {
-	case V4L2_SUBDEV_SEL_TGT_COMPOSE_BOUNDS:
+	case V4L2_SEL_TGT_COMPOSE_BOUNDS:
 		f = &ctx->d_frame;
-	case V4L2_SUBDEV_SEL_TGT_CROP_BOUNDS:
+	case V4L2_SEL_TGT_CROP_BOUNDS:
 		r->width = f->o_width;
 		r->height = f->o_height;
 		r->left = 0;
@@ -1495,10 +1524,10 @@ static int fimc_subdev_set_selection(struct v4l2_subdev *sd,
 		mutex_unlock(&fimc->lock);
 		return 0;
 
-	case V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL:
+	case V4L2_SEL_TGT_CROP:
 		try_sel = v4l2_subdev_get_try_crop(fh, sel->pad);
 		break;
-	case V4L2_SUBDEV_SEL_TGT_COMPOSE_ACTUAL:
+	case V4L2_SEL_TGT_COMPOSE:
 		try_sel = v4l2_subdev_get_try_compose(fh, sel->pad);
 		f = &ctx->d_frame;
 		break;
@@ -1514,7 +1543,7 @@ static int fimc_subdev_set_selection(struct v4l2_subdev *sd,
 		set_frame_crop(f, r->left, r->top, r->width, r->height);
 		set_bit(ST_CAPT_APPLY_CFG, &fimc->state);
 		spin_unlock_irqrestore(&fimc->slock, flags);
-		if (sel->target == V4L2_SUBDEV_SEL_TGT_COMPOSE_ACTUAL)
+		if (sel->target == V4L2_SEL_TGT_COMPOSE)
 			ctx->state |= FIMC_COMPOSE;
 	}
 
@@ -1589,10 +1618,7 @@ static int fimc_register_capture_device(struct fimc_dev *fimc,
 	vfd->minor	= -1;
 	vfd->release	= video_device_release;
 	vfd->lock	= &fimc->lock;
-	/* Locking in file operations other than ioctl should be done
-	   by the driver, not the V4L2 core.
-	   This driver needs auditing so that this flag can be removed. */
-	set_bit(V4L2_FL_LOCK_ALL_FOPS, &vfd->flags);
+
 	video_set_drvdata(vfd, fimc);
 
 	vid_cap = &fimc->vid_cap;
diff --git a/drivers/media/video/s5p-fimc/fimc-core.c b/drivers/media/video/s5p-fimc/fimc-core.c
index a4646ca1d56..1a445404e73 100644
--- a/drivers/media/video/s5p-fimc/fimc-core.c
+++ b/drivers/media/video/s5p-fimc/fimc-core.c
@@ -463,7 +463,7 @@ void fimc_prepare_dma_offset(struct fimc_ctx *ctx, struct fimc_frame *f)
 	    f->fmt->color, f->dma_offset.y_h, f->dma_offset.y_v);
 }
 
-int fimc_set_color_effect(struct fimc_ctx *ctx, enum v4l2_colorfx colorfx)
+static int fimc_set_color_effect(struct fimc_ctx *ctx, enum v4l2_colorfx colorfx)
 {
 	struct fimc_effect *effect = &ctx->effect;
 
diff --git a/drivers/media/video/s5p-fimc/fimc-core.h b/drivers/media/video/s5p-fimc/fimc-core.h
index 95b27ae5cf2..808ccc62184 100644
--- a/drivers/media/video/s5p-fimc/fimc-core.h
+++ b/drivers/media/video/s5p-fimc/fimc-core.h
@@ -27,9 +27,6 @@
 #include <media/v4l2-mediabus.h>
 #include <media/s5p_fimc.h>
 
-#define err(fmt, args...) \
-	printk(KERN_ERR "%s:%d: " fmt "\n", __func__, __LINE__, ##args)
-
 #define dbg(fmt, args...) \
 	pr_debug("%s:%d: " fmt "\n", __func__, __LINE__, ##args)
 
diff --git a/drivers/media/video/s5p-fimc/fimc-lite-reg.c b/drivers/media/video/s5p-fimc/fimc-lite-reg.c
index 419adfb7cdf..f996e94873f 100644
--- a/drivers/media/video/s5p-fimc/fimc-lite-reg.c
+++ b/drivers/media/video/s5p-fimc/fimc-lite-reg.c
@@ -215,7 +215,7 @@ void flite_hw_set_camera_bus(struct fimc_lite *dev,
 	flite_hw_set_camera_port(dev, s_info->mux_id);
 }
 
-void flite_hw_set_out_order(struct fimc_lite *dev, struct flite_frame *f)
+static void flite_hw_set_out_order(struct fimc_lite *dev, struct flite_frame *f)
 {
 	static const u32 pixcode[4][2] = {
 		{ V4L2_MBUS_FMT_YUYV8_2X8, FLITE_REG_CIODMAFMT_YCBYCR },
diff --git a/drivers/media/video/s5p-fimc/fimc-lite.c b/drivers/media/video/s5p-fimc/fimc-lite.c
index 74ff310db30..c5b57e805b6 100644
--- a/drivers/media/video/s5p-fimc/fimc-lite.c
+++ b/drivers/media/video/s5p-fimc/fimc-lite.c
@@ -902,7 +902,7 @@ static int fimc_lite_g_selection(struct file *file, void *fh,
 		sel->r.height = f->f_height;
 		return 0;
 
-	case V4L2_SEL_TGT_COMPOSE_ACTIVE:
+	case V4L2_SEL_TGT_COMPOSE:
 		sel->r = f->rect;
 		return 0;
 	}
@@ -919,7 +919,7 @@ static int fimc_lite_s_selection(struct file *file, void *fh,
 	unsigned long flags;
 
 	if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE ||
-	    sel->target != V4L2_SEL_TGT_COMPOSE_ACTIVE)
+	    sel->target != V4L2_SEL_TGT_COMPOSE)
 		return -EINVAL;
 
 	fimc_lite_try_compose(fimc, &rect);
@@ -1117,9 +1117,9 @@ static int fimc_lite_subdev_get_selection(struct v4l2_subdev *sd,
 	struct fimc_lite *fimc = v4l2_get_subdevdata(sd);
 	struct flite_frame *f = &fimc->inp_frame;
 
-	if ((sel->target != V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL &&
-	     sel->target != V4L2_SUBDEV_SEL_TGT_CROP_BOUNDS) ||
-	    sel->pad != FLITE_SD_PAD_SINK)
+	if ((sel->target != V4L2_SEL_TGT_CROP &&
+	     sel->target != V4L2_SEL_TGT_CROP_BOUNDS) ||
+	     sel->pad != FLITE_SD_PAD_SINK)
 		return -EINVAL;
 
 	if (sel->which == V4L2_SUBDEV_FORMAT_TRY) {
@@ -1128,7 +1128,7 @@ static int fimc_lite_subdev_get_selection(struct v4l2_subdev *sd,
 	}
 
 	mutex_lock(&fimc->lock);
-	if (sel->target == V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL) {
+	if (sel->target == V4L2_SEL_TGT_CROP) {
 		sel->r = f->rect;
 	} else {
 		sel->r.left = 0;
@@ -1153,8 +1153,7 @@ static int fimc_lite_subdev_set_selection(struct v4l2_subdev *sd,
 	struct flite_frame *f = &fimc->inp_frame;
 	int ret = 0;
 
-	if (sel->target != V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL ||
-	    sel->pad != FLITE_SD_PAD_SINK)
+	if (sel->target != V4L2_SEL_TGT_CROP || sel->pad != FLITE_SD_PAD_SINK)
 		return -EINVAL;
 
 	mutex_lock(&fimc->lock);
diff --git a/drivers/media/video/s5p-fimc/fimc-m2m.c b/drivers/media/video/s5p-fimc/fimc-m2m.c
index 4c58e057096..c587011d80e 100644
--- a/drivers/media/video/s5p-fimc/fimc-m2m.c
+++ b/drivers/media/video/s5p-fimc/fimc-m2m.c
@@ -259,7 +259,12 @@ static int fimc_m2m_querycap(struct file *file, void *fh,
 	strncpy(cap->driver, fimc->pdev->name, sizeof(cap->driver) - 1);
 	strncpy(cap->card, fimc->pdev->name, sizeof(cap->card) - 1);
 	cap->bus_info[0] = 0;
-	cap->capabilities = V4L2_CAP_STREAMING |
+	/*
+	 * This is only a mem-to-mem video device. The capture and output
+	 * device capability flags are left only for backward compatibility
+	 * and are scheduled for removal.
+	 */
+	cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_M2M_MPLANE |
 		V4L2_CAP_VIDEO_CAPTURE_MPLANE | V4L2_CAP_VIDEO_OUTPUT_MPLANE;
 
 	return 0;
@@ -642,21 +647,25 @@ static int fimc_m2m_open(struct file *file)
 {
 	struct fimc_dev *fimc = video_drvdata(file);
 	struct fimc_ctx *ctx;
-	int ret;
+	int ret = -EBUSY;
 
 	dbg("pid: %d, state: 0x%lx, refcnt: %d",
 	    task_pid_nr(current), fimc->state, fimc->vid_cap.refcnt);
 
+	if (mutex_lock_interruptible(&fimc->lock))
+		return -ERESTARTSYS;
 	/*
 	 * Return if the corresponding video capture node
 	 * is already opened.
 	 */
 	if (fimc->vid_cap.refcnt > 0)
-		return -EBUSY;
+		goto unlock;
 
 	ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	if (!ctx) {
+		ret = -ENOMEM;
+		goto unlock;
+	}
 	v4l2_fh_init(&ctx->fh, fimc->m2m.vfd);
 	ctx->fimc_dev = fimc;
 
@@ -687,6 +696,8 @@ static int fimc_m2m_open(struct file *file)
 
 	if (fimc->m2m.refcnt++ == 0)
 		set_bit(ST_M2M_RUN, &fimc->state);
+
+	mutex_unlock(&fimc->lock);
 	return 0;
 
 error_c:
@@ -695,6 +706,8 @@ error_fh:
 	v4l2_fh_del(&ctx->fh);
 	v4l2_fh_exit(&ctx->fh);
 	kfree(ctx);
+unlock:
+	mutex_unlock(&fimc->lock);
 	return ret;
 }
 
@@ -706,6 +719,9 @@ 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;
+
 	v4l2_m2m_ctx_release(ctx->m2m_ctx);
 	fimc_ctrls_delete(ctx);
 	v4l2_fh_del(&ctx->fh);
@@ -714,6 +730,8 @@ static int fimc_m2m_release(struct file *file)
 	if (--fimc->m2m.refcnt <= 0)
 		clear_bit(ST_M2M_RUN, &fimc->state);
 	kfree(ctx);
+
+	mutex_unlock(&fimc->lock);
 	return 0;
 }
 
@@ -721,16 +739,32 @@ static unsigned int fimc_m2m_poll(struct file *file,
 				  struct poll_table_struct *wait)
 {
 	struct fimc_ctx *ctx = fh_to_ctx(file->private_data);
+	struct fimc_dev *fimc = ctx->fimc_dev;
+	int ret;
+
+	if (mutex_lock_interruptible(&fimc->lock))
+		return -ERESTARTSYS;
+
+	ret = v4l2_m2m_poll(file, ctx->m2m_ctx, wait);
+	mutex_unlock(&fimc->lock);
 
-	return v4l2_m2m_poll(file, ctx->m2m_ctx, wait);
+	return ret;
 }
 
 
 static int fimc_m2m_mmap(struct file *file, struct vm_area_struct *vma)
 {
 	struct fimc_ctx *ctx = fh_to_ctx(file->private_data);
+	struct fimc_dev *fimc = ctx->fimc_dev;
+	int ret;
+
+	if (mutex_lock_interruptible(&fimc->lock))
+		return -ERESTARTSYS;
 
-	return v4l2_m2m_mmap(file, ctx->m2m_ctx, vma);
+	ret = v4l2_m2m_mmap(file, ctx->m2m_ctx, vma);
+	mutex_unlock(&fimc->lock);
+
+	return ret;
 }
 
 static const struct v4l2_file_operations fimc_m2m_fops = {
@@ -772,10 +806,6 @@ int fimc_register_m2m_device(struct fimc_dev *fimc,
 	vfd->minor = -1;
 	vfd->release = video_device_release;
 	vfd->lock = &fimc->lock;
-	/* Locking in file operations other than ioctl should be done
-	   by the driver, not the V4L2 core.
-	   This driver needs auditing so that this flag can be removed. */
-	set_bit(V4L2_FL_LOCK_ALL_FOPS, &vfd->flags);
 
 	snprintf(vfd->name, sizeof(vfd->name), "fimc.%d.m2m", fimc->id);
 	video_set_drvdata(vfd, fimc);
diff --git a/drivers/media/video/s5p-fimc/fimc-mdevice.c b/drivers/media/video/s5p-fimc/fimc-mdevice.c
index 52cef486542..e65bb283fd8 100644
--- a/drivers/media/video/s5p-fimc/fimc-mdevice.c
+++ b/drivers/media/video/s5p-fimc/fimc-mdevice.c
@@ -180,7 +180,7 @@ EXPORT_SYMBOL_GPL(fimc_pipeline_initialize);
  * sensor clock.
  * Called with the graph mutex held.
  */
-int __fimc_pipeline_shutdown(struct fimc_pipeline *p)
+static int __fimc_pipeline_shutdown(struct fimc_pipeline *p)
 {
 	int ret = 0;
 
@@ -1010,7 +1010,7 @@ static struct platform_driver fimc_md_driver = {
 	}
 };
 
-int __init fimc_md_init(void)
+static int __init fimc_md_init(void)
 {
 	int ret;
 
@@ -1021,7 +1021,8 @@ int __init fimc_md_init(void)
 
 	return platform_driver_register(&fimc_md_driver);
 }
-void __exit fimc_md_exit(void)
+
+static void __exit fimc_md_exit(void)
 {
 	platform_driver_unregister(&fimc_md_driver);
 	fimc_unregister_driver();
diff --git a/drivers/media/video/s5p-fimc/fimc-reg.c b/drivers/media/video/s5p-fimc/fimc-reg.c
index 1fc4ce8446f..0e3eb9ce4f9 100644
--- a/drivers/media/video/s5p-fimc/fimc-reg.c
+++ b/drivers/media/video/s5p-fimc/fimc-reg.c
@@ -667,7 +667,8 @@ int fimc_hw_set_camera_type(struct fimc_dev *fimc,
 		FIMC_REG_CIGCTRL_SELCAM_MIPI | FIMC_REG_CIGCTRL_CAMIF_SELWB |
 		FIMC_REG_CIGCTRL_SELCAM_MIPI_A | FIMC_REG_CIGCTRL_CAM_JPEG);
 
-	if (cam->bus_type == FIMC_MIPI_CSI2) {
+	switch (cam->bus_type) {
+	case FIMC_MIPI_CSI2:
 		cfg |= FIMC_REG_CIGCTRL_SELCAM_MIPI;
 
 		if (cam->mux_id == 0)
@@ -683,23 +684,24 @@ int fimc_hw_set_camera_type(struct fimc_dev *fimc,
 			cfg |= FIMC_REG_CIGCTRL_CAM_JPEG;
 			break;
 		default:
-			v4l2_err(fimc->vid_cap.vfd,
-				 "Not supported camera pixel format: %d",
+			v4l2_err(vid_cap->vfd,
+				 "Not supported camera pixel format: %#x\n",
 				 vid_cap->mf.code);
 			return -EINVAL;
 		}
 		tmp |= (csis_data_alignment == 32) << 8;
 
 		writel(tmp, fimc->regs + FIMC_REG_CSIIMGFMT);
-
-	} else if (cam->bus_type == FIMC_ITU_601 ||
-		   cam->bus_type == FIMC_ITU_656) {
+		break;
+	case FIMC_ITU_601...FIMC_ITU_656:
 		if (cam->mux_id == 0) /* ITU-A, ITU-B: 0, 1 */
 			cfg |= FIMC_REG_CIGCTRL_SELCAM_ITU_A;
-	} else if (cam->bus_type == FIMC_LCD_WB) {
+		break;
+	case FIMC_LCD_WB:
 		cfg |= FIMC_REG_CIGCTRL_CAMIF_SELWB;
-	} else {
-		err("invalid camera bus type selected\n");
+		break;
+	default:
+		v4l2_err(vid_cap->vfd, "Invalid camera bus type selected\n");
 		return -EINVAL;
 	}
 	writel(cfg, fimc->regs + FIMC_REG_CIGCTRL);