FAILED: patch "[PATCH] media: nxp: imx8-isi: m2m: Fix streaming cleanup on release" failed to apply to 6.12-stable tree

index 6bdd13b3048f..a8b10d944d69 100644
@@ -43,7 +43,6 @@ struct mxc_isi_m2m_ctx_queue_data {
 	struct v4l2_pix_format_mplane format;
 	const struct mxc_isi_format_info *info;
 	u32 sequence;
-	bool streaming;
 };
 
 struct mxc_isi_m2m_ctx {

@@ -236,6 +235,65 @@ static void mxc_isi_m2m_vb2_buffer_queue(struct vb2_buffer *vb2)
 	v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
 }
 
+static int mxc_isi_m2m_vb2_prepare_streaming(struct vb2_queue *q)
+{
+	struct mxc_isi_m2m_ctx *ctx = vb2_get_drv_priv(q);
+	const struct v4l2_pix_format_mplane *out_pix = &ctx->queues.out.format;
+	const struct v4l2_pix_format_mplane *cap_pix = &ctx->queues.cap.format;
+	const struct mxc_isi_format_info *cap_info = ctx->queues.cap.info;
+	const struct mxc_isi_format_info *out_info = ctx->queues.out.info;
+	struct mxc_isi_m2m *m2m = ctx->m2m;
+	int ret;
+
+	guard(mutex)(&m2m->lock);
+
+	if (m2m->usage_count == INT_MAX)
+		return -EOVERFLOW;
+
+	/*
+	 * Acquire the pipe and initialize the channel with the first user of
+	 * the M2M device.
+	 */
+	if (m2m->usage_count == 0) {
+		bool bypass = cap_pix->width == out_pix->width &&
+			      cap_pix->height == out_pix->height &&
+			      cap_info->encoding == out_info->encoding;
+
+		ret = mxc_isi_channel_acquire(m2m->pipe,
+					      &mxc_isi_m2m_frame_write_done,
+					      bypass);
+		if (ret)
+			return ret;
+
+		mxc_isi_channel_get(m2m->pipe);
+	}
+
+	m2m->usage_count++;
+
+	/*
+	 * Allocate resources for the channel, counting how many users require
+	 * buffer chaining.
+	 */
+	if (!ctx->chained && out_pix->width > MXC_ISI_MAX_WIDTH_UNCHAINED) {
+		ret = mxc_isi_channel_chain(m2m->pipe);
+		if (ret)
+			goto err_deinit;
+
+		m2m->chained_count++;
+		ctx->chained = true;
+	}
+
+	return 0;
+
+err_deinit:
+	if (--m2m->usage_count == 0) {
+		mxc_isi_channel_put(m2m->pipe);
+		mxc_isi_channel_release(m2m->pipe);
+	}
+
+	return ret;
+}
+
 static int mxc_isi_m2m_vb2_start_streaming(struct vb2_queue *q,
 					   unsigned int count)
 {

@@ -265,13 +323,44 @@ static void mxc_isi_m2m_vb2_stop_streaming(struct vb2_queue *q)
 	}
 }
 
+static void mxc_isi_m2m_vb2_unprepare_streaming(struct vb2_queue *q)
+{
+	struct mxc_isi_m2m_ctx *ctx = vb2_get_drv_priv(q);
+	struct mxc_isi_m2m *m2m = ctx->m2m;
+
+	guard(mutex)(&m2m->lock);
+
+	/*
+	 * If the last context is this one, reset it to make sure the device
+	 * will be reconfigured when streaming is restarted.
+	 */
+	if (m2m->last_ctx == ctx)
+		m2m->last_ctx = NULL;
+
+	/* Free the channel resources if this is the last chained context. */
+	if (ctx->chained && --m2m->chained_count == 0)
+		mxc_isi_channel_unchain(m2m->pipe);
+	ctx->chained = false;
+
+	/* Turn off the light with the last user. */
+	if (--m2m->usage_count == 0) {
+		mxc_isi_channel_disable(m2m->pipe);
+		mxc_isi_channel_put(m2m->pipe);
+		mxc_isi_channel_release(m2m->pipe);
+	}
+
+	WARN_ON(m2m->usage_count < 0);
+}
+
 static const struct vb2_ops mxc_isi_m2m_vb2_qops = {
 	.queue_setup		= mxc_isi_m2m_vb2_queue_setup,
 	.buf_init		= mxc_isi_m2m_vb2_buffer_init,
 	.buf_prepare		= mxc_isi_m2m_vb2_buffer_prepare,
 	.buf_queue		= mxc_isi_m2m_vb2_buffer_queue,
+	.prepare_streaming	= mxc_isi_m2m_vb2_prepare_streaming,
 	.start_streaming	= mxc_isi_m2m_vb2_start_streaming,
 	.stop_streaming		= mxc_isi_m2m_vb2_stop_streaming,
+	.unprepare_streaming	= mxc_isi_m2m_vb2_unprepare_streaming,
 };
 
 static int mxc_isi_m2m_queue_init(void *priv, struct vb2_queue *src_vq,

@@ -481,135 +570,6 @@ static int mxc_isi_m2m_s_fmt_vid(struct file *file, void *fh,
 	return 0;
 }
 
-static int mxc_isi_m2m_streamon(struct file *file, void *fh,
-				enum v4l2_buf_type type)
-{
-	struct mxc_isi_m2m_ctx *ctx = file_to_isi_m2m_ctx(file);
-	struct mxc_isi_m2m_ctx_queue_data *q = mxc_isi_m2m_ctx_qdata(ctx, type);
-	const struct v4l2_pix_format_mplane *out_pix = &ctx->queues.out.format;
-	const struct v4l2_pix_format_mplane *cap_pix = &ctx->queues.cap.format;
-	const struct mxc_isi_format_info *cap_info = ctx->queues.cap.info;
-	const struct mxc_isi_format_info *out_info = ctx->queues.out.info;
-	struct mxc_isi_m2m *m2m = ctx->m2m;
-	int ret;
-
-	if (q->streaming)
-		return 0;
-
-	mutex_lock(&m2m->lock);
-
-	if (m2m->usage_count == INT_MAX) {
-		ret = -EOVERFLOW;
-		goto unlock;
-	}
-
-	/*
-	 * Acquire the pipe and initialize the channel with the first user of
-	 * the M2M device.
-	 */
-	if (m2m->usage_count == 0) {
-		bool bypass = cap_pix->width == out_pix->width &&
-			      cap_pix->height == out_pix->height &&
-			      cap_info->encoding == out_info->encoding;
-
-		ret = mxc_isi_channel_acquire(m2m->pipe,
-					      &mxc_isi_m2m_frame_write_done,
-					      bypass);
-		if (ret)
-			goto unlock;
-
-		mxc_isi_channel_get(m2m->pipe);
-	}
-
-	m2m->usage_count++;
-
-	/*
-	 * Allocate resources for the channel, counting how many users require
-	 * buffer chaining.
-	 */
-	if (!ctx->chained && out_pix->width > MXC_ISI_MAX_WIDTH_UNCHAINED) {
-		ret = mxc_isi_channel_chain(m2m->pipe);
-		if (ret)
-			goto deinit;
-
-		m2m->chained_count++;
-		ctx->chained = true;
-	}
-
-	/*
-	 * Drop the lock to start the stream, as the .device_run() operation
-	 * needs to acquire it.
-	 */
-	mutex_unlock(&m2m->lock);
-	ret = v4l2_m2m_ioctl_streamon(file, fh, type);
-	if (ret) {
-		/* Reacquire the lock for the cleanup path. */
-		mutex_lock(&m2m->lock);
-		goto unchain;
-	}
-
-	q->streaming = true;
-
-	return 0;
-
-unchain:
-	if (ctx->chained && --m2m->chained_count == 0)
-		mxc_isi_channel_unchain(m2m->pipe);
-	ctx->chained = false;
-
-deinit:
-	if (--m2m->usage_count == 0) {
-		mxc_isi_channel_put(m2m->pipe);
-		mxc_isi_channel_release(m2m->pipe);
-	}
-
-unlock:
-	mutex_unlock(&m2m->lock);
-	return ret;
-}
-
-static int mxc_isi_m2m_streamoff(struct file *file, void *fh,
-				 enum v4l2_buf_type type)
-{
-	struct mxc_isi_m2m_ctx *ctx = file_to_isi_m2m_ctx(file);
-	struct mxc_isi_m2m_ctx_queue_data *q = mxc_isi_m2m_ctx_qdata(ctx, type);
-	struct mxc_isi_m2m *m2m = ctx->m2m;
-
-	v4l2_m2m_ioctl_streamoff(file, fh, type);
-
-	if (!q->streaming)
-		return 0;
-
-	mutex_lock(&m2m->lock);
-
-	/*
-	 * If the last context is this one, reset it to make sure the device
-	 * will be reconfigured when streaming is restarted.
-	 */
-	if (m2m->last_ctx == ctx)
-		m2m->last_ctx = NULL;
-
-	/* Free the channel resources if this is the last chained context. */
-	if (ctx->chained && --m2m->chained_count == 0)
-		mxc_isi_channel_unchain(m2m->pipe);
-	ctx->chained = false;
-
-	/* Turn off the light with the last user. */
-	if (--m2m->usage_count == 0) {
-		mxc_isi_channel_disable(m2m->pipe);
-		mxc_isi_channel_put(m2m->pipe);
-		mxc_isi_channel_release(m2m->pipe);
-	}
-
-	WARN_ON(m2m->usage_count < 0);
-
-	mutex_unlock(&m2m->lock);
-
-	q->streaming = false;
-
-	return 0;
-}
-
 static const struct v4l2_ioctl_ops mxc_isi_m2m_ioctl_ops = {
 	.vidioc_querycap		= mxc_isi_m2m_querycap,
 

@@ -630,8 +590,8 @@ static const struct v4l2_ioctl_ops mxc_isi_m2m_ioctl_ops = {
 	.vidioc_prepare_buf		= v4l2_m2m_ioctl_prepare_buf,
 	.vidioc_create_bufs		= v4l2_m2m_ioctl_create_bufs,
 
-	.vidioc_streamon		= mxc_isi_m2m_streamon,
-	.vidioc_streamoff		= mxc_isi_m2m_streamoff,
+	.vidioc_streamon		= v4l2_m2m_ioctl_streamon,
+	.vidioc_streamoff		= v4l2_m2m_ioctl_streamoff,
 
 	.vidioc_subscribe_event		= v4l2_ctrl_subscribe_event,
 	.vidioc_unsubscribe_event	= v4l2_event_unsubscribe,

index 2810ebe9b5f75..5a4676d520793 100644
@@ -361,7 +361,7 @@ void mxc_isi_channel_get(struct mxc_isi_pipe *pipe);
 void mxc_isi_channel_put(struct mxc_isi_pipe *pipe);
 void mxc_isi_channel_enable(struct mxc_isi_pipe *pipe);
 void mxc_isi_channel_disable(struct mxc_isi_pipe *pipe);
-int mxc_isi_channel_chain(struct mxc_isi_pipe *pipe, bool bypass);
+int mxc_isi_channel_chain(struct mxc_isi_pipe *pipe);
 void mxc_isi_channel_unchain(struct mxc_isi_pipe *pipe);
 
 void mxc_isi_channel_config(struct mxc_isi_pipe *pipe,

index 5623914f95e64..9225a7ac1c3ee 100644
@@ -587,7 +587,7 @@ void mxc_isi_channel_release(struct mxc_isi_pipe *pipe)
  *
  * TODO: Support secondary line buffer for downscaling YUV420 images.
  */
-int mxc_isi_channel_chain(struct mxc_isi_pipe *pipe, bool bypass)
+int mxc_isi_channel_chain(struct mxc_isi_pipe *pipe)
 {
 	/* Channel chaining requires both line and output buffer. */
 	const u8 resources = MXC_ISI_CHANNEL_RES_OUTPUT_BUF

index cd6c52e9d158a..7a9bc6fda3f81 100644
@@ -493,7 +493,6 @@ static int mxc_isi_m2m_streamon(struct file *file, void *fh,
 	const struct mxc_isi_format_info *cap_info = ctx->queues.cap.info;
 	const struct mxc_isi_format_info *out_info = ctx->queues.out.info;
 	struct mxc_isi_m2m *m2m = ctx->m2m;
-	bool bypass;
 	int ret;
 
 	if (q->streaming)

@@ -506,15 +505,15 @@ static int mxc_isi_m2m_streamon(struct file *file, void *fh,
 		goto unlock;
 	}
 
-	bypass = cap_pix->width == out_pix->width &&
-		 cap_pix->height == out_pix->height &&
-		 cap_info->encoding == out_info->encoding;
-
 	/*
 	 * Acquire the pipe and initialize the channel with the first user of
 	 * the M2M device.
 	 */
 	if (m2m->usage_count == 0) {
+		bool bypass = cap_pix->width == out_pix->width &&
+			      cap_pix->height == out_pix->height &&
+			      cap_info->encoding == out_info->encoding;
+
 		ret = mxc_isi_channel_acquire(m2m->pipe,
 					      &mxc_isi_m2m_frame_write_done,
 					      bypass);

@@ -531,7 +530,7 @@ static int mxc_isi_m2m_streamon(struct file *file, void *fh,
 	 * buffer chaining.
 	 */
 	if (!ctx->chained && out_pix->width > MXC_ISI_MAX_WIDTH_UNCHAINED) {
-		ret = mxc_isi_channel_chain(m2m->pipe, bypass);
+		ret = mxc_isi_channel_chain(m2m->pipe);
 		if (ret)
 			goto deinit;
 

index d76eb58deb096..a41c51dd9ce0f 100644
@@ -855,7 +855,7 @@ int mxc_isi_pipe_acquire(struct mxc_isi_pipe *pipe,
 
 	/* Chain the channel if needed for wide resolutions. */
 	if (sink_fmt->width > MXC_ISI_MAX_WIDTH_UNCHAINED) {
-		ret = mxc_isi_channel_chain(pipe, bypass);
+		ret = mxc_isi_channel_chain(pipe);
 		if (ret)
 			mxc_isi_channel_release(pipe);
 	}

index 7a9bc6fda3f81..81223d28ee56e 100644
@@ -43,7 +43,6 @@ struct mxc_isi_m2m_ctx_queue_data {
 	struct v4l2_pix_format_mplane format;
 	const struct mxc_isi_format_info *info;
 	u32 sequence;
-	bool streaming;
 };
 
 struct mxc_isi_m2m_ctx {

@@ -236,6 +235,65 @@ static void mxc_isi_m2m_vb2_buffer_queue(struct vb2_buffer *vb2)
 	v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
 }
 
+static int mxc_isi_m2m_vb2_prepare_streaming(struct vb2_queue *q)
+{
+	struct mxc_isi_m2m_ctx *ctx = vb2_get_drv_priv(q);
+	const struct v4l2_pix_format_mplane *out_pix = &ctx->queues.out.format;
+	const struct v4l2_pix_format_mplane *cap_pix = &ctx->queues.cap.format;
+	const struct mxc_isi_format_info *cap_info = ctx->queues.cap.info;
+	const struct mxc_isi_format_info *out_info = ctx->queues.out.info;
+	struct mxc_isi_m2m *m2m = ctx->m2m;
+	int ret;
+
+	guard(mutex)(&m2m->lock);
+
+	if (m2m->usage_count == INT_MAX)
+		return -EOVERFLOW;
+
+	/*
+	 * Acquire the pipe and initialize the channel with the first user of
+	 * the M2M device.
+	 */
+	if (m2m->usage_count == 0) {
+		bool bypass = cap_pix->width == out_pix->width &&
+			      cap_pix->height == out_pix->height &&
+			      cap_info->encoding == out_info->encoding;
+
+		ret = mxc_isi_channel_acquire(m2m->pipe,
+					      &mxc_isi_m2m_frame_write_done,
+					      bypass);
+		if (ret)
+			return ret;
+
+		mxc_isi_channel_get(m2m->pipe);
+	}
+
+	m2m->usage_count++;
+
+	/*
+	 * Allocate resources for the channel, counting how many users require
+	 * buffer chaining.
+	 */
+	if (!ctx->chained && out_pix->width > MXC_ISI_MAX_WIDTH_UNCHAINED) {
+		ret = mxc_isi_channel_chain(m2m->pipe);
+		if (ret)
+			goto err_deinit;
+
+		m2m->chained_count++;
+		ctx->chained = true;
+	}
+
+	return 0;
+
+err_deinit:
+	if (--m2m->usage_count == 0) {
+		mxc_isi_channel_put(m2m->pipe);
+		mxc_isi_channel_release(m2m->pipe);
+	}
+
+	return ret;
+}
+
 static int mxc_isi_m2m_vb2_start_streaming(struct vb2_queue *q,
 					   unsigned int count)
 {

@@ -265,6 +323,35 @@ static void mxc_isi_m2m_vb2_stop_streaming(struct vb2_queue *q)
 	}
 }
 
+static void mxc_isi_m2m_vb2_unprepare_streaming(struct vb2_queue *q)
+{
+	struct mxc_isi_m2m_ctx *ctx = vb2_get_drv_priv(q);
+	struct mxc_isi_m2m *m2m = ctx->m2m;
+
+	guard(mutex)(&m2m->lock);
+
+	/*
+	 * If the last context is this one, reset it to make sure the device
+	 * will be reconfigured when streaming is restarted.
+	 */
+	if (m2m->last_ctx == ctx)
+		m2m->last_ctx = NULL;
+
+	/* Free the channel resources if this is the last chained context. */
+	if (ctx->chained && --m2m->chained_count == 0)
+		mxc_isi_channel_unchain(m2m->pipe);
+	ctx->chained = false;
+
+	/* Turn off the light with the last user. */
+	if (--m2m->usage_count == 0) {
+		mxc_isi_channel_disable(m2m->pipe);
+		mxc_isi_channel_put(m2m->pipe);
+		mxc_isi_channel_release(m2m->pipe);
+	}
+
+	WARN_ON(m2m->usage_count < 0);
+}
+
 static const struct vb2_ops mxc_isi_m2m_vb2_qops = {
 	.queue_setup		= mxc_isi_m2m_vb2_queue_setup,
 	.buf_init		= mxc_isi_m2m_vb2_buffer_init,

@@ -272,8 +359,10 @@ static const struct vb2_ops mxc_isi_m2m_vb2_qops = {
 	.buf_queue		= mxc_isi_m2m_vb2_buffer_queue,
 	.wait_prepare		= vb2_ops_wait_prepare,
 	.wait_finish		= vb2_ops_wait_finish,
+	.prepare_streaming	= mxc_isi_m2m_vb2_prepare_streaming,
 	.start_streaming	= mxc_isi_m2m_vb2_start_streaming,
 	.stop_streaming		= mxc_isi_m2m_vb2_stop_streaming,
+	.unprepare_streaming	= mxc_isi_m2m_vb2_unprepare_streaming,
 };
 
 static int mxc_isi_m2m_queue_init(void *priv, struct vb2_queue *src_vq,

@@ -483,135 +572,6 @@ static int mxc_isi_m2m_s_fmt_vid(struct file *file, void *fh,
 	return 0;
 }
 
-static int mxc_isi_m2m_streamon(struct file *file, void *fh,
-				enum v4l2_buf_type type)
-{
-	struct mxc_isi_m2m_ctx *ctx = to_isi_m2m_ctx(fh);
-	struct mxc_isi_m2m_ctx_queue_data *q = mxc_isi_m2m_ctx_qdata(ctx, type);
-	const struct v4l2_pix_format_mplane *out_pix = &ctx->queues.out.format;
-	const struct v4l2_pix_format_mplane *cap_pix = &ctx->queues.cap.format;
-	const struct mxc_isi_format_info *cap_info = ctx->queues.cap.info;
-	const struct mxc_isi_format_info *out_info = ctx->queues.out.info;
-	struct mxc_isi_m2m *m2m = ctx->m2m;
-	int ret;
-
-	if (q->streaming)
-		return 0;
-
-	mutex_lock(&m2m->lock);
-
-	if (m2m->usage_count == INT_MAX) {
-		ret = -EOVERFLOW;
-		goto unlock;
-	}
-
-	/*
-	 * Acquire the pipe and initialize the channel with the first user of
-	 * the M2M device.
-	 */
-	if (m2m->usage_count == 0) {
-		bool bypass = cap_pix->width == out_pix->width &&
-			      cap_pix->height == out_pix->height &&
-			      cap_info->encoding == out_info->encoding;
-
-		ret = mxc_isi_channel_acquire(m2m->pipe,
-					      &mxc_isi_m2m_frame_write_done,
-					      bypass);
-		if (ret)
-			goto unlock;
-
-		mxc_isi_channel_get(m2m->pipe);
-	}
-
-	m2m->usage_count++;
-
-	/*
-	 * Allocate resources for the channel, counting how many users require
-	 * buffer chaining.
-	 */
-	if (!ctx->chained && out_pix->width > MXC_ISI_MAX_WIDTH_UNCHAINED) {
-		ret = mxc_isi_channel_chain(m2m->pipe);
-		if (ret)
-			goto deinit;
-
-		m2m->chained_count++;
-		ctx->chained = true;
-	}
-
-	/*
-	 * Drop the lock to start the stream, as the .device_run() operation
-	 * needs to acquire it.
-	 */
-	mutex_unlock(&m2m->lock);
-	ret = v4l2_m2m_ioctl_streamon(file, fh, type);
-	if (ret) {
-		/* Reacquire the lock for the cleanup path. */
-		mutex_lock(&m2m->lock);
-		goto unchain;
-	}
-
-	q->streaming = true;
-
-	return 0;
-
-unchain:
-	if (ctx->chained && --m2m->chained_count == 0)
-		mxc_isi_channel_unchain(m2m->pipe);
-	ctx->chained = false;
-
-deinit:
-	if (--m2m->usage_count == 0) {
-		mxc_isi_channel_put(m2m->pipe);
-		mxc_isi_channel_release(m2m->pipe);
-	}
-
-unlock:
-	mutex_unlock(&m2m->lock);
-	return ret;
-}
-
-static int mxc_isi_m2m_streamoff(struct file *file, void *fh,
-				 enum v4l2_buf_type type)
-{
-	struct mxc_isi_m2m_ctx *ctx = to_isi_m2m_ctx(fh);
-	struct mxc_isi_m2m_ctx_queue_data *q = mxc_isi_m2m_ctx_qdata(ctx, type);
-	struct mxc_isi_m2m *m2m = ctx->m2m;
-
-	v4l2_m2m_ioctl_streamoff(file, fh, type);
-
-	if (!q->streaming)
-		return 0;
-
-	mutex_lock(&m2m->lock);
-
-	/*
-	 * If the last context is this one, reset it to make sure the device
-	 * will be reconfigured when streaming is restarted.
-	 */
-	if (m2m->last_ctx == ctx)
-		m2m->last_ctx = NULL;
-
-	/* Free the channel resources if this is the last chained context. */
-	if (ctx->chained && --m2m->chained_count == 0)
-		mxc_isi_channel_unchain(m2m->pipe);
-	ctx->chained = false;
-
-	/* Turn off the light with the last user. */
-	if (--m2m->usage_count == 0) {
-		mxc_isi_channel_disable(m2m->pipe);
-		mxc_isi_channel_put(m2m->pipe);
-		mxc_isi_channel_release(m2m->pipe);
-	}
-
-	WARN_ON(m2m->usage_count < 0);
-
-	mutex_unlock(&m2m->lock);
-
-	q->streaming = false;
-
-	return 0;
-}
-
 static const struct v4l2_ioctl_ops mxc_isi_m2m_ioctl_ops = {
 	.vidioc_querycap		= mxc_isi_m2m_querycap,
 

@@ -632,8 +592,8 @@ static const struct v4l2_ioctl_ops mxc_isi_m2m_ioctl_ops = {
 	.vidioc_prepare_buf		= v4l2_m2m_ioctl_prepare_buf,
 	.vidioc_create_bufs		= v4l2_m2m_ioctl_create_bufs,
 
-	.vidioc_streamon		= mxc_isi_m2m_streamon,
-	.vidioc_streamoff		= mxc_isi_m2m_streamoff,
+	.vidioc_streamon		= v4l2_m2m_ioctl_streamon,
+	.vidioc_streamoff		= v4l2_m2m_ioctl_streamoff,
 
 	.vidioc_subscribe_event		= v4l2_ctrl_subscribe_event,
 	.vidioc_unsubscribe_event	= v4l2_event_unsubscribe,