Merge drm/drm-next into drm-xe-next

Backmerging to bring in 6.19-rc1. An important upstream bugfix and
to help unblock PTL CI.

Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/include/linux/iio/buffer_impl.h b/include/linux/iio/buffer_impl.h
index e72552e026f3..c0b0e0992a85 100644
--- a/include/linux/iio/buffer_impl.h
+++ b/include/linux/iio/buffer_impl.h
@@ -24,7 +24,8 @@ struct sg_table;
 
 /**
  * struct iio_buffer_access_funcs - access functions for buffers.
- * @store_to:		actually store stuff to the buffer
+ * @store_to:		actually store stuff to the buffer - must be safe to
+ *			call from any context (e.g. must not sleep).
  * @read:		try to get a specified number of bytes (must exist)
  * @data_available:	indicates how much data is available for reading from
  *			the buffer.
@@ -50,6 +51,7 @@ struct sg_table;
  * @enqueue_dmabuf:	called from userspace via ioctl to queue this DMABUF
  *			object to this buffer. Requires a valid DMABUF fd, that
  *			was previouly attached to this buffer.
+ * @get_dma_dev:	called to get the DMA channel associated with this buffer.
  * @lock_queue:		called when the core needs to lock the buffer queue;
  *                      it is used when enqueueing DMABUF objects.
  * @unlock_queue:       used to unlock a previously locked buffer queue
@@ -90,6 +92,7 @@ struct iio_buffer_access_funcs {
 			      struct iio_dma_buffer_block *block,
 			      struct dma_fence *fence, struct sg_table *sgt,
 			      size_t size, bool cyclic);
+	struct device * (*get_dma_dev)(struct iio_buffer *buffer);
 	void (*lock_queue)(struct iio_buffer *buffer);
 	void (*unlock_queue)(struct iio_buffer *buffer);