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| author | Nuno Sá <[email protected]> | 2025-10-07 09:15:22 +0000 |
|---|---|---|
| committer | Jonathan Cameron <[email protected]> | 2025-10-13 07:38:08 +0000 |
| commit | f9c198c3ccaf90a1a265fb2ffa8d4b093c3b0784 (patch) | |
| tree | 6a89d14d0c10ad8b66edd92b63efd0b1b83d918b /scripts/basic/docproc.c | |
| parent | iio: buffer: support getting dma channel from the buffer (diff) | |
| download | kernel-f9c198c3ccaf90a1a265fb2ffa8d4b093c3b0784.tar.gz kernel-f9c198c3ccaf90a1a265fb2ffa8d4b093c3b0784.zip | |
iio: buffer-dma: support getting the DMA channel
Implement the .get_dma_dev() callback for DMA buffers by returning the
device that owns the DMA channel. This allows the core DMABUF
infrastructure to properly map DMA buffers using the correct device,
avoiding the need for bounce buffers on systems where memory is mapped
above the 32-bit range.
The function returns the DMA queue's device, which is the actual device
responsible for DMA operations in buffer-dma implementations.
Cc: [email protected]
Reviewed-by: David Lechner <[email protected]>
Signed-off-by: Nuno Sá <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>
Diffstat (limited to 'scripts/basic/docproc.c')
0 files changed, 0 insertions, 0 deletions