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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2022-06-20 18:21:25 +0200 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2022-06-20 18:21:25 +0200 |
| commit | 2b1333b80885b896807ffb6ccf4bc21d29aa65e0 (patch) | |
| tree | 51cc2d13d65603383db82c87f01a0aa93bd26010 /include/linux/dmaengine.h | |
| parent | cad564ca557f8d3bb3b1fa965d9a2b3f6490ec69 (diff) | |
| parent | 0f95ee9a0c579ebed0309657f6918673927189f2 (diff) | |
Merge drm/drm-next into drm-misc-next
Backmerging to get new regmap APIs of v5.19-rc1.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'include/linux/dmaengine.h')
| -rw-r--r-- | include/linux/dmaengine.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 842d4f7ca752..b46b88e6aa0d 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -870,7 +870,6 @@ struct dma_device { struct device *dev; struct module *owner; struct ida chan_ida; - struct mutex chan_mutex; /* to protect chan_ida */ u32 src_addr_widths; u32 dst_addr_widths; @@ -1031,6 +1030,14 @@ static inline struct dma_async_tx_descriptor *dmaengine_prep_interleaved_dma( return chan->device->device_prep_interleaved_dma(chan, xt, flags); } +/** + * dmaengine_prep_dma_memset() - Prepare a DMA memset descriptor. + * @chan: The channel to be used for this descriptor + * @dest: Address of buffer to be set + * @value: Treated as a single byte value that fills the destination buffer + * @len: The total size of dest + * @flags: DMA engine flags + */ static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_memset( struct dma_chan *chan, dma_addr_t dest, int value, size_t len, unsigned long flags) |