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| author | Wolfram Sang <wsa@kernel.org> | 2020-05-20 15:27:45 +0200 |
|---|---|---|
| committer | Wolfram Sang <wsa@kernel.org> | 2020-05-20 15:27:45 +0200 |
| commit | f89c326dcaa0cb8c3af7764e75eeed4e3f3c879a (patch) | |
| tree | 31a5967da1f04180a1a922258f6947ad17255ee8 /include/linux/dmaengine.h | |
| parent | 6fe12cdbcfe35ad4726a619a9546822d34fc934c (diff) | |
| parent | efa7fb4c6c8e4171fd29a5935a9dc7a28e363278 (diff) | |
| download | linux-stable-f89c326dcaa0cb8c3af7764e75eeed4e3f3c879a.tar.gz linux-stable-f89c326dcaa0cb8c3af7764e75eeed4e3f3c879a.tar.bz2 linux-stable-f89c326dcaa0cb8c3af7764e75eeed4e3f3c879a.zip | |
Merge branch 'i2c/for-current-fixed' into i2c/for-5.8
Diffstat (limited to 'include/linux/dmaengine.h')
| -rw-r--r-- | include/linux/dmaengine.h | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 21065c04c4ac..e1c03339918f 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -83,9 +83,9 @@ enum dma_transfer_direction { /** * Interleaved Transfer Request * ---------------------------- - * A chunk is collection of contiguous bytes to be transfered. + * A chunk is collection of contiguous bytes to be transferred. * The gap(in bytes) between two chunks is called inter-chunk-gap(ICG). - * ICGs may or maynot change between chunks. + * ICGs may or may not change between chunks. * A FRAME is the smallest series of contiguous {chunk,icg} pairs, * that when repeated an integral number of times, specifies the transfer. * A transfer template is specification of a Frame, the number of times @@ -341,13 +341,11 @@ struct dma_chan { * @chan: driver channel device * @device: sysfs device * @dev_id: parent dma_device dev_id - * @idr_ref: reference count to gate release of dma_device dev_id */ struct dma_chan_dev { struct dma_chan *chan; struct device device; int dev_id; - atomic_t *idr_ref; }; /** @@ -835,6 +833,8 @@ struct dma_device { int dev_id; 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; @@ -1069,7 +1069,7 @@ static inline int dmaengine_terminate_all(struct dma_chan *chan) * dmaengine_synchronize() needs to be called before it is safe to free * any memory that is accessed by previously submitted descriptors or before * freeing any resources accessed from within the completion callback of any - * perviously submitted descriptors. + * previously submitted descriptors. * * This function can be called from atomic context as well as from within a * complete callback of a descriptor submitted on the same channel. @@ -1091,7 +1091,7 @@ static inline int dmaengine_terminate_async(struct dma_chan *chan) * * Synchronizes to the DMA channel termination to the current context. When this * function returns it is guaranteed that all transfers for previously issued - * descriptors have stopped and and it is safe to free the memory assoicated + * descriptors have stopped and it is safe to free the memory associated * with them. Furthermore it is guaranteed that all complete callback functions * for a previously submitted descriptor have finished running and it is safe to * free resources accessed from within the complete callbacks. |