diff options
Diffstat (limited to 'include/linux/dmaengine.h')
| -rw-r--r-- | include/linux/dmaengine.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 01f27e8a69b7..ded5161653aa 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -616,6 +616,8 @@ struct dma_tx_state { * 0 or an error code * @device_resume: Resumes any transfer on a channel previously * paused. Returns 0 or an error code + * @device_terminate_all: Aborts all transfers on a channel. Returns 0 + * or an error code * @device_tx_status: poll for transaction completion, the optional * txstate parameter can be supplied with a pointer to get a * struct with auxiliary transfer status information, otherwise the call @@ -687,6 +689,7 @@ struct dma_device { unsigned long arg); int (*device_pause)(struct dma_chan *chan); int (*device_resume)(struct dma_chan *chan); + int (*device_terminate_all)(struct dma_chan *chan); enum dma_status (*device_tx_status)(struct dma_chan *chan, dma_cookie_t cookie, @@ -796,6 +799,9 @@ static inline int dma_get_slave_caps(struct dma_chan *chan, struct dma_slave_cap static inline int dmaengine_terminate_all(struct dma_chan *chan) { + if (chan->device->device_terminate_all) + return chan->device->device_terminate_all(chan); + return dmaengine_device_control(chan, DMA_TERMINATE_ALL, 0); } |