diff options
Diffstat (limited to 'include/linux/dma/pxa-dma.h')
| -rw-r--r-- | include/linux/dma/pxa-dma.h | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/include/linux/dma/pxa-dma.h b/include/linux/dma/pxa-dma.h index 3edc99294bf6..fceb5df07097 100644 --- a/include/linux/dma/pxa-dma.h +++ b/include/linux/dma/pxa-dma.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _PXA_DMA_H_ #define _PXA_DMA_H_ @@ -8,20 +9,18 @@ enum pxad_chan_prio { PXAD_PRIO_LOWEST, }; +/** + * struct pxad_param - dma channel request parameters + * @drcmr: requestor line number + * @prio: minimal mandatory priority of the channel + * + * If a requested channel is granted, its priority will be at least @prio, + * ie. if PXAD_PRIO_LOW is required, the requested channel will be either + * PXAD_PRIO_LOW, PXAD_PRIO_NORMAL or PXAD_PRIO_HIGHEST. + */ struct pxad_param { unsigned int drcmr; enum pxad_chan_prio prio; }; -struct dma_chan; - -#ifdef CONFIG_PXA_DMA -bool pxad_filter_fn(struct dma_chan *chan, void *param); -#else -static inline bool pxad_filter_fn(struct dma_chan *chan, void *param) -{ - return false; -} -#endif - #endif /* _PXA_DMA_H_ */ |