提交 9646b798 编写于 作者: L Linus Walleij 提交者: Dan Williams

DMAENGINE: define a dummy filter function for ste_dma40

All platform data has to be made conditional on CONFIG_STEDMA40
or we can provide a simple dummy filter functions as to avoid
cluttering the code with other #ifdef:s.
Signed-off-by: NLinus Walleij <linus.walleij@stericsson.com>
Signed-off-by: NDan Williams <dan.j.williams@intel.com>
上级 661385f9
......@@ -162,6 +162,8 @@ struct stedma40_platform_data {
int disabled_channels[STEDMA40_MAX_PHYS];
};
#ifdef CONFIG_STE_DMA40
/**
* stedma40_filter() - Provides stedma40_chan_cfg to the
* ste_dma40 dma driver via the dmaengine framework.
......@@ -223,4 +225,21 @@ dma_async_tx_descriptor *stedma40_slave_mem(struct dma_chan *chan,
direction, flags);
}
#else
static inline bool stedma40_filter(struct dma_chan *chan, void *data)
{
return false;
}
static inline struct
dma_async_tx_descriptor *stedma40_slave_mem(struct dma_chan *chan,
dma_addr_t addr,
unsigned int size,
enum dma_data_direction direction,
unsigned long flags)
{
return NULL;
}
#endif
#endif
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