dmaengine: dw: define DW_DMA_MAX_NR_MASTERS
Instead of using magic number in the code the patch provides
DW_DMA_MAX_NR_MASTERS constant.
While here, restrict the reading of data width array by amount of the actual
number of AHB masters.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
diff --git a/drivers/dma/dw/regs.h b/drivers/dma/dw/regs.h
index 254a1db..241ff2b 100644
--- a/drivers/dma/dw/regs.h
+++ b/drivers/dma/dw/regs.h
@@ -285,7 +285,7 @@
/* hardware configuration */
unsigned char nr_masters;
- unsigned char data_width[4];
+ unsigned char data_width[DW_DMA_MAX_NR_MASTERS];
};
static inline struct dw_dma_regs __iomem *__dw_regs(struct dw_dma *dw)