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dmaengine: idma64: convert to __ffs() 

We replace __fls() by __ffs() since we have to find a *minimum* data width that
satisfies both source and destination.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Andy Shevchenko 2015-09-14 11:55:37 +03:00 committed by Vinod Koul
parent 9ab8b4e7ca
commit 87b045969a
1 changed files with 4 additions and 4 deletions
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8
drivers/dma/idma64.c
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@ -257,15 +257,15 @@ static u64 idma64_hw_desc_fill(struct idma64_hw_desc *hw,
dar = config->dst_addr;
ctllo |= IDMA64C_CTLL_DST_FIX | IDMA64C_CTLL_SRC_INC |
IDMA64C_CTLL_FC_M2P;
src_width = min_t(u32, 2, __fls(sar | hw->len));
dst_width = __fls(config->dst_addr_width);
src_width = min_t(u32, 2, __ffs(sar | hw->len));
dst_width = __ffs(config->dst_addr_width);
} else { /* DMA_DEV_TO_MEM */
sar = config->src_addr;
dar = hw->phys;
ctllo |= IDMA64C_CTLL_DST_INC | IDMA64C_CTLL_SRC_FIX |
IDMA64C_CTLL_FC_P2M;
src_width = __fls(config->src_addr_width);
dst_width = min_t(u32, 2, __fls(dar | hw->len));
src_width = __ffs(config->src_addr_width);
dst_width = min_t(u32, 2, __ffs(dar | hw->len));
}
lli->sar = sar;