[linux-yocto] [PATCH 03/12] dmaengine: idma64: convert to __ffs()

[Tan Jui Nee]

From: Andy Shevchenko <andriy.shevchenko at linux.intel.com>

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 at linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul at intel.com>
(cherry picked from commit 87b045969ad3fe021ccbd1ed88e7cb90adf4ca80)
Signed-off-by: Tan Jui Nee <jui.nee.tan at intel.com>
---
 drivers/dma/idma64.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/dma/idma64.c b/drivers/dma/idma64.c
index 48d6d9e..8aea9f0 100644
--- a/drivers/dma/idma64.c
+++ b/drivers/dma/idma64.c
@@ -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;
-- 
1.9.1