[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <1512463796-29174-1-git-send-email-yamada.masahiro@socionext.com>
Date: Tue, 5 Dec 2017 17:49:56 +0900
From: Masahiro Yamada <yamada.masahiro@...ionext.com>
To: linux-mtd@...ts.infradead.org,
Boris Brezillon <boris.brezillon@...e-electrons.com>
Cc: Masahiro Yamada <yamada.masahiro@...ionext.com>,
Cyrille Pitchen <cyrille.pitchen@...ev4u.fr>,
linux-kernel@...r.kernel.org, Marek Vasut <marek.vasut@...il.com>,
Brian Norris <computersforpeace@...il.com>,
Richard Weinberger <richard@....at>,
David Woodhouse <dwmw2@...radead.org>
Subject: [PATCH] mtd: nand: cafe: clean up DMA address setup
Use macros from <linux/kernel.h> to make the code readable.
The compiler warning will be kept suppressed.
Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
---
drivers/mtd/nand/cafe_nand.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c
index add4613..2af5e35 100644
--- a/drivers/mtd/nand/cafe_nand.c
+++ b/drivers/mtd/nand/cafe_nand.c
@@ -737,12 +737,8 @@ static int cafe_nand_probe(struct pci_dev *pdev,
}
/* Set up DMA address */
- cafe_writel(cafe, cafe->dmaaddr & 0xffffffff, NAND_DMA_ADDR0);
- if (sizeof(cafe->dmaaddr) > 4)
- /* Shift in two parts to shut the compiler up */
- cafe_writel(cafe, (cafe->dmaaddr >> 16) >> 16, NAND_DMA_ADDR1);
- else
- cafe_writel(cafe, 0, NAND_DMA_ADDR1);
+ cafe_writel(cafe, lower_32_bits(cafe->dmaaddr), NAND_DMA_ADDR0);
+ cafe_writel(cafe, upper_32_bits(cafe->dmaaddr), NAND_DMA_ADDR1);
cafe_dev_dbg(&cafe->pdev->dev, "Set DMA address to %x (virt %p)\n",
cafe_readl(cafe, NAND_DMA_ADDR0), cafe->dmabuf);
--
2.7.4
Powered by blists - more mailing lists