[PATCH v2 3/4] mtd: denali: Drop custom dma mapping functions

[Vignesh Raghavendra]

Drop local dma_map_single() and dma_unmap_single() and use arch specific
common implementation

Signed-off-by: Vignesh Raghavendra <vigne...@ti.com>
Acked-by: Masahiro Yamada <yamada.masah...@socionext.com>
---
 drivers/mtd/nand/raw/denali.c | 35 +++--------------------------------
 1 file changed, 3 insertions(+), 32 deletions(-)

diff --git a/drivers/mtd/nand/raw/denali.c b/drivers/mtd/nand/raw/denali.c
index 0a7ca8a8dfb4..8537c609fb62 100644
--- a/drivers/mtd/nand/raw/denali.c
+++ b/drivers/mtd/nand/raw/denali.c
@@ -5,7 +5,7 @@
  * Copyright (C) 2009-2010, Intel Corporation and its suppliers.
  */
 
-#include <cpu_func.h>
+#include <asm/dma-mapping.h>
 #include <dm.h>
 #include <nand.h>
 #include <linux/bitfield.h>
@@ -17,35 +17,6 @@
 
 #include "denali.h"
 
-static dma_addr_t dma_map_single(void *dev, void *ptr, size_t size,
-                                enum dma_data_direction dir)
-{
-       unsigned long addr = (unsigned long)ptr;
-
-       size = ALIGN(size, ARCH_DMA_MINALIGN);
-
-       if (dir == DMA_FROM_DEVICE)
-               invalidate_dcache_range(addr, addr + size);
-       else
-               flush_dcache_range(addr, addr + size);
-
-       return addr;
-}
-
-static void dma_unmap_single(void *dev, dma_addr_t addr, size_t size,
-                            enum dma_data_direction dir)
-{
-       size = ALIGN(size, ARCH_DMA_MINALIGN);
-
-       if (dir != DMA_TO_DEVICE)
-               invalidate_dcache_range(addr, addr + size);
-}
-
-static int dma_mapping_error(void *dev, dma_addr_t addr)
-{
-       return 0;
-}
-
 #define DENALI_NAND_NAME    "denali-nand"
 
 /* for Indexed Addressing */
@@ -565,7 +536,7 @@ static int denali_dma_xfer(struct denali_nand_info *denali, 
void *buf,
        enum dma_data_direction dir = write ? DMA_TO_DEVICE : DMA_FROM_DEVICE;
        int ret = 0;
 
-       dma_addr = dma_map_single(denali->dev, buf, size, dir);
+       dma_addr = dma_map_single(buf, size, dir);
        if (dma_mapping_error(denali->dev, dma_addr)) {
                dev_dbg(denali->dev, "Failed to DMA-map buffer. Trying PIO.\n");
                return denali_pio_xfer(denali, buf, size, page, raw, write);
@@ -606,7 +577,7 @@ static int denali_dma_xfer(struct denali_nand_info *denali, 
void *buf,
 
        iowrite32(0, denali->reg + DMA_ENABLE);
 
-       dma_unmap_single(denali->dev, dma_addr, size, dir);
+       dma_unmap_single(buf, size, dir);
 
        if (irq_status & INTR__ERASED_PAGE)
                memset(buf, 0xff, size);
-- 
2.25.0