au1xxx-ide: use hwif->dev

* Setup hwif->dev in au_ide_probe().

* Use hwif->dev instead of ahwif->dev in auide_build_sglist(),
  auide_build_dmatable(), auide_dma_end() and auide_ddma_init().

* Remove no longer needed 'dev' field from _auide_hwif type.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

2 files changed, 6 insertions, 10 deletions

diff --git a/drivers/ide/mips/au1xxx-ide.c b/drivers/ide/mips/au1xxx-ide.c
index 2d3e5115b834..7ec96a030041 100644
--- a/drivers/ide/mips/au1xxx-ide.c
+++ b/drivers/ide/mips/au1xxx-ide.c
@@ -213,7 +213,6 @@ static void auide_set_dma_mode(ide_drive_t *drive, const u8 speed)
 static int auide_build_sglist(ide_drive_t *drive,  struct request *rq)
 {
         ide_hwif_t *hwif = drive->hwif;
-        _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data;
         struct scatterlist *sg = hwif->sg_table;
 
         ide_map_sg(drive, rq);
@@ -223,7 +222,7 @@ static int auide_build_sglist(ide_drive_t *drive,  struct request *rq)
         else
                 hwif->sg_dma_direction = DMA_TO_DEVICE;
 
-        return dma_map_sg(ahwif->dev, sg, hwif->sg_nents,
+        return dma_map_sg(hwif->dev, sg, hwif->sg_nents,
                           hwif->sg_dma_direction);
 }
 
@@ -300,7 +299,7 @@ static int auide_build_dmatable(ide_drive_t *drive)
                 return 1;
 
  use_pio_instead:
-        dma_unmap_sg(ahwif->dev,
+        dma_unmap_sg(hwif->dev,
                      hwif->sg_table,
                      hwif->sg_nents,
                      hwif->sg_dma_direction);
@@ -311,10 +310,9 @@ static int auide_build_dmatable(ide_drive_t *drive)
 static int auide_dma_end(ide_drive_t *drive)
 {
         ide_hwif_t *hwif = HWIF(drive);
-        _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data;
 
         if (hwif->sg_nents) {
-                dma_unmap_sg(ahwif->dev, hwif->sg_table, hwif->sg_nents,
+                dma_unmap_sg(hwif->dev, hwif->sg_table, hwif->sg_nents,
                              hwif->sg_dma_direction);
                 hwif->sg_nents = 0;
         }
@@ -504,7 +502,7 @@ static int auide_ddma_init(_auide_hwif *auide) {
         auide->rx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->rx_chan,
                                                              NUM_DESCRIPTORS);
  
-        hwif->dmatable_cpu = dma_alloc_coherent(auide->dev,
+        hwif->dmatable_cpu = dma_alloc_coherent(hwif->dev,
                                                 PRD_ENTRIES * PRD_BYTES,        /* 1 Page */
                                                 &hwif->dmatable_dma, GFP_KERNEL);
         
@@ -592,9 +590,6 @@ static int au_ide_probe(struct device *dev)
 #endif
 
         memset(&auide_hwif, 0, sizeof(_auide_hwif));
-        auide_hwif.dev                  = 0;
-
-        ahwif->dev = dev;
         ahwif->irq = platform_get_irq(pdev, 0);
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -633,6 +628,8 @@ static int au_ide_probe(struct device *dev)
 
         ide_init_port_hw(hwif, &hw);
 
+        hwif->dev = dev;
+
         hwif->ultra_mask                = 0x0;  /* Disable Ultra DMA */
 #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
         hwif->mwdma_mask                = 0x07; /* Multimode-2 DMA  */
diff --git a/include/asm-mips/mach-au1x00/au1xxx_ide.h b/include/asm-mips/mach-au1x00/au1xxx_ide.h
index aef0edbfe4c6..e4fe26c160ba 100644
--- a/include/asm-mips/mach-au1x00/au1xxx_ide.h
+++ b/include/asm-mips/mach-au1x00/au1xxx_ide.h
@@ -74,7 +74,6 @@ typedef struct
         struct dbdma_cmd        *dma_table_cpu;
         dma_addr_t              dma_table_dma;
 #endif
-        struct device           *dev;
         int                     irq;
         u32                     regbase;
 #ifdef CONFIG_PM