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linux-sg2042
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icside: use hwif->dev 

* Setup hwif->dev in icside_setup().

* Use hwif->dev instead of state->dev in icside_build_sglist(),
  icside_dma_end(), icside_dma_start() and icside_dma_setup().

* Remove no longer needed 'dev' field from struct icside_state.

Cc: Russell King <rmk@arm.linux.org.uk>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2008-02-01 23:09:32 +01:00
parent 5df37c34a3
commit f8341c1c19
1 changed files with 14 additions and 17 deletions
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31
drivers/ide/arm/icside.c
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@ -71,8 +71,6 @@ struct icside_state {
void __iomem *irq_port;
void __iomem *ioc_base;
unsigned int type;
/* parent device... until the IDE core gets one of its own */
struct device *dev;
ide_hwif_t *hwif[2];
};
@ -209,7 +207,6 @@ static void icside_maskproc(ide_drive_t *drive, int mask)
static void icside_build_sglist(ide_drive_t *drive, struct request *rq)
{
ide_hwif_t *hwif = drive->hwif;
struct icside_state *state = hwif->hwif_data;
struct scatterlist *sg = hwif->sg_table;
ide_map_sg(drive, rq);
@ -219,7 +216,7 @@ static void icside_build_sglist(ide_drive_t *drive, struct request *rq)
else
hwif->sg_dma_direction = DMA_TO_DEVICE;
hwif->sg_nents = dma_map_sg(state->dev, sg, hwif->sg_nents,
hwif->sg_nents = dma_map_sg(hwif->dev, sg, hwif->sg_nents,
hwif->sg_dma_direction);
}
@ -294,33 +291,33 @@ static void icside_dma_host_set(ide_drive_t *drive, int on)
static int icside_dma_end(ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
struct icside_state *state = hwif->hwif_data;
struct expansion_card *ec = ECARD_DEV(hwif->dev);
drive->waiting_for_dma = 0;
disable_dma(ECARD_DEV(state->dev)->dma);
disable_dma(ec->dma);
/* Teardown mappings after DMA has completed. */
dma_unmap_sg(state->dev, hwif->sg_table, hwif->sg_nents,
dma_unmap_sg(hwif->dev, hwif->sg_table, hwif->sg_nents,
hwif->sg_dma_direction);
return get_dma_residue(ECARD_DEV(state->dev)->dma) != 0;
return get_dma_residue(ec->dma) != 0;
}
static void icside_dma_start(ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
struct icside_state *state = hwif->hwif_data;
struct expansion_card *ec = ECARD_DEV(hwif->dev);
/* We can not enable DMA on both channels simultaneously. */
BUG_ON(dma_channel_active(ECARD_DEV(state->dev)->dma));
enable_dma(ECARD_DEV(state->dev)->dma);
BUG_ON(dma_channel_active(ec->dma));
enable_dma(ec->dma);
}
static int icside_dma_setup(ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
struct icside_state *state = hwif->hwif_data;
struct expansion_card *ec = ECARD_DEV(hwif->dev);
struct request *rq = hwif->hwgroup->rq;
unsigned int dma_mode;
@ -332,7 +329,7 @@ static int icside_dma_setup(ide_drive_t *drive)
/*
* We can not enable DMA on both channels.
*/
BUG_ON(dma_channel_active(ECARD_DEV(state->dev)->dma));
BUG_ON(dma_channel_active(ec->dma));
icside_build_sglist(drive, rq);
@ -349,14 +346,14 @@ static int icside_dma_setup(ide_drive_t *drive)
/*
* Select the correct timing for this drive.
*/
set_dma_speed(ECARD_DEV(state->dev)->dma, drive->drive_data);
set_dma_speed(ec->dma, drive->drive_data);
/*
* Tell the DMA engine about the SG table and
* data direction.
*/
set_dma_sg(ECARD_DEV(state->dev)->dma, hwif->sg_table, hwif->sg_nents);
set_dma_mode(ECARD_DEV(state->dev)->dma, dma_mode);
set_dma_sg(ec->dma, hwif->sg_table, hwif->sg_nents);
set_dma_mode(ec->dma, dma_mode);
drive->waiting_for_dma = 1;
@ -444,6 +441,7 @@ icside_setup(void __iomem *base, struct cardinfo *info, struct expansion_card *e
hwif->noprobe = 0;
hwif->chipset = ide_acorn;
hwif->gendev.parent = &ec->dev;
hwif->dev = &ec->dev;
}
return hwif;
@ -591,7 +589,6 @@ icside_probe(struct expansion_card *ec, const struct ecard_id *id)
}
state->type = ICS_TYPE_NOTYPE;
state->dev = &ec->dev;
idmem = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0);
if (idmem) {