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icside: use ->init_dma method

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* Add 'const struct ide_port_info *d' argument to icside_dma_init().

* Make icside_dma_init() return an error value and add icside_dma_off_init()
  (->init_dma implementation for case when DMA cannot be enabled).

* Convert the driver to use ->init_dma method.

Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2008-04-26 22:25:23 +02:00
parent 0d07192297
commit 91432f4809
1 changed files with 11 additions and 8 deletions
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19
drivers/ide/arm/icside.c
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@ -384,7 +384,7 @@ static void icside_dma_lost_irq(ide_drive_t *drive)
printk(KERN_ERR "%s: IRQ lost\n", drive->name);
}
static void icside_dma_init(ide_hwif_t *hwif)
static int icside_dma_init(ide_hwif_t *hwif, const struct ide_port_info *d)
{
hwif->dmatable_cpu = NULL;
hwif->dmatable_dma = 0;
@ -397,11 +397,16 @@ static void icside_dma_init(ide_hwif_t *hwif)
hwif->ide_dma_test_irq = icside_dma_test_irq;
hwif->dma_timeout = icside_dma_timeout;
hwif->dma_lost_irq = icside_dma_lost_irq;
return 0;
}
#else
#define icside_dma_init(hwif) (0)
#endif
static int icside_dma_off_init(ide_hwif_t *hwif, const struct ide_port_info *d)
{
return -EOPNOTSUPP;
}
static ide_hwif_t *
icside_setup(void __iomem *base, struct cardinfo *info, struct expansion_card *ec)
{
@ -468,9 +473,9 @@ icside_register_v5(struct icside_state *state, struct expansion_card *ec)
}
static const struct ide_port_info icside_v6_port_info __initdata = {
.init_dma = icside_dma_off_init,
.port_ops = &icside_v6_no_dma_port_ops,
.host_flags = IDE_HFLAG_SERIALIZE |
IDE_HFLAG_NO_DMA | /* no SFF-style DMA */
IDE_HFLAG_NO_AUTOTUNE,
.mwdma_mask = ATA_MWDMA2,
.swdma_mask = ATA_SWDMA2,
@ -543,11 +548,9 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec)
mate->select_data = sel | 1;
if (ec->dma != NO_DMA && !request_dma(ec->dma, hwif->name)) {
icside_dma_init(hwif);
icside_dma_init(mate);
d.init_dma = icside_dma_init;
d.port_ops = &icside_v6_dma_port_ops;
} else
d.mwdma_mask = d.swdma_mask = 0;
}
idx[0] = hwif->index;
idx[1] = mate->index;