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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-04-26 22:25:22 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-04-26 22:25:22 +0200 |
| commit | 0d07192297f664afdee36b330ab4fe52a8e38a6a (patch) | |
| tree | 1f2934176abbc1ee7895235f723cb2aa007ef7ad /drivers/ide/ppc | |
| parent | ide: do complete DMA setup in ->init_dma method (take 2) (diff) | |
| download | linux-0d07192297f664afdee36b330ab4fe52a8e38a6a.tar.xz linux-0d07192297f664afdee36b330ab4fe52a8e38a6a.zip | |
ide-pmac: use ->init_dma method
* Move pmif->dma_regs check from pmac_ide_setup_device() to
pmac_ide_init_dma().
* Get 'pmif' from 'hwif->hwif_data' in pmac_ide_init_dma() and replace
'pmac_ide_hwif_t *pmif' argument by 'const struct ide_port_info *d'.
* Add pmac_ide_init_dma() implementation for CONFIG_BLK_DEV_IDEDMA_PMAC=n
case and convert the driver to use ->init_dma method.
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/ppc')
| -rw-r--r-- | drivers/ide/ppc/pmac.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c index 16869cf95e1a..ac36c6c4013f 100644 --- a/drivers/ide/ppc/pmac.c +++ b/drivers/ide/ppc/pmac.c @@ -409,7 +409,7 @@ kauai_lookup_timing(struct kauai_timing* table, int cycle_time) */ #define IDE_WAKEUP_DELAY (1*HZ) -static int pmac_ide_setup_dma(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif); +static int pmac_ide_init_dma(ide_hwif_t *, const struct ide_port_info *); static int pmac_ide_build_dmatable(ide_drive_t *drive, struct request *rq); static void pmac_ide_selectproc(ide_drive_t *drive); static void pmac_ide_kauai_selectproc(ide_drive_t *drive); @@ -931,11 +931,11 @@ static const struct ide_port_ops pmac_ide_port_ops = { }; static const struct ide_port_info pmac_port_info = { + .init_dma = pmac_ide_init_dma, .chipset = ide_pmac, .port_ops = &pmac_ide_port_ops, .host_flags = IDE_HFLAG_SET_PIO_MODE_KEEP_DMA | IDE_HFLAG_POST_SET_MODE | - IDE_HFLAG_NO_DMA | /* no SFF-style DMA */ IDE_HFLAG_UNMASK_IRQS, .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, @@ -1067,10 +1067,7 @@ pmac_ide_setup_device(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif, hw_regs_t *hw) #ifdef CONFIG_BLK_DEV_IDEDMA_PMAC if (pmif->cable_80 == 0) d.udma_mask &= ATA_UDMA2; - /* has a DBDMA controller channel */ - if (pmif->dma_regs == 0 || pmac_ide_setup_dma(pmif, hwif) < 0) #endif - d.udma_mask = d.mwdma_mask = 0; idx[0] = hwif->index; @@ -1677,14 +1674,16 @@ pmac_ide_dma_lost_irq (ide_drive_t *drive) * Allocate the data structures needed for using DMA with an interface * and fill the proper list of functions pointers */ -static int __devinit pmac_ide_setup_dma(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif) +static int __devinit pmac_ide_init_dma(ide_hwif_t *hwif, + const struct ide_port_info *d) { + pmac_ide_hwif_t *pmif = (pmac_ide_hwif_t *)hwif->hwif_data; struct pci_dev *dev = to_pci_dev(hwif->dev); /* We won't need pci_dev if we switch to generic consistent * DMA routines ... */ - if (dev == NULL) + if (dev == NULL || pmif->dma_regs == 0) return -ENODEV; /* * Allocate space for the DBDMA commands. @@ -1714,7 +1713,12 @@ static int __devinit pmac_ide_setup_dma(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif) return 0; } - +#else +static int __devinit pmac_ide_init_dma(ide_hwif_t *hwif, + const struct ide_port_info *d) +{ + return -EOPNOTSUPP; +} #endif /* CONFIG_BLK_DEV_IDEDMA_PMAC */ module_init(pmac_ide_probe); |