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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-08-20 22:42:57 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-08-20 22:42:57 +0200 |
| commit | 76e1faa7cfd464fa06a9c2cafd633d643daafeae (patch) | |
| tree | 1061d01662114d064e60cc29611ab330c900f89e /drivers/ide/pci/hpt34x.c | |
| parent | 88b47040f8365ad56ecfd4103e964ba9b695987e (diff) | |
| download | blackbird-op-linux-76e1faa7cfd464fa06a9c2cafd633d643daafeae.tar.gz blackbird-op-linux-76e1faa7cfd464fa06a9c2cafd633d643daafeae.zip | |
hpt34x: fix CONFIG_HPT34X_AUTODMA=n handling
Programming DMA mode may destroy current PIO mode setting so if
CONFIG_HPT34X_AUTODMA=n (the default case) make ide_tune_dma() fail
early by disabling all host DMA masks and re-tune PIO mode.
This fix doesn't help with the driver being broken but is needed
for some other changes.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/pci/hpt34x.c')
| -rw-r--r-- | drivers/ide/pci/hpt34x.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/ide/pci/hpt34x.c b/drivers/ide/pci/hpt34x.c index 19778c5fe711..cb8fe5643d3b 100644 --- a/drivers/ide/pci/hpt34x.c +++ b/drivers/ide/pci/hpt34x.c @@ -89,11 +89,7 @@ static int hpt34x_config_drive_xfer_rate (ide_drive_t *drive) drive->init_speed = 0; if (ide_tune_dma(drive)) -#ifndef CONFIG_HPT34X_AUTODMA return -1; -#else - return 0; -#endif if (ide_use_fast_pio(drive)) hpt34x_tune_drive(drive, 255); @@ -160,9 +156,11 @@ static void __devinit init_hwif_hpt34x(ide_hwif_t *hwif) if (!hwif->dma_base) return; +#ifdef CONFIG_HPT34X_AUTODMA hwif->ultra_mask = 0x07; hwif->mwdma_mask = 0x07; hwif->swdma_mask = 0x07; +#endif hwif->ide_dma_check = &hpt34x_config_drive_xfer_rate; if (!noautodma) |
