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* add ide_set_dma() helper and make ide_hwif_t.ide_dma_check return
-1 when DMA needs to be disabled (== need to call ->ide_dma_off_quietly)
0 when DMA needs to be enabled (== need to call ->ide_dma_on)
1 when DMA setting shouldn't be changed
* fix IDE code to use ide_set_dma() instead if using ->ide_dma_check directly
v2:
* updated for scc_pata
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* set ATAPI/IORDY/TIME bits correctly in it8213_tuneproc()
* fix UDMA/MWDMA/SWDMA masks in it8213_init_hwif()
* in it8213_tune_chipset() SWDMA2 mode should be used instead of MWDMA0
* backport various fixes from piix/slc90e66 drivers:
- in it8213_tuneproc() the highest possible PIO mode is PIO4 (not PIO5)
- clear ATAPI/IORDY/TIME bits before setting them also for slave device
- use ->speedproc in it8213_config_drive_for_dma()
- don't try to tune PIO in config_chipset_for_pio()
- simplify is_slave calculation in it8213_tuneproc()
- misc cleanups
* fix it8213_ratemask() and it8213_tuneproc() comments
* simplify it8213_init_hwif()
* remove init_chipset_it8213()
* add missing Copyrights and update MODULE_AUTHOR()
* CodingStyle cleanups
* remove dead code
v2:
* PCI_DEVICE_ID_ITE_8213 is only defined in -mm kernels,
so just use PCI Device ID (0x8213) directly
* fix ->ultra_mask incorrectly changed to 0x3f in v1 version of the patch
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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