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author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-02-17 02:40:25 +0100 |
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committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-02-17 02:40:25 +0100 |
commit | 7569e8dc2213ecc47024ea5edbadc8736487d926 (patch) | |
tree | 44c47e85b5e87c75972c077da31f198c4f597688 /Documentation/DocBook | |
parent | 056a697b7388844a1341e92e277bff8e5bf61ec9 (diff) |
ide: add ide_use_fast_pio() helper (v3)
* add ide_use_fast_pio() helper for use by host drivers
* add DMA capability and hwif->autodma checks to ide_use_dma()
- au1xxx-ide/it8213/it821x drivers didn't check for (id->capability & 1)
[ for the IT8211/2 in SMART mode this check shouldn't be made but since
in it821x_fixups() we set DMA bit explicitly:
if(strstr(id->model, "Integrated Technology Express")) {
/* In raid mode the ident block is slightly buggy
We need to set the bits so that the IDE layer knows
LBA28. LBA48 and DMA ar valid */
id->capability |= 3; /* LBA28, DMA */
we are better off using generic helper if we can ]
- ide-cris driver didn't set ->autodma
[ before the patch hwif->autodma was only checked in the chipset specific
hwif->ide_dma_check implementations, for ide-cris it is cris_dma_check()
function so there no behavior change here ]
v2:
* updated patch description (thanks to Alan Cox for the feedback)
v3:
* updated for scc_pata driver
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'Documentation/DocBook')
0 files changed, 0 insertions, 0 deletions