ide: add ide_use_fast_pio() helper (v3)
authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Sat, 17 Feb 2007 01:40:25 +0000 (02:40 +0100)
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Sat, 17 Feb 2007 01:40:25 +0000 (02:40 +0100)
commit7569e8dc2213ecc47024ea5edbadc8736487d926
tree44c47e85b5e87c75972c077da31f198c4f597688
parent056a697b7388844a1341e92e277bff8e5bf61ec9
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>
20 files changed:
drivers/ide/cris/ide-cris.c
drivers/ide/ide-dma.c
drivers/ide/ide-lib.c
drivers/ide/pci/aec62xx.c
drivers/ide/pci/atiixp.c
drivers/ide/pci/cmd64x.c
drivers/ide/pci/cs5535.c
drivers/ide/pci/hpt34x.c
drivers/ide/pci/hpt366.c
drivers/ide/pci/pdc202xx_new.c
drivers/ide/pci/pdc202xx_old.c
drivers/ide/pci/piix.c
drivers/ide/pci/serverworks.c
drivers/ide/pci/siimage.c
drivers/ide/pci/sis5513.c
drivers/ide/pci/slc90e66.c
drivers/ide/pci/tc86c001.c
drivers/ide/pci/triflex.c
drivers/ide/ppc/scc_pata.c
include/linux/ide.h