From 7569e8dc2213ecc47024ea5edbadc8736487d926 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Sat, 17 Feb 2007 02:40:25 +0100 Subject: 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 --- drivers/ide/cris/ide-cris.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) (limited to 'drivers/ide/cris') diff --git a/drivers/ide/cris/ide-cris.c b/drivers/ide/cris/ide-cris.c index 5797e0b5a13..7afb715b86e 100644 --- a/drivers/ide/cris/ide-cris.c +++ b/drivers/ide/cris/ide-cris.c @@ -821,6 +821,9 @@ init_e100_ide (void) hwif->ultra_mask = cris_ultra_mask; hwif->mwdma_mask = 0x07; /* Multiword DMA 0-2 */ hwif->swdma_mask = 0x07; /* Singleword DMA 0-2 */ + hwif->autodma = 1; + hwif->drives[0].autodma = 1; + hwif->drives[1].autodma = 1; } /* Reset pulse */ @@ -1046,14 +1049,9 @@ static ide_startstop_t cris_dma_intr (ide_drive_t *drive) static int cris_dma_check(ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; - struct hd_driveid* id = drive->id; - if (id && (id->capability & 1)) { - if (ide_use_dma(drive)) { - if (cris_config_drive_for_dma(drive)) - return hwif->ide_dma_on(drive); - } - } + if (ide_use_dma(drive) && cris_config_drive_for_dma(drive)) + return hwif->ide_dma_on(drive); return hwif->ide_dma_off_quietly(drive); } -- cgit v1.2.3