diff options
author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-02-16 20:40:26 -0500 |
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committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-02-16 20:40:26 -0500 |
commit | 3608b5d71a52c053787dbad6af20c25f7e0b75a9 (patch) | |
tree | 5bd6ac777d32d8426e65e3c31cc1587674771e8c /drivers/ide/pci/cs5520.c | |
parent | 9ef5791e1be91007951477b8ed1530ac1166a8e7 (diff) |
ide: add ide_set_dma() helper (v2)
* 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>
Diffstat (limited to 'drivers/ide/pci/cs5520.c')
-rw-r--r-- | drivers/ide/pci/cs5520.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/ide/pci/cs5520.c b/drivers/ide/pci/cs5520.c index ba6786aabf3..400859a839f 100644 --- a/drivers/ide/pci/cs5520.c +++ b/drivers/ide/pci/cs5520.c | |||
@@ -132,12 +132,11 @@ static void cs5520_tune_drive(ide_drive_t *drive, u8 pio) | |||
132 | 132 | ||
133 | static int cs5520_config_drive_xfer_rate(ide_drive_t *drive) | 133 | static int cs5520_config_drive_xfer_rate(ide_drive_t *drive) |
134 | { | 134 | { |
135 | ide_hwif_t *hwif = HWIF(drive); | ||
136 | |||
137 | /* Tune the drive for PIO modes up to PIO 4 */ | 135 | /* Tune the drive for PIO modes up to PIO 4 */ |
138 | cs5520_tune_drive(drive, 4); | 136 | cs5520_tune_drive(drive, 4); |
137 | |||
139 | /* Then tell the core to use DMA operations */ | 138 | /* Then tell the core to use DMA operations */ |
140 | return hwif->ide_dma_on(drive); | 139 | return 0; |
141 | } | 140 | } |
142 | 141 | ||
143 | /* | 142 | /* |