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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-02-16 20:40:26 -0500
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-02-16 20:40:26 -0500
commit3608b5d71a52c053787dbad6af20c25f7e0b75a9 (patch)
tree5bd6ac777d32d8426e65e3c31cc1587674771e8c /drivers/ide/pci/cs5520.c
parent9ef5791e1be91007951477b8ed1530ac1166a8e7 (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.c5
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
133static int cs5520_config_drive_xfer_rate(ide_drive_t *drive) 133static 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/*