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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-10-11 23:54:02 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-10-11 23:54:02 +0200 |
| commit | 8f4dd2e42637fd61a6366d2cace69091926eaa15 (patch) | |
| tree | 38dc8e475afc27c575ff7f3701e57d5c9e3a9be9 /drivers/ide/pci/cs5520.c | |
| parent | sis5513: don't change UDMA settings when programming PIO (diff) | |
| download | linux-8f4dd2e42637fd61a6366d2cace69091926eaa15.tar.xz linux-8f4dd2e42637fd61a6366d2cace69091926eaa15.zip | |
ide: use only ->set_pio_mode method for programming PIO modes (take 2)
Use ->set_pio_mode method to program PIO modes in ide_set_xfer_rate()
(the only place which used ->speedproc to program PIO modes) and remove
handling of PIO modes from all ->speedproc implementations.
v2:
* Fix pmac_ide_tune_chipset() comment.
There should be no functionality changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/pci/cs5520.c')
| -rw-r--r-- | drivers/ide/pci/cs5520.c | 36 |
1 files changed, 14 insertions, 22 deletions
diff --git a/drivers/ide/pci/cs5520.c b/drivers/ide/pci/cs5520.c index e6af534a7190..1217d2a747fb 100644 --- a/drivers/ide/pci/cs5520.c +++ b/drivers/ide/pci/cs5520.c @@ -66,30 +66,13 @@ static struct pio_clocks cs5520_pio_clocks[]={ {1, 2, 1} }; -static int cs5520_tune_chipset(ide_drive_t *drive, const u8 speed) +static void cs5520_set_pio_mode(ide_drive_t *drive, const u8 pio) { ide_hwif_t *hwif = HWIF(drive); struct pci_dev *pdev = hwif->pci_dev; - int pio = speed; - u8 reg; int controller = drive->dn > 1 ? 1 : 0; + u8 reg; - switch(speed) - { - case XFER_PIO_4: - case XFER_PIO_3: - case XFER_PIO_2: - case XFER_PIO_1: - case XFER_PIO_0: - pio -= XFER_PIO_0; - break; - default: - pio = 0; - printk(KERN_ERR "cs55x0: bad ide timing.\n"); - } - - printk("PIO clocking = %d\n", pio); - /* FIXME: if DMA = 1 do we need to set the DMA bit here ? */ /* 8bit CAT/CRT - 8bit command timing for channel */ @@ -114,12 +97,21 @@ static int cs5520_tune_chipset(ide_drive_t *drive, const u8 speed) reg |= 1<<((drive->dn&1)+5); outb(reg, hwif->dma_base + 0x02 + 8*controller); - return ide_config_drive_speed(drive, speed); + (void)ide_config_drive_speed(drive, XFER_PIO_0 + pio); } -static void cs5520_set_pio_mode(ide_drive_t *drive, const u8 pio) +static int cs5520_tune_chipset(ide_drive_t *drive, const u8 speed) { - cs5520_tune_chipset(drive, XFER_PIO_0 + pio); + printk(KERN_ERR "cs55x0: bad ide timing.\n"); + + cs5520_set_pio_mode(drive, 0); + + /* + * FIXME: this is incorrect to return zero here but + * since all users of ide_set_xfer_rate() ignore + * the return value it is not a problem currently + */ + return 0; } static int cs5520_config_drive_xfer_rate(ide_drive_t *drive) |