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pdc202xx_old: kill resetproc() method 

The driver's resetproc() method resets both channels at once -- most probably
by driving RESET- on them.  Not only such reset can severely disturb concurrent
operations on another channel, it also ensues 2-second delay, while there's no
apparent reason why SRST reset being performed prior to resetproc() call needs
to be followed up by another reset.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Sergei Shtylyov 2009-06-07 15:37:05 +02:00 committed by Bartlomiej Zolnierkiewicz
parent 1221e241e3
commit ffddf1717b
1 changed files with 0 additions and 17 deletions
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17
drivers/ide/pdc202xx_old.c
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@ -203,22 +203,6 @@ static int pdc202xx_dma_end(ide_drive_t *drive)
return ide_dma_end(drive);
}
static void pdc202xx_reset(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
unsigned long high_16 = hwif->extra_base - 16;
u8 udma_speed_flag = inb(high_16 | 0x001f);
printk(KERN_WARNING "PDC202xx: software reset...\n");
outb(udma_speed_flag | 0x10, high_16 | 0x001f);
mdelay(100);
outb(udma_speed_flag & ~0x10, high_16 | 0x001f);
mdelay(2000); /* 2 seconds ?! */
ide_set_max_pio(drive);
}
static int init_chipset_pdc202xx(struct pci_dev *dev)
{
unsigned long dmabase = pci_resource_start(dev, 4);
@ -279,7 +263,6 @@ static const struct ide_port_ops pdc2026x_port_ops = {
.set_pio_mode = pdc202xx_set_pio_mode,
.set_dma_mode = pdc202xx_set_mode,
.quirkproc = pdc202xx_quirkproc,
.resetproc = pdc202xx_reset,
.cable_detect = pdc2026x_cable_detect,
};