diff options
Diffstat (limited to 'drivers/ide/pci/hpt366.c')
-rw-r--r-- | drivers/ide/pci/hpt366.c | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/drivers/ide/pci/hpt366.c b/drivers/ide/pci/hpt366.c index 6357bb6269ab..d03a231d965e 100644 --- a/drivers/ide/pci/hpt366.c +++ b/drivers/ide/pci/hpt366.c @@ -929,64 +929,6 @@ static void hpt3xxn_rw_disk(ide_drive_t *drive, struct request *rq) hpt3xxn_set_clock(HWIF(drive), rq_data_dir(rq) ? 0x23 : 0x21); } -/* - * Set/get power state for a drive. - * NOTE: affects both drives on each channel. - * - * When we turn the power back on, we need to re-initialize things. - */ -#define TRISTATE_BIT 0x8000 - -static int hpt3xx_busproc(ide_drive_t *drive, int state) -{ - ide_hwif_t *hwif = HWIF(drive); - struct pci_dev *dev = to_pci_dev(hwif->dev); - u8 mcr_addr = hwif->select_data + 2; - u8 resetmask = hwif->channel ? 0x80 : 0x40; - u8 bsr2 = 0; - u16 mcr = 0; - - hwif->bus_state = state; - - /* Grab the status. */ - pci_read_config_word(dev, mcr_addr, &mcr); - pci_read_config_byte(dev, 0x59, &bsr2); - - /* - * Set the state. We don't set it if we don't need to do so. - * Make sure that the drive knows that it has failed if it's off. - */ - switch (state) { - case BUSSTATE_ON: - if (!(bsr2 & resetmask)) - return 0; - hwif->drives[0].failures = hwif->drives[1].failures = 0; - - pci_write_config_byte(dev, 0x59, bsr2 & ~resetmask); - pci_write_config_word(dev, mcr_addr, mcr & ~TRISTATE_BIT); - return 0; - case BUSSTATE_OFF: - if ((bsr2 & resetmask) && !(mcr & TRISTATE_BIT)) - return 0; - mcr &= ~TRISTATE_BIT; - break; - case BUSSTATE_TRISTATE: - if ((bsr2 & resetmask) && (mcr & TRISTATE_BIT)) - return 0; - mcr |= TRISTATE_BIT; - break; - default: - return -EINVAL; - } - - hwif->drives[0].failures = hwif->drives[0].max_failures + 1; - hwif->drives[1].failures = hwif->drives[1].max_failures + 1; - - pci_write_config_word(dev, mcr_addr, mcr); - pci_write_config_byte(dev, 0x59, bsr2 | resetmask); - return 0; -} - /** * hpt37x_calibrate_dpll - calibrate the DPLL * @dev: PCI device @@ -1334,7 +1276,6 @@ static void __devinit init_hwif_hpt366(ide_hwif_t *hwif) hwif->quirkproc = &hpt3xx_quirkproc; hwif->maskproc = &hpt3xx_maskproc; - hwif->busproc = &hpt3xx_busproc; hwif->udma_filter = &hpt3xx_udma_filter; hwif->mdma_filter = &hpt3xx_mdma_filter; |