ide: remove dead/obsolete ->busproc method

->busproc method is used by HDIO_SET_BUSSTATE ioctl but it has no chance
of working as intended (in 2.4.x days) because to issue an ioctl there
is a device node needed and:

- for BUSSTATE_TRISTATE+OFF it is too late (devices are already gone)

- for BUSSTATE_TRISTATE+ON it is too early (devices are not registered yet)

Just remove ->busproc method for now (it was only implemented by hpt366,
siimage and tc86c001 host drivers).

Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

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;