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>
This commit is contained in:
Bartlomiej Zolnierkiewicz
parent
2dde7861af
commit
50672e5d74
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@ -414,7 +414,6 @@ static void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif)
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hwif->resetproc = tmp_hwif->resetproc;
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hwif->maskproc = tmp_hwif->maskproc;
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hwif->quirkproc = tmp_hwif->quirkproc;
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hwif->busproc = tmp_hwif->busproc;
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hwif->ata_input_data = tmp_hwif->ata_input_data;
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hwif->ata_output_data = tmp_hwif->ata_output_data;
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@ -1071,8 +1070,6 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device
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case HDIO_SET_BUSSTATE:
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if (!capable(CAP_SYS_ADMIN))
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return -EACCES;
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if (HWIF(drive)->busproc)
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return HWIF(drive)->busproc(drive, (int)arg);
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return -EOPNOTSUPP;
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default:
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return -EINVAL;
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@ -929,64 +929,6 @@ static void hpt3xxn_rw_disk(ide_drive_t *drive, struct request *rq)
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hpt3xxn_set_clock(HWIF(drive), rq_data_dir(rq) ? 0x23 : 0x21);
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}
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/*
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* Set/get power state for a drive.
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* NOTE: affects both drives on each channel.
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*
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* When we turn the power back on, we need to re-initialize things.
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*/
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#define TRISTATE_BIT 0x8000
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static int hpt3xx_busproc(ide_drive_t *drive, int state)
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{
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ide_hwif_t *hwif = HWIF(drive);
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struct pci_dev *dev = to_pci_dev(hwif->dev);
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u8 mcr_addr = hwif->select_data + 2;
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u8 resetmask = hwif->channel ? 0x80 : 0x40;
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u8 bsr2 = 0;
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u16 mcr = 0;
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hwif->bus_state = state;
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/* Grab the status. */
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pci_read_config_word(dev, mcr_addr, &mcr);
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pci_read_config_byte(dev, 0x59, &bsr2);
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/*
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* Set the state. We don't set it if we don't need to do so.
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* Make sure that the drive knows that it has failed if it's off.
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*/
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switch (state) {
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case BUSSTATE_ON:
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if (!(bsr2 & resetmask))
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return 0;
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hwif->drives[0].failures = hwif->drives[1].failures = 0;
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pci_write_config_byte(dev, 0x59, bsr2 & ~resetmask);
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pci_write_config_word(dev, mcr_addr, mcr & ~TRISTATE_BIT);
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return 0;
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case BUSSTATE_OFF:
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if ((bsr2 & resetmask) && !(mcr & TRISTATE_BIT))
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return 0;
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mcr &= ~TRISTATE_BIT;
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break;
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case BUSSTATE_TRISTATE:
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if ((bsr2 & resetmask) && (mcr & TRISTATE_BIT))
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return 0;
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mcr |= TRISTATE_BIT;
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break;
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default:
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return -EINVAL;
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}
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hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
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hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
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pci_write_config_word(dev, mcr_addr, mcr);
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pci_write_config_byte(dev, 0x59, bsr2 | resetmask);
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return 0;
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}
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/**
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* hpt37x_calibrate_dpll - calibrate the DPLL
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* @dev: PCI device
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@ -1334,7 +1276,6 @@ static void __devinit init_hwif_hpt366(ide_hwif_t *hwif)
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hwif->quirkproc = &hpt3xx_quirkproc;
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hwif->maskproc = &hpt3xx_maskproc;
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hwif->busproc = &hpt3xx_busproc;
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hwif->udma_filter = &hpt3xx_udma_filter;
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hwif->mdma_filter = &hpt3xx_mdma_filter;
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@ -562,7 +562,6 @@ ide_init_sgiioc4(ide_hwif_t * hwif)
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clear interrupts */
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hwif->maskproc = &sgiioc4_maskproc; /* Mask on/off NIEN register */
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hwif->quirkproc = NULL;
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hwif->busproc = NULL;
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hwif->INB = &sgiioc4_INB;
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@ -369,48 +369,6 @@ static int siimage_mmio_ide_dma_test_irq (ide_drive_t *drive)
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return 0;
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}
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/**
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* sil_sata_busproc - bus isolation IOCTL
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* @drive: drive to isolate/restore
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* @state: bus state to set
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*
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* Used by the SII3112 to handle bus isolation. As this is a
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* SATA controller the work required is quite limited, we
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* just have to clean up the statistics
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*/
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static int sil_sata_busproc(ide_drive_t * drive, int state)
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{
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ide_hwif_t *hwif = HWIF(drive);
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struct pci_dev *dev = to_pci_dev(hwif->dev);
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u32 stat_config = 0;
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unsigned long addr = siimage_selreg(hwif, 0);
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if (hwif->mmio)
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stat_config = readl((void __iomem *)addr);
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else
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pci_read_config_dword(dev, addr, &stat_config);
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switch (state) {
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case BUSSTATE_ON:
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hwif->drives[0].failures = 0;
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hwif->drives[1].failures = 0;
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break;
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case BUSSTATE_OFF:
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hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
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hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
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break;
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case BUSSTATE_TRISTATE:
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hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
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hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
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break;
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default:
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return -EINVAL;
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}
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hwif->bus_state = state;
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return 0;
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}
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/**
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* sil_sata_reset_poll - wait for SATA reset
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* @drive: drive we are resetting
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@ -818,7 +776,6 @@ static void __devinit init_hwif_siimage(ide_hwif_t *hwif)
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if (sata) {
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static int first = 1;
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hwif->busproc = &sil_sata_busproc;
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hwif->reset_poll = &sil_sata_reset_poll;
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hwif->pre_reset = &sil_sata_pre_reset;
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hwif->udma_filter = &sil_sata_udma_filter;
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@ -126,40 +126,6 @@ static void tc86c001_dma_start(ide_drive_t *drive)
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ide_dma_start(drive);
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}
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static int tc86c001_busproc(ide_drive_t *drive, int state)
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{
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ide_hwif_t *hwif = HWIF(drive);
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unsigned long sc_base = hwif->config_data;
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u16 scr1;
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/* System Control 1 Register bit 11 (ATA Hard Reset) read */
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scr1 = inw(sc_base + 0x00);
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switch (state) {
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case BUSSTATE_ON:
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if (!(scr1 & 0x0800))
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return 0;
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scr1 &= ~0x0800;
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hwif->drives[0].failures = hwif->drives[1].failures = 0;
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break;
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case BUSSTATE_OFF:
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if (scr1 & 0x0800)
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return 0;
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scr1 |= 0x0800;
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hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
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hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
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break;
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default:
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return -EINVAL;
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}
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/* System Control 1 Register bit 11 (ATA Hard Reset) write */
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outw(scr1, sc_base + 0x00);
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return 0;
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}
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static u8 __devinit tc86c001_cable_detect(ide_hwif_t *hwif)
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{
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struct pci_dev *dev = to_pci_dev(hwif->dev);
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@ -194,8 +160,6 @@ static void __devinit init_hwif_tc86c001(ide_hwif_t *hwif)
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hwif->set_pio_mode = &tc86c001_set_pio_mode;
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hwif->set_dma_mode = &tc86c001_set_mode;
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hwif->busproc = &tc86c001_busproc;
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hwif->cable_detect = tc86c001_cable_detect;
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if (!hwif->dma_base)
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@ -502,8 +502,6 @@ typedef struct hwif_s {
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void (*maskproc)(ide_drive_t *, int);
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/* check host's drive quirk list */
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void (*quirkproc)(ide_drive_t *);
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/* driver soft-power interface */
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int (*busproc)(ide_drive_t *, int);
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#endif
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u8 (*mdma_filter)(ide_drive_t *);
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u8 (*udma_filter)(ide_drive_t *);
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