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    Subject[PATCH 07/15] ide: add IDE_HFLAG_DTC2278 host flag
    From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
    Subject: [PATCH] ide: add IDE_HFLAG_DTC2278 host flag

    Add IDE_HFLAG_DTC2278 host flag and use it instead of ide_dtc2278
    chipset type in ide_init_port().

    There should be no functional changes caused by this patch.

    Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
    ---
    drivers/ide/dtc2278.c | 3 ++-
    drivers/ide/ide-probe.c | 2 +-
    include/linux/ide.h | 2 ++
    3 files changed, 5 insertions(+), 2 deletions(-)

    Index: b/drivers/ide/dtc2278.c
    ===================================================================
    --- a/drivers/ide/dtc2278.c
    +++ b/drivers/ide/dtc2278.c
    @@ -100,7 +100,8 @@ static const struct ide_port_info dtc227
    IDE_HFLAG_IO_32BIT |
    /* disallow ->io_32bit changes */
    IDE_HFLAG_NO_IO_32BIT |
    - IDE_HFLAG_NO_DMA,
    + IDE_HFLAG_NO_DMA |
    + IDE_HFLAG_DTC2278,
    .pio_mask = ATA_PIO4,
    };

    Index: b/drivers/ide/ide-probe.c
    ===================================================================
    --- a/drivers/ide/ide-probe.c
    +++ b/drivers/ide/ide-probe.c
    @@ -1056,7 +1056,7 @@ static void ide_init_port(ide_hwif_t *hw
    hwif->tp_ops = d->tp_ops;

    /* ->set_pio_mode for DTC2278 is currently limited to port 0 */
    - if (hwif->chipset != ide_dtc2278 || hwif->channel == 0)
    + if ((hwif->host_flags & IDE_HFLAG_DTC2278) == 0 || hwif->channel == 0)
    hwif->port_ops = d->port_ops;

    hwif->swdma_mask = d->swdma_mask;
    Index: b/include/linux/ide.h
    ===================================================================
    --- a/include/linux/ide.h
    +++ b/include/linux/ide.h
    @@ -1322,6 +1322,8 @@ enum {
    IDE_HFLAG_ERROR_STOPS_FIFO = (1 << 19),
    /* serialize ports */
    IDE_HFLAG_SERIALIZE = (1 << 20),
    + /* host is DTC2278 */
    + IDE_HFLAG_DTC2278 = (1 << 21),
    /* host is TRM290 */
    IDE_HFLAG_TRM290 = (1 << 23),
    /* use 32-bit I/O ops */

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