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>

diff --git a/drivers/ide/dtc2278.c b/drivers/ide/dtc2278.c
index 689b2e4..c6b1381 100644 (file)
--- a/drivers/ide/dtc2278.c
+++ b/drivers/ide/dtc2278.c
@@ -100,7 +100,8 @@ static const struct ide_port_info dtc2278_port_info __initdata = {
                                  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,
 };
 

diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 75b79cc..62270f4 100644 (file)
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1061,7 +1061,7 @@ static void ide_init_port(ide_hwif_t *hwif, unsigned int port,
                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;

diff --git a/include/linux/ide.h b/include/linux/ide.h
index 901d323..732a05f 100644 (file)
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1325,6 +1325,8 @@ 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 */