ide: add IDE_HFLAG_4DRIVES host flag

Add IDE_HFLAG_4DRIVES host flag and use it instead of ide_4drives
chipset type in ide_init_port().

There should be no functional changes caused by this patch.
Signed-off-by: 's avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent 2787cb8a
......@@ -23,7 +23,8 @@ static const struct ide_port_ops ide_4drives_port_ops = {
static const struct ide_port_info ide_4drives_port_info = {
.port_ops = &ide_4drives_port_ops,
.host_flags = IDE_HFLAG_SERIALIZE | IDE_HFLAG_NO_DMA,
.host_flags = IDE_HFLAG_SERIALIZE | IDE_HFLAG_NO_DMA |
IDE_HFLAG_4DRIVES,
};
static int __init ide_4drives_init(void)
......
......@@ -1381,8 +1381,8 @@ int ide_host_register(struct ide_host *host, const struct ide_port_info *d,
if (ide_probe_port(hwif) == 0)
hwif->present = 1;
if (hwif->chipset != ide_4drives || !hwif->mate ||
!hwif->mate->present) {
if ((hwif->host_flags & IDE_HFLAG_4DRIVES) == 0 ||
hwif->mate == NULL || hwif->mate->present == 0) {
if (ide_register_port(hwif)) {
ide_disable_port(hwif);
continue;
......
......@@ -1327,6 +1327,8 @@ enum {
IDE_HFLAG_SERIALIZE = (1 << 20),
/* host is DTC2278 */
IDE_HFLAG_DTC2278 = (1 << 21),
/* 4 devices on a single set of I/O ports */
IDE_HFLAG_4DRIVES = (1 << 22),
/* host is TRM290 */
IDE_HFLAG_TRM290 = (1 << 23),
/* use 32-bit I/O ops */
......
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