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Date: Wed, 27 Feb 2008 23:21:17 +0100
From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To: linux-ide@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Subject: [PATCH 3/4] ide: use ide_legacy_device_add() for qd65xx
* Add 'unsigned long config' argument to ide_legacy_device_add()
for setting hwif->config_data.
* Use ide_find_port_slot() instead of ide_find_port() in
ide_legacy_device_add().
* Handle IDE_HFLAG_QD_2ND_PORT and IDE_HFLAG_SINGLE host flags in
ide_legacy_device_add().
* Convert qd65xx host driver to use ide_legacy_device_add().
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
---
drivers/ide/ide-probe.c | 19 ++++++++++----
drivers/ide/legacy/qd65xx.c | 58 +++++---------------------------------------
include/linux/ide.h | 2 -
3 files changed, 22 insertions(+), 57 deletions(-)
Index: b/drivers/ide/ide-probe.c
===================================================================
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1630,7 +1630,7 @@ void ide_port_scan(ide_hwif_t *hwif)
}
EXPORT_SYMBOL_GPL(ide_port_scan);
-int ide_legacy_device_add(const struct ide_port_info *d)
+int ide_legacy_device_add(const struct ide_port_info *d, unsigned long config)
{
ide_hwif_t *hwif, *mate;
u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
@@ -1644,15 +1644,24 @@ int ide_legacy_device_add(const struct i
ide_std_init_ports(&hw[1], 0x170, 0x376);
hw[1].irq = 15;
- hwif = ide_find_port();
+ hwif = ide_find_port_slot(d);
if (hwif) {
- ide_init_port_hw(hwif, &hw[0]);
- idx[0] = hwif->index;
+ u8 j = (d->host_flags & IDE_HFLAG_QD_2ND_PORT) ? 1 : 0;
+
+ ide_init_port_hw(hwif, &hw[j]);
+ if (config)
+ hwif->config_data = config;
+ idx[j] = hwif->index;
}
- mate = ide_find_port();
+ if (hwif == NULL && (d->host_flags & IDE_HFLAG_SINGLE))
+ return -ENOENT;
+
+ mate = ide_find_port_slot(d);
if (mate) {
ide_init_port_hw(mate, &hw[1]);
+ if (config)
+ mate->config_data = config;
idx[1] = mate->index;
}
Index: b/drivers/ide/legacy/qd65xx.c
===================================================================
--- a/drivers/ide/legacy/qd65xx.c
+++ b/drivers/ide/legacy/qd65xx.c
@@ -333,10 +333,8 @@ static const struct ide_port_info qd65xx
static int __init qd_probe(int base)
{
- ide_hwif_t *hwif;
+ int rc;
u8 config, unit;
- u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
- hw_regs_t hw[2];
struct ide_port_info d = qd65xx_port_info;
config = inb(QD_CONFIG_PORT);
@@ -349,14 +347,6 @@ static int __init qd_probe(int base)
if (unit)
d.host_flags |= IDE_HFLAG_QD_2ND_PORT;
- memset(&hw, 0, sizeof(hw));
-
- ide_std_init_ports(&hw[0], 0x1f0, 0x3f6);
- hw[0].irq = 14;
-
- ide_std_init_ports(&hw[1], 0x170, 0x376);
- hw[1].irq = 15;
-
if ((config & 0xf0) == QD_CONFIG_QD6500) {
if (qd_testreg(base))
@@ -376,19 +366,9 @@ static int __init qd_probe(int base)
d.port_ops = &qd6500_port_ops;
d.host_flags |= IDE_HFLAG_SINGLE;
- hwif = ide_find_port_slot(&d);
- if (hwif == NULL)
- return -ENOENT;
-
- ide_init_port_hw(hwif, &hw[unit]);
-
- hwif->config_data = (base << 8) | config;
-
- idx[unit] = hwif->index;
-
- ide_device_add(idx, &d);
+ rc = ide_legacy_device_add(&d, (base << 8) | config);
- return 1;
+ return (rc == 0) ? 1 : rc;
}
if (((config & 0xf0) == QD_CONFIG_QD6580_A) ||
@@ -418,40 +398,16 @@ static int __init qd_probe(int base)
d.host_flags |= IDE_HFLAG_SINGLE;
- hwif = ide_find_port_slot(&d);
- if (hwif == NULL)
- return -ENOENT;
+ rc = ide_legacy_device_add(&d, (base << 8) | config);
- ide_init_port_hw(hwif, &hw[unit]);
-
- hwif->config_data = (base << 8) | config;
-
- idx[unit] = hwif->index;
-
- ide_device_add(idx, &d);
-
- return 1;
+ return (rc == 0) ? 1 : rc;
} else {
- ide_hwif_t *mate;
-
/* secondary enabled */
printk(KERN_INFO "qd6580: dual IDE board\n");
- hwif = ide_find_port();
- if (hwif) {
- ide_init_port_hw(hwif, &hw[0]);
- idx[0] = hwif->index;
- }
-
- mate = ide_find_port();
- if (mate) {
- ide_init_port_hw(mate, &hw[1]);
- idx[1] = mate->index;
- }
-
- ide_device_add(idx, &d);
+ rc = ide_legacy_device_add(&d, (base << 8) | config);
- return 0; /* no other qd65xx possible */
+ return rc; /* no other qd65xx possible */
}
}
/* no qd65xx found */
Index: b/include/linux/ide.h
===================================================================
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1215,7 +1215,7 @@ void ide_undecoded_slave(ide_drive_t *);
int ide_device_add_all(u8 *idx, const struct ide_port_info *);
int ide_device_add(u8 idx[4], const struct ide_port_info *);
-int ide_legacy_device_add(const struct ide_port_info *);
+int ide_legacy_device_add(const struct ide_port_info *, unsigned long);
void ide_port_unregister_devices(ide_hwif_t *);
void ide_port_scan(ide_hwif_t *);
--
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