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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-02-01 23:09:35 +0100 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-02-01 23:09:35 +0100 |
| commit | 537f06c5deaffbbe155bcc898369f889e7f3e647 (patch) | |
| tree | b50e791f9a33a7e510dd7439ec047ca08c857b9f /drivers | |
| parent | 422278ef9585b0be62b1bd6d48935a7529aa5094 (diff) | |
| download | linux-537f06c5deaffbbe155bcc898369f889e7f3e647.tar.gz linux-537f06c5deaffbbe155bcc898369f889e7f3e647.tar.bz2 linux-537f06c5deaffbbe155bcc898369f889e7f3e647.zip | |
ide: cleanup ide_system_bus_speed()
Use the facts that:
* When ide_init() is called 'system_bus_speed' always equals zero.
* system_bus_clock() is never called before ide_init().
and:
* Move printk() from ide_system_bus_speed() to ide_init().
* Don't assign 'system_bus_speed' in ide_system_bus_speed().
* Don't call ide_system_bus_speed() in system_bus_clock().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/ide/ide.c | 28 |
1 files changed, 11 insertions, 17 deletions
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index 725187bc6003..7fa30acf0fc5 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -240,22 +240,12 @@ static int ide_system_bus_speed(void) #define pci_default 0 #endif /* CONFIG_PCI */ - if (!system_bus_speed) { - if (idebus_parameter) { - /* user supplied value */ - system_bus_speed = idebus_parameter; - } else if (pci_dev_present(pci_default)) { - /* safe default value for PCI */ - system_bus_speed = 33; - } else { - /* safe default value for VESA and PCI */ - system_bus_speed = 50; - } - printk(KERN_INFO "ide: Assuming %dMHz system bus speed " - "for PIO modes%s\n", system_bus_speed, - idebus_parameter ? "" : "; override with idebus=xx"); - } - return system_bus_speed; + /* user supplied value */ + if (idebus_parameter) + return idebus_parameter; + + /* safe default value for PCI or VESA and PCI*/ + return pci_dev_present(pci_default) ? 33 : 50; } ide_hwif_t * ide_find_port(unsigned long base) @@ -912,7 +902,7 @@ static int set_unmaskirq(ide_drive_t *drive, int arg) int system_bus_clock (void) { - return((int) ((!system_bus_speed) ? ide_system_bus_speed() : system_bus_speed )); + return system_bus_speed; } EXPORT_SYMBOL(system_bus_clock); @@ -1667,6 +1657,10 @@ static int __init ide_init(void) printk(KERN_INFO "Uniform Multi-Platform E-IDE driver " REVISION "\n"); system_bus_speed = ide_system_bus_speed(); + printk(KERN_INFO "ide: Assuming %dMHz system bus speed " + "for PIO modes%s\n", system_bus_speed, + idebus_parameter ? "" : "; override with idebus=xx"); + ret = bus_register(&ide_bus_type); if (ret < 0) { printk(KERN_WARNING "IDE: bus_register error: %d\n", ret); |