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| author | Thomas Gleixner <tglx@linutronix.de> | 2008-05-21 21:14:58 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2008-07-10 07:10:00 +0200 |
| commit | 6b148507d3d042a3c11f4c3f6c0f649c6a89220d (patch) | |
| tree | fb4df1223511e269cbc9cc801dcd22b0ce5f6832 /drivers/clocksource | |
| parent | 543cf4cb3fe6f6cae3651ba918b9c56200b257d0 (diff) | |
| download | linux-3.10-6b148507d3d042a3c11f4c3f6c0f649c6a89220d.tar.gz linux-3.10-6b148507d3d042a3c11f4c3f6c0f649c6a89220d.tar.bz2 linux-3.10-6b148507d3d042a3c11f4c3f6c0f649c6a89220d.zip | |
pmtmr: allow command line override of ioport
Stupid BIOSes do not tell us about the PMTimer,
but we might know where it is.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/clocksource')
| -rw-r--r-- | drivers/clocksource/acpi_pm.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/clocksource/acpi_pm.c b/drivers/clocksource/acpi_pm.c index 7b46faf2231..3baee020afc 100644 --- a/drivers/clocksource/acpi_pm.c +++ b/drivers/clocksource/acpi_pm.c @@ -215,3 +215,22 @@ pm_good: * but we still need to load before device_initcall */ fs_initcall(init_acpi_pm_clocksource); + +/* + * Allow an override of the IOPort. Stupid BIOSes do not tell us about + * the PMTimer, but we might know where it is. + */ +static int __init parse_pmtmr(char *arg) +{ + unsigned long base; + + if (strict_strtoul(arg, 16, &base)) + return -EINVAL; + + printk(KERN_INFO "PMTMR IOPort override: 0x%04lx -> 0x%04lx\n", + pmtmr_ioport, base); + pmtmr_ioport = base; + + return 1; +} +__setup("pmtmr=", parse_pmtmr); |