diff options
| author | Olof Johansson <olof@lixom.net> | 2013-01-28 13:36:23 -0800 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2013-01-28 13:36:23 -0800 |
| commit | 7bcdd8d5e31db4f49ae52580e86723c376ee0999 (patch) | |
| tree | bd252895046e9e17d3ab74b6a4d592b74976ca99 /drivers/cpufreq/longhaul.c | |
| parent | 96e61b8e34ea4982ce57319c19ab73e9e5d74165 (diff) | |
| parent | f8060f5446b1f2782f0a8ca9be2d870ea4198aee (diff) | |
Merge branch 'depends/cleanup' into next/drivers
* depends/cleanup: (375 commits)
ARM: at91: fix board-rm9200-dt after sys_timer conversion
clocksource: use clockevents_config_and_register() where possible
ARM: use clockevents_config_and_register() where possible
clockevents: export clockevents_config_and_register for module use
timer: vt8500: Move timer code to drivers/clocksource
irqchip: Move ARM vic.h to include/linux/irqchip/arm-vic.h
ARM: picoxcell: use common irqchip_init function
ARM: spear: use common irqchip_init function
irqchip: Move ARM VIC to drivers/irqchip
ARM: samsung: remove unused tick.h
ARM: remove unneeded vic.h includes
ARM: remove mach .handle_irq for VIC users
ARM: VIC: set handle_arch_irq in VIC initialization
ARM: VIC: shrink down vic.h
irqchip: Move ARM gic.h to include/linux/irqchip/arm-gic.h
ARM: use common irqchip_init for GIC init
irqchip: Move ARM GIC to drivers/irqchip
ARM: remove mach .handle_irq for GIC users
ARM: GIC: set handle_arch_irq in GIC initialization
ARM: GIC: remove direct use of gic_raise_softirq
...
Diffstat (limited to 'drivers/cpufreq/longhaul.c')
| -rw-r--r-- | drivers/cpufreq/longhaul.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/cpufreq/longhaul.c b/drivers/cpufreq/longhaul.c index f1fa500ac105..1180d536d1eb 100644 --- a/drivers/cpufreq/longhaul.c +++ b/drivers/cpufreq/longhaul.c @@ -77,7 +77,7 @@ static unsigned int longhaul_index; static int scale_voltage; static int disable_acpi_c3; static int revid_errata; - +static int enable; /* Clock ratios multiplied by 10 */ static int mults[32]; @@ -965,6 +965,10 @@ static int __init longhaul_init(void) if (!x86_match_cpu(longhaul_id)) return -ENODEV; + if (!enable) { + printk(KERN_ERR PFX "Option \"enable\" not set. Aborting.\n"); + return -ENODEV; + } #ifdef CONFIG_SMP if (num_online_cpus() > 1) { printk(KERN_ERR PFX "More than 1 CPU detected, " @@ -1021,6 +1025,10 @@ MODULE_PARM_DESC(scale_voltage, "Scale voltage of processor"); * such. */ module_param(revid_errata, int, 0644); MODULE_PARM_DESC(revid_errata, "Ignore CPU Revision ID"); +/* By default driver is disabled to prevent incompatible + * system freeze. */ +module_param(enable, int, 0644); +MODULE_PARM_DESC(enable, "Enable driver"); MODULE_AUTHOR("Dave Jones <davej@redhat.com>"); MODULE_DESCRIPTION("Longhaul driver for VIA Cyrix processors."); |