From: Dominik Brodowski Date: Wed, 18 May 2005 17:49:00 +0000 (-0400) Subject: [ACPI] Always set P-state on initialization X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=4b31e77455b868b43e665edceb111c9a330c8e0f;p=linux-beck.git [ACPI] Always set P-state on initialization Otherwise a platform that supports ACPI based cpufreq and boots up at lowest possible speed could stay there forever. This because the governor may request max speed, but the code doesn't update if there is no change in speed, and it assumed the initial state of max speed. http://bugzilla.kernel.org/show_bug.cgi?id=4634 Signed-off-by: Dominik Brodowski Signed-off-by: Venkatesh Pallipadi Signed-off-by: Len Brown --- diff --git a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c index 963e17aa205d..60a9e54dd20e 100644 --- a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c +++ b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c @@ -442,6 +442,13 @@ acpi_cpufreq_cpu_init ( (u32) data->acpi_data.states[i].transition_latency); cpufreq_frequency_table_get_attr(data->freq_table, policy->cpu); + + /* + * the first call to ->target() should result in us actually + * writing something to the appropriate registers. + */ + data->resume = 1; + return (result); err_freqfree: