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authorDominik Brodowski <linux@dominikbrodowski.net>2005-05-18 13:49:00 -0400
committerLen Brown <len.brown@intel.com>2005-07-29 18:29:47 -0400
commit4b31e77455b868b43e665edceb111c9a330c8e0f (patch)
tree009012415e7c04e7f864935da286b74d2e1d0f3d
parent45bea1555f5bf0cd5871b208b4b02d188f106861 (diff)
[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 <linux@dominikbrodowski.net> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
-rw-r--r--arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c7
1 files changed, 7 insertions, 0 deletions
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: