CPUFREQ: Enable acpi-cpufreq driver for VIA/Centaur CPUs

The VIA/Centaur C7, C7-M and Nano CPU's all support ACPI based cpu p-states
using a MSR interface.  The Linux driver just never made use of it, since in
addition to the check for the EST flag it also checked if the vendor is Intel.

Signed-off-by: Harald Welte <HaraldWelte@viatech.com>
[ Removed the vendor checks entirely  - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
index 752e8c6..ae9b503 100644 (file)
--- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -90,11 +90,7 @@ static int check_est_cpu(unsigned int cpuid)
 {
        struct cpuinfo_x86 *cpu = &cpu_data(cpuid);
 
-       if (cpu->x86_vendor != X86_VENDOR_INTEL ||
-           !cpu_has(cpu, X86_FEATURE_EST))
-               return 0;
-
-       return 1;
+       return cpu_has(cpu, X86_FEATURE_EST);
 }
 
 static unsigned extract_io(u32 value, struct acpi_cpufreq_data *data)