Doug / smarc-fsl-linux-kernel

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Commit efa17194581bdfca0986dabc178908bd7c21ba00

Authored by Matthew Garrett
Committed by Rafael J. Wysocki
1 parent 9855d8ce41
Exists in smarc-l5.0.0_1.0.0-ga and in 5 other branches imx_3.10.17_1.0.1_ga, imx_3.10.53_1.1.0_ga, imx_3.14.28_1.0.0_ga, smarc-imx_3.10.53_1.1.0_ga, smarc-imx_3.14.28_1.0.0_ga

cpufreq: Add module aliases for acpi-cpufreq 

The acpi core will call request_module("acpi-cpufreq") on subsystem init,
but this will fail if the module isn't available at that stage of boot.
Add some module aliases to ensure that udev can load the module on Intel
and AMD systems with the appropriate feature bits - I /think/ that this
will also work on VIA systems, but haven't verified that.

References: http://lkml.kernel.org/r/1448223.sdUJnNSRz4@vostro.rjw.lan
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Tested-by: Leonid Isaev <lisaev@umail.iu.edu>
Acked-by: Borislav Petkov <bp@suse.de>
Cc: 3.7+ <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Showing 1 changed file with 7 additions and 0 deletions Side-by-side Diff

drivers/cpufreq/acpi-cpufreq.c
Diff comments   View file @ efa1719
... ... @@ -1030,5 +1030,12 @@
1030 1030 late_initcall(acpi_cpufreq_init);
1031 1031 module_exit(acpi_cpufreq_exit);
1032 1032  
  1033 +static const struct x86_cpu_id acpi_cpufreq_ids[] = {
  1034 + X86_FEATURE_MATCH(X86_FEATURE_ACPI),
  1035 + X86_FEATURE_MATCH(X86_FEATURE_HW_PSTATE),
  1036 + {}
  1037 +};
  1038 +MODULE_DEVICE_TABLE(x86cpu, acpi_cpufreq_ids);
  1039 +
1033 1040 MODULE_ALIAS("acpi");