1. 12 10月, 2007 36 次提交
  2. 09 10月, 2007 3 次提交
  3. 08 10月, 2007 1 次提交
    • R
      Longhaul: add auto enabled "revid_errata" option · 52a2638b
      Rafal Bilski 提交于
      VIA C3 Ezra-T has RevisionID equal to 1, but it needs RevisionKey to be 0
      or CPU will ignore new frequency and will continue to work at old
      frequency.  New "revid_errata" option will force RevisionKey to be set to
      0, whatever RevisionID is.
      
      Additionaly "Longhaul" will not silently ignore unsuccessful transition.
      It will try to check if "revid_errata" or "disable_acpi_c3" options need to
      be enabled for this processor/system.
      
      Same for Longhaul ver.  2 support.  It will be disabled if none of above
      options will work.
      
       Best case scenario (with patch apllied and v2 enabled):
       longhaul: VIA C3 'Ezra' [C5C] CPU detected.  Longhaul v2 supported.
       longhaul: Using northbridge support.
       longhaul: VRM 8.5
       longhaul: Max VID=1.350  Min VID=1.050, 13 possible voltage scales
       longhaul: f: 300000 kHz, index: 0, vid: 1050 mV
       [...]
       longhaul: Voltage scaling enabled.
       Worst case scenario:
       longhaul: VIA C3 'Ezra-T' [C5M] CPU detected.  Powersaver supported.
       longhaul: Using northbridge support.
       longhaul: Using ACPI support.
       longhaul: VRM 8.5
       longhaul: Claims to support voltage scaling but min & max are both 1.250. Voltage scaling disabled
       longhaul: Failed to set requested frequency!
       longhaul: Enabling "Ignore Revision ID" option.
       longhaul: Failed to set requested frequency!
       longhaul: Disabling ACPI C3 support.
       longhaul: Disabling "Ignore Revision ID" option.
       longhaul: Failed to set requested frequency!
       longhaul: Enabling "Ignore Revision ID" option.
      
      [akpm@linux-foundation.org: coding-style cleanups]
      Signed-off-by: NRafal Bilski <rafalbilski@interia.pl>
      Signed-off-by: NDave Jones <davej@redhat.com>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      52a2638b