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    SubjectRe: [ath5k-devel] [PATCH v3] ath5k: disable ASPM
    On Tue, Jul 27, 2010 at 12:17:13AM +0300, Maxim Levitsky wrote:

    > However, it is possible, (and that what I asked you) that some ath5k
    > devices aren't 'pre 1.1 pcie devices' so linux won't disable ASPM L0s
    > for them.
    > So indeed for 'good feeling' it is ok to disable L0s from ath5k
    > explicitly, but most of the time (or always) it will be no-op.
    > In *addition* to that, since you said that ASPM L1 *does* work, and is
    > enabled by BIOS, but linux disables it, that it might be worthy to
    > enable it again from ath5k driver explicitly.
    > As long as wireless works I don't really care if this done or not.

    This may need to be done on a chip by chip basis. Take a look at
    and some of the other inf files on that site to see which devices
    provide the PciASPMOptIn flag - those should support ASPM states even if
    they're pre-1.1 devices.

    Matthew Garrett |

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