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    SubjectRe: [alsa-devel] [PATCH v7 2/3] ASoC: da7210: Add support for line out and DAC
    On Fri, Oct 21, 2011 at 02:07:40PM +0530, Ashish Chavan wrote:
    > On Thu, 2011-10-20 at 18:10 +0100, Girdwood, Liam wrote:

    > > Any reason for not using DAPM here ? Otherwise they are always on
    > > making your chip burn mW.....

    > Not really. As explained in the comment in DAPM patch, this enables will
    > be effective (burn mW) only after respective IO is taken out from
    > STANDBY mode. DAPM takes care of managing STANDBY mode for all IOs and
    > ADC/DAC. I know this way of handling low power mode is bit non-trivial,
    > but it is what is recommended by chip designers. Actually Mark was also
    > initially confused with this and requested to put enough documentation
    > into code. After that I tried explaining the logic in source code
    > comment in DAPM patch. Let me know if it is not clear and doesn't convey
    > clearly what is should.

    That'd be fine but there's no DAPM code in the patch, only code to
    unconditionally enable on init.

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      Last update: 2011-10-21 11:03    [W:0.020 / U:57.992 seconds]
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