[alsa-devel] [RFC][PATCH] ASoC: cs42l73: Fix Output [X|A|V]SP_SCLK Sourcing Mode setting for master mode
brian.austin at cirrus.com
Tue Jan 31 16:53:34 CET 2012
> For master mode, set Output [X|A|V]SP_SCLK Sourcing Mode to MCLK Mode.
> Signed-off-by: Axel Lin <axel.lin at gmail.com>
> Hi Brian,
> I think current code of setting priv->config[id].spc for master mode is wrong:
> priv->config[id].spc &= MCK_SCLK_64FS; will set priv->config[id].spc to be 0.
> I don't have this hardware, I'd appreciate you can review and test this patch.
Thanks for the catch. Yes, for most normal slave operations where sclk =
mclk you would set it the way you have it.
There is however another case where the SCLK = PREMCLK that puts
constraints on the supported rates for the MCLK. Your fix catches the
majority of uses for Codec slave mode though.
Acked-by:Brian Austin <brian.austin at cirrus.com>
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