From: Mark Brown <broonie@kernel.org>
To: Fabio Estevam <festevam@gmail.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>,
alsa-devel@alsa-project.org, b42378@freescale.com,
shawn.guo@linaro.org
Subject: Re: [PATCH] ASoC: wm8962: No need to call wm8962_configure_bclk() multiple times
Date: Fri, 19 Jul 2013 11:07:04 +0100 [thread overview]
Message-ID: <20130719100704.GD9858@sirena.org.uk> (raw)
In-Reply-To: <1374213508-25617-1-git-send-email-festevam@gmail.com>
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On Fri, Jul 19, 2013 at 02:58:28AM -0300, Fabio Estevam wrote:
> From: Fabio Estevam <fabio.estevam@freescale.com>
>
> Currently after playing any audio file, we get the following error message:
>
> $ aplay clarinet.wav
> Playing WAVE 'clarinet.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
> $ wm8962 0-001a: Unsupported sysclk ratio 544
>
> This error message appears about 5 seconds after the audio playback has
> finished.
>
> There is no need to re-calculate the bit clock after the playback has finished,
> so call wm8962_configure_bclk only once inside wm8962_hw_params().
No, you do end up needing to call it in multiple places - there's other
configuration going on there that is needed by bypass paths which won't
use the audio interface and hence won't call hw_params().
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prev parent reply other threads:[~2013-07-19 10:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-19 5:58 [PATCH] ASoC: wm8962: No need to call wm8962_configure_bclk() multiple times Fabio Estevam
2013-07-19 6:00 ` Nicolin Chen
2013-07-19 10:07 ` Mark Brown [this message]
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