Messages in this thread | | | Subject | Re: [PATCH 2/4] ASoC: tlv320aic31xx: Add overflow detection support | From | "Andrew F. Davis" <> | Date | Tue, 4 Sep 2018 09:38:24 -0500 |
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On 09/03/2018 08:03 AM, Mark Brown wrote: > On Fri, Aug 31, 2018 at 01:24:32PM -0500, Andrew F. Davis wrote: >> Similar to short circuit detection, when the ADC/DAC is saturated and >> overflows poor audio quality can result and should be reported to the >> user. This device support Automatic Dynamic Range Compression (DRC) >> to reduce this but it is not enabled currently in this driver. > >> + if (value & AIC31XX_DAC_OF_LEFT) >> + dev_err(dev, "Left-channel DAC overflow has occurred\n"); >> + if (value & AIC31XX_DAC_OF_RIGHT) >> + dev_err(dev, "Right-channel DAC overflow has occurred\n"); > > So, this will sound terrible but I'm not sure that unconditionally > shouting in the logs is the right thing to do here - people do sometimes > put non-audio signals through sound cards (using them as generic DACs > and ADCs) and it seems like it could get very spammy. Perhaps a lower > level warning message, some counters or even some control that allows > the warnings to be masked. >
As these events do not stop the function of the sound card, I agree warnings would be more appropriate than errors, I'll make that change.
Andrew
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