linux-kernel - Re: [PATCH v2 15/19] ASoC: tlv320aic31xx: Reset registers during power up

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Message-ID: <f8b03c59-c7c5-da32-c0fb-de366e931bc9@ti.com>
Date:   Fri, 1 Dec 2017 09:04:41 -0600
From:   "Andrew F. Davis" <afd@...com>
To:     Mark Brown <broonie@...nel.org>
CC:     Liam Girdwood <lgirdwood@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Benoît Cousson <bcousson@...libre.com>,
        Tony Lindgren <tony@...mide.com>,
        <alsa-devel@...a-project.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 15/19] ASoC: tlv320aic31xx: Reset registers during
 power up

On 12/01/2017 07:37 AM, Mark Brown wrote:
> On Wed, Nov 29, 2017 at 03:32:56PM -0600, Andrew F. Davis wrote:
> 
>> +		gpiod_set_value(aic31xx->gpio_reset, 1);
>> +		ndelay(10); /* At least 10ns */
>> +		gpiod_set_value(aic31xx->gpio_reset, 0);
> 
> _cansleep(), this isn't being done from interrupt context.
> 

will fix

>> +	} else {
>> +		ret = regmap_write(aic31xx->regmap, AIC31XX_RESET, 1);
>> +		if (ret < 0)
>> +			dev_err(aic31xx->dev, "Could not reset device\n");
> 
> Print the error to help people doing debug.
> 

Do you mean by adding the ret code to the print?