[alsa-devel] [PATCH] ASoC: tlv320aic31xx: suppress error message for EPROBE_DEFER

[Andrew F. Davis]

On 7/19/19 10:36 AM, Lucas Stach wrote:
> Both the supplies and reset GPIO might need a probe deferral for the
> resource to be available. Don't print a error message in that case, as
> it is a normal operating condition.
> 
> Signed-off-by: Lucas Stach <l.stach at pengutronix.de>
> ---
>  sound/soc/codecs/tlv320aic31xx.c | 7 +++++--
>  1 file changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
> index 9b37e98da0db..26a4f6cd3288 100644
> --- a/sound/soc/codecs/tlv320aic31xx.c
> +++ b/sound/soc/codecs/tlv320aic31xx.c
> @@ -1553,7 +1553,8 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c,
>  	aic31xx->gpio_reset = devm_gpiod_get_optional(aic31xx->dev, "reset",
>  						      GPIOD_OUT_LOW);
>  	if (IS_ERR(aic31xx->gpio_reset)) {
> -		dev_err(aic31xx->dev, "not able to acquire gpio\n");
> +		if (PTR_ERR(aic31xx->gpio_reset) != -EPROBE_DEFER)
> +			dev_err(aic31xx->dev, "not able to acquire gpio\n");
>  		return PTR_ERR(aic31xx->gpio_reset);
>  	}
>  
> @@ -1564,7 +1565,9 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c,
>  				      ARRAY_SIZE(aic31xx->supplies),
>  				      aic31xx->supplies);
>  	if (ret) {
> -		dev_err(aic31xx->dev, "Failed to request supplies: %d\n", ret);
> +		if (ret != -EPROBE_DEFER)
> +			dev_err(aic31xx->dev,
> +				"Failed to request supplies: %d\n", ret);


I can't be the only one who thinks this looks much less readable than
just breaking the 80 char line by a little..

All these one-off handlers for probe defer are cluttering the code base,
was there some issue with just yielding for a time in these _get()
functions until the device finally probes?

Anyway that's unrelated to this, for this patch:

Acked-by: Andrew F. Davis <afd at ti.com>


>  		return ret;
>  	}
>  
>