linux-kernel - Re: [alsa-devel] [RFC PATCH 33/40] soundwire: intel: Add basic power management support

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Message-ID: <41f71476-4205-7982-9422-5d00e55c24d3@linux.intel.com>
Date:   Fri, 26 Jul 2019 09:57:06 -0500
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     Cezary Rojewski <cezary.rojewski@...el.com>
Cc:     alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        tiwai@...e.de, broonie@...nel.org, vkoul@...nel.org,
        gregkh@...uxfoundation.org, jank@...ence.com,
        srinivas.kandagatla@...aro.org, slawomir.blauciak@...el.com,
        Sanyog Kale <sanyog.r.kale@...el.com>
Subject: Re: [alsa-devel] [RFC PATCH 33/40] soundwire: intel: Add basic power
 management support



On 7/26/19 5:50 AM, Cezary Rojewski wrote:
> On 2019-07-26 01:40, Pierre-Louis Bossart wrote:
>> +static int intel_resume(struct device *dev)
>> +{
>> +    struct sdw_intel *sdw;
>> +    int ret;
>> +
>> +    sdw = dev_get_drvdata(dev);
>> +
>> +    ret = intel_init(sdw);
>> +    if (ret) {
>> +        dev_err(dev, "%s failed: %d", __func__, ret);
>> +        return ret;
>> +    }
>> +
>> +    sdw_cdns_enable_interrupt(&sdw->cdns);
>> +
>> +    return ret;
>> +}
>> +
>> +#endif
> 
> Suggestion: the local declaration + initialization via dev_get_drvdata() 
> are usually combined.

yes, will do.

> 
> Given the upstream declaration of _enable_interrupt, it does return 
> error code/ success. Given current flow, if function gets to 
> _enable_interrupt call, ret is already set to 0. Returning 
> sdw_cds_enable_interrupt() directly would both simplify the definition 
> and prevent status loss.

sounds good, will do, thanks!