linux-kernel - Re: [PATCH v3 1/3] soundwire: qcom: add runtime pm support

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Message-ID: <e8ac9fab-85af-8f3c-eb68-c2d4d2f7f046@linaro.org>
Date:   Wed, 20 Apr 2022 18:46:43 +0100
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        robh+dt@...nel.org, vkoul@...nel.org,
        yung-chuan.liao@...ux.intel.com
Cc:     devicetree@...r.kernel.org, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org, quic_srivasam@...cinc.com
Subject: Re: [PATCH v3 1/3] soundwire: qcom: add runtime pm support



On 20/04/2022 18:39, Pierre-Louis Bossart wrote:
>> @@ -1197,12 +1224,23 @@ static int qcom_swrm_get_port_config(struct qcom_swrm_ctrl *ctrl)
>>   static int swrm_reg_show(struct seq_file *s_file, void *data)
>>   {
>>   	struct qcom_swrm_ctrl *swrm = s_file->private;
>> -	int reg, reg_val;
>> +	int reg, reg_val, ret;
>> +
>> +	ret = pm_runtime_get_sync(swrm->dev);
>> +	if (ret < 0 && ret != -EACCES) {
>> +		dev_err_ratelimited(swrm->dev,
>> +				    "pm_runtime_get_sync failed in %s, ret %d\n",
>> +				    __func__, ret);
>> +		pm_runtime_put_noidle(swrm->dev);
> ... here it's missing?
> 
> I have a fix ready but thought I would check first if this was intentional

Its not intentional.


> 
> https://github.com/thesofproject/linux/pull/3602/commits/6353eec8dc971c5f0fda0166ae1777f71784ea32

Fix looks good.

--srini
>