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From: "Mukunda,Vijendar" <vijendar.mukunda@amd.com>
To: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>,
	broonie@kernel.org, alsa-devel@alsa-project.org
Cc: Sunil-kumar.Dommati@amd.com, Liam Girdwood <lgirdwood@gmail.com>,
	open list <linux-kernel@vger.kernel.org>,
	Takashi Iwai <tiwai@suse.com>,
	Alexander.Deucher@amd.com
Subject: Re: [PATCH 10/12] ASoC: amd: add vangogh pci driver pm ops
Date: Tue, 13 Jul 2021 12:06:38 +0530	[thread overview]
Message-ID: <38def9e9-5161-9441-c88a-43b21edfec43@amd.com> (raw)
In-Reply-To: <b754ef05-065d-ee7b-754f-1498f7c6cff6@amd.com>

On 7/8/21 5:11 PM, Mukunda,Vijendar wrote:
> On 7/7/21 10:04 PM, Pierre-Louis Bossart wrote:
>>
>>> +static int snd_acp5x_suspend(struct device *dev)
>>> +{
>>> +	int ret;
>>> +	struct acp5x_dev_data *adata;
>>> +
>>> +	adata = dev_get_drvdata(dev);
>>> +	ret = acp5x_deinit(adata->acp5x_base);
>>> +	if (ret)
>>> +		dev_err(dev, "ACP de-init failed\n");
>>> +	else
>>> +		dev_dbg(dev, "ACP de-initialized\n");
>>> +
>>> +	return ret;
>>> +}
>>> +
>>> +static int snd_acp5x_resume(struct device *dev)
>>> +{
>>> +	int ret;
>>> +	struct acp5x_dev_data *adata;
>>> +
>>> +	adata = dev_get_drvdata(dev);
>>> +	ret = acp5x_init(adata->acp5x_base);
>>> +	if (ret) {
>>> +		dev_err(dev, "ACP init failed\n");
>>> +		return ret;
>>> +	}
>>> +	return 0;
>>> +}
>>> +
>>> +static const struct dev_pm_ops acp5x_pm = {
>>> +	.runtime_suspend = snd_acp5x_suspend,
>>> +	.runtime_resume =  snd_acp5x_resume,
>>> +	.resume =	snd_acp5x_resume,
>>
>> use SET_SYSTEM_SLEEP_PM_OPS and SET_RUNTIME_PM_OPS?
> 
suspend and resume callbacks implementation is same for runtime pm ops
and system level pm ops in ACP PCI driver i.e in suspend callback acp
de-init sequence will be invoked and in resume callback acp init
sequence will be invoked.
As per our understanding if we safeguard code with CONFIG_PM_SLEEP
macro, then runtime pm ops won't work.

Do we need to duplicate the same code as mentioned below?

static const struct dev_pm_ops acp5x_pm = {
        SET_RUNTIME_PM_OPS(snd_acp5x_runtime_suspend,
                           snd_acp5x_runtime_resume, NULL)
        SET_SYSTEM_SLEEP_PM_OPS(snd_acp5x_suspend, snd_acp5x_resume)
};

where snd_acp5x_runtime_suspend() & snd_acp5x_suspend() API
implementation is same. Similarly snd_acp5x_runtime_resume() &
snd_acp5x_resume() implementation is same.
>  We will modify the code.
>>
>> also not clear why you don't have a .suspend here
> It was a miss. we will add .suspend callback which invokes same callback
> "snd_acp5x_suspend".
>>
>> And to avoid warnings use __maybe_unused for those callbacks when PM is disabled?
>>
> Agreed. We will modify the code and post the new version.
>>
> 



  reply	other threads:[~2021-07-13  6:19 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20210707055623.27371-1-vijendar.mukunda@amd.com>
2021-07-07  5:56 ` [PATCH 01/12] ASoC: amd: add Vangogh ACP5x IP register header Vijendar Mukunda
2021-07-07  5:56 ` [PATCH 02/12] ASoC: amd: add Vangogh ACP PCI driver Vijendar Mukunda
2021-07-07 16:17   ` Mark Brown
2021-07-08 14:07     ` Mukunda,Vijendar
2021-07-07  5:56 ` [PATCH 03/12] add acp5x init/de-init functions Vijendar Mukunda
2021-07-07 16:15   ` Pierre-Louis Bossart
2021-07-08 13:30     ` Mukunda,Vijendar
2021-07-07  5:56 ` [PATCH 04/12] ASoC: amd: create acp5x platform devices Vijendar Mukunda
2021-07-07 16:22   ` Mark Brown
2021-07-08 15:02     ` Mukunda,Vijendar
2021-07-07  5:56 ` [PATCH 05/12] ASoC: amd: add ACP5x PCM platform driver Vijendar Mukunda
2021-07-07 16:17   ` Pierre-Louis Bossart
2021-07-08 13:31     ` Mukunda,Vijendar
2021-07-07 16:24   ` Mark Brown
2021-07-08 11:57     ` Mukunda,Vijendar
2021-07-07  5:56 ` [PATCH 06/12] ASoC: amd: irq handler changes for ACP5x PCM dma driver Vijendar Mukunda
2021-07-07 16:20   ` Pierre-Louis Bossart
2021-07-08 13:32     ` Mukunda,Vijendar
2021-07-07  5:56 ` [PATCH 07/12] ASoC: amd: add ACP5x pcm dma driver ops Vijendar Mukunda
2021-07-07 16:27   ` Pierre-Louis Bossart
2021-07-08 11:56     ` Mukunda,Vijendar
2021-07-07 16:30   ` Mark Brown
2021-07-08 11:43     ` Mukunda,Vijendar
2021-07-07  5:56 ` [PATCH 08/12] ASoC: amd: add vangogh i2s controller driver Vijendar Mukunda
2021-07-07  5:56 ` [PATCH 09/12] ASoC: amd: add vangogh i2s dai driver ops Vijendar Mukunda
2021-07-07 16:35   ` Mark Brown
2021-07-08 11:30     ` Mukunda,Vijendar
2021-07-07  5:56 ` [PATCH 10/12] ASoC: amd: add vangogh pci driver pm ops Vijendar Mukunda
2021-07-07 16:34   ` Pierre-Louis Bossart
2021-07-08 11:41     ` Mukunda,Vijendar
2021-07-13  6:36       ` Mukunda,Vijendar [this message]
2021-07-14 16:23         ` Mark Brown
2021-07-15 23:49           ` Mukunda,Vijendar
2021-07-07  5:56 ` [PATCH 11/12] ASoc: amd: add vangogh i2s dma " Vijendar Mukunda
2021-07-07  5:56 ` [PATCH 12/12] ASoC: amd: enable vangogh acp5x driver build Vijendar Mukunda
2021-07-07  9:00   ` kernel test robot
2021-07-08 14:08     ` Mukunda,Vijendar

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