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From: Vinod Koul <vinod.koul@intel.com>
To: Cheng-Yi Chiang <cychiang@chromium.org>, Jie Yang <yang.jie@intel.com>
Cc: alsa-devel@alsa-project.org, Liam Girdwood <lgirdwood@gmail.com>,
	linux-kernel@vger.kernel.org, Takashi Iwai <tiwai@suse.com>,
	Mark Brown <broonie@kernel.org>,
	"U . Artie Eoff" <ullysses.a.eoff@intel.com>
Subject: Re: [PATCH v2] ASoC: Intel: Reset hw_ptr on resume trigger
Date: Tue, 1 Aug 2017 09:00:06 +0530	[thread overview]
Message-ID: <20170801033006.GL3053@localhost> (raw)
In-Reply-To: <20170731104734.5776-1-cychiang@chromium.org>

On Mon, Jul 31, 2017 at 06:47:34PM +0800, Cheng-Yi Chiang wrote:
> From: "U. Artie Eoff" <ullysses.a.eoff@intel.com>
> 
> Reset the hw_ptr before queuing the restore_stream_context
> work to eradicate a nasty white audio noise on resume.

Liam, Jie? This on legacy BYT driver..

> 
> Tested-by: Cheng-Yi Chiang <cychiang@chromium.org>
> Signed-off-by: U. Artie Eoff <ullysses.a.eoff@intel.com>
> Signed-off-by: Cheng-Yi Chiang <cychiang@chromium.org>
> ---
>  sound/soc/intel/baytrail/sst-baytrail-pcm.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/sound/soc/intel/baytrail/sst-baytrail-pcm.c b/sound/soc/intel/baytrail/sst-baytrail-pcm.c
> index 4765ad474544..e0db7070cd42 100644
> --- a/sound/soc/intel/baytrail/sst-baytrail-pcm.c
> +++ b/sound/soc/intel/baytrail/sst-baytrail-pcm.c
> @@ -187,8 +187,10 @@ static int sst_byt_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
>  		sst_byt_stream_start(byt, pcm_data->stream, 0);
>  		break;
>  	case SNDRV_PCM_TRIGGER_RESUME:
> -		if (pdata->restore_stream == true)
> +		if (pdata->restore_stream == true) {
> +			pcm_data->hw_ptr = 0;
>  			schedule_work(&pcm_data->work);
> +		}
>  		else
>  			sst_byt_stream_resume(byt, pcm_data->stream);
>  		break;
> -- 
> 2.12.2
> 

-- 
~Vinod

WARNING: multiple messages have this Message-ID (diff)
From: Vinod Koul <vinod.koul@intel.com>
To: Cheng-Yi Chiang <cychiang@chromium.org>, Jie Yang <yang.jie@intel.com>
Cc: linux-kernel@vger.kernel.org, Liam Girdwood <lgirdwood@gmail.com>,
	Mark Brown <broonie@kernel.org>, Jaroslav Kysela <perex@perex.cz>,
	Takashi Iwai <tiwai@suse.com>,
	"U . Artie Eoff" <ullysses.a.eoff@intel.com>,
	alsa-devel@alsa-project.org
Subject: Re: [PATCH v2] ASoC: Intel: Reset hw_ptr on resume trigger
Date: Tue, 1 Aug 2017 09:00:06 +0530	[thread overview]
Message-ID: <20170801033006.GL3053@localhost> (raw)
In-Reply-To: <20170731104734.5776-1-cychiang@chromium.org>

On Mon, Jul 31, 2017 at 06:47:34PM +0800, Cheng-Yi Chiang wrote:
> From: "U. Artie Eoff" <ullysses.a.eoff@intel.com>
> 
> Reset the hw_ptr before queuing the restore_stream_context
> work to eradicate a nasty white audio noise on resume.

Liam, Jie? This on legacy BYT driver..

> 
> Tested-by: Cheng-Yi Chiang <cychiang@chromium.org>
> Signed-off-by: U. Artie Eoff <ullysses.a.eoff@intel.com>
> Signed-off-by: Cheng-Yi Chiang <cychiang@chromium.org>
> ---
>  sound/soc/intel/baytrail/sst-baytrail-pcm.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/sound/soc/intel/baytrail/sst-baytrail-pcm.c b/sound/soc/intel/baytrail/sst-baytrail-pcm.c
> index 4765ad474544..e0db7070cd42 100644
> --- a/sound/soc/intel/baytrail/sst-baytrail-pcm.c
> +++ b/sound/soc/intel/baytrail/sst-baytrail-pcm.c
> @@ -187,8 +187,10 @@ static int sst_byt_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
>  		sst_byt_stream_start(byt, pcm_data->stream, 0);
>  		break;
>  	case SNDRV_PCM_TRIGGER_RESUME:
> -		if (pdata->restore_stream == true)
> +		if (pdata->restore_stream == true) {
> +			pcm_data->hw_ptr = 0;
>  			schedule_work(&pcm_data->work);
> +		}
>  		else
>  			sst_byt_stream_resume(byt, pcm_data->stream);
>  		break;
> -- 
> 2.12.2
> 

-- 
~Vinod

  reply	other threads:[~2017-08-01  3:27 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-31 10:47 [PATCH v2] ASoC: Intel: Reset hw_ptr on resume trigger Cheng-Yi Chiang
2017-08-01  3:30 ` Vinod Koul [this message]
2017-08-01  3:30   ` Vinod Koul
2017-08-01  4:32   ` Eoff, Ullysses A
2017-08-01  4:42     ` Cheng-yi Chiang
2017-08-01  5:04   ` Keyon Jie
2017-08-01  5:04     ` [alsa-devel] " Keyon Jie
2017-08-03 13:47     ` Cheng-yi Chiang
2017-08-03 13:47       ` [alsa-devel] " Cheng-yi Chiang
2017-08-07  6:36       ` Keyon Jie

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