linux-kernel - RE: [EXTERNAL] Re: [PATCH v1] ASoc: tas2781: Add name_prefix as the prefix name of DSP firmwares and calibrated data files

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Date: Mon, 1 Jul 2024 14:00:13 +0000
From: "Ding, Shenghao" <shenghao-ding@...com>
To: Mark Brown <broonie@...nel.org>
CC: "andriy.shevchenko@...ux.intel.com" <andriy.shevchenko@...ux.intel.com>,
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Subject: RE: [EXTERNAL] Re: [PATCH v1] ASoc: tas2781: Add name_prefix as the
 prefix name of DSP firmwares and calibrated data files

Hi Brown
Thanks for your comment.

> -----Original Message-----
> From: Mark Brown <broonie@...nel.org>
> Sent: Monday, July 1, 2024 8:23 PM
> To: Ding, Shenghao <shenghao-ding@...com>
> Cc: andriy.shevchenko@...ux.intel.com; lgirdwood@...il.com;
> perex@...ex.cz; pierre-louis.bossart@...ux.intel.com;
> 13916275206@....com; zhourui@...qin.com; alsa-devel@...a-project.org;
> Salazar, Ivan <i-salazar@...com>; linux-kernel@...r.kernel.org; Chadha,
> Jasjot Singh <j-chadha@...com>; liam.r.girdwood@...el.com; Yue, Jaden
> <jaden-yue@...com>; yung-chuan.liao@...ux.intel.com; Rao, Dipa
> <dipa@...com>; yuhsuan@...gle.com; Lo, Henry <henry.lo@...com>;
> tiwai@...e.de; Xu, Baojun <baojun.xu@...com>; soyer@....hu;
> Baojun.Xu@....com; judyhsiao@...gle.com; Navada Kanyana, Mukund
> <navada@...com>; cujomalainey@...gle.com; Kutty, Aanya
> <aanya@...com>; Mahmud, Nayeem <nayeem.mahmud@...com>;
> savyasanchi.shukla@...radyne.com; flaviopr@...rosoft.com; Ji, Jesse
> <jesse-ji@...com>; darren.ye@...iatek.com
> Subject: [EXTERNAL] Re: [PATCH v1] ASoc: tas2781: Add name_prefix as the
> prefix name of DSP firmwares and calibrated data files
> 
> On Sat, Jun 29, 2024 at 06:11:10PM +0800, Shenghao Ding wrote:
> 
> >  	tas_priv->fw_state = TASDEVICE_RCA_FW_OK;
> > -	scnprintf(tas_priv->coef_binaryname, 64, "%s_coef.bin",
> > -		tas_priv->dev_name);
> > +	if (tas_priv->name_prefix)
> > +		scnprintf(tas_priv->rca_binaryname, 64, "%s-%s_coef.bin",
> > +			tas_priv->name_prefix, tas_priv->dev_name);
> > +	else
> > +		scnprintf(tas_priv->coef_binaryname, 64, "%s_coef.bin",
> > +			tas_priv->dev_name);
> 
> I'll apply this but I do wonder if it's worth falling back to trying to load the
> unprefixed name if we fail to load the prefixed one.
If fail to load dsp firmware, the driver won't load unprefixed name firmware, 
but switch tas2563/tas2781 to bypass-dsp mode automatically.
In this mode, smartamp become simple amp.
These day, I met a case from one of my customers, they put 2 pieces of tas2563, 
and 2 pieces of tas2781 in the same i2c bus. In order to identify tas2563 and 
tas2781, I think name_prefix is a good solution for this case.
Looking forward to your comment. Thanks.