linux-kernel - Re: [PATCH] ASoC: Intel: bxt-da7219-max98357a: support MAX98390 speaker amp

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Date:   Tue, 30 Jun 2020 11:26:53 -0500
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     "Lu, Brent" <brent.lu@...el.com>,
        "alsa-devel@...a-project.org" <alsa-devel@...a-project.org>
Cc:     "Rojewski, Cezary" <cezary.rojewski@...el.com>,
        Liam Girdwood <liam.r.girdwood@...ux.intel.com>,
        Jie Yang <yang.jie@...ux.intel.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Kai Vehmanen <kai.vehmanen@...ux.intel.com>,
        Guennadi Liakhovetski <guennadi.liakhovetski@...ux.intel.com>,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
        "M, Naveen" <naveen.m@...el.com>, "Zhi, Yong" <yong.zhi@...el.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Libin Yang <libin.yang@...ux.intel.com>,
        "Chiang, Mac" <mac.chiang@...el.com>,
        Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        Rander Wang <rander.wang@...ux.intel.com>,
        Bard Liao <yung-chuan.liao@...ux.intel.com>,
        "Song, Chao" <chao.song@...el.com>,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Jason Yan <yanaijie@...wei.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ASoC: Intel: bxt-da7219-max98357a: support MAX98390
 speaker amp


>> diff --git a/sound/soc/intel/boards/Kconfig
>> b/sound/soc/intel/boards/Kconfig index 3d820e1..b3b863e 100644
>> --- a/sound/soc/intel/boards/Kconfig
>> +++ b/sound/soc/intel/boards/Kconfig
>> @@ -291,9 +291,17 @@ config
>> SND_SOC_INTEL_DA7219_MAX98357A_GENERIC
>>   	select SND_SOC_DMIC
>>   	select SND_SOC_HDAC_HDMI
>>
>> +config SND_SOC_INTEL_DA7219_MAX98390_GENERIC
>> +	tristate
>> +	select SND_SOC_DA7219
>> +	select SND_SOC_MAX98390
>> +	select SND_SOC_DMIC
>> +	select SND_SOC_HDAC_HDMI
>> +
>>   config SND_SOC_INTEL_BXT_DA7219_MAX98357A_COMMON
>>   	tristate
>>   	select SND_SOC_INTEL_DA7219_MAX98357A_GENERIC
>> +	select SND_SOC_INTEL_DA7219_MAX98390_GENERIC

this doesn't look too good, the only difference is the addition of 
MAX98090 which should be added in SND_SOC_INTEL_DA7219_MAX98357A_GENERIC 
above.

>>
>>   if SND_SOC_INTEL_APL
>>
>> @@ -309,6 +317,18 @@ config
>> SND_SOC_INTEL_BXT_DA7219_MAX98357A_MACH
>>   	   Say Y or m if you have such a device. This is a recommended option.
>>   	   If unsure select "N".
>>
>> +config SND_SOC_INTEL_BXT_DA7219_MAX98390_MACH
>> +	tristate "Broxton with DA7219 and MAX98390 in I2S Mode"
>> +	depends on I2C && ACPI && GPIOLIB
>> +	depends on MFD_INTEL_LPSS || COMPILE_TEST
>> +	depends on SND_HDA_CODEC_HDMI
>> +	select SND_SOC_INTEL_BXT_DA7219_MAX98357A_COMMON
>> +	help
>> +	   This adds support for ASoC machine driver for Broxton-P platforms
>> +	   with DA7219 + MAX98390 I2S audio codec.
>> +	   Say Y or m if you have such a device. This is a recommended option.
>> +	   If unsure select "N".
>> +

i don't think you need a different top-level config, just extend the 
existing one to say MAX98357A or MAX98390.

[...]

>>   	if (soc_intel_is_glk())
>>   		snd_soc_dapm_add_routes(&card->dapm, gemini_map,
>>   					ARRAY_SIZE(gemini_map));
>> @@ -631,17 +719,17 @@ static int bxt_card_late_probe(struct snd_soc_card
>> *card)
>>   		component = pcm->codec_dai->component;
>>   		snprintf(jack_name, sizeof(jack_name),
>>   			"HDMI/DP, pcm=%d Jack", pcm->device);
>> -		err = snd_soc_card_jack_new(card, jack_name,
>> +		ret = snd_soc_card_jack_new(card, jack_name,
>>   					SND_JACK_AVOUT,
>> &broxton_hdmi[i],
>>   					NULL, 0);
>>
>> -		if (err)
>> -			return err;
>> +		if (ret)
>> +			return ret;
>>
>> -		err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device,
>> +		ret = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device,
>>   						&broxton_hdmi[i]);
>> -		if (err < 0)
>> -			return err;
>> +		if (ret < 0)
>> +			return ret;

these look like unrelated changes?


>> --- a/sound/soc/intel/common/soc-acpi-intel-cml-match.c
>> +++ b/sound/soc/intel/common/soc-acpi-intel-cml-match.c
>> @@ -15,8 +15,8 @@ static struct snd_soc_acpi_codecs rt1011_spk_codecs =
>> {  };
>>
>>   static struct snd_soc_acpi_codecs max98357a_spk_codecs = {
>> -	.num_codecs = 1,
>> -	.codecs = {"MX98357A"}
>> +	.num_codecs = 2,
>> +	.codecs = {"MX98357A", "MX98390"}

That looks just wrong?

It would be really odd to list two devices as prerequisites for loading 
a driver, when in practice they are mutually exclusive? Something's 
broken in coreboot if both are present.

see below what we used for JSL:

see static struct snd_soc_acpi_codecs jsl_7219_98373_codecs = {
	.num_codecs = 1,
	.codecs = {"MX98373"}
};

static struct snd_soc_acpi_codecs mx98360a_spk = {
	.num_codecs = 1,
	.codecs = {"MX98360A"}
};