linux-kernel - Re: [PATCH] ALSA: hda: intel-dsp-cfg: Use AVS driver on SKL/KBL/APL Chromebooks

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Date:   Mon, 30 Oct 2023 14:16:28 -0400
From:   Brady Norander <bradynorander@...il.com>
To:     Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Takashi Iwai <tiwai@...e.com>, Mark Brown <broonie@...nel.org>,
        alsa-devel@...a-project.org
Cc:     linux-kernel@...r.kernel.org, Jaroslav Kysela <perex@...ex.cz>,
        Bard Liao <yung-chuan.liao@...ux.intel.com>,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
        Amadeusz Sławiński 
        <amadeuszx.slawinski@...ux.intel.com>
Subject: Re: [PATCH] ALSA: hda: intel-dsp-cfg: Use AVS driver on SKL/KBL/APL
 Chromebooks



On 10/30/23 12:08, Pierre-Louis Bossart wrote:
> 
> 
> On 10/28/23 07:25, Brady Norander wrote:
>> The legacy SKL driver no longer works properly on these Chromebook
>> platforms. Use the new AVS driver by default instead.
> 
> shouldn't this be used only if AVS is compiled in?
>
Good point, I'll send a v2.

>>
>> Signed-off-by: Brady Norander <bradynorander@...il.com>
>> ---
>>   sound/hda/intel-dsp-config.c | 16 ++++++++++------
>>   1 file changed, 10 insertions(+), 6 deletions(-)
>>
>> diff --git a/sound/hda/intel-dsp-config.c b/sound/hda/intel-dsp-config.c
>> index 756fa0aa69bb..1045be1fd441 100644
>> --- a/sound/hda/intel-dsp-config.c
>> +++ b/sound/hda/intel-dsp-config.c
>> @@ -16,10 +16,11 @@
>>   static int dsp_driver;
>>   
>>   module_param(dsp_driver, int, 0444);
>> -MODULE_PARM_DESC(dsp_driver, "Force the DSP driver for Intel DSP (0=auto, 1=legacy, 2=SST, 3=SOF)");
>> +MODULE_PARM_DESC(dsp_driver, "Force the DSP driver for Intel DSP (0=auto, 1=legacy, 2=SST, 3=SOF, 4=AVS)");
>>   
>>   #define FLAG_SST			BIT(0)
>>   #define FLAG_SOF			BIT(1)
>> +#define FLAG_AVS			BIT(2)
>>   #define FLAG_SST_ONLY_IF_DMIC		BIT(15)
>>   #define FLAG_SOF_ONLY_IF_DMIC		BIT(16)
>>   #define FLAG_SOF_ONLY_IF_SOUNDWIRE	BIT(17)
>> @@ -56,7 +57,7 @@ static const struct config_entry config_table[] = {
>>   /*
>>    * Apollolake (Broxton-P)
>>    * the legacy HDAudio driver is used except on Up Squared (SOF) and
>> - * Chromebooks (SST), as well as devices based on the ES8336 codec
>> + * Chromebooks (AVS), as well as devices based on the ES8336 codec
>>    */
>>   #if IS_ENABLED(CONFIG_SND_SOC_SOF_APOLLOLAKE)
>>   	{
>> @@ -81,7 +82,7 @@ static const struct config_entry config_table[] = {
>>   #endif
>>   #if IS_ENABLED(CONFIG_SND_SOC_INTEL_APL)
>>   	{
>> -		.flags = FLAG_SST,
>> +		.flags = FLAG_AVS,
>>   		.device = PCI_DEVICE_ID_INTEL_HDA_APL,
>>   		.dmi_table = (const struct dmi_system_id []) {
>>   			{
>> @@ -96,13 +97,13 @@ static const struct config_entry config_table[] = {
>>   #endif
>>   /*
>>    * Skylake and Kabylake use legacy HDAudio driver except for Google
>> - * Chromebooks (SST)
>> + * Chromebooks (AVS)
>>    */
>>   
>>   /* Sunrise Point-LP */
>>   #if IS_ENABLED(CONFIG_SND_SOC_INTEL_SKL)
>>   	{
>> -		.flags = FLAG_SST,
>> +		.flags = FLAG_AVS,
>>   		.device = PCI_DEVICE_ID_INTEL_HDA_SKL_LP,
>>   		.dmi_table = (const struct dmi_system_id []) {
>>   			{
>> @@ -122,7 +123,7 @@ static const struct config_entry config_table[] = {
>>   /* Kabylake-LP */
>>   #if IS_ENABLED(CONFIG_SND_SOC_INTEL_KBL)
>>   	{
>> -		.flags = FLAG_SST,
>> +		.flags = FLAG_AVS,
>>   		.device = PCI_DEVICE_ID_INTEL_HDA_KBL_LP,
>>   		.dmi_table = (const struct dmi_system_id []) {
>>   			{
>> @@ -667,6 +668,9 @@ int snd_intel_dsp_driver_probe(struct pci_dev *pci)
>>   		}
>>   	}
>>   
>> +	if (cfg->flags & FLAG_AVS)
>> +		return SND_INTEL_DSP_DRIVER_AVS;
>> +
>>   	return SND_INTEL_DSP_DRIVER_LEGACY;
>>   }
>>   EXPORT_SYMBOL_GPL(snd_intel_dsp_driver_probe);