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

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Message-ID: <257609dc-8fa9-40e0-8730-29e45af93878@linux.intel.com>
Date:   Mon, 30 Oct 2023 11:08:50 -0500
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     Brady Norander <bradynorander@...il.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 10/28/23 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?

> 
> 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);