linux-kernel - Re: [PATCH] ALSA: hda: intel-dsp-config: Fix Huawei Matebook D14 NBLB-WAX9N quirk detection

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Date: Thu, 18 Apr 2024 11:04:53 +0100
From: Mauro Carvalho Chehab <mchehab@...nel.org>
To: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
Cc: linux-kernel@...r.kernel.org, Amadeusz Sławiński
 <amadeuszx.slawinski@...ux.intel.com>, Andy Shevchenko
 <andriy.shevchenko@...ux.intel.com>, Bard Liao
 <yung-chuan.liao@...ux.intel.com>, Brady Norander
 <bradynorander@...il.com>, Jaroslav Kysela <perex@...ex.cz>, Mark Brown
 <broonie@...nel.org>, Mark Hasemeyer <markhas@...omium.org>, Takashi Iwai
 <tiwai@...e.com>, linux-sound@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH] ALSA: hda: intel-dsp-config: Fix Huawei Matebook D14
 NBLB-WAX9N quirk detection

Em Thu, 18 Apr 2024 09:48:27 +0100
Mauro Carvalho Chehab <mchehab@...nel.org> escreveu:

> Newer Matebook D14 model comes with essx8336 and supports SOF,
> but the initial models use the legacy driver, with a Realtek ALC 256
> AC97 chip on it.
> 
> The BIOS seems to be prepared to be used by both models, so
> it contains an entry for ESSX8336 on its DSDT table.
> 
> Add a quirk, as otherwise dspconfig driver will try to load
> SOF, causing audio probe to fail.
> 
> Cc: stable@...r.kernel.org
> Signed-off-by: Mauro Carvalho Chehab <mchehab@...nel.org>

Worth to mention that I opened an issue on Github about that:

https://github.com/thesofproject/linux/issues/4934

I added there the ACPI DSDT table as a reference.


> ---
>  sound/hda/intel-dsp-config.c | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/sound/hda/intel-dsp-config.c b/sound/hda/intel-dsp-config.c
> index 6a384b922e4f..8e728f0585dd 100644
> --- a/sound/hda/intel-dsp-config.c
> +++ b/sound/hda/intel-dsp-config.c
> @@ -46,6 +46,22 @@ static const struct snd_soc_acpi_codecs __maybe_unused essx_83x6 = {
>   * - the first successful match will win
>   */
>  static const struct config_entry config_table[] = {
> +	/* Quirks */
> +	{
> +		.flags = 0,	/* Model uses AC97 with Realtek ALC 256 */
> +		.device = PCI_DEVICE_ID_INTEL_HDA_CML_LP,
> +		.dmi_table = (const struct dmi_system_id []) {
> +			{
> +				.ident = "Huawei NBLB-WAX9N",
> +				.matches = {
> +					DMI_MATCH(DMI_SYS_VENDOR, "HUAWEI"),
> +					DMI_MATCH(DMI_PRODUCT_NAME, "NBLB-WAX9N"),
> +				}
> +			},
> +			{}
> +		}
> +	},
> +
>  /* Merrifield */
>  #if IS_ENABLED(CONFIG_SND_SOC_SOF_MERRIFIELD)
>  	{