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Message-ID: <c0bd4b10-f846-6a6e-06a4-57284f536a98@linux.intel.com>
Date:   Wed, 22 Jun 2022 10:40:29 +0200
From:   Amadeusz Sławiński 
        <amadeuszx.slawinski@...ux.intel.com>
To:     Vitaly Rodionov <vitalyr@...nsource.cirrus.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, Mark Brown <broonie@...nel.org>
Cc:     patches@...nsource.cirrus.com, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org,
        Stefan Binding <sbinding@...nsource.cirrus.com>
Subject: Re: [PATCH v7 05/14] ALSA: hda: cs35l41: Save Subsystem ID inside
 CS35L41 Driver

On 6/22/2022 9:46 AM, Vitaly Rodionov wrote:
> From: Stefan Binding <sbinding@...nsource.cirrus.com>
> 
> The Subsystem ID is read from the HDA driver, and will
> be used by the CS35L41 driver to be able to uniquely
> identify the laptop, which is required to be able to
> define firmware to be used by specific models.
> 
> Signed-off-by: Stefan Binding <sbinding@...nsource.cirrus.com>
> Signed-off-by: Vitaly Rodionov <vitalyr@...nsource.cirrus.com>
> ---
>   sound/pci/hda/cs35l41_hda.c   | 3 +++
>   sound/pci/hda/cs35l41_hda.h   | 1 +
>   sound/pci/hda/hda_component.h | 1 +
>   sound/pci/hda/patch_realtek.c | 1 +
>   4 files changed, 6 insertions(+)
> 
> diff --git a/sound/pci/hda/cs35l41_hda.c b/sound/pci/hda/cs35l41_hda.c
> index 92c6d8b7052e..7f0132694774 100644
> --- a/sound/pci/hda/cs35l41_hda.c
> +++ b/sound/pci/hda/cs35l41_hda.c
> @@ -356,6 +356,9 @@ static int cs35l41_hda_bind(struct device *dev, struct device *master, void *mas
>   		return -EBUSY;
>   
>   	comps->dev = dev;
> +	if (!cs35l41->acpi_subsystem_id)
> +		cs35l41->acpi_subsystem_id = devm_kasprintf(dev, GFP_KERNEL,
> +							    "%.8x", comps->subsystem_id);

Wouldn't comps->codec->core.subsystem_id instead of comps->subsystem_id 
work here? You already added saving of codec in patch 3, and then you 
don't need rest of this patch?

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