linux-kernel - Re: [PATCH 10/11] hda: cs35l41: Add support for CS35L41 in HDA systems

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Date:   Tue, 23 Nov 2021 17:06:30 +0000
From:   <tanureal@...nsource.cirrus.com>
To:     Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        "Rafael J.Wysocki" <rafael@...nel.org>,
        Len Brown <lenb@...nel.org>,
        Hans de Goede <hdegoede@...hat.com>,
        Mark Gross <markgross@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Mark Brown <broonie@...nel.org>, Takashi Iwai <tiwai@...e.com>,
        Kailang Yang <kailang@...ltek.com>,
        Shuming Fan <shumingf@...ltek.com>,
        David Rhodes <david.rhodes@...rus.com>,
        Vitaly Rodionov <vitalyr@...nsource.cirrus.com>,
        Jeremy Szu <jeremy.szu@...onical.com>,
        Hui Wang <hui.wang@...onical.com>,
        Werner Sembach <wse@...edocomputers.com>,
        Chris Chiu <chris.chiu@...onical.com>,
        Cameron Berkenpas <cam@...-zeon.de>,
        Sami Loone <sami@...ne.fi>, Elia Devito <eliadevito@...il.com>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Jack Yu <jack.yu@...ltek.com>, "Arnd Bergmann" <arnd@...db.de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        "Alexandre Belloni" <alexandre.belloni@...tlin.com>,
        <alsa-devel@...a-project.org>, <linux-acpi@...r.kernel.org>,
        <patches@...nsource.cirrus.com>,
        <platform-driver-x86@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 10/11] hda: cs35l41: Add support for CS35L41 in HDA
 systems

On 11/23/21 4:59 PM, Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com> wrote:
> 
> > +#ifdef CONFIG_ACPI
> > +static const struct acpi_device_id cs35l41_acpi_hda_match[] = {
> > +	{"CLSA0100", 0 },
> 
> I could be wrong but this doesn't look like a legit ACPI _HID?
> 
> Cirrus Logic can use 'CIR', "CLI", or 'CSC' PNP ID, or an PCI ID.
> 
> in the past you used
> 
> +#ifdef CONFIG_ACPI
> +static const struct acpi_device_id cs35l41_acpi_match[] = {
> +	{ "CSC3541", 0 }, /* Cirrus Logic PnP ID + part ID */
> +	{},
> +};
> +MODULE_DEVICE_TABLE(acpi, cs35l41_acpi_match);
> +#endif
> 
> 
> 

This ACPI _HID is already released, there is nothing I can do about it.
Future devices will use 'CSC' PnP ID.