linux-kernel - Re: [PATCH 5/5] ACPI / scan: Create platform device for CLSA0100

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Date:   Fri, 14 Jan 2022 18:51:28 +0100
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Takashi Iwai <tiwai@...e.de>, Hans de Goede <hdegoede@...hat.com>
Cc:     Lucas Tanure <tanureal@...nsource.cirrus.com>,
        "Rafael J . Wysocki" <rafael@...nel.org>,
        Len Brown <lenb@...nel.org>, Mark Gross <markgross@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        "moderated list:SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEM..." 
        <alsa-devel@...a-project.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        patches@...nsource.cirrus.com,
        Platform Driver <platform-driver-x86@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 5/5] ACPI / scan: Create platform device for CLSA0100

On Fri, Jan 14, 2022 at 5:19 PM Takashi Iwai <tiwai@...e.de> wrote:
>
> On Thu, 13 Jan 2022 18:07:28 +0100,
> Lucas Tanure wrote:
> >
> > The ACPI device with CLSA0100 is a sound card with
> > multiple instances of CS35L41 connected by I2C to
> > the main CPU.
> >
> > We add an ID to the i2c_multi_instantiate_idsi list
> > to enumerate all I2C slaves correctly.
> >
> > Signed-off-by: Lucas Tanure <tanureal@...nsource.cirrus.com>
>
> I think it's better to merge this from sound git tree together with
> others in the patch set, presumably for rc1.
>
> It'd be great if ACPI people can take a review and give an ack/nack.

Hans, what do you think?

> > ---
> >  drivers/acpi/scan.c                          | 2 ++
> >  drivers/platform/x86/i2c-multi-instantiate.c | 8 ++++++++
> >  2 files changed, 10 insertions(+)
> >
> > diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
> > index c215bc8723d0..2a68031d953e 100644
> > --- a/drivers/acpi/scan.c
> > +++ b/drivers/acpi/scan.c
> > @@ -1753,6 +1753,8 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
> >        */
> >               {"BCM4752", },
> >               {"LNV4752", },
> > +     /* Non-conforming _HID for Cirrus Logic already released */
> > +             {"CLSA0100", },
> >               {}
> >       };
> >
> > diff --git a/drivers/platform/x86/i2c-multi-instantiate.c b/drivers/platform/x86/i2c-multi-instantiate.c
> > index 4956a1df5b90..a51a74933fa9 100644
> > --- a/drivers/platform/x86/i2c-multi-instantiate.c
> > +++ b/drivers/platform/x86/i2c-multi-instantiate.c
> > @@ -147,6 +147,12 @@ static const struct i2c_inst_data int3515_data[]  = {
> >       {}
> >  };
> >
> > +static const struct i2c_inst_data cs35l41_hda[] = {
> > +     { "cs35l41-hda", IRQ_RESOURCE_GPIO, 0 },
> > +     { "cs35l41-hda", IRQ_RESOURCE_GPIO, 0 },
> > +     {}
> > +};
> > +
> >  /*
> >   * Note new device-ids must also be added to i2c_multi_instantiate_ids in
> >   * drivers/acpi/scan.c: acpi_device_enumeration_by_parent().
> > @@ -155,6 +161,8 @@ static const struct acpi_device_id i2c_multi_inst_acpi_ids[] = {
> >       { "BSG1160", (unsigned long)bsg1160_data },
> >       { "BSG2150", (unsigned long)bsg2150_data },
> >       { "INT3515", (unsigned long)int3515_data },
> > +     /* Non-conforming _HID for Cirrus Logic already released */
> > +     { "CLSA0100", (unsigned long)cs35l41_hda },
> >       { }
> >  };
> >  MODULE_DEVICE_TABLE(acpi, i2c_multi_inst_acpi_ids);
> > --
> > 2.34.1
> >