linux-kernel - Re: [PATCH 11/11] ACPI / scan: Create platform device for CLSA0100 ACPI nodes

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Date:   Tue, 23 Nov 2021 18:05:39 +0100
From:   Hans de Goede <hdegoede@...hat.com>
To:     Lucas Tanure <tanureal@...nsource.cirrus.com>,
        "Rafael J . Wysocki" <rafael@...nel.org>,
        Len Brown <lenb@...nel.org>, 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>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        David Rhodes <david.rhodes@...rus.com>,
        Vitaly Rodionov <vitalyr@...nsource.cirrus.com>
Cc:     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 11/11] ACPI / scan: Create platform device for CLSA0100
 ACPI nodes

Hi Lucas,

On 11/23/21 17:31, Lucas Tanure wrote:
> The ACPI device with CLSA0100 is a sound card with multiple
> instances of CS35L41.
> 
> We add an ID to the I2C multi instantiate list to enumerate
> all I2C slaves correctly.
> 
> Signed-off-by: Lucas Tanure <tanureal@...nsource.cirrus.com>
> ---
>  drivers/acpi/scan.c                          | 1 +
>  drivers/platform/x86/i2c-multi-instantiate.c | 7 +++++++
>  2 files changed, 8 insertions(+)
> 
> diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
> index 2c80765670bc..16827a33e93b 100644
> --- a/drivers/acpi/scan.c
> +++ b/drivers/acpi/scan.c
> @@ -1708,6 +1708,7 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
>  		{"BSG2150", },
>  		{"INT33FE", },
>  		{"INT3515", },
> +		{"CLSA0100", },
>  		{}
>  	};
>  
> diff --git a/drivers/platform/x86/i2c-multi-instantiate.c b/drivers/platform/x86/i2c-multi-instantiate.c
> index 4956a1df5b90..ed25a0adc656 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 clsa0100_data[]  = {
> +	{ "cs35l41-hda", IRQ_RESOURCE_GPIO, 0 },
> +	{ "cs35l41-hda", IRQ_RESOURCE_GPIO, 0 },

This suggests that both amplifiers are using the same GPIO pin as shared
IRQ, is that correct ? Can you share an acpidump of the laptop's DSDT tables ?

Regards,

Hans




> +	{}
> +};
> +
>  /*
>   * 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 +161,7 @@ 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 },
> +	{ "CLSA0100", (unsigned long)clsa0100_data },
>  	{ }
>  };
>  MODULE_DEVICE_TABLE(acpi, i2c_multi_inst_acpi_ids);
>