linux-kernel - Re: [PATCH] ACPI: x86: utils: Remove Lenovo Yoga Tablet 2's MAGN0001

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Message-ID: <5ff4416c-a195-7ac7-9eb1-16d667fd3ad6@redhat.com>
Date:   Sat, 22 Apr 2023 19:29:43 +0200
From:   Hans de Goede <hdegoede@...hat.com>
To:     Marius Hoch <mail@...iushoch.de>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Len Brown <lenb@...nel.org>, linux-acpi@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ACPI: x86: utils: Remove Lenovo Yoga Tablet 2's MAGN0001

Hi,

On 4/22/23 18:44, Marius Hoch wrote:
> The LSM303D on the Lenovo Yoga Tablet 2 series is present
> as both ACCL0001 and MAGN0001. As we can only ever register an
> i2c client for one of them, ignore MAGN0001.
> 
> Currently this errors:
> i2c i2c-4: Failed to register i2c client MAGN0001:00 at 0x1d (-16)
> 
> Tested on a Lenovo Yoga Tablet 2 1051-F.
> 
> Signed-off-by: Marius Hoch <mail@...iushoch.de>

Thanks, patch looks good to me:

Reviewed-by: Hans de Goede <hdegoede@...hat.com>

Regards,

Hans


> ---
>  drivers/acpi/x86/utils.c | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/drivers/acpi/x86/utils.c b/drivers/acpi/x86/utils.c
> index ba420a28a4aa..9c2d6f35f88a 100644
> --- a/drivers/acpi/x86/utils.c
> +++ b/drivers/acpi/x86/utils.c
> @@ -143,6 +143,16 @@ static const struct override_status_id override_status_ids[] = {
>  		DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
>  		DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
>  	      }),
> +
> +	/*
> +	 * The LSM303D on the Lenovo Yoga Tablet 2 series is present
> +	 * as both ACCL0001 and MAGN0001. As we can only ever register an
> +	 * i2c client for one of them, ignore MAGN0001.
> +	 */
> +	NOT_PRESENT_ENTRY_HID("MAGN0001", "1", ATOM_SILVERMONT, {
> +		DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
> +		DMI_MATCH(DMI_PRODUCT_FAMILY, "YOGATablet2"),
> +	      }),
>  };
>  
>  bool acpi_device_override_status(struct acpi_device *adev, unsigned long long *status)