Re: [PATCH] hwmon: (sch56xx-common) Add DMI override table

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On Sun, Jun 05, 2022 at 12:02:00AM +0200, Armin Wolf wrote:
> Some devices like the Fujitsu Celsius W380 do contain
> a working sch56xx hardware monitoring device, but do
> not contain the necessary DMI onboard device.
> 
> Do not check for the presence of an suitable onboard device
> on these machines. The list of affected machines was created
> using data collected by the Linux Hardware Project.
> 
> Tested on a Fujitsu Esprimo P720, but sadly not on a affected
> machine.
> 
> Fixes: 393935baa45e (hwmon: (sch56xx-common) Add automatic module loading on supported devices)
> Signed-off-by: Armin Wolf <W_Armin@xxxxxx>
> Reviewed-by: Hans de Goede <hdegoede@xxxxxxxxxx>

Applied to hwmon-next.

Thanks,
Guenter

> ---
>  drivers/hwmon/sch56xx-common.c | 44 ++++++++++++++++++++++++++--------
>  1 file changed, 34 insertions(+), 10 deletions(-)
> 
> --
> 2.30.2
> 
> diff --git a/drivers/hwmon/sch56xx-common.c b/drivers/hwmon/sch56xx-common.c
> index 3ece53adabd6..de3a0886c2f7 100644
> --- a/drivers/hwmon/sch56xx-common.c
> +++ b/drivers/hwmon/sch56xx-common.c
> @@ -523,6 +523,28 @@ static int __init sch56xx_device_add(int address, const char *name)
>  	return PTR_ERR_OR_ZERO(sch56xx_pdev);
>  }
> 
> +static const struct dmi_system_id sch56xx_dmi_override_table[] __initconst = {
> +	{
> +		.matches = {
> +			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
> +			DMI_MATCH(DMI_PRODUCT_NAME, "CELSIUS W380"),
> +		},
> +	},
> +	{
> +		.matches = {
> +			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
> +			DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO P710"),
> +		},
> +	},
> +	{
> +		.matches = {
> +			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
> +			DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO E9900"),
> +		},
> +	},
> +	{ }
> +};
> +
>  /* For autoloading only */
>  static const struct dmi_system_id sch56xx_dmi_table[] __initconst = {
>  	{
> @@ -543,16 +565,18 @@ static int __init sch56xx_init(void)
>  		if (!dmi_check_system(sch56xx_dmi_table))
>  			return -ENODEV;
> 
> -		/*
> -		 * Some machines like the Esprimo P720 and Esprimo C700 have
> -		 * onboard devices named " Antiope"/" Theseus" instead of
> -		 * "Antiope"/"Theseus", so we need to check for both.
> -		 */
> -		if (!dmi_find_device(DMI_DEV_TYPE_OTHER, "Antiope", NULL) &&
> -		    !dmi_find_device(DMI_DEV_TYPE_OTHER, " Antiope", NULL) &&
> -		    !dmi_find_device(DMI_DEV_TYPE_OTHER, "Theseus", NULL) &&
> -		    !dmi_find_device(DMI_DEV_TYPE_OTHER, " Theseus", NULL))
> -			return -ENODEV;
> +		if (!dmi_check_system(sch56xx_dmi_override_table)) {
> +			/*
> +			 * Some machines like the Esprimo P720 and Esprimo C700 have
> +			 * onboard devices named " Antiope"/" Theseus" instead of
> +			 * "Antiope"/"Theseus", so we need to check for both.
> +			 */
> +			if (!dmi_find_device(DMI_DEV_TYPE_OTHER, "Antiope", NULL) &&
> +			    !dmi_find_device(DMI_DEV_TYPE_OTHER, " Antiope", NULL) &&
> +			    !dmi_find_device(DMI_DEV_TYPE_OTHER, "Theseus", NULL) &&
> +			    !dmi_find_device(DMI_DEV_TYPE_OTHER, " Theseus", NULL))
> +				return -ENODEV;
> +		}
>  	}
> 
>  	/*



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