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

From: Guenter Roeck
Date: Sun Jun 05 2022 - 13:42:39 EST


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;
> + }
> }
>
> /*