Re: [PATCH] hwmon: (dell-smm) Add Dell Latitude 7530 to fan control whitelist

From: Pali Rohár

Date: Wed Jun 10 2026 - 14:05:32 EST


On Wednesday 10 June 2026 20:01:41 Armin Wolf wrote:
> A user reported that the Dell Latitude 7530 needs to be whitelisted
> for the special SMM calls necessary for globally enabling/disabling
> BIOS fan control.
>
> Closes: https://github.com/Wer-Wolf/i8kutils/issues/17
> Signed-off-by: Armin Wolf <W_Armin@xxxxxx>

Acked-by: Pali Rohár <pali@xxxxxxxxxx>

> ---
> drivers/hwmon/dell-smm-hwmon.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/drivers/hwmon/dell-smm-hwmon.c b/drivers/hwmon/dell-smm-hwmon.c
> index 038edffc1ac7..9cec0c769e8a 100644
> --- a/drivers/hwmon/dell-smm-hwmon.c
> +++ b/drivers/hwmon/dell-smm-hwmon.c
> @@ -1574,6 +1574,14 @@ static const struct dmi_system_id i8k_whitelist_fan_control[] __initconst = {
> },
> .driver_data = (void *)&i8k_fan_control_data[I8K_FAN_30A3_31A3],
> },
> + {
> + .ident = "Dell Latitude 7530",
> + .matches = {
> + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
> + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Latitude 7530"),
> + },
> + .driver_data = (void *)&i8k_fan_control_data[I8K_FAN_30A3_31A3],
> + },
> {
> .ident = "Dell Latitude E6440",
> .matches = {
> --
> 2.39.5
>