[v1] hwmon: (yogafan) Add support for new Lenovo models

[PATCH] hwmon: (yogafan) Add support for new Lenovo models

Posted by Sergio Melas 2 weeks, 4 days ago

Add DMI quirk entries and map correct ACPI paths and configurations for
additional Lenovo laptop models: Yoga 14cACN 2021, IdeaPad 3 15ALC6 Ub
and Yoga 740-15IML, leveraging DMI product family matching.

Signed-off-by: Sergio Melas <sergiomelas@gmail.com>
---
 drivers/hwmon/yogafan.c | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/drivers/hwmon/yogafan.c b/drivers/hwmon/yogafan.c
index 413ddc721..aa3284560 100644
--- a/drivers/hwmon/yogafan.c
+++ b/drivers/hwmon/yogafan.c
@@ -53,6 +53,11 @@ struct yoga_fan_data {
 };
 
 /* Specific configurations mapped via DMI */
+static const struct yogafan_config yoga_740_15iml_cfg = {
+	.multiplier = 100,
+	.fan_count = 1,
+	.paths = { "\\_SB.PCI0.LPCB.EC0.FANS", NULL }
+};
 
 static const struct yogafan_config yoga_8bit_fans_cfg = {
 	.multiplier = 100,
@@ -200,6 +205,30 @@ static const struct hwmon_chip_info yoga_fan_chip_info = {
 };
 
 static const struct dmi_system_id yogafan_quirks[] = {
+	{
+		.ident = "Lenovo Yoga 740-15IML",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_FAMILY, "Yoga 740-15IML"),
+		},
+		.driver_data = (void *)&yoga_740_15iml_cfg,
+	},
+	{
+		.ident = "Lenovo IdeaPad 3 15ALC6 Ub",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_FAMILY, "IdeaPad 3 15ALC6 Ub"),
+		},
+		.driver_data = (void *)&xiaoxin_8bit_dual_cfg,
+	},
+	{
+		.ident = "Yoga 14cACN 2021",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_FAMILY, "Yoga 14cACN 2021"),
+		},
+		.driver_data = (void *)&yoga_8bit_fans_cfg,
+	},
 	{
 		.ident = "Lenovo LOQ 15IAX9",
 		.matches = {
-- 
2.55.0

Re: [PATCH] hwmon: (yogafan) Add support for new Lenovo models

Posted by Guenter Roeck 2 weeks, 4 days ago

On 9/7/26 04:29, Sergio Melas wrote:
> Add DMI quirk entries and map correct ACPI paths and configurations for
> additional Lenovo laptop models: Yoga 14cACN 2021, IdeaPad 3 15ALC6 Ub
> and Yoga 740-15IML, leveraging DMI product family matching.
> 
> Signed-off-by: Sergio Melas <sergiomelas@gmail.com>
> ---

This should be tagged v2, and change log goes here.

Guenter

>   drivers/hwmon/yogafan.c | 29 +++++++++++++++++++++++++++++
>   1 file changed, 29 insertions(+)
> 
> diff --git a/drivers/hwmon/yogafan.c b/drivers/hwmon/yogafan.c
> index 413ddc721..aa3284560 100644
> --- a/drivers/hwmon/yogafan.c
> +++ b/drivers/hwmon/yogafan.c
> @@ -53,6 +53,11 @@ struct yoga_fan_data {
>   };
>   
>   /* Specific configurations mapped via DMI */
> +static const struct yogafan_config yoga_740_15iml_cfg = {
> +	.multiplier = 100,
> +	.fan_count = 1,
> +	.paths = { "\\_SB.PCI0.LPCB.EC0.FANS", NULL }
> +};
>   
>   static const struct yogafan_config yoga_8bit_fans_cfg = {
>   	.multiplier = 100,
> @@ -200,6 +205,30 @@ static const struct hwmon_chip_info yoga_fan_chip_info = {
>   };
>   
>   static const struct dmi_system_id yogafan_quirks[] = {
> +	{
> +		.ident = "Lenovo Yoga 740-15IML",
> +		.matches = {
> +			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
> +			DMI_MATCH(DMI_PRODUCT_FAMILY, "Yoga 740-15IML"),
> +		},
> +		.driver_data = (void *)&yoga_740_15iml_cfg,
> +	},
> +	{
> +		.ident = "Lenovo IdeaPad 3 15ALC6 Ub",
> +		.matches = {
> +			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
> +			DMI_MATCH(DMI_PRODUCT_FAMILY, "IdeaPad 3 15ALC6 Ub"),
> +		},
> +		.driver_data = (void *)&xiaoxin_8bit_dual_cfg,
> +	},
> +	{
> +		.ident = "Yoga 14cACN 2021",
> +		.matches = {
> +			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
> +			DMI_MATCH(DMI_PRODUCT_FAMILY, "Yoga 14cACN 2021"),
> +		},
> +		.driver_data = (void *)&yoga_8bit_fans_cfg,
> +	},
>   	{
>   		.ident = "Lenovo LOQ 15IAX9",
>   		.matches = {