[PATCH v2] hwmon: (yogafan) Add support for new Lenovo models

[Sergio Melas <sergiomelas@gmail.com>]

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>
---
v2: Split changes and addressed reviewer comments.
---
 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