[PATCH v2] hwmon: (asus-ec-sensors) add ROG STRIX X670E-A GAMING WIFI

[Asai Neko via B4 Relay]

From: Asai Neko <sugar@xxxxxxx>

The ROG STRIX X670E-A GAMING WIFI is missing from the driver's DMI
table. Consequently, the board lookup fails with -ENODEV,
asus_ec_sensors does not load, and no asusec hwmon device or EC
temperature readings are available.

The board uses the same EC sensors, access mutex, and AMD 600-series
register layout as the ROG STRIX X670E-E GAMING WIFI. Add its DMI entry
using the existing X670E-E board information and document the board as
supported.

Before the change, there was no asusec device under /sys/class/hwmon and
there were no EC readings. After the change, the driver registered four
sensors with representative readings of 57-61 C for CPU, 68-71 C for
CPU package, 43-44 C for motherboard, and 49-52 C for VRM.

The readings correlated with nct6775 and k10temp. Repeated polling with
both hwmon drivers loaded produced no EC access, bank-switch, concurrent
access, or locking errors.

Tested on an ASUS ROG STRIX X670E-A GAMING WIFI with BIOS 2704.

Signed-off-by: Asai Neko <sugar@xxxxxxx>
---
Add asus-ec-sensors support for the ASUS ROG STRIX X670E-A GAMING WIFI.
Testing details and the rationale are included in the patch commit
message.

Background:
https://github.com/lm-sensors/lm-sensors/issues/474
---
Changes in v2:
- Reuse the existing X670E-E board information instead of duplicating it.
- Link to v1: https://patch.msgid.link/20260830-asus-x670e-a-hwmon-fix-v1-1-cf0a680ccbe2@xxxxxxx

To: Guenter Roeck <linux@xxxxxxxxxxxx>
To: Jonathan Corbet <corbet@xxxxxxx>
To: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
To: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
To: Eugene Shalygin <eugene.shalygin@xxxxxxxxx>
Cc: linux-hwmon@xxxxxxxxxxxxxxx
Cc: linux-doc@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
---
 Documentation/hwmon/asus_ec_sensors.rst | 1 +
 drivers/hwmon/asus-ec-sensors.c         | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/Documentation/hwmon/asus_ec_sensors.rst b/Documentation/hwmon/asus_ec_sensors.rst
index 2c68a343a2ed..ebed9f8d2adb 100644
--- a/Documentation/hwmon/asus_ec_sensors.rst
+++ b/Documentation/hwmon/asus_ec_sensors.rst
@@ -45,6 +45,7 @@ Supported boards:
  * ROG STRIX X570-E GAMING WIFI II
  * ROG STRIX X570-F GAMING
  * ROG STRIX X570-I GAMING
+ * ROG STRIX X670E-A GAMING WIFI
  * ROG STRIX X670E-E GAMING WIFI
  * ROG STRIX X670E-I GAMING WIFI
  * ROG STRIX X870-F GAMING WIFI
diff --git a/drivers/hwmon/asus-ec-sensors.c b/drivers/hwmon/asus-ec-sensors.c
index e43645e884fd..7293c48c72b1 100644
--- a/drivers/hwmon/asus-ec-sensors.c
+++ b/drivers/hwmon/asus-ec-sensors.c
@@ -962,6 +962,8 @@ static const struct dmi_system_id dmi_table[] = {
 					&board_info_strix_x570_f_gaming),
 	DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG STRIX X570-I GAMING",
 					&board_info_strix_x570_i_gaming),
+	DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG STRIX X670E-A GAMING WIFI",
+					&board_info_strix_x670e_e_gaming_wifi),
 	DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG STRIX X670E-E GAMING WIFI",
 					&board_info_strix_x670e_e_gaming_wifi),
 	DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG STRIX X670E-I GAMING WIFI",

---
base-commit: cee9395acd8043be0644b25c34bfa86623f2b935
change-id: 20260830-asus-x670e-a-hwmon-fix-a6546e0e1472

Best regards,
--  
Asai Neko <sugar@xxxxxxx>