linux-kernel - [PATCH] hwmon: (asus-ec-sensors) add PRIME Z270-A

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Message-ID: <20250903191736.14451-1-eugene.shalygin@gmail.com>
Date: Wed,  3 Sep 2025 21:17:26 +0200
From: Eugene Shalygin <eugene.shalygin@...il.com>
To: eugene.shalygin@...il.com
Cc: Jan Philipp Groß <janphilippgross@...lbox.org>,
	Guenter Roeck <linux@...ck-us.net>,
	Jonathan Corbet <corbet@....net>,
	linux-hwmon@...r.kernel.org,
	linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] hwmon: (asus-ec-sensors) add PRIME Z270-A

Add support for the PRIME Z270-A board.

Tested-by: Jan Philipp Groß <janphilippgross@...lbox.org>
Signed-off-by: Eugene Shalygin <eugene.shalygin@...il.com>
---
 Documentation/hwmon/asus_ec_sensors.rst |  1 +
 drivers/hwmon/asus-ec-sensors.c         | 27 +++++++++++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/Documentation/hwmon/asus_ec_sensors.rst b/Documentation/hwmon/asus_ec_sensors.rst
index e5052159ffa0..baf9eba5957c 100644
--- a/Documentation/hwmon/asus_ec_sensors.rst
+++ b/Documentation/hwmon/asus_ec_sensors.rst
@@ -8,6 +8,7 @@ Supported boards:
  * PRIME X470-PRO
  * PRIME X570-PRO
  * PRIME X670E-PRO WIFI
+ * PRIME Z270-A
  * Pro WS X570-ACE
  * Pro WS WRX90E-SAGE SE
  * ProArt X570-CREATOR WIFI
diff --git a/drivers/hwmon/asus-ec-sensors.c b/drivers/hwmon/asus-ec-sensors.c
index ecb058e8755b..f580ff2e212f 100644
--- a/drivers/hwmon/asus-ec-sensors.c
+++ b/drivers/hwmon/asus-ec-sensors.c
@@ -60,6 +60,8 @@ static char *mutex_path_override;
 
 #define ASUS_HW_ACCESS_MUTEX_SB_PCI0_SBRG_SIO1_MUT0 "\\_SB_.PCI0.SBRG.SIO1.MUT0"
 
+#define ASUS_HW_ACCESS_MUTEX_SB_PCI0_LPCB_SIO1_MUT0 "\\_SB_.PCI0.LPCB.SIO1.MUT0"
+
 #define MAX_IDENTICAL_BOARD_VARIATIONS	3
 
 /* Moniker for the ACPI global lock (':' is not allowed in ASL identifiers) */
@@ -181,6 +183,7 @@ enum board_family {
 	family_amd_600_series,
 	family_amd_800_series,
 	family_amd_wrx_90,
+	family_intel_200_series,
 	family_intel_300_series,
 	family_intel_400_series,
 	family_intel_600_series,
@@ -306,6 +309,18 @@ static const struct ec_sensor_info sensors_family_amd_wrx_90[] = {
 		EC_SENSOR("T_Sensor", hwmon_temp, 1, 0x01, 0x04),
 };
 
+static const struct ec_sensor_info sensors_family_intel_200[] = {
+	[ec_sensor_temp_chipset] =
+		EC_SENSOR("Chipset", hwmon_temp, 1, 0x00, 0x3a),
+	[ec_sensor_temp_cpu] = EC_SENSOR("CPU", hwmon_temp, 1, 0x00, 0x3b),
+	[ec_sensor_temp_mb] =
+		EC_SENSOR("Motherboard", hwmon_temp, 1, 0x00, 0x3c),
+	[ec_sensor_temp_t_sensor] =
+		EC_SENSOR("T_Sensor", hwmon_temp, 1, 0x00, 0x3d),
+	[ec_sensor_fan_cpu_opt] =
+		EC_SENSOR("CPU_Opt", hwmon_fan, 2, 0x00, 0xbc),
+};
+
 static const struct ec_sensor_info sensors_family_intel_300[] = {
 	[ec_sensor_temp_chipset] =
 		EC_SENSOR("Chipset", hwmon_temp, 1, 0x00, 0x3a),
@@ -479,6 +494,13 @@ static const struct ec_board_info board_info_prime_x670e_pro_wifi = {
 	.family = family_amd_600_series,
 };
 
+static const struct ec_board_info board_info_prime_z270_a = {
+	.sensors = SENSOR_SET_TEMP_CHIPSET_CPU_MB |
+		SENSOR_TEMP_T_SENSOR | SENSOR_FAN_CPU_OPT,
+	.mutex_path = ASUS_HW_ACCESS_MUTEX_SB_PCI0_LPCB_SIO1_MUT0,
+	.family = family_intel_200_series,
+};
+
 static const struct ec_board_info board_info_pro_art_b550_creator = {
 	.sensors = SENSOR_SET_TEMP_CHIPSET_CPU_MB |
 		SENSOR_TEMP_T_SENSOR |
@@ -685,6 +707,8 @@ static const struct dmi_system_id dmi_table[] = {
 					&board_info_prime_x570_pro),
 	DMI_EXACT_MATCH_ASUS_BOARD_NAME("PRIME X670E-PRO WIFI",
 					&board_info_prime_x670e_pro_wifi),
+	DMI_EXACT_MATCH_ASUS_BOARD_NAME("PRIME Z270-A",
+					&board_info_prime_z270_a),
 	DMI_EXACT_MATCH_ASUS_BOARD_NAME("ProArt B550-CREATOR",
 					&board_info_pro_art_b550_creator),
 	DMI_EXACT_MATCH_ASUS_BOARD_NAME("ProArt X570-CREATOR WIFI",
@@ -1223,6 +1247,9 @@ static int asus_ec_probe(struct platform_device *pdev)
 	case family_amd_wrx_90:
 		ec_data->sensors_info = sensors_family_amd_wrx_90;
 		break;
+	case family_intel_200_series:
+		ec_data->sensors_info = sensors_family_intel_200;
+		break;
 	case family_intel_300_series:
 		ec_data->sensors_info = sensors_family_intel_300;
 		break;
-- 
2.51.0