[PATCH 4/4] hwmon: (asus-ec-sensors) add PRIME X470-PRO board

[Eugene Shalygin <eugene.shalygin@gmail.com>]

This board is supposed to be handled by the asus-wmi-sensors driver,
but due to a buggy WMI implementation the driver and the official ASUS
software make the BIOS hang together with fan controls.

This driver complements values provided by the SIO chip and does not
freeze the BIOS, as tested by a user [2].

[1] https://github.com/electrified/asus-wmi-sensors/blob/master/README.md
[2] https://github.com/zeule/asus-ec-sensors/issues/12

Signed-off-by: Eugene Shalygin <eugene.shalygin@gmail.com>
---
 drivers/hwmon/asus-ec-sensors.c | 44 +++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/drivers/hwmon/asus-ec-sensors.c b/drivers/hwmon/asus-ec-sensors.c
index b4060ed1f0fa..ce0e1d97b60b 100644
--- a/drivers/hwmon/asus-ec-sensors.c
+++ b/drivers/hwmon/asus-ec-sensors.c
@@ -136,10 +136,41 @@ enum ec_sensors {
 #define SENSOR_TEMP_WATER_OUT BIT(ec_sensor_temp_water_out)
 
 enum board_family {
+	family_amd_400_series,
 	family_amd_500_series,
 };
 
 /* All the known sensors for ASUS EC controllers */
+static const struct ec_sensor_info sensors_family_amd_400[] = {
+	[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_temp_vrm] =
+		EC_SENSOR("VRM", hwmon_temp, 1, 0x00, 0x3e),
+	[ec_sensor_in_cpu_core] =
+		EC_SENSOR("CPU Core", hwmon_in, 2, 0x00, 0xa2),
+	[ec_sensor_fan_cpu_opt] =
+		EC_SENSOR("CPU_Opt", hwmon_fan, 2, 0x00, 0xbc),
+	[ec_sensor_fan_vrm_hs] =
+		EC_SENSOR("VRM HS", hwmon_fan, 2, 0x00, 0xb2),
+	[ec_sensor_fan_chipset] =
+		/* no chipset fans in this generation */
+		EC_SENSOR("Chipset", hwmon_fan, 0, 0x00, 0x00),
+	[ec_sensor_fan_water_flow] =
+		EC_SENSOR("Water_Flow", hwmon_fan, 2, 0x00, 0xb4),
+	[ec_sensor_curr_cpu] =
+		EC_SENSOR("CPU", hwmon_curr, 1, 0x00, 0xf4),
+	[ec_sensor_temp_water_in] =
+		EC_SENSOR("Water_In", hwmon_temp, 1, 0x01, 0x0d),
+	[ec_sensor_temp_water_out] =
+		EC_SENSOR("Water_Out", hwmon_temp, 1, 0x01, 0x0b),
+};
+
 static const struct ec_sensor_info sensors_family_amd_500[] = {
 	[ec_sensor_temp_chipset] =
 		EC_SENSOR("Chipset", hwmon_temp, 1, 0x00, 0x3a),
@@ -185,6 +216,15 @@ struct ec_board_info {
 };
 
 static const struct ec_board_info board_info[] __initconst = {
+	{
+		.board_names = {"PRIME X470-PRO"},
+		.sensors = SENSOR_SET_TEMP_CHIPSET_CPU_MB |
+			SENSOR_TEMP_T_SENSOR | SENSOR_TEMP_VRM |
+			SENSOR_FAN_CPU_OPT |
+			SENSOR_CURR_CPU | SENSOR_IN_CPU_CORE,
+		.mutex_path = ACPI_GLOBAL_LOCK_PSEUDO_PATH,
+		.family = family_amd_400_series,
+	},
 	{
 		.board_names = {"PRIME X570-PRO"},
 		.sensors = SENSOR_SET_TEMP_CHIPSET_CPU_MB | SENSOR_TEMP_VRM |
@@ -762,7 +802,11 @@ static int __init asus_ec_probe(struct platform_device *pdev)
 
 	dev_set_drvdata(dev, ec_data);
 	ec_data->board_info = *pboard_info;
+
 	switch (ec_data->board_info.family) {
+	case family_amd_400_series:
+		ec_data->sensors_info = sensors_family_amd_400;
+		break;
 	case family_amd_500_series:
 		ec_data->sensors_info = sensors_family_amd_500;
 		break;
-- 
2.35.1