linux-kernel - [PATCH v2 5/6] hwmon: (aquacomputer_d5next) Add temperature offset control for Aquaero

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Date:   Tue, 14 Feb 2023 23:02:20 +0100
From:   Leonard Anderweit <leonard.anderweit@...il.com>
To:     linux-hwmon@...r.kernel.org
Cc:     Aleksa Savic <savicaleksa83@...il.com>,
        Jack Doan <me@...kdoan.com>, Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Jonathan Corbet <corbet@....net>, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Leonard Anderweit <leonard.anderweit@...il.com>
Subject: [PATCH v2 5/6] hwmon: (aquacomputer_d5next) Add temperature offset control for Aquaero

Adds control over the Aquacomputer Aquaero temperature offset for all eight
temperature sensors.

Signed-off-by: Leonard Anderweit <leonard.anderweit@...il.com>
---
 Documentation/hwmon/aquacomputer_d5next.rst |  4 ++--
 drivers/hwmon/aquacomputer_d5next.c         | 12 ++++++++----
 2 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/Documentation/hwmon/aquacomputer_d5next.rst b/Documentation/hwmon/aquacomputer_d5next.rst
index 7d0d015b1a52..618c826093a2 100644
--- a/Documentation/hwmon/aquacomputer_d5next.rst
+++ b/Documentation/hwmon/aquacomputer_d5next.rst
@@ -25,7 +25,7 @@ communicate through proprietary USB HID protocols.
 
 The Aquaero devices expose eight physical, eight virtual and four calculated
 virtual temperature sensors, as well as two flow sensors. The fans expose their
-speed (in RPM), power, voltage and current.
+speed (in RPM), power, voltage and current. Temperature offsets can be controlled.
 
 For the D5 Next pump, available sensors are pump and fan speed, power, voltage
 and current, as well as coolant temperature and eight virtual temp sensors. Also
@@ -75,7 +75,7 @@ Sysfs entries
 
 ================ ==============================================================
 temp[1-20]_input Physical/virtual temperature sensors (in millidegrees Celsius)
-temp[1-4]_offset Temperature sensor correction offset (in millidegrees Celsius)
+temp[1-8]_offset Temperature sensor correction offset (in millidegrees Celsius)
 fan[1-8]_input   Pump/fan speed (in RPM) / Flow speed (in dL/h)
 fan5_pulses      Quadro flow sensor pulses
 power[1-8]_input Pump/fan power (in micro Watts)
diff --git a/drivers/hwmon/aquacomputer_d5next.c b/drivers/hwmon/aquacomputer_d5next.c
index eb185318098a..61c1ffcd8f3b 100644
--- a/drivers/hwmon/aquacomputer_d5next.c
+++ b/drivers/hwmon/aquacomputer_d5next.c
@@ -116,6 +116,9 @@ static u8 aquaero_secondary_ctrl_report[] = {
 #define AQUAERO_FAN_SPEED_OFFSET		0x00
 static u16 aquaero_sensor_fan_offsets[] = { 0x167, 0x173, 0x17f, 0x18B };
 
+/* Control report offsets for the Aquaero fan controllers */
+#define AQUAERO_TEMP_CTRL_OFFSET	0xdb
+
 /* Specs of the D5 Next pump */
 #define D5NEXT_NUM_FANS			2
 #define D5NEXT_NUM_SENSORS		1
@@ -988,10 +991,10 @@ static const struct hwmon_channel_info *aqc_info[] = {
 			   HWMON_T_INPUT | HWMON_T_LABEL | HWMON_T_OFFSET,
 			   HWMON_T_INPUT | HWMON_T_LABEL | HWMON_T_OFFSET,
 			   HWMON_T_INPUT | HWMON_T_LABEL | HWMON_T_OFFSET,
-			   HWMON_T_INPUT | HWMON_T_LABEL,
-			   HWMON_T_INPUT | HWMON_T_LABEL,
-			   HWMON_T_INPUT | HWMON_T_LABEL,
-			   HWMON_T_INPUT | HWMON_T_LABEL,
+			   HWMON_T_INPUT | HWMON_T_LABEL | HWMON_T_OFFSET,
+			   HWMON_T_INPUT | HWMON_T_LABEL | HWMON_T_OFFSET,
+			   HWMON_T_INPUT | HWMON_T_LABEL | HWMON_T_OFFSET,
+			   HWMON_T_INPUT | HWMON_T_LABEL | HWMON_T_OFFSET,
 			   HWMON_T_INPUT | HWMON_T_LABEL,
 			   HWMON_T_INPUT | HWMON_T_LABEL,
 			   HWMON_T_INPUT | HWMON_T_LABEL,
@@ -1295,6 +1298,7 @@ static int aqc_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		priv->flow_sensors_start_offset = AQUAERO_FLOW_SENSORS_START;
 
 		priv->buffer_size = AQUAERO_CTRL_REPORT_SIZE;
+		priv->temp_ctrl_offset = AQUAERO_TEMP_CTRL_OFFSET;
 
 		priv->temp_label = label_temp_sensors;
 		priv->virtual_temp_label = label_virtual_temp_sensors;
-- 
2.39.1