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| author | Ryder Lee <ryder.lee@mediatek.com> | 2021-04-24 06:02:06 +0800 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2021-06-19 09:22:45 +0200 |
| commit | 109e505ad944dc207aaa9ee134b0994be09d291d (patch) | |
| tree | 4f67cf58ff0da6ca9fe1699728c30fdb386f4bd5 /drivers/net/wireless/mediatek/mt76/mt7615/init.c | |
| parent | 34b877d972bec8cbf397a57393317672cf92996f (diff) | |
| download | linux-stable-109e505ad944dc207aaa9ee134b0994be09d291d.tar.gz linux-stable-109e505ad944dc207aaa9ee134b0994be09d291d.tar.bz2 linux-stable-109e505ad944dc207aaa9ee134b0994be09d291d.zip | |
mt76: mt7615: add thermal sensor device support
Similar to mt7915, switching to use standard hwmon sysfs.
For reading temperature, cat /sys/class/ieee80211/phy*/hwmon*/temp1_input
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt7615/init.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7615/init.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/init.c b/drivers/net/wireless/mediatek/mt76/mt7615/init.c index ecc3ca9eb658..4aa7877a6383 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/init.c @@ -8,11 +8,61 @@ */ #include <linux/etherdevice.h> +#include <linux/hwmon.h> +#include <linux/hwmon-sysfs.h> #include "mt7615.h" #include "mac.h" #include "mcu.h" #include "eeprom.h" +static ssize_t mt7615_thermal_show_temp(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct mt7615_dev *mdev = dev_get_drvdata(dev); + int temperature; + + if (!mt7615_wait_for_mcu_init(mdev)) + return 0; + + mt7615_mutex_acquire(mdev); + temperature = mt7615_mcu_get_temperature(mdev); + mt7615_mutex_release(mdev); + + if (temperature < 0) + return temperature; + + /* display in millidegree celcius */ + return sprintf(buf, "%u\n", temperature * 1000); +} + +static SENSOR_DEVICE_ATTR(temp1_input, 0444, mt7615_thermal_show_temp, + NULL, 0); + +static struct attribute *mt7615_hwmon_attrs[] = { + &sensor_dev_attr_temp1_input.dev_attr.attr, + NULL, +}; +ATTRIBUTE_GROUPS(mt7615_hwmon); + +int mt7615_thermal_init(struct mt7615_dev *dev) +{ + struct wiphy *wiphy = mt76_hw(dev)->wiphy; + struct device *hwmon; + + if (!IS_REACHABLE(CONFIG_HWMON)) + return 0; + + hwmon = devm_hwmon_device_register_with_groups(&wiphy->dev, + wiphy_name(wiphy), dev, + mt7615_hwmon_groups); + if (IS_ERR(hwmon)) + return PTR_ERR(hwmon); + + return 0; +} +EXPORT_SYMBOL_GPL(mt7615_thermal_init); + static void mt7615_phy_init(struct mt7615_dev *dev) { |