lwn.git - Linux kernel documentation tree maintained by Jonathan Corbet

Age	Commit message (Collapse)	Author
2014-12-23	ath10k: add thermal sensor device support	Rajkumar Manoharan
	Temperature sensor generates electrical analog voltage from temperature of each chain. The analog voltage is converted to digital value through ADC. For reading temperature values fom user space, hw monitoring device is used. Whenever the user requests for current temperature, the driver sends WMI command and wait for response. For reading temperature, cat /sys/class/ieee80211/phy*/device/hwmon/hwmon2/temp1_input Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-12-23	ath10k: add thermal cooling device support	Rajkumar Manoharan
	Thermal cooling device support is added to control the temperature by throttling the data transmission for the given duration. Throttling is done using hw MAC quiet time setting. Period, duration and offset from TBTT can be set up to quiet the MAC transmits for the required duty cycle (% of quiet duration). The thermal device allows user to configure duty cycle. The quiet params are derived as follows. period = max(25TU, beacon interval / number of bss) duration = period * duty cycle / 100 Quiet mode can be disabled by setting the duty cycle to 0. The cooling device can be found under /sys/class/thermal/cooling_deviceX/. Corresponding soft link to this device can be found under phy folder. /sys/class/ieee80211/phy/device/cooling_device. To set duty cycle as 40%, echo 40 >/sys/class/ieee80211/phy/device/cooling_device/cur_state Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>