Re: [PATCH V4 7/8] thermal: da9062/61: Thermal junction temperature monitoring driver

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On 14/11/16 08:22, Steve Twiss wrote:
From: Steve Twiss <stwiss.opensource@xxxxxxxxxxx>

Add junction temperature monitoring supervisor device driver, compatible
with the DA9062 and DA9061 PMICs. A MODULE_DEVICE_TABLE() macro is added.

If the PMIC's internal junction temperature rises above TEMP_WARN (125
degC) an interrupt is issued. This TEMP_WARN level is defined as the
THERMAL_TRIP_HOT trip-wire inside the device driver.

The thermal triggering mechanism is interrupt based and happens when the
temperature rises above a given threshold level. The component cannot
return an exact temperature, it only has knowledge if the temperature is
above or below a given threshold value. A status bit must be polled to
detect when the temperature falls below that threshold level again. A
kernel work queue is configured to repeatedly poll and detect when the
temperature falls below this trip-wire, between 1 and 10 second intervals
(defaulting at 3 seconds).

This first level of temperature supervision is intended for non-invasive
temperature control, where the necessary measures for cooling the system
down are left to the host software.

Signed-off-by: Steve Twiss <stwiss.opensource@xxxxxxxxxxx>

Looks good to me.

Reviewed-by: Lukasz Luba <lukasz.luba@xxxxxxx>

Regards,
Lukasz
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