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

From Lukasz Luba <lukasz.luba@arm.com>
Newsgroups linux.kernel
Subject Re: [PATCH V4 7/8] thermal: da9062/61: Thermal junction temperature monitoring driver
Date 2016-11-15 10:50 +0100
Message-ID <sDIxj-3av-5@gated-at.bofh.it> (permalink)
References <sDkOl-4v8-1@gated-at.bofh.it> <sDkY1-4yt-27@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 14/11/16 08:22, Steve Twiss wrote:
> From: Steve Twiss <stwiss.opensource@diasemi.com>
>
> 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@diasemi.com>
>
Looks good to me.

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

Regards,
Lukasz

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Thread

[PATCH V4 0/8]  da9061: DA9061 driver submission Steve Twiss <stwiss.opensource@diasemi.com> - 2016-11-14 09:30 +0100
  [PATCH V4 2/8] Documentation: devicetree: thermal: da9062/61 TJUNC  temperature binding Steve Twiss <stwiss.opensource@diasemi.com> - 2016-11-14 09:30 +0100
  [PATCH V4 8/8] MAINTAINERS: da9062/61 updates to the Dialog  Semiconductor search terms Steve Twiss <stwiss.opensource@diasemi.com> - 2016-11-14 09:30 +0100
  [PATCH V4 3/8] Documentation: devicetree: mfd: da9062/61 MFD binding Steve Twiss <stwiss.opensource@diasemi.com> - 2016-11-14 09:30 +0100
  [PATCH V4 1/8] Documentation: devicetree: watchdog: da9062/61  watchdog timer binding Steve Twiss <stwiss.opensource@diasemi.com> - 2016-11-14 09:30 +0100
  [PATCH V4 4/8] mfd: da9061: MFD core support Steve Twiss <stwiss.opensource@diasemi.com> - 2016-11-14 09:40 +0100
  [PATCH V4 6/8] watchdog: da9062/61: watchdog driver Steve Twiss <stwiss.opensource@diasemi.com> - 2016-11-14 09:40 +0100
  [PATCH V4 7/8] thermal: da9062/61: Thermal junction temperature  monitoring driver Steve Twiss <stwiss.opensource@diasemi.com> - 2016-11-14 09:40 +0100
    Re: [PATCH V4 7/8] thermal: da9062/61: Thermal junction temperature  monitoring driver Lukasz Luba <lukasz.luba@arm.com> - 2016-11-15 10:50 +0100
  [PATCH V4 5/8] regulator: da9061: BUCK and LDO regulator driver Steve Twiss <stwiss.opensource@diasemi.com> - 2016-11-14 09:40 +0100

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