linux-kernel - Re: [PATCH v8 0/7] add thermal sensor driver for A64, A83T, H3, H5, H6, R40

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Date:   Thu, 6 Feb 2020 17:46:36 +0100
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     Amit Kucheria <amit.kucheria@...durent.com>,
        Vasily Khoruzhick <anarsoul@...il.com>
Cc:     Yangtao Li <tiny.windzz@...il.com>,
        Zhang Rui <rui.zhang@...el.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Maxime Ripard <mripard@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Linux PM list <linux-pm@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        lakml <linux-arm-kernel@...ts.infradead.org>,
        Ondřej Jirman <megous@...ous.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v8 0/7] add thermal sensor driver for A64, A83T, H3, H5,
 H6, R40


Hi Amit,

On 06/02/2020 15:13, Amit Kucheria wrote:
> Hi Vasily,
> 
> For this entire series, the DTS files don't contain any trip points.
> Did I miss some other series?
> 
> At a minimum, you should add some "hot" or "critical" trip points
> since then don't require a cooling-map with throttling actions. If you
> have "passive" trip points, then you need to provide cooling-maps.

Except I'm misunderstanding the bindings, a thermal zone must define
these required properties:

- polling-delay
- polling-delay-passive
- thermal-sensors
- trips
- cooling-maps


> Since this series has been merged, could you please follow up with a
> fixup series to add the trip points?
> 
> Regards,
> Amit
> p.s. We should catch all this automatically, I'll send out yaml
> bindings for the thermal framework soon that should catch this stuff.

+1

There was a small discussion about converting the binding to a schema:

https://www.spinics.net/lists/devicetree/msg332424.html



> On Thu, Dec 19, 2019 at 10:58 PM Vasily Khoruzhick <anarsoul@...il.com> wrote:
>>
>> This patchset adds driver for thermal sensor in A64, A83T, H3, H5,
>> H6 and R40 SoCs.
>>
>> v8:
>>         - [vasily] Address more Maxime's comments for dt-schema
>>         - [vasily] Add myself to MAINTAINERS for the driver and schema
>>         - [vasily] Round calibration data size to word boundary for H6 and A64
>>         - [vasily] Change offset for A64 since it reports too low temp otherwise.
>>                    Likely conversion formula in user manual is not correct.
>>
>> v7:
>>         - [vasily] Address Maxime's comments for dt-schema
>>         - [vasily] Move common part of H3 and H5 dts into sunxi-h3-h5.dtsi
>>         - [vasily] Add Maxime's a-b to the driver patch
>>
>> v6:
>>         - [ondrej, vasily] Squash all driver related changes into a
>>                            single patch
>>         - [ondrej] Rename calib -> calibration
>>         - [ondrej] Fix thermal zone registration check
>>         - [ondrej] Lower rate of sensor data interrupts to 4/sec/sensor
>>         - [ondrej] Rework scale/offset values, H6 calibration
>>         - [ondrej] Explicitly set mod clock to 24 MHz
>>         - [ondrej] Set undocumented bits in CTRL0 for H6
>>         - [ondrej] Add support for A83T
>>         - [ondrej] Add dts changes for A83T, H3, H5, H6
>>         - [vasily] Add dts changes for A64
>>         - [vasily] Address Maxime's comments for YAML scheme
>>         - [vasily] Make .calc_temp callback mandatory
>>         - [vasily] Set .max_register in regmap config, so regs can be
>>                    inspected using debugfs
>>
>> Ondrej Jirman (4):
>>   ARM: dts: sun8i-a83t: Add thermal sensor and thermal zones
>>   ARM: dts: sun8i-h3: Add thermal sensor and thermal zones
>>   arm64: dts: allwinner: h5: Add thermal sensor and thermal zones
>>   arm64: dts: allwinner: h6: Add thermal sensor and thermal zones
>>
>> Vasily Khoruzhick (1):
>>   arm64: dts: allwinner: a64: Add thermal sensors and thermal zones
>>
>> Yangtao Li (2):
>>   thermal: sun8i: add thermal driver for H6/H5/H3/A64/A83T/R40
>>   dt-bindings: thermal: add YAML schema for sun8i-thermal driver
>>     bindings
>>
>>  .../thermal/allwinner,sun8i-a83t-ths.yaml     | 160 +++++
>>  MAINTAINERS                                   |   8 +
>>  arch/arm/boot/dts/sun8i-a83t.dtsi             |  36 +
>>  arch/arm/boot/dts/sun8i-h3.dtsi               |  20 +
>>  arch/arm/boot/dts/sunxi-h3-h5.dtsi            |   6 +
>>  arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi |  42 ++
>>  arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi  |  26 +
>>  arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi  |  33 +
>>  drivers/thermal/Kconfig                       |  14 +
>>  drivers/thermal/Makefile                      |   1 +
>>  drivers/thermal/sun8i_thermal.c               | 639 ++++++++++++++++++
>>  11 files changed, 985 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/thermal/allwinner,sun8i-a83t-ths.yaml
>>  create mode 100644 drivers/thermal/sun8i_thermal.c
>>
>> --
>> 2.24.1
>>


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