linux-kernel - Re: [PATCH v5 0/3] Thermal ACPI APIs for generic trip points

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Date:   Wed, 18 Jan 2023 11:01:01 -0800
From:   srinivas pandruvada <srinivas.pandruvada@...ux.intel.com>
To:     "Zhang, Rui" <rui.zhang@...el.com>,
        "rafael@...nel.org" <rafael@...nel.org>,
        "daniel.lezcano@...aro.org" <daniel.lezcano@...aro.org>
Cc:     "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "christophe.jaillet@...adoo.fr" <christophe.jaillet@...adoo.fr>,
        "linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>
Subject: Re: [PATCH v5 0/3] Thermal ACPI APIs for generic trip points

On Wed, 2023-01-18 at 13:48 +0000, Zhang, Rui wrote:
> On Wed, 2023-01-18 at 10:53 +0100, Daniel Lezcano wrote:
> > Hi,
> > 
> > On 13/01/2023 19:02, Daniel Lezcano wrote:
> > > Recently sent as a RFC, the thermal ACPI for generic trip points
> > > is
> > > a set of
> > > functions to fill the generic trip points structure which will
> > > become the
> > > standard structure for the thermal framework and its users.
> > > 
> > > Different Intel drivers and the ACPI thermal driver are using the
> > > ACPI tables to
> > > get the thermal zone information. As those are getting the same
> > > information,
> > > providing this set of ACPI function with the generic trip points
> > > will
> > > consolidate the code.
> > > 
> > > Also, the Intel PCH and the Intel 34xx drivers are converted to
> > > use
> > > the generic
> > > trip points relying on the ACPI generic trip point parsing
> > > functions.
> > > 
> > > These changes have been tested on a Thinkpad Lenovo x280 with the
> > > PCH and
> > > INT34xx drivers. No regression have been observed, the trip
> > > points
> > > remain the
> > > same for what is described on this system.
> > 
> > Are we ok with this series ?
> > 
> > Sorry for insisting but I would like to go forward with the generic
> > thermal trip work. There are more patches pending depending on this
> > series.
> 
> The whole series looks good to me.
> 
> Reviwed-by: Zhang Rui <rui.zhang@...el.com>
> 
> But we'd better wait for the thermald test result from Srinvias.

A quick test show that things still work with thermald and these
changes.

Thanks,
Srinivas

> 
> thanks,
> rui
> > 
> > Thanks
> >    -- Daniel
> > 
> > > Changelog:
> > >   - V5:
> > >     - Fixed GTSH unit conversion, deciK -> milli C
> > > 
> > >   - V4:
> > >     - Fixed Kconfig option dependency, select THERMAL_ACPI if
> > > ACPI
> > > is set
> > >       only for the PCH driver
> > > 
> > >   - V3:
> > >     - Took into account Rafael's comments
> > >     - Used a silence option THERMAL_ACPI in order to stay
> > > consistent
> > >       with THERMAL_OF. It is up to the API user to select the
> > > option.
> > > 
> > >   - V2:
> > >     - Fix the thermal ACPI patch where the thermal_acpi.c was not
> > > included in
> > >       the series
> > >     - Provide a couple of users of this API which could have been
> > > tested on a
> > >       real system
> > > 
> > > Daniel Lezcano (3):
> > >    thermal/acpi: Add ACPI trip point routines
> > >    thermal/drivers/intel: Use generic trip points for intel_pch
> > >    thermal/drivers/intel: Use generic trip points int340x
> > > 
> > >   drivers/thermal/Kconfig                       |   4 +
> > >   drivers/thermal/Makefile                      |   1 +
> > >   drivers/thermal/intel/Kconfig                 |   1 +
> > >   drivers/thermal/intel/int340x_thermal/Kconfig |   1 +
> > >   .../int340x_thermal/int340x_thermal_zone.c    | 177 ++++-------
> > > --
> > > --
> > >   .../int340x_thermal/int340x_thermal_zone.h    |  10 +-
> > >   drivers/thermal/intel/intel_pch_thermal.c     |  88 ++------
> > >   drivers/thermal/thermal_acpi.c                | 210
> > > ++++++++++++++++++
> > >   include/linux/thermal.h                       |   8 +
> > >   9 files changed, 286 insertions(+), 214 deletions(-)
> > >   create mode 100644 drivers/thermal/thermal_acpi.c
> > >