From: Amit Kucheria <amit.kucheria@verdurent.com>
To: Thara Gopinath <thara.gopinath@linaro.org>
Cc: Eduardo Valentin <edubezval@gmail.com>,
Zhang Rui <rui.zhang@intel.com>,
Ulf Hansson <ulf.hansson@linaro.org>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Andy Gross <agross@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Linux PM list <linux-pm@vger.kernel.org>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@vger.kernel.org>,
linux-arm-msm <linux-arm-msm@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v3 3/7] thermal: core: Add late init hook to cooling device ops
Date: Tue, 3 Dec 2019 22:41:24 +0530 [thread overview]
Message-ID: <CAHLCerMq=jGmpvw9XCfkj8z=m+5--E8Ku4-GxYAcDbSm9-ZoTQ@mail.gmail.com> (raw)
In-Reply-To: <CAHLCerOCt9VBizAHu+y+CmzFmz-ktqCJgcB_NeC3WC4W9YBvAQ@mail.gmail.com>
On Tue, Dec 3, 2019 at 10:34 PM Amit Kucheria
<amit.kucheria@verdurent.com> wrote:
>
> On Thu, Oct 17, 2019 at 1:07 AM Thara Gopinath
> <thara.gopinath@linaro.org> wrote:
> >
> > Add a hook in thermal_cooling_device_ops to be called after
> > the cooling device has been initialized and registered
> > but before binding it to a thermal zone.
> >
> > In this patch series it is used to hook up a power domain
> > to the device pointer of cooling device.
> >
> > It can be used for any other relevant late initializations
> > of a cooling device as well.
>
> Please describe WHY this hook is needed.
Just noticed you dropped this for v4. Nevermind.
> > Signed-off-by: Thara Gopinath <thara.gopinath@linaro.org>
> > ---
> > drivers/thermal/thermal_core.c | 13 +++++++++++++
> > include/linux/thermal.h | 1 +
> > 2 files changed, 14 insertions(+)
> >
> > diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
> > index 886e8fa..c2ecb73 100644
> > --- a/drivers/thermal/thermal_core.c
> > +++ b/drivers/thermal/thermal_core.c
> > @@ -994,6 +994,19 @@ __thermal_cooling_device_register(struct device_node *np,
> > list_add(&cdev->node, &thermal_cdev_list);
> > mutex_unlock(&thermal_list_lock);
> >
> > + /* Call into cdev late initialization if defined */
> > + if (cdev->ops->late_init) {
> > + result = cdev->ops->late_init(cdev);
> > + if (result) {
> > + ida_simple_remove(&thermal_cdev_ida, cdev->id);
> > + put_device(&cdev->device);
> > + mutex_lock(&thermal_list_lock);
> > + list_del(&cdev->node);
> > + mutex_unlock(&thermal_list_lock);
> > + return ERR_PTR(result);
> > + }
> > + }
> > +
> > /* Update binding information for 'this' new cdev */
> > bind_cdev(cdev);
> >
> > diff --git a/include/linux/thermal.h b/include/linux/thermal.h
> > index e45659c..e94b3de 100644
> > --- a/include/linux/thermal.h
> > +++ b/include/linux/thermal.h
> > @@ -125,6 +125,7 @@ struct thermal_cooling_device_ops {
> > struct thermal_zone_device *, unsigned long, u32 *);
> > int (*power2state)(struct thermal_cooling_device *,
> > struct thermal_zone_device *, u32, unsigned long *);
> > + int (*late_init)(struct thermal_cooling_device *);
> > };
> >
> > struct thermal_cooling_device {
> > --
> > 2.1.4
> >
next prev parent reply other threads:[~2019-12-03 17:11 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-16 19:37 [PATCH v3 0/7]Introduce Power domain based warming device driver Thara Gopinath
2019-10-16 19:37 ` [PATCH v3 1/7] PM/Domains: Add support for retrieving genpd performance states information Thara Gopinath
2019-10-17 8:49 ` Ulf Hansson
2019-10-17 16:11 ` Thara Gopinath
2019-10-16 19:37 ` [PATCH v3 2/7] soc: qcom: rpmhpd: Introduce function to retrieve power domain performance state count Thara Gopinath
2019-10-16 19:37 ` [PATCH v3 3/7] thermal: core: Add late init hook to cooling device ops Thara Gopinath
2019-12-03 17:04 ` Amit Kucheria
2019-12-03 17:09 ` Thara Gopinath
2019-12-03 17:11 ` Amit Kucheria [this message]
2019-10-16 19:37 ` [PATCH v3 4/7] thermal: Add generic power domain warming device driver Thara Gopinath
2019-10-17 8:47 ` Ulf Hansson
2019-10-17 15:46 ` Thara Gopinath
2019-10-16 19:37 ` [PATCH v3 5/7] soc: qcom: Extend RPMh power controller driver to register warming devices Thara Gopinath
2019-10-16 19:37 ` [PATCH v3 6/7] dt-bindings: soc: qcom: Extend RPMh power controller binding to describe thermal warming device Thara Gopinath
2019-10-17 9:04 ` Ulf Hansson
2019-10-17 15:28 ` Thara Gopinath
2019-10-17 15:43 ` Ulf Hansson
2019-10-17 16:10 ` Thara Gopinath
2019-10-29 1:36 ` Rob Herring
2019-10-29 10:06 ` Ulf Hansson
2019-10-29 20:16 ` Rob Herring
2019-10-30 9:27 ` Ulf Hansson
2019-10-30 14:27 ` Thara Gopinath
2019-10-16 19:37 ` [PATCH v3 7/7] arm64: dts: qcom: Add mx power domain as " Thara Gopinath
2019-10-29 1:31 ` Rob Herring
2019-10-30 14:23 ` Thara Gopinath
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