From: Viresh Kumar <viresh.kumar@linaro.org>
To: Rob Herring <robh@kernel.org>
Cc: Rajendra Nayak <rnayak@codeaurora.org>,
sboyd@kernel.org, andy.gross@linaro.org, ulf.hansson@linaro.org,
collinsd@codeaurora.org, mka@chromium.org,
devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4 2/6] dt-bindings: power: Add qcom rpm power domain driver bindings
Date: Wed, 4 Jul 2018 11:27:57 +0530 [thread overview]
Message-ID: <20180704055757.4li26b6poxllmh2k@vireshk-i7> (raw)
In-Reply-To: <20180703223554.GA32313@rob-hp-laptop>
On 03-07-18, 16:35, Rob Herring wrote:
> > +qcom,level values specified in the OPP tables for RPMh power domains
> > +should use the RPMH_REGULATOR_LEVEL_* constants from
> > +<dt-bindings/power/qcom-rpmhpd.h>
> > +
> > + rpmhpd: power-controller {
> > + compatible = "qcom,sdm845-rpmhpd";
> > + #power-domain-cells = <1>;
> > + operating-points-v2 = <&rpmhpd_opp_table>;
> > + };
> > +
> > + rpmhpd_opp_table: opp-table {
> > + compatible = "operating-points-v2-qcom-level";
> > +
> > + rpmhpd_opp_ret: opp1 {
> > + qcom,level = <RPMH_REGULATOR_LEVEL_RETENTION>;
> > + };
>
> I don't see the point in using the OPP binding here when you aren't
> using *any* of the properties from it.
Yeah, that's the case for now. But there are cases (as Stephen
mentioned earlier [1]) where the voltage values (and maybe other
values like current, etc) would be known and filled in DT. And that's
why we all agreed to use OPP tables for PM domains as well, as these
are really "operating performance points" of these PM domains.
--
viresh
[1] lkml.kernel.org/r/20180110025454.GG21040@codeaurora.org
next prev parent reply other threads:[~2018-07-04 5:57 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-27 4:52 [PATCH v4 0/6] Add power domain driver for corners on msm8996/sdm845 Rajendra Nayak
2018-06-27 4:52 ` [PATCH v4 1/6] dt-bindings: opp: Introduce qcom-opp bindings Rajendra Nayak
2018-06-27 4:52 ` [PATCH v4 2/6] dt-bindings: power: Add qcom rpm power domain driver bindings Rajendra Nayak
2018-07-03 22:35 ` Rob Herring
2018-07-04 5:57 ` Viresh Kumar [this message]
2018-08-30 6:31 ` Rajendra Nayak
2018-09-20 18:51 ` Rob Herring
2018-09-25 10:25 ` Rajendra Nayak
2018-09-25 19:43 ` Rob Herring
2018-10-04 8:36 ` Viresh Kumar
2018-10-04 15:18 ` Rob Herring
2018-10-04 19:17 ` Niklas Cassel
2018-10-04 22:17 ` Rob Herring
2018-10-05 20:44 ` Niklas Cassel
2018-10-15 12:47 ` [RFC PATCH] dt-bindings: opp: Extend qcom-opp bindings with properties needed for CPR Niklas Cassel
2018-10-22 5:45 ` Viresh Kumar
2018-11-05 23:17 ` Rob Herring
2018-11-09 16:39 ` Niklas Cassel
2018-11-20 4:12 ` Rajendra Nayak
2018-11-20 16:14 ` Niklas Cassel
2018-11-27 5:04 ` Rajendra Nayak
2018-06-27 4:52 ` [PATCH v4 3/6] soc: qcom: rpmpd: Add a Power domain driver to model corners Rajendra Nayak
2018-06-27 4:52 ` [PATCH v4 4/6] soc: qcom: rpmpd: Add support for get/set performance state Rajendra Nayak
2018-06-27 4:52 ` [PATCH v4 5/6] arm64: dts: msm8996: Add rpmpd device node Rajendra Nayak
2018-06-27 4:52 ` [PATCH v4 6/6] soc: qcom: rpmhpd: Add RPMh Power domain driver Rajendra Nayak
2018-08-30 6:35 ` [PATCH v4 0/6] Add power domain driver for corners on msm8996/sdm845 Rajendra Nayak
2018-08-30 8:21 ` Niklas Cassel
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180704055757.4li26b6poxllmh2k@vireshk-i7 \
--to=viresh.kumar@linaro.org \
--cc=andy.gross@linaro.org \
--cc=collinsd@codeaurora.org \
--cc=devicetree@vger.kernel.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mka@chromium.org \
--cc=rnayak@codeaurora.org \
--cc=robh@kernel.org \
--cc=sboyd@kernel.org \
--cc=ulf.hansson@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).