linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Niklas Cassel <niklas.cassel@linaro.org>
To: Andy Gross <andy.gross@linaro.org>,
	David Brown <david.brown@linaro.org>,
	Viresh Kumar <vireshk@kernel.org>, Nishanth Menon <nm@ti.com>,
	Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-msm@vger.kernel.org, jorge.ramirez-ortiz@linaro.org,
	Niklas Cassel <niklas.cassel@linaro.org>,
	linux-pm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [RFC PATCH 6/9] dt-bindings: opp: Add qcom-opp bindings with properties needed for CPR
Date: Thu,  4 Apr 2019 07:09:27 +0200	[thread overview]
Message-ID: <20190404050931.9812-7-niklas.cassel@linaro.org> (raw)
In-Reply-To: <20190404050931.9812-1-niklas.cassel@linaro.org>

Add qcom-opp bindings with properties needed for Core Power Reduction (CPR).

CPR is included in a great variety of Qualcomm SoC, e.g. msm8916 and msm8996,
and was first introduced in msm8974.

Co-developed-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org>
---
 .../devicetree/bindings/opp/qcom-opp.txt      | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/opp/qcom-opp.txt

diff --git a/Documentation/devicetree/bindings/opp/qcom-opp.txt b/Documentation/devicetree/bindings/opp/qcom-opp.txt
new file mode 100644
index 000000000000..d24280467db7
--- /dev/null
+++ b/Documentation/devicetree/bindings/opp/qcom-opp.txt
@@ -0,0 +1,24 @@
+Qualcomm OPP bindings to describe OPP nodes
+
+The bindings are based on top of the operating-points-v2 bindings
+described in Documentation/devicetree/bindings/opp/opp.txt
+Additional properties are described below.
+
+* OPP Table Node
+
+Required properties:
+- compatible: Allow OPPs to express their compatibility. It should be:
+  "operating-points-v2-qcom-level"
+
+* OPP Node
+
+Optional properties:
+- opp-hz: Frequency in Hz, expressed as a 64-bit big-endian integer. Even
+  though a power domain doesn't need a opp-hz, there can be devices in the
+  power domain that need to know the highest supported frequency for each
+  corner/level (e.g. CPR), in order to properly initialize the hardware.
+
+- qcom,opp-fuse-level: A positive value representing the fuse corner/level
+  associated with this OPP node. Sometimes several corners/levels shares
+  a certain fuse corner/level. A fuse corner/level contains e.g. ref uV,
+  min uV, and max uV.
-- 
2.20.1


  parent reply	other threads:[~2019-04-04  5:10 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-04  5:09 [RFC PATCH 0/9] Add support for QCOM Core Power Reduction Niklas Cassel
2019-04-04  5:09 ` [RFC PATCH 1/9] drivers: regulator: qcom_spmi: enable linear range info Niklas Cassel
2019-04-04  5:55   ` Mark Brown
2019-04-04  6:59     ` Jorge Ramirez
2019-04-04  7:49       ` Mark Brown
2019-04-04  6:59     ` Jorge Ramirez
2019-04-04  5:09 ` [RFC PATCH 2/9] cpufreq: qcom: Re-organise kryo cpufreq to use it for other nvmem based qcom socs Niklas Cassel
2019-04-06  6:07   ` Rob Herring
2019-04-08  7:04   ` Sricharan R
2019-04-08 10:44   ` Viresh Kumar
2019-04-04  5:09 ` [RFC PATCH 3/9] cpufreq: qcom: create a driver struct Niklas Cassel
2019-04-09  5:42   ` Viresh Kumar
2019-04-04  5:09 ` [RFC PATCH 4/9] cpufreq: qcom: support qcs404 on nvmem driver Niklas Cassel
2019-04-09  5:48   ` Viresh Kumar
2019-04-04  5:09 ` [RFC PATCH 5/9] cpufreq: Add qcs404 to cpufreq-dt-platdev blacklist Niklas Cassel
2019-04-04  5:09 ` Niklas Cassel [this message]
2019-04-09  9:23   ` [RFC PATCH 6/9] dt-bindings: opp: Add qcom-opp bindings with properties needed for CPR Viresh Kumar
2019-07-05 10:56     ` Niklas Cassel
2019-04-04  5:09 ` [RFC PATCH 7/9] dt-bindings: power: avs: Add support for CPR (Core Power Reduction) Niklas Cassel
2019-04-06  6:07   ` Rob Herring
2019-04-04  5:09 ` [RFC PATCH 8/9] " Niklas Cassel
2019-04-04  5:09 ` [RFC PATCH 9/9] arm64: dts: qcom: qcs404: Add CPR and populate OPP tables Niklas Cassel
2019-04-08 10:30 ` [RFC PATCH 0/9] Add support for QCOM Core Power Reduction Viresh Kumar

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=20190404050931.9812-7-niklas.cassel@linaro.org \
    --to=niklas.cassel@linaro.org \
    --cc=andy.gross@linaro.org \
    --cc=david.brown@linaro.org \
    --cc=devicetree@vger.kernel.org \
    --cc=jorge.ramirez-ortiz@linaro.org \
    --cc=linux-arm-msm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pm@vger.kernel.org \
    --cc=mark.rutland@arm.com \
    --cc=nm@ti.com \
    --cc=robh+dt@kernel.org \
    --cc=sboyd@kernel.org \
    --cc=vireshk@kernel.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).