From: Rajendra Nayak <rnayak@codeaurora.org>
To: andy.gross@linaro.org, robh@kernel.org, viresh.kumar@linaro.org,
sboyd@kernel.org, ulf.hansson@linaro.org,
collinsd@codeaurora.org, mka@chromium.org
Cc: devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-kernel@vger.kernel.org, henryc.chen@mediatek.com,
Rajendra Nayak <rnayak@codeaurora.org>
Subject: [PATCH v10 1/9] dt-bindings: opp: Introduce opp-level bindings
Date: Thu, 10 Jan 2019 09:28:44 +0530 [thread overview]
Message-ID: <20190110035852.5666-2-rnayak@codeaurora.org> (raw)
In-Reply-To: <20190110035852.5666-1-rnayak@codeaurora.org>
On some SoCs (especially from Qualcomm and MediaTek) an OPP
node needs to describe an additional level/corner value
that is then communicated to a remote microprocessor by the CPU, which
then takes some actions (like adjusting voltage values across variousi
rails) based on the value passed.
Add opp-level as an additional property in the OPP node and describe it
in the OPP bindings document.
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
---
Documentation/devicetree/bindings/opp/opp.txt | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/opp/opp.txt b/Documentation/devicetree/bindings/opp/opp.txt
index c396c4c0af92..e83fb7cbfd58 100644
--- a/Documentation/devicetree/bindings/opp/opp.txt
+++ b/Documentation/devicetree/bindings/opp/opp.txt
@@ -129,6 +129,11 @@ Optional properties:
- opp-microamp-<name>: Named opp-microamp property. Similar to
opp-microvolt-<name> property, but for microamp instead.
+- opp-level: On some SoC platforms an OPP node can describe a positive value
+ representing a corner/level that's communicated with a remote microprocessor
+ (usually called the power manager) which then translates it into a certain
+ voltage on a voltage rail.
+
- clock-latency-ns: Specifies the maximum possible transition latency (in
nanoseconds) for switching to this OPP from any other OPP.
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation
next prev parent reply other threads:[~2019-01-10 3:58 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-10 3:58 [PATCH v10 0/9] Add power domain driver for corners on msm8996/sdm845 Rajendra Nayak
2019-01-10 3:58 ` Rajendra Nayak [this message]
2019-01-10 3:58 ` [PATCH v10 2/9] OPP: Add support for parsing the 'opp-level' property Rajendra Nayak
2019-01-10 3:58 ` [PATCH v10 3/9] dt-bindings: power: Add qcom rpm power domain driver bindings Rajendra Nayak
2019-01-10 3:58 ` [PATCH v10 4/9] soc: qcom: rpmpd: Add a Power domain driver to model corners Rajendra Nayak
2019-01-10 3:58 ` [PATCH v10 5/9] soc: qcom: rpmpd: Add support for get/set performance state Rajendra Nayak
2019-01-10 3:58 ` [PATCH v10 6/9] arm64: dts: msm8996: Add rpmpd device node Rajendra Nayak
2019-01-10 3:58 ` [PATCH v10 7/9] soc: qcom: rpmhpd: Add RPMh power domain driver Rajendra Nayak
2019-01-10 3:58 ` [PATCH v10 8/9] arm64: dts: sdm845: Add rpmh powercontroller node Rajendra Nayak
2019-01-10 3:58 ` [PATCH v10 9/9] soc: qcom: rpmhpd: Mark mx as a parent for cx Rajendra Nayak
2019-01-10 4:01 ` [PATCH v10 0/9] Add power domain driver for corners on msm8996/sdm845 Rajendra Nayak
-- strict thread matches above, loose matches on Subject: below --
2019-01-09 9:04 Rajendra Nayak
2019-01-09 9:04 ` [PATCH v10 1/9] dt-bindings: opp: Introduce opp-level bindings Rajendra Nayak
2019-01-09 9:09 ` Viresh Kumar
2019-01-09 9:20 ` Rajendra Nayak
2019-01-09 9:24 ` Viresh Kumar
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