From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rajendra Nayak Subject: [PATCH v10 1/9] dt-bindings: opp: Introduce opp-level bindings Date: Wed, 9 Jan 2019 14:34:12 +0530 Message-ID: <20190109090420.8100-2-rnayak@codeaurora.org> References: <20190109090420.8100-1-rnayak@codeaurora.org> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20190109090420.8100-1-rnayak@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.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 List-Id: devicetree@vger.kernel.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 --- 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-: Named opp-microamp property. Similar to opp-microvolt- 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