linux-kernel - [PATCH v3 5/7] dt-bindings: power: Add qcom rpmh power domain driver bindings

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Message-Id: <20180612044052.4402-6-rnayak@codeaurora.org>
Date:   Tue, 12 Jun 2018 10:10:50 +0530
From:   Rajendra Nayak <rnayak@...eaurora.org>
To:     viresh.kumar@...aro.org, sboyd@...nel.org, andy.gross@...aro.org,
        ulf.hansson@...aro.org, collinsd@...eaurora.org
Cc:     devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Rajendra Nayak <rnayak@...eaurora.org>
Subject: [PATCH v3 5/7] dt-bindings: power: Add qcom rpmh power domain driver bindings

Add DT bindings to describe the rpmh powerdomains found on Qualcomm
Technologies, Inc. SoCs. These power domains communicate a performance
state to RPMh, which then translates it into corresponding voltage on
a PMIC rail.

Signed-off-by: Rajendra Nayak <rnayak@...eaurora.org>
---
 .../devicetree/bindings/power/qcom,rpmhpd.txt | 65 +++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/power/qcom,rpmhpd.txt

diff --git a/Documentation/devicetree/bindings/power/qcom,rpmhpd.txt b/Documentation/devicetree/bindings/power/qcom,rpmhpd.txt
new file mode 100644
index 000000000000..41ef7afa6b24
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/qcom,rpmhpd.txt
@@ -0,0 +1,65 @@
+Qualcomm RPMh Power domains
+
+For RPMh Power domains, we communicate a performance state to RPMh
+which then translates it into a corresponding voltage on a rail
+
+Required Properties:
+ - compatible: Should be one of the following
+	* qcom,sdm845-rpmhpd: RPMh Power domain for the sdm845 family of SoC
+ - power-domain-cells: number of cells in power domain specifier
+	must be 1
+ - operating-points-v2: Phandle to the OPP table for the power-domain.
+	Refer to Documentation/devicetree/bindings/power/power_domain.txt
+	and Documentation/devicetree/bindings/opp/qcom-opp.txt for more details
+
+Example:
+
+	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 = <16>;
+		};
+
+		rpmhpd_opp_min_svs: opp2 {
+			qcom-level = <48>;
+		};
+
+		rpmhpd_opp_low_svs: opp3 {
+			qcom-level = <64>;
+		};
+
+		rpmhpd_opp_svs: opp4 {
+			qcom-level = <128>;
+		};
+
+		rpmhpd_opp_svs_l1: opp5 {
+			qcom-level = <192>;
+		};
+
+		rpmhpd_opp_nom: opp6 {
+			qcom-level = <256>;
+		};
+
+		rpmhpd_opp_nom_l1: opp7 {
+			qcom-level = <320>;
+		};
+
+		rpmhpd_opp_nom_l2: opp8 {
+			qcom-level = <336>;
+		};
+
+		rpmhpd_opp_turbo: opp9 {
+			qcom-level = <384>;
+		};
+
+		rpmhpd_opp_turbo_l1: opp10 {
+			qcom-level = <416>;
+		};
+	};
-- 
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