linux-kernel - [PATCH 1/3] dt-bindings: interconnect: Add Qualcomm QCS404 DT bindings

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Message-Id: <20190405035446.31886-2-georgi.djakov@linaro.org>
Date:   Fri,  5 Apr 2019 10:54:44 +0700
From:   Georgi Djakov <georgi.djakov@...aro.org>
To:     robh+dt@...nel.org, georgi.djakov@...aro.org
Cc:     bjorn.andersson@...aro.org, vkoul@...nel.org, evgreen@...omium.org,
        daidavid1@...eaurora.org, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org
Subject: [PATCH 1/3] dt-bindings: interconnect: Add Qualcomm QCS404 DT bindings

The Qualcomm QCS404 platform has several buses that could be controlled
and tuned according to the bandwidth demand.

Signed-off-by: Georgi Djakov <georgi.djakov@...aro.org>
---
 .../bindings/interconnect/qcom,qcs404.txt     | 45 +++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interconnect/qcom,qcs404.txt

diff --git a/Documentation/devicetree/bindings/interconnect/qcom,qcs404.txt b/Documentation/devicetree/bindings/interconnect/qcom,qcs404.txt
new file mode 100644
index 000000000000..2ea63ea827d7
--- /dev/null
+++ b/Documentation/devicetree/bindings/interconnect/qcom,qcs404.txt
@@ -0,0 +1,45 @@
+Qualcomm QCS404 Network-On-Chip interconnect driver binding
+-----------------------------------------------------------
+
+Required properties :
+- compatible : shall contain only one of the following:
+			"qcom,qcs404-bimc"
+			"qcom,qcs404-pcnoc"
+			"qcom,qcs404-snoc"
+- #interconnect-cells : should contain 1
+
+Optional properties :
+clocks : list of phandles and specifiers to all interconnect bus clocks
+clock-names : clock names should include both "bus_clk" and "bus_a_clk"
+
+Example:
+
+rpm-glink {
+	...
+	rpm_requests: glink-channel {
+		...
+		bimc: interconnect@0 {
+			compatible = "qcom,qcs404-bimc";
+			#interconnect-cells = <1>;
+			clock-names = "bus_clk", "bus_a_clk";
+			clocks = <&rpmcc RPM_SMD_BIMC_CLK>,
+				<&rpmcc RPM_SMD_BIMC_A_CLK>;
+		};
+
+		pnoc: interconnect@1 {
+			compatible = "qcom,qcs404-pcnoc";
+			#interconnect-cells = <1>;
+			clock-names = "bus_clk", "bus_a_clk";
+			clocks = <&rpmcc RPM_SMD_PNOC_CLK>,
+				<&rpmcc RPM_SMD_PNOC_A_CLK>;
+		};
+
+		snoc: interconnect@2 {
+			compatible = "qcom,qcs404-snoc";
+			#interconnect-cells = <1>;
+			clock-names = "bus_clk", "bus_a_clk";
+			clocks = <&rpmcc RPM_SMD_SNOC_CLK>,
+				<&rpmcc RPM_SMD_SNOC_A_CLK>;
+		};
+	};
+};