dt-bindings: interconnect: single yaml file for RPM interconnect drivers

MSM8916 and QCS404 bindings are almost identical, so combine them into one.
This will make it easier to add interconnect bindings for more SoC with RPM.

Signed-off-by: Jun Nie <jun.nie@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20201204075345.5161-4-jun.nie@linaro.org
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>

1 files changed, 81 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml b/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml
new file mode 100644
index 000000000000..d720b68b3ead
--- /dev/null
+++ b/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml
@@ -0,0 +1,81 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interconnect/qcom,rpm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm RPM Network-On-Chip Interconnect
+
+maintainers:
+  - Georgi Djakov <georgi.djakov@linaro.org>
+
+description: |
+  RPM interconnect providers support system bandwidth requirements through
+  RPM processor. The provider is able to communicate with the RPM through
+  the RPM shared memory device.
+
+properties:
+  reg:
+    maxItems: 1
+
+  compatible:
+    enum:
+      - qcom,msm8916-bimc
+      - qcom,msm8916-pcnoc
+      - qcom,msm8916-snoc
+      - qcom,qcs404-bimc
+      - qcom,qcs404-pcnoc
+      - qcom,qcs404-snoc
+
+  '#interconnect-cells':
+    const: 1
+
+  clock-names:
+    items:
+      - const: bus
+      - const: bus_a
+
+  clocks:
+    items:
+      - description: Bus Clock
+      - description: Bus A Clock
+
+required:
+  - compatible
+  - reg
+  - '#interconnect-cells'
+  - clock-names
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+      #include <dt-bindings/clock/qcom,rpmcc.h>
+
+      bimc: interconnect@400000 {
+              compatible = "qcom,msm8916-bimc";
+              reg = <0x00400000 0x62000>;
+              #interconnect-cells = <1>;
+              clock-names = "bus", "bus_a";
+              clocks = <&rpmcc RPM_SMD_BIMC_CLK>,
+                       <&rpmcc RPM_SMD_BIMC_A_CLK>;
+      };
+
+      pcnoc: interconnect@500000 {
+              compatible = "qcom,msm8916-pcnoc";
+              reg = <0x00500000 0x11000>;
+              #interconnect-cells = <1>;
+              clock-names = "bus", "bus_a";
+              clocks = <&rpmcc RPM_SMD_PCNOC_CLK>,
+                       <&rpmcc RPM_SMD_PCNOC_A_CLK>;
+      };
+
+      snoc: interconnect@580000 {
+              compatible = "qcom,msm8916-snoc";
+              reg = <0x00580000 0x14000>;
+              #interconnect-cells = <1>;
+              clock-names = "bus", "bus_a";
+              clocks = <&rpmcc RPM_SMD_SNOC_CLK>,
+                       <&rpmcc RPM_SMD_SNOC_A_CLK>;
+      };