Merge branch 'icc-sdm660' into icc-next

This patch series adds the SDM660 interconnect provider driver in
order to stop some timeouts and achieve some decent performance by
avoiding to be NoC limited.
It's also providing some power consumption improvement, but I have
only measured that as less heat, which is quite important when
working on thermally constrained devices like smartphones.

Please note that this driver's yaml binding is referring to a MMCC
clock, so this series does depend on the SDM660 MMCC driver that I
have sent separately.
The multimedia clock is required only for the Multimedia NoC (mnoc).

This patch series has been tested against the following devices:
 - Sony Xperia XA2 Ultra (SDM630 Nile Discovery)
 - Sony Xperia 10        (SDM630 Ganges Kirin)
 - Sony Xperia 10 Plus   (SDM636 Ganges Mermaid)

* icc-sdm660
  dt-bindings: interconnect: Add bindings for Qualcomm SDM660 NoC
  interconnect: qcom: Add SDM660 interconnect provider driver
  interconnect: qcom: sdm660: Fix kerneldoc warning

Link: https://lore.kernel.org/r/20201017133718.31327-1-kholk11@gmail.com
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>

Documentation/devicetree/bindings/interconnect/qcom,sdm660.yaml

@@ -0,0 +1,147 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interconnect/qcom,sdm660.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SDM660 Network-On-Chip interconnect
+
+maintainers:
+  - AngeloGioacchino Del Regno <kholk11@gmail.com>
+
+description: |
+  The Qualcomm SDM660 interconnect providers support adjusting the
+  bandwidth requirements between the various NoC fabrics.
+
+properties:
+  reg:
+    maxItems: 1
+
+  compatible:
+    enum:
+      - qcom,sdm660-a2noc
+      - qcom,sdm660-bimc
+      - qcom,sdm660-cnoc
+      - qcom,sdm660-gnoc
+      - qcom,sdm660-mnoc
+      - qcom,sdm660-snoc
+
+  '#interconnect-cells':
+    const: 1
+
+  clocks:
+    minItems: 1
+    maxItems: 3
+
+  clock-names:
+    minItems: 1
+    maxItems: 3
+
+required:
+  - compatible
+  - reg
+  - '#interconnect-cells'
+  - clock-names
+  - clocks
+
+additionalProperties: false
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,sdm660-mnoc
+    then:
+      properties:
+        clocks:
+          items:
+            - description: Bus Clock.
+            - description: Bus A Clock.
+            - description: CPU-NoC High-performance Bus Clock.
+        clock-names:
+          items:
+            - const: bus
+            - const: bus_a
+            - const: iface
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,sdm660-a2noc
+              - qcom,sdm660-bimc
+              - qcom,sdm660-cnoc
+              - qcom,sdm660-gnoc
+              - qcom,sdm660-snoc
+    then:
+      properties:
+        clocks:
+          items:
+            - description: Bus Clock.
+            - description: Bus A Clock.
+        clock-names:
+          items:
+            - const: bus
+            - const: bus_a
+
+examples:
+  - |
+      #include <dt-bindings/clock/qcom,rpmcc.h>
+      #include <dt-bindings/clock/qcom,mmcc-sdm660.h>
+
+      bimc: interconnect@1008000 {
+              compatible = "qcom,sdm660-bimc";
+              reg = <0x01008000 0x78000>;
+              #interconnect-cells = <1>;
+              clock-names = "bus", "bus_a";
+              clocks = <&rpmcc RPM_SMD_BIMC_CLK>,
+                       <&rpmcc RPM_SMD_BIMC_A_CLK>;
+      };
+
+      cnoc: interconnect@1500000 {
+              compatible = "qcom,sdm660-cnoc";
+              reg = <0x01500000 0x10000>;
+              #interconnect-cells = <1>;
+              clock-names = "bus", "bus_a";
+              clocks = <&rpmcc RPM_SMD_CNOC_CLK>,
+                       <&rpmcc RPM_SMD_CNOC_A_CLK>;
+      };
+
+      snoc: interconnect@1626000 {
+              compatible = "qcom,sdm660-snoc";
+              reg = <0x01626000 0x7090>;
+              #interconnect-cells = <1>;
+              clock-names = "bus", "bus_a";
+              clocks = <&rpmcc RPM_SMD_SNOC_CLK>,
+                       <&rpmcc RPM_SMD_SNOC_A_CLK>;
+      };
+
+      a2noc: interconnect@1704000 {
+              compatible = "qcom,sdm660-a2noc";
+              reg = <0x01704000 0xc100>;
+              #interconnect-cells = <1>;
+              clock-names = "bus", "bus_a";
+              clocks = <&rpmcc RPM_SMD_AGGR2_NOC_CLK>,
+                       <&rpmcc RPM_SMD_AGGR2_NOC_A_CLK>;
+      };
+
+      mnoc: interconnect@1745000 {
+              compatible = "qcom,sdm660-mnoc";
+              reg = <0x01745000 0xa010>;
+              #interconnect-cells = <1>;
+              clock-names = "bus", "bus_a", "iface";
+              clocks = <&rpmcc RPM_SMD_MMSSNOC_AXI_CLK>,
+                       <&rpmcc RPM_SMD_MMSSNOC_AXI_CLK_A>,
+                       <&mmcc AHB_CLK_SRC>;
+      };
+
+      gnoc: interconnect@17900000 {
+              compatible = "qcom,sdm660-gnoc";
+              reg = <0x17900000 0xe000>;
+              #interconnect-cells = <1>;
+              clock-names = "bus", "bus_a";
+              clocks = <&xo_board>, <&xo_board>;
+      };

drivers/interconnect/qcom/Kconfig

@@ -74,6 +74,15 @@ config INTERCONNECT_QCOM_SC7180
 	  This is a driver for the Qualcomm Network-on-Chip on sc7180-based
 	  platforms.
 
+config INTERCONNECT_QCOM_SDM660
+	tristate "Qualcomm SDM660 interconnect driver"
+	depends on INTERCONNECT_QCOM
+	depends on QCOM_SMD_RPM
+	select INTERCONNECT_QCOM_SMD_RPM
+	help
+	  This is a driver for the Qualcomm Network-on-Chip on sdm660-based
+	  platforms.
+
 config INTERCONNECT_QCOM_SDM845
 	tristate "Qualcomm SDM845 interconnect driver"
 	depends on INTERCONNECT_QCOM_RPMH_POSSIBLE

drivers/interconnect/qcom/Makefile

@@ -8,6 +8,7 @@ icc-osm-l3-objs				:= osm-l3.o
 qnoc-qcs404-objs			:= qcs404.o
 icc-rpmh-obj				:= icc-rpmh.o
 qnoc-sc7180-objs			:= sc7180.o
+qnoc-sdm660-objs			:= sdm660.o
 qnoc-sdm845-objs			:= sdm845.o
 qnoc-sdx55-objs				:= sdx55.o
 qnoc-sm8150-objs			:= sm8150.o
@@ -22,6 +23,7 @@ obj-$(CONFIG_INTERCONNECT_QCOM_OSM_L3) += icc-osm-l3.o
 obj-$(CONFIG_INTERCONNECT_QCOM_QCS404) += qnoc-qcs404.o
 obj-$(CONFIG_INTERCONNECT_QCOM_RPMH) += icc-rpmh.o
 obj-$(CONFIG_INTERCONNECT_QCOM_SC7180) += qnoc-sc7180.o
+obj-$(CONFIG_INTERCONNECT_QCOM_SDM660) += qnoc-sdm660.o
 obj-$(CONFIG_INTERCONNECT_QCOM_SDM845) += qnoc-sdm845.o
 obj-$(CONFIG_INTERCONNECT_QCOM_SDX55) += qnoc-sdx55.o
 obj-$(CONFIG_INTERCONNECT_QCOM_SM8150) += qnoc-sm8150.o