Re: [TEGRA194_CPUFREQ PATCH v6 1/3] dt-bindings: arm: Add NVIDIA Tegra194 CPU Complex binding

2020-07-16 Thread Rob Herring
On Wed, 15 Jul 2020 19:01:23 +0530, Sumit Gupta wrote:
> Add device-tree binding documentation to represent Tegra194
> CPU Complex with compatible string under 'cpus' node. This
> can be used by drivers like cpufreq which don't have their
> node or CPU Complex node to bind to. Also, documenting
> 'nvidia,bpmp' property which points to BPMP device.
> 
> Signed-off-by: Sumit Gupta 
> ---
>  .../bindings/arm/nvidia,tegra194-ccplex.yaml   | 69 
> ++
>  1 file changed, 69 insertions(+)
>  create mode 100644 
> Documentation/devicetree/bindings/arm/nvidia,tegra194-ccplex.yaml
> 

Reviewed-by: Rob Herring 


[TEGRA194_CPUFREQ PATCH v6 1/3] dt-bindings: arm: Add NVIDIA Tegra194 CPU Complex binding

2020-07-15 Thread Sumit Gupta
Add device-tree binding documentation to represent Tegra194
CPU Complex with compatible string under 'cpus' node. This
can be used by drivers like cpufreq which don't have their
node or CPU Complex node to bind to. Also, documenting
'nvidia,bpmp' property which points to BPMP device.

Signed-off-by: Sumit Gupta 
---
 .../bindings/arm/nvidia,tegra194-ccplex.yaml   | 69 ++
 1 file changed, 69 insertions(+)
 create mode 100644 
Documentation/devicetree/bindings/arm/nvidia,tegra194-ccplex.yaml

diff --git a/Documentation/devicetree/bindings/arm/nvidia,tegra194-ccplex.yaml 
b/Documentation/devicetree/bindings/arm/nvidia,tegra194-ccplex.yaml
new file mode 100644
index 000..1043e4b
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/nvidia,tegra194-ccplex.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/arm/nvidia,tegra194-ccplex.yaml#";
+$schema: "http://devicetree.org/meta-schemas/core.yaml#";
+
+title: NVIDIA Tegra194 CPU Complex device tree bindings
+
+maintainers:
+  - Thierry Reding 
+  - Jonathan Hunter 
+  - Sumit Gupta 
+
+description: |+
+  Tegra194 SOC has homogeneous architecture where each cluster has two
+  symmetric cores. Compatible string in "cpus" node represents the CPU
+  Complex having all clusters.
+
+properties:
+  $nodename:
+const: cpus
+
+  compatible:
+enum:
+  - nvidia,tegra194-ccplex
+
+  nvidia,bpmp:
+$ref: '/schemas/types.yaml#/definitions/phandle'
+description: |
+  Specifies the bpmp node that needs to be queried to get
+  operating point data for all CPUs.
+
+examples:
+  - |
+cpus {
+  compatible = "nvidia,tegra194-ccplex";
+  nvidia,bpmp = <&bpmp>;
+  #address-cells = <1>;
+  #size-cells = <0>;
+
+  cpu0_0: cpu@0 {
+compatible = "nvidia,tegra194-carmel";
+device_type = "cpu";
+reg = <0x0>;
+enable-method = "psci";
+  };
+
+  cpu0_1: cpu@1 {
+compatible = "nvidia,tegra194-carmel";
+device_type = "cpu";
+reg = <0x001>;
+enable-method = "psci";
+  };
+
+  cpu1_0: cpu@100 {
+compatible = "nvidia,tegra194-carmel";
+device_type = "cpu";
+reg = <0x100>;
+enable-method = "psci";
+  };
+
+  cpu1_1: cpu@101 {
+compatible = "nvidia,tegra194-carmel";
+device_type = "cpu";
+reg = <0x101>;
+enable-method = "psci";
+  };
+};
+...
-- 
2.7.4