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Message-Id: <20211208101508.24582-1-david@ixit.cz>
Date: Wed, 8 Dec 2021 11:15:08 +0100
From: David Heidelberg <david@...t.cz>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Andy Gross <agross@...nel.org>,
Bjorn Andersson <bjorn.andersson@...aro.org>,
Rob Herring <robh+dt@...nel.org>,
Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Cc: ~okias/devicetree@...ts.sr.ht, David Heidelberg <david@...t.cz>,
linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v4] dt-bindings: misc: fastrpc convert bindings to yaml
Convert Qualcomm FastRPC bindings to yaml format, so that we could validate
dt-entries correctly and any future additions can go into yaml format.
Also:
- simplify example
- embrace compute-cb@ subnodes instead of just cb@
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Signed-off-by: David Heidelberg <david@...t.cz>
---
v4:
- combined mine and Srinivas versions of the patch
- previously found issues should be fixed
.../devicetree/bindings/misc/qcom,fastrpc.txt | 78 ---------------
.../bindings/misc/qcom,fastrpc.yaml | 94 +++++++++++++++++++
2 files changed, 94 insertions(+), 78 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/misc/qcom,fastrpc.txt
create mode 100644 Documentation/devicetree/bindings/misc/qcom,fastrpc.yaml
diff --git a/Documentation/devicetree/bindings/misc/qcom,fastrpc.txt b/Documentation/devicetree/bindings/misc/qcom,fastrpc.txt
deleted file mode 100644
index 2a1827ab50d2..000000000000
--- a/Documentation/devicetree/bindings/misc/qcom,fastrpc.txt
+++ /dev/null
@@ -1,78 +0,0 @@
-Qualcomm Technologies, Inc. FastRPC Driver
-
-The FastRPC implements an IPC (Inter-Processor Communication)
-mechanism that allows for clients to transparently make remote method
-invocations across DSP and APPS boundaries. This enables developers
-to offload tasks to the DSP and free up the application processor for
-other tasks.
-
-- compatible:
- Usage: required
- Value type: <stringlist>
- Definition: must be "qcom,fastrpc"
-
-- label
- Usage: required
- Value type: <string>
- Definition: should specify the dsp domain name this fastrpc
- corresponds to. must be one of this: "adsp", "mdsp", "sdsp", "cdsp"
-
-- #address-cells
- Usage: required
- Value type: <u32>
- Definition: Must be 1
-
-- #size-cells
- Usage: required
- Value type: <u32>
- Definition: Must be 0
-
-= COMPUTE BANKS
-Each subnode of the Fastrpc represents compute context banks available
-on the dsp.
-- All Compute context banks MUST contain the following properties:
-
-- compatible:
- Usage: required
- Value type: <stringlist>
- Definition: must be "qcom,fastrpc-compute-cb"
-
-- reg
- Usage: required
- Value type: <u32>
- Definition: Context Bank ID.
-
-- qcom,nsessions:
- Usage: Optional
- Value type: <u32>
- Defination: A value indicating how many sessions can share this
- context bank. Defaults to 1 when this property
- is not specified.
-
-Example:
-
-adsp-pil {
- compatible = "qcom,msm8996-adsp-pil";
- ...
- smd-edge {
- label = "lpass";
- fastrpc {
- compatible = "qcom,fastrpc";
- qcom,smd-channels = "fastrpcsmd-apps-dsp";
- label = "adsp";
- #address-cells = <1>;
- #size-cells = <0>;
-
- cb@1 {
- compatible = "qcom,fastrpc-compute-cb";
- reg = <1>;
- };
-
- cb@2 {
- compatible = "qcom,fastrpc-compute-cb";
- reg = <2>;
- };
- ...
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/misc/qcom,fastrpc.yaml b/Documentation/devicetree/bindings/misc/qcom,fastrpc.yaml
new file mode 100644
index 000000000000..f42ab208a7fc
--- /dev/null
+++ b/Documentation/devicetree/bindings/misc/qcom,fastrpc.yaml
@@ -0,0 +1,94 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/misc/qcom,fastrpc.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Qualcomm FastRPC Driver
+
+maintainers:
+ - Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
+
+description: |
+ The FastRPC implements an IPC (Inter-Processor Communication)
+ mechanism that allows for clients to transparently make remote method
+ invocations across DSP and APPS boundaries. This enables developers
+ to offload tasks to the DSP and free up the application processor for
+ other tasks.
+
+properties:
+ compatible:
+ items:
+ - const: qcom,fastrpc
+
+ label:
+ items:
+ enum:
+ - adsp
+ - mdsp
+ - sdsp
+ - cdsp
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+patternProperties:
+ "(compute-)?cb@[0-9]$":
+ type: object
+
+ description: >
+ Each subnode of the Fastrpc represents compute context banks available on the dsp.
+
+ properties:
+ compatible:
+ items:
+ - const: qcom,fastrpc-compute-cb
+
+ reg:
+ maxItems: 1
+
+ qcom,nsession:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ default: 1
+ description: >
+ A value indicating how many sessions can share this context bank.
+
+ required:
+ - compatible
+ - reg
+
+ additionalProperties: true
+
+required:
+ - compatible
+ - label
+ - '#address-cells'
+ - '#size-cells'
+
+additionalProperties: true
+
+examples:
+ - |
+ smd-edge {
+ label = "lpass";
+ fastrpc {
+ compatible = "qcom,fastrpc";
+ label = "adsp";
+ qcom,smd-channels = "fastrpcsmd-apps-dsp";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ compute-cb@1 {
+ compatible = "qcom,fastrpc-compute-cb";
+ reg = <1>;
+ };
+
+ compute-cb@2 {
+ compatible = "qcom,fastrpc-compute-cb";
+ reg = <2>;
+ };
+ };
+ };
--
2.33.0
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