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Message-Id: <1637849744-24844-2-git-send-email-jeyr@codeaurora.org>
Date: Thu, 25 Nov 2021 19:45:40 +0530
From: Jeya R <jeyr@...eaurora.org>
To: linux-arm-msm@...r.kernel.org, srinivas.kandagatla@...aro.org
Cc: Jeya R <jeyr@...eaurora.org>, gregkh@...uxfoundation.org,
linux-kernel@...r.kernel.org, fastrpc.upstream@....qualcomm.com
Subject: [PATCH 1/5] dt-bindings: misc: convert fastrpc bindings to yaml and add property
Convert Qualcomm FastRPC bindings to yaml format and add a property
to set dsp domain as non-secure.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Signed-off-by: Jeya R <jeyr@...eaurora.org>
---
.../devicetree/bindings/misc/qcom,fastrpc.txt | 78 -----------------
.../devicetree/bindings/misc/qcom,fastrpc.yaml | 97 ++++++++++++++++++++++
2 files changed, 97 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 2a1827a..0000000
--- 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 0000000..c3fe39b2
--- /dev/null
+++ b/Documentation/devicetree/bindings/misc/qcom,fastrpc.yaml
@@ -0,0 +1,97 @@
+# SPDX-License-Identifier: (GPL-2.0 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 Technologies, Inc. FastRPC Driver
+
+maintainers:
+ - Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
+
+description: |
+ This binding describes Qualcomm FastRPC 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:
+ const: qcom,fastrpc
+
+ label:
+ enum:
+ - adsp
+ - mdsp
+ - sdsp
+ - cdsp
+
+ qcom,non-secure-domain: true
+ # Specify that dsp domain is non-secure.
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+patternProperties:
+ "^cb@[0-9a-f]$":
+ type: object
+ description: |
+ Compute context bank
+
+ properties:
+ compatible:
+ const: qcom,fastrpc-compute-cb
+
+ reg:
+ maxItems: 1
+ description: Context Bank ID
+
+ qcom,nsessions:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: How many sessions can share this context bank.
+ Defaults to 1 when this property is not specified.
+
+ required:
+ - compatible
+ - reg
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - label
+
+additionalProperties: false
+
+examples:
+ - |
+ adsp-pil {
+ compatible = "qqcom,msm8996-adsp-pil";
+
+ smd-edge {
+ label = "lpass";
+
+ fastrpc {
+ compatible = "qcom,fastrpc";
+ 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>;
+ };
+ };
+ };
+ };
+
+
--
2.7.4
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