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Message-Id: <20221118065246.6835-11-srinivas.kandagatla@linaro.org>
Date: Fri, 18 Nov 2022 06:52:44 +0000
From: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To: gregkh@...uxfoundation.org
Cc: linux-kernel@...r.kernel.org,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
Rob Herring <robh@...nel.org>,
Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH 10/12] dt-bindings: slimbus: convert bus description to DT schema
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Convert the SLIMbus bus description bindings to DT Schema.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Reviewed-by: Rob Herring <robh@...nel.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
.../devicetree/bindings/slimbus/bus.txt | 60 ------------
.../bindings/slimbus/slim-ngd-qcom-ctrl.txt | 2 -
.../bindings/slimbus/slim-qcom-ctrl.txt | 3 -
.../devicetree/bindings/slimbus/slimbus.yaml | 95 +++++++++++++++++++
4 files changed, 95 insertions(+), 65 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/slimbus/bus.txt
create mode 100644 Documentation/devicetree/bindings/slimbus/slimbus.yaml
diff --git a/Documentation/devicetree/bindings/slimbus/bus.txt b/Documentation/devicetree/bindings/slimbus/bus.txt
deleted file mode 100644
index bbe871f82a8b..000000000000
--- a/Documentation/devicetree/bindings/slimbus/bus.txt
+++ /dev/null
@@ -1,60 +0,0 @@
-SLIM(Serial Low Power Interchip Media Bus) bus
-
-SLIMbus is a 2-wire bus, and is used to communicate with peripheral
-components like audio-codec.
-
-Required property for SLIMbus controller node:
-- compatible - name of SLIMbus controller
-
-Child nodes:
-Every SLIMbus controller node can contain zero or more child nodes
-representing slave devices on the bus. Every SLIMbus slave device is
-uniquely determined by the enumeration address containing 4 fields:
-Manufacturer ID, Product code, Device index, and Instance value for
-the device.
-If child node is not present and it is instantiated after device
-discovery (slave device reporting itself present).
-
-In some cases it may be necessary to describe non-probeable device
-details such as non-standard ways of powering up a device. In
-such cases, child nodes for those devices will be present as
-slaves of the SLIMbus controller, as detailed below.
-
-Required property for SLIMbus child node if it is present:
-- reg - Should be ('Device index', 'Instance ID') from SLIMbus
- Enumeration Address.
- Device Index Uniquely identifies multiple Devices within
- a single Component.
- Instance ID Is for the cases where multiple Devices of the
- same type or Class are attached to the bus.
-
-- compatible -"slimMID,PID". The textual representation of Manufacturer ID,
- Product Code, shall be in lower case hexadecimal with leading
- zeroes suppressed
-
-Optional property for SLIMbus child node if it is present:
-- slim-ifc-dev - Should be phandle to SLIMBus Interface device.
- Required for devices which deal with streams.
-
-SLIMbus example for Qualcomm's slimbus manager component:
-
- slim@...80000 {
- compatible = "qcom,apq8064-slim", "qcom,slim";
- reg = <0x28080000 0x2000>,
- interrupts = <0 33 0>;
- clocks = <&lcc SLIMBUS_SRC>, <&lcc AUDIO_SLIMBUS_CLK>;
- clock-names = "iface", "core";
- #address-cells = <2>;
- #size-cell = <0>;
-
- codec_ifd: ifd@0,0{
- compatible = "slim217,60";
- reg = <0 0>;
- };
-
- codec: wcd9310@1,0{
- compatible = "slim217,60";
- reg = <1 0>;
- slim-ifc-dev = <&codec_ifd>;
- };
- };
diff --git a/Documentation/devicetree/bindings/slimbus/slim-ngd-qcom-ctrl.txt b/Documentation/devicetree/bindings/slimbus/slim-ngd-qcom-ctrl.txt
index e94a2ad3a710..7c3d9eb6af5d 100644
--- a/Documentation/devicetree/bindings/slimbus/slim-ngd-qcom-ctrl.txt
+++ b/Documentation/devicetree/bindings/slimbus/slim-ngd-qcom-ctrl.txt
@@ -5,8 +5,6 @@ with SLIMBus slaves directly over the bus using messaging interface and
communicating with master component residing on ADSP for bandwidth and
data-channel management
-Please refer to slimbus/bus.txt for details of the common SLIMBus bindings.
-
- compatible:
Usage: required
Value type: <stringlist>
diff --git a/Documentation/devicetree/bindings/slimbus/slim-qcom-ctrl.txt b/Documentation/devicetree/bindings/slimbus/slim-qcom-ctrl.txt
index 922dcb8ff24a..6d955e129f90 100644
--- a/Documentation/devicetree/bindings/slimbus/slim-qcom-ctrl.txt
+++ b/Documentation/devicetree/bindings/slimbus/slim-qcom-ctrl.txt
@@ -4,9 +4,6 @@ master component.
Required properties:
- - #address-cells - refer to Documentation/devicetree/bindings/slimbus/bus.txt
- - #size-cells - refer to Documentation/devicetree/bindings/slimbus/bus.txt
-
- reg : Offset and length of the register region(s) for the device
- reg-names : Register region name(s) referenced in reg above
Required register resource entries are:
diff --git a/Documentation/devicetree/bindings/slimbus/slimbus.yaml b/Documentation/devicetree/bindings/slimbus/slimbus.yaml
new file mode 100644
index 000000000000..22513fb7c59a
--- /dev/null
+++ b/Documentation/devicetree/bindings/slimbus/slimbus.yaml
@@ -0,0 +1,95 @@
+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/slimbus/slimbus.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: SLIM (Serial Low Power Interchip Media) bus
+
+maintainers:
+ - Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
+
+description:
+ SLIMbus is a 2-wire bus, and is used to communicate with peripheral
+ components like audio-codec.
+
+properties:
+ $nodename:
+ pattern: "^slim(@.*|-[0-9a-f])*$"
+
+ "#address-cells":
+ const: 2
+
+ "#size-cells":
+ const: 0
+
+patternProperties:
+ "^.*@[0-9a-f]+,[0-9a-f]+$":
+ type: object
+ description: |
+ Every SLIMbus controller node can contain zero or more child nodes
+ representing slave devices on the bus. Every SLIMbus slave device is
+ uniquely determined by the enumeration address containing 4 fields::
+ Manufacturer ID, Product code, Device index, and Instance value for the
+ device.
+
+ If child node is not present and it is instantiated after device
+ discovery (slave device reporting itself present).
+
+ In some cases it may be necessary to describe non-probeable device
+ details such as non-standard ways of powering up a device. In such cases,
+ child nodes for those devices will be present as slaves of the SLIMbus
+ controller.
+
+ properties:
+ compatible:
+ pattern: "^slim[0-9a-f]+,[0-9a-f]+$"
+
+ reg:
+ maxItems: 1
+ description: |
+ Pair of (device index, instande ID), where::
+ - Device index, which uniquely identifies multiple devices within a
+ single component.
+ - Instance ID, can be used for the cases where multiple devices of
+ the same type or class are attached to the bus.
+
+ required:
+ - compatible
+ - reg
+
+ additionalProperties: true
+
+required:
+ - "#address-cells"
+ - "#size-cells"
+
+additionalProperties: true
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gcc-msm8960.h>
+ #include <dt-bindings/clock/qcom,lcc-msm8960.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ soc {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ slim@...80000 {
+ compatible = "qcom,apq8064-slim", "qcom,slim";
+ reg = <0x28080000 0x2000>, <0x80207c 4>;
+ reg-names = "ctrl", "slew";
+ interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&lcc SLIMBUS_SRC>, <&lcc AUDIO_SLIMBUS_CLK>;
+ clock-names = "iface", "core";
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ audio-codec@1,0 {
+ compatible = "slim217,60";
+ reg = <1 0>;
+ };
+ };
+ };
--
2.25.1
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