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Message-Id: <20240322145406.2613256-1-Frank.Li@nxp.com>
Date: Fri, 22 Mar 2024 10:54:05 -0400
From: Frank Li <Frank.Li@....com>
To: Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Shengjiu Wang <shengjiu.wang@....com>,
linux-sound@...r.kernel.org (open list:SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEM...),
devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS),
linux-kernel@...r.kernel.org (open list)
Cc: imx@...ts.linux.dev
Subject: [PATCH v2 1/1] ASoC: dt-bindings: fsl-esai: Convert fsl,esai.txt to yaml
Convert fsl,esai.txt to yaml. So DTB_CHECK tools can verify dts file about
esai part.
clock-names 'spba' is optional according to description. So minItems of
clocks and clock-names is 3.
Signed-off-by: Frank Li <Frank.Li@....com>
---
Notes:
Change from v1 to v2
- alphabetical order compatible string according to rob's suggestion
- clock description move under 'clock' according to kryszof's suggestion
- fix descritpion indent according to rob's suggestion
Pass dt_binding check
make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- -j8 dt_binding_check DT_SCHEMA_FILES=fsl,esai.yaml
DTEX Documentation/devicetree/bindings/sound/fsl,esai.example.dts
LINT Documentation/devicetree/bindings
CHKDT Documentation/devicetree/bindings/processed-schema.json
SCHEMA Documentation/devicetree/bindings/processed-schema.json
DTC_CHK Documentation/devicetree/bindings/sound/fsl,esai.example.dtb
.../devicetree/bindings/sound/fsl,esai.txt | 68 ----------
.../devicetree/bindings/sound/fsl,esai.yaml | 116 ++++++++++++++++++
2 files changed, 116 insertions(+), 68 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/sound/fsl,esai.txt
create mode 100644 Documentation/devicetree/bindings/sound/fsl,esai.yaml
diff --git a/Documentation/devicetree/bindings/sound/fsl,esai.txt b/Documentation/devicetree/bindings/sound/fsl,esai.txt
deleted file mode 100644
index 90112ca1ff423..0000000000000
--- a/Documentation/devicetree/bindings/sound/fsl,esai.txt
+++ /dev/null
@@ -1,68 +0,0 @@
-Freescale Enhanced Serial Audio Interface (ESAI) Controller
-
-The Enhanced Serial Audio Interface (ESAI) provides a full-duplex serial port
-for serial communication with a variety of serial devices, including industry
-standard codecs, Sony/Phillips Digital Interface (S/PDIF) transceivers, and
-other DSPs. It has up to six transmitters and four receivers.
-
-Required properties:
-
- - compatible : Compatible list, should contain one of the following
- compatibles:
- "fsl,imx35-esai",
- "fsl,vf610-esai",
- "fsl,imx6ull-esai",
- "fsl,imx8qm-esai",
-
- - reg : Offset and length of the register set for the device.
-
- - interrupts : Contains the spdif interrupt.
-
- - dmas : Generic dma devicetree binding as described in
- Documentation/devicetree/bindings/dma/dma.txt.
-
- - dma-names : Two dmas have to be defined, "tx" and "rx".
-
- - clocks : Contains an entry for each entry in clock-names.
-
- - clock-names : Includes the following entries:
- "core" The core clock used to access registers
- "extal" The esai baud clock for esai controller used to
- derive HCK, SCK and FS.
- "fsys" The system clock derived from ahb clock used to
- derive HCK, SCK and FS.
- "spba" The spba clock is required when ESAI is placed as a
- bus slave of the Shared Peripheral Bus and when two
- or more bus masters (CPU, DMA or DSP) try to access
- it. This property is optional depending on the SoC
- design.
-
- - fsl,fifo-depth : The number of elements in the transmit and receive
- FIFOs. This number is the maximum allowed value for
- TFCR[TFWM] or RFCR[RFWM].
-
- - fsl,esai-synchronous: This is a boolean property. If present, indicating
- that ESAI would work in the synchronous mode, which
- means all the settings for Receiving would be
- duplicated from Transmission related registers.
-
-Optional properties:
-
- - big-endian : If this property is absent, the native endian mode
- will be in use as default, or the big endian mode
- will be in use for all the device registers.
-
-Example:
-
-esai: esai@...4000 {
- compatible = "fsl,imx35-esai";
- reg = <0x02024000 0x4000>;
- interrupts = <0 51 0x04>;
- clocks = <&clks 208>, <&clks 118>, <&clks 208>;
- clock-names = "core", "extal", "fsys";
- dmas = <&sdma 23 21 0>, <&sdma 24 21 0>;
- dma-names = "rx", "tx";
- fsl,fifo-depth = <128>;
- fsl,esai-synchronous;
- big-endian;
-};
diff --git a/Documentation/devicetree/bindings/sound/fsl,esai.yaml b/Documentation/devicetree/bindings/sound/fsl,esai.yaml
new file mode 100644
index 0000000000000..f167f1634d7e3
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/fsl,esai.yaml
@@ -0,0 +1,116 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/fsl,esai.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale Enhanced Serial Audio Interface (ESAI) Controller
+
+maintainers:
+ - Shengjiu Wang <shengjiu.wang@....com>
+ - Frank Li <Frank.Li@....com>
+
+description:
+ The Enhanced Serial Audio Interface (ESAI) provides a full-duplex serial port
+ for serial communication with a variety of serial devices, including industry
+ standard codecs, Sony/Phillips Digital Interface (S/PDIF) transceivers, and
+ other DSPs. It has up to six transmitters and four receivers.
+
+properties:
+ compatible:
+ enum:
+ - fsl,imx35-esai
+ - fsl,imx6ull-esai
+ - fsl,imx8qm-esai
+ - fsl,vf610-esai
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ minItems: 3
+ items:
+ - description:
+ The core clock used to access registers.
+ - description:
+ The esai baud clock for esai controller used to
+ derive HCK, SCK and FS.
+ - description:
+ The system clock derived from ahb clock used to
+ derive HCK, SCK and FS.
+ - description:
+ The spba clock is required when ESAI is placed as a
+ bus slave of the Shared Peripheral Bus and when two
+ or more bus masters (CPU, DMA or DSP) try to access
+ it. This property is optional depending on the SoC
+ design.
+
+ clock-names:
+ minItems: 3
+ items:
+ - const: core
+ - const: extal
+ - const: fsys
+ - const: spba
+
+ dmas:
+ minItems: 2
+ maxItems: 2
+
+ dma-names:
+ items:
+ - const: rx
+ - const: tx
+
+ fsl,fifo-depth:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ The number of elements in the transmit and receive
+ FIFOs. This number is the maximum allowed value for
+ TFCR[TFWM] or RFCR[RFWM].
+
+ fsl,esai-synchronous:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ This is a boolean property. If present, indicating
+ that ESAI would work in the synchronous mode, which
+ means all the settings for Receiving would be
+ duplicated from Transmission related registers.
+
+ big-endian:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ If this property is absent, the native endian mode
+ will be in use as default, or the big endian mode
+ will be in use for all the device registers.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - dmas
+ - dma-names
+ - fsl,fifo-depth
+ - fsl,esai-synchronous
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ esai@...4000 {
+ compatible = "fsl,imx35-esai";
+ reg = <0x02024000 0x4000>;
+ interrupts = <0 51 0x04>;
+ clocks = <&clks 208>, <&clks 118>, <&clks 208>;
+ clock-names = "core", "extal", "fsys";
+ dmas = <&sdma 23 21 0>, <&sdma 24 21 0>;
+ dma-names = "rx", "tx";
+ fsl,fifo-depth = <128>;
+ fsl,esai-synchronous;
+ big-endian;
+ };
--
2.34.1
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