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Message-Id: <1658741467-32620-1-git-send-email-shengjiu.wang@nxp.com>
Date: Mon, 25 Jul 2022 17:31:07 +0800
From: Shengjiu Wang <shengjiu.wang@....com>
To: lgirdwood@...il.com, broonie@...nel.org, robh+dt@...nel.org,
krzysztof.kozlowski+dt@...aro.org, alsa-devel@...a-project.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: shengjiu.wang@...il.com
Subject: [PATCH] ASoC: dt-bindings: fsl,sai: Convert format to json-schema
Convert the NXP SAI binding to DT schema format using json-schema.
The Synchronous Audio Interface (SAI) provides an interface that
supports full-duplex serial interfaces with frame synchronization
formats such as I2S, AC97, TDM, and codec/DSP interfaces.
Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
---
.../devicetree/bindings/sound/fsl,sai.yaml | 175 ++++++++++++++++++
.../devicetree/bindings/sound/fsl-sai.txt | 95 ----------
2 files changed, 175 insertions(+), 95 deletions(-)
create mode 100644 Documentation/devicetree/bindings/sound/fsl,sai.yaml
delete mode 100644 Documentation/devicetree/bindings/sound/fsl-sai.txt
diff --git a/Documentation/devicetree/bindings/sound/fsl,sai.yaml b/Documentation/devicetree/bindings/sound/fsl,sai.yaml
new file mode 100644
index 000000000000..adcd77531eba
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/fsl,sai.yaml
@@ -0,0 +1,175 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/fsl,sai.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale Synchronous Audio Interface (SAI).
+
+maintainers:
+ - Shengjiu Wang <shengjiu.wang@....com>
+
+description: |
+ The SAI is based on I2S module that used communicating with audio codecs,
+ which provides a synchronous audio interface that supports fullduplex
+ serial interfaces with frame synchronization such as I2S, AC97, TDM, and
+ codec/DSP interfaces.
+
+properties:
+ compatible:
+ minItems: 1
+ maxItems: 2
+ items:
+ enum:
+ - fsl,vf610-sai
+ - fsl,imx6sx-sai
+ - fsl,imx6ul-sai
+ - fsl,imx7ulp-sai
+ - fsl,imx8mq-sai
+ - fsl,imx8qm-sai
+ - fsl,imx8mm-sai
+ - fsl,imx8mn-sai
+ - fsl,imx8mp-sai
+ - fsl,imx8ulp-sai
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ items:
+ - description: receive and transmit interrupt
+
+ dmas:
+ minItems: 2
+ maxItems: 2
+ description:
+ Must contain a list of pairs of references to DMA specifiers, one for
+ transmission, and one for reception.
+
+ dma-names:
+ minItems: 2
+ maxItems: 2
+ items:
+ enum:
+ - tx
+ - rx
+
+ clocks:
+ minItems: 4
+ items:
+ - description: The ipg clock for register access
+ - description: master clock source 0 (obsoleted, compatible for old dts)
+ - description: master clock source 1
+ - description: master clock source 2
+ - description: master clock source 3
+ - description: PLL clock source for 8kHz series
+ - description: PLL clock source for 11kHz series
+
+ clock-names:
+ minItems: 4
+ maxItems: 7
+ items:
+ enum:
+ - bus
+ - mclk0
+ - mclk1
+ - mclk2
+ - mclk3
+ - pll8k
+ - pll11k
+
+ lsb-first:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description: |
+ Configures whether the LSB or the MSB is transmitted
+ first for the fifo data. If this property is absent,
+ the MSB is transmitted first as default, or the LSB
+ is transmitted first.
+
+ big-endian:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description: |
+ Boolean property, required if all the SAI
+ registers are big-endian rather than little-endian.
+
+ fsl,sai-synchronous-rx:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description: |
+ This is a boolean property. If present, indicating
+ that SAI will work in the synchronous mode (sync Tx
+ with Rx) which means both the transmitter and the
+ receiver will send and receive data by following
+ receiver's bit clocks and frame sync clocks.
+ fsl,sai-asynchronous and fsl,sai-synchronous-rx are exclusive.
+
+ fsl,sai-asynchronous:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description: |
+ This is a boolean property. If present, indicating
+ that SAI will work in the asynchronous mode, which
+ means both transmitter and receiver will send and
+ receive data by following their own bit clocks and
+ frame sync clocks separately.
+ If both fsl,sai-asynchronous and fsl,sai-synchronous-rx are absent, the
+ default synchronous mode (sync Rx with Tx) will be used, which means both
+ transmitter and receiver will send and receive data by following clocks
+ of transmitter.
+ fsl,sai-asynchronous and fsl,sai-synchronous-rx are exclusive.
+
+ fsl,dataline:
+ $ref: /schemas/types.yaml#/definitions/uint32-matrix
+ description: |
+ configure the dataline. it has 3 value for each configuration
+ first one means the type: I2S(1) or PDM(2)
+ second one is dataline mask for 'rx'
+ third one is dataline mask for 'tx'.
+ for example: fsl,dataline = <1 0xff 0xff 2 0xff 0x11>;
+ it means I2S type rx mask is 0xff, tx mask is 0xff, PDM type
+ rx mask is 0xff, tx mask is 0x11 (dataline 1 and 5 enabled).
+
+ fsl,sai-mclk-direction-output:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description: |
+ This is a boolean property. If present,
+ indicates that SAI will output the SAI MCLK clock.
+
+ fsl,shared-interrupt:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description: |
+ This is a boolean property. If present,
+ indicates that interrupt is shared with other modules.
+
+ "#sound-dai-cells":
+ const: 0
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - dmas
+ - dma-names
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/vf610-clock.h>
+ sai2: sai@...31000 {
+ compatible = "fsl,vf610-sai";
+ reg = <0x40031000 0x1000>;
+ interrupts = <86 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_sai2_1>;
+ clocks = <&clks VF610_CLK_PLATFORM_BUS>,
+ <&clks VF610_CLK_SAI2>,
+ <&clks 0>, <&clks 0>;
+ clock-names = "bus", "mclk1", "mclk2", "mclk3";
+ dma-names = "rx", "tx";
+ dmas = <&edma0 0 20>,
+ <&edma0 0 21>;
+ big-endian;
+ lsb-first;
+ };
diff --git a/Documentation/devicetree/bindings/sound/fsl-sai.txt b/Documentation/devicetree/bindings/sound/fsl-sai.txt
deleted file mode 100644
index fbdefc3fade7..000000000000
--- a/Documentation/devicetree/bindings/sound/fsl-sai.txt
+++ /dev/null
@@ -1,95 +0,0 @@
-Freescale Synchronous Audio Interface (SAI).
-
-The SAI is based on I2S module that used communicating with audio codecs,
-which provides a synchronous audio interface that supports fullduplex
-serial interfaces with frame synchronization such as I2S, AC97, TDM, and
-codec/DSP interfaces.
-
-Required properties:
-
- - compatible : Compatible list, contains "fsl,vf610-sai",
- "fsl,imx6sx-sai", "fsl,imx6ul-sai",
- "fsl,imx7ulp-sai", "fsl,imx8mq-sai",
- "fsl,imx8qm-sai", "fsl,imx8mm-sai",
- "fsl,imx8mn-sai", "fsl,imx8mp-sai", or
- "fsl,imx8ulp-sai".
-
- - reg : Offset and length of the register set for the device.
-
- - clocks : Must contain an entry for each entry in clock-names.
-
- - clock-names : Must include the "bus" for register access and
- "mclk1", "mclk2", "mclk3" for bit clock and frame
- clock providing.
- "pll8k", "pll11k" are optional, they are the clock
- source for root clock, one is for 8kHz series rates
- another one is for 11kHz series rates.
- - 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".
-
- - pinctrl-names : Must contain a "default" entry.
-
- - pinctrl-NNN : One property must exist for each entry in
- pinctrl-names. See ../pinctrl/pinctrl-bindings.txt
- for details of the property values.
-
- - lsb-first : Configures whether the LSB or the MSB is transmitted
- first for the fifo data. If this property is absent,
- the MSB is transmitted first as default, or the LSB
- is transmitted first.
-
- - fsl,sai-synchronous-rx: This is a boolean property. If present, indicating
- that SAI will work in the synchronous mode (sync Tx
- with Rx) which means both the transmitter and the
- receiver will send and receive data by following
- receiver's bit clocks and frame sync clocks.
-
- - fsl,sai-asynchronous: This is a boolean property. If present, indicating
- that SAI will work in the asynchronous mode, which
- means both transmitter and receiver will send and
- receive data by following their own bit clocks and
- frame sync clocks separately.
-
- - fsl,dataline : configure the dataline. it has 3 value for each configuration
- first one means the type: I2S(1) or PDM(2)
- second one is dataline mask for 'rx'
- third one is dataline mask for 'tx'.
- for example: fsl,dataline = <1 0xff 0xff 2 0xff 0x11>;
- it means I2S type rx mask is 0xff, tx mask is 0xff, PDM type
- rx mask is 0xff, tx mask is 0x11 (dataline 1 and 4 enabled).
-
-Optional properties:
-
- - big-endian : Boolean property, required if all the SAI
- registers are big-endian rather than little-endian.
-
-Optional properties (for mx6ul):
-
- - fsl,sai-mclk-direction-output: This is a boolean property. If present,
- indicates that SAI will output the SAI MCLK clock.
-
-Note:
-- If both fsl,sai-asynchronous and fsl,sai-synchronous-rx are absent, the
- default synchronous mode (sync Rx with Tx) will be used, which means both
- transmitter and receiver will send and receive data by following clocks
- of transmitter.
-- fsl,sai-asynchronous and fsl,sai-synchronous-rx are exclusive.
-
-Example:
-sai2: sai@...31000 {
- compatible = "fsl,vf610-sai";
- reg = <0x40031000 0x1000>;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_sai2_1>;
- clocks = <&clks VF610_CLK_PLATFORM_BUS>,
- <&clks VF610_CLK_SAI2>,
- <&clks 0>, <&clks 0>;
- clock-names = "bus", "mclk1", "mclk2", "mclk3";
- dma-names = "tx", "rx";
- dmas = <&edma0 0 VF610_EDMA_MUXID0_SAI2_TX>,
- <&edma0 0 VF610_EDMA_MUXID0_SAI2_RX>;
- big-endian;
- lsb-first;
-};
--
2.34.1
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