[PATCH v3] dt-bindings: sound: tlv320aic3x: Convert to dtschema

Jai Luthra j-luthra at ti.com
Tue Dec 20 13:39:51 CET 2022 

Convert bindings for TI's TLV320AIC3x audio codecs to dtschema.

The following properties are still found in some old dts files, but will
be ignored by the driver:
- adc-settle-ms
- assigned-clock-paranets, assigned-clock-rates, assigned-clocks
- port

Signed-off-by: Jai Luthra <j-luthra at ti.com>
---

Changes in v3:
- Add comment about old undocumented properties
- Address comments on minItems/maxItems

v2: https://lore.kernel.org/linux-devicetree/20220803151726.31628-1-j-luthra@ti.com/

 .../bindings/sound/ti,tlv320aic3x.yaml        | 158 ++++++++++++++++++
 .../devicetree/bindings/sound/tlv320aic3x.txt |  97 -----------
 2 files changed, 158 insertions(+), 97 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/sound/ti,tlv320aic3x.yaml
 delete mode 100644 Documentation/devicetree/bindings/sound/tlv320aic3x.txt

diff --git a/Documentation/devicetree/bindings/sound/ti,tlv320aic3x.yaml b/Documentation/devicetree/bindings/sound/ti,tlv320aic3x.yaml
new file mode 100644
index 000000000000..442b3d7633ef
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/ti,tlv320aic3x.yaml
@@ -0,0 +1,158 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+# Copyright (C) 2022 Texas Instruments Incorporated
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/ti,tlv320aic3x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments TLV320AIC3x Codec
+
+description: |
+  TLV320AIC3x are a series of low-power stereo audio codecs with stereo
+  headphone amplifier, as well as multiple inputs and outputs programmable in
+  single-ended or fully differential configurations.
+
+  The serial control bus supports SPI or I2C protocols, while the serial audio
+  data bus is programmable for I2S, left/right-justified, DSP, or TDM modes.
+
+  The following pins can be referred in the sound node's audio routing property:
+
+  CODEC output pins:
+     LLOUT
+     RLOUT
+     MONO_LOUT
+     HPLOUT
+     HPROUT
+     HPLCOM
+     HPRCOM
+
+  CODEC input pins for TLV320AIC3104:
+     MIC2L
+     MIC2R
+     LINE1L
+     LINE1R
+
+  CODEC input pins for other compatible codecs:
+     MIC3L
+     MIC3R
+     LINE1L
+     LINE2L
+     LINE1R
+     LINE2R
+
+maintainers:
+  - Jai Luthra <j-luthra at ti.com>
+
+properties:
+  compatible:
+    enum:
+      - ti,tlv320aic3x
+      - ti,tlv320aic33
+      - ti,tlv320aic3007
+      - ti,tlv320aic3106
+      - ti,tlv320aic3104
+
+  reg:
+    maxItems: 1
+
+  reset-gpios:
+    maxItems: 1
+    description:
+      GPIO specification for the active low RESET input.
+
+  gpio-reset:
+    maxItems: 1
+    description:
+      Deprecated, please use reset-gpios instead.
+    deprecated: true
+
+  ai3x-gpio-func:
+    description: AIC3X_GPIO1 & AIC3X_GPIO2 Functionality
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    maxItems: 2
+
+  ai3x-micbias-vg:
+    description: MicBias required voltage. If node is omitted then MicBias is powered down.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    oneOf:
+      - const: 1
+        description: MICBIAS output is powered to 2.0V.
+      - const: 2
+        description: MICBIAS output is powered to 2.5V.
+      - const: 3
+        description: MICBIAS output is connected to AVDD.
+
+  ai3x-ocmv:
+    description: Output Common-Mode Voltage selection.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    oneOf:
+      - const: 0
+        description: 1.35V
+      - const: 1
+        description: 1.5V
+      - const: 2
+        description: 1.65V
+      - const: 3
+        description: 1.8V
+
+  AVDD-supply:
+    description: Analog DAC voltage.
+
+  IOVDD-supply:
+    description: I/O voltage.
+
+  DRVDD-supply:
+    description: ADC analog and output driver voltage.
+
+  DVDD-supply:
+    description: Digital core voltage.
+
+  '#sound-dai-cells':
+    const: 0
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      tlv320aic3x_i2c: tlv320aic3x at 1b {
+        compatible = "ti,tlv320aic3x";
+        reg = <0x1b>;
+
+        reset-gpios = <&gpio1 17 GPIO_ACTIVE_LOW>;
+
+        AVDD-supply = <&regulator>;
+        IOVDD-supply = <&regulator>;
+        DRVDD-supply = <&regulator>;
+        DVDD-supply = <&regulator>;
+      };
+    };
+
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    spi {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      tlv320aic3x_spi: codec at 0 {
+        compatible = "ti,tlv320aic3x";
+        reg = <0>; /* CS number */
+        #sound-dai-cells = <0>;
+
+        AVDD-supply = <&regulator>;
+        IOVDD-supply = <&regulator>;
+        DRVDD-supply = <&regulator>;
+        DVDD-supply = <&regulator>;
+        ai3x-ocmv = <0>;
+      };
+    };
+
+...
diff --git a/Documentation/devicetree/bindings/sound/tlv320aic3x.txt b/Documentation/devicetree/bindings/sound/tlv320aic3x.txt
deleted file mode 100644
index 20931a63fd64..000000000000
--- a/Documentation/devicetree/bindings/sound/tlv320aic3x.txt
+++ /dev/null
@@ -1,97 +0,0 @@
-Texas Instruments - tlv320aic3x Codec module
-
-The tlv320aic3x serial control bus communicates through both I2C and SPI bus protocols
-
-Required properties:
-
-- compatible - "string" - One of:
-    "ti,tlv320aic3x" - Generic TLV320AIC3x device
-    "ti,tlv320aic33" - TLV320AIC33
-    "ti,tlv320aic3007" - TLV320AIC3007
-    "ti,tlv320aic3106" - TLV320AIC3106
-    "ti,tlv320aic3104" - TLV320AIC3104
-
-
-- reg - <int> -  I2C slave address
-
-
-Optional properties:
-
-- reset-gpios - GPIO specification for the active low RESET input.
-- ai3x-gpio-func - <array of 2 int> - AIC3X_GPIO1 & AIC3X_GPIO2 Functionality
-				    - Not supported on tlv320aic3104
-- ai3x-micbias-vg - MicBias Voltage required.
-	1 - MICBIAS output is powered to 2.0V,
-	2 - MICBIAS output is powered to 2.5V,
-	3 - MICBIAS output is connected to AVDD,
-	If this node is not mentioned or if the value is incorrect, then MicBias
-	is powered down.
-- ai3x-ocmv - Output Common-Mode Voltage selection:
-	0 - 1.35V,
-	1 - 1.5V,
-	2 - 1.65V,
-	3 - 1.8V
-- AVDD-supply, IOVDD-supply, DRVDD-supply, DVDD-supply : power supplies for the
-  device as covered in Documentation/devicetree/bindings/regulator/regulator.txt
-
-Deprecated properties:
-
-- gpio-reset - gpio pin number used for codec reset
-
-CODEC output pins:
-  * LLOUT
-  * RLOUT
-  * MONO_LOUT
-  * HPLOUT
-  * HPROUT
-  * HPLCOM
-  * HPRCOM
-
-CODEC input pins for TLV320AIC3104:
-  * MIC2L
-  * MIC2R
-  * LINE1L
-  * LINE1R
-
-CODEC input pins for other compatible codecs:
-  * MIC3L
-  * MIC3R
-  * LINE1L
-  * LINE2L
-  * LINE1R
-  * LINE2R
-
-The pins can be used in referring sound node's audio-routing property.
-
-I2C example:
-
-#include <dt-bindings/gpio/gpio.h>
-
-tlv320aic3x: tlv320aic3x at 1b {
-	compatible = "ti,tlv320aic3x";
-	reg = <0x1b>;
-
-	reset-gpios = <&gpio1 17 GPIO_ACTIVE_LOW>;
-
-	AVDD-supply = <&regulator>;
-	IOVDD-supply = <&regulator>;
-	DRVDD-supply = <&regulator>;
-	DVDD-supply = <&regulator>;
-};
-
-SPI example:
-
-spi0: spi at f0000000 {
-	tlv320aic3x: codec at 0 {
-		compatible = "ti,tlv320aic3x";
-		reg = <0>; /* CS number */
-		#sound-dai-cells = <0>;
-		spi-max-frequency = <1000000>;
-
-		AVDD-supply = <&regulator>;
-		IOVDD-supply = <&regulator>;
-		DRVDD-supply = <&regulator>;
-		DVDD-supply = <&regulator>;
-		ai3x-ocmv = <0>;
-	};
-};
-- 
2.17.1

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