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Message-Id: <20250811224739.53869-8-jihed.chaibi.dev@gmail.com>
Date: Tue, 12 Aug 2025 00:47:38 +0200
From: Jihed Chaibi <jihed.chaibi.dev@...il.com>
To: linux-kernel@...r.kernel.org
Cc: peter.ujfalusi@...il.com,
dmitry.torokhov@...il.com,
robh@...nel.org,
krzk+dt@...nel.org,
lgirdwood@...il.com,
tiwai@...e.com,
conor+dt@...nel.org,
lee@...nel.org,
ukleinek@...nel.org,
broonie@...nel.org,
gregkh@...uxfoundation.org,
linux-input@...r.kernel.org,
devicetree@...r.kernel.org,
linux-pwm@...r.kernel.org,
linux-sound@...r.kernel.org,
linux-usb@...r.kernel.org,
shuah@...nel.org,
jihed.chaibi.dev@...il.com
Subject: [PATCH 7/8] sound: dt-bindings: ti,omap-twl4030: convert to DT schema
Convert the legacy TXT binding for the OMAP TWL4030 sound card
to the modern YAML DT schema format. This adds formal validation
and improves documentation.
Signed-off-by: Jihed Chaibi <jihed.chaibi.dev@...il.com>
---
.../bindings/sound/omap-twl4030.txt | 62 -----------
.../bindings/sound/ti,omap-twl4030.yaml | 101 ++++++++++++++++++
2 files changed, 101 insertions(+), 62 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/sound/omap-twl4030.txt
create mode 100644 Documentation/devicetree/bindings/sound/ti,omap-twl4030.yaml
diff --git a/Documentation/devicetree/bindings/sound/omap-twl4030.txt b/Documentation/devicetree/bindings/sound/omap-twl4030.txt
deleted file mode 100644
index f6a715e4e..000000000
--- a/Documentation/devicetree/bindings/sound/omap-twl4030.txt
+++ /dev/null
@@ -1,62 +0,0 @@
-* Texas Instruments SoC with twl4030 based audio setups
-
-Required properties:
-- compatible: "ti,omap-twl4030"
-- ti,model: Name of the sound card (for example "omap3beagle")
-- ti,mcbsp: phandle for the McBSP node
-
-Optional properties:
-- ti,codec: phandle for the twl4030 audio node
-- ti,mcbsp-voice: phandle for the McBSP node connected to the voice port of twl
-- ti, jack-det-gpio: Jack detect GPIO
-- ti,audio-routing: List of connections between audio components.
- Each entry is a pair of strings, the first being the connection's sink,
- the second being the connection's source.
- If the routing is not provided all possible connection will be available
-
-Available audio endpoints for the audio-routing table:
-
-Board connectors:
- * Headset Stereophone
- * Earpiece Spk
- * Handsfree Spk
- * Ext Spk
- * Main Mic
- * Sub Mic
- * Headset Mic
- * Carkit Mic
- * Digital0 Mic
- * Digital1 Mic
- * Line In
-
-twl4030 pins:
- * HSOL
- * HSOR
- * EARPIECE
- * HFL
- * HFR
- * PREDRIVEL
- * PREDRIVER
- * CARKITL
- * CARKITR
- * MAINMIC
- * SUBMIC
- * HSMIC
- * DIGIMIC0
- * DIGIMIC1
- * CARKITMIC
- * AUXL
- * AUXR
-
- * Headset Mic Bias
- * Mic Bias 1 /* Used for Main Mic or Digimic0 */
- * Mic Bias 2 /* Used for Sub Mic or Digimic1 */
-
-Example:
-
-sound {
- compatible = "ti,omap-twl4030";
- ti,model = "omap3beagle";
-
- ti,mcbsp = <&mcbsp2>;
-};
diff --git a/Documentation/devicetree/bindings/sound/ti,omap-twl4030.yaml b/Documentation/devicetree/bindings/sound/ti,omap-twl4030.yaml
new file mode 100644
index 000000000..3124320d6
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/ti,omap-twl4030.yaml
@@ -0,0 +1,101 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/ti,omap-twl4030.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments SoC with twl4030 based audio setups
+
+maintainers:
+ - Peter Ujfalusi <peter.ujfalusi@...il.com>
+
+description:
+ Bindings for audio setups on TI OMAP SoCs using TWL4030-family audio codec connected via a McBSP port.
+
+properties:
+ compatible:
+ const: ti,omap-twl4030
+
+ ti,model:
+ $ref: /schemas/types.yaml#/definitions/string
+ description: Name of the sound card (for example "omap3beagle").
+
+ ti,mcbsp:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: phandle for the McBSP node.
+
+ ti,codec:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: phandle for the twl4030 audio node.
+
+ ti,mcbsp-voice:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: phandle to the McBSP node connected to the voice port.
+
+ ti,jack-det-gpio:
+ description: GPIO specifier for jack detection.
+ maxItems: 1
+
+ ti,audio-routing:
+ description: |
+ A list of audio routing connections. Each entry is a pair of strings,
+ with the first being the connection's sink and the second being the
+ source. If not provided, all possible connections are available.
+
+ Available TWL4030 Pins: "HFL", "HFR",
+ "PREDRIVEL", "PREDRIVER", "CARKITL", "CARKITR", "MAINMIC", "SUBMIC",
+ "HSMIC", "DIGIMIC0", "DIGIMIC1", "CARKITMIC", "AUXL", "AUXR",
+ "Headset Mic Bias", "Mic Bias 1", "Mic Bias 2"
+ $ref: /schemas/types.yaml#/definitions/non-unique-string-array
+ items:
+ enum:
+ # Board Connectors
+ - Headset Stereophone
+ - Earpiece Spk
+ - Handsfree Spk
+ - Ext Spk
+ - Main Mic
+ - Sub Mic
+ - Headset Mic
+ - Carkit Mic
+ - Digital0 Mic
+ - Digital1 Mic
+ - Line In
+
+ # CODEC Pins
+ - HSOL
+ - HSOR
+ - EARPIECE
+ - HFL
+ - HFR
+ - PREDRIVEL
+ - PREDRIVER
+ - CARKITL
+ - CARKITR
+ - MAINMIC
+ - SUBMIC
+ - HSMIC
+ - DIGIMIC0
+ - DIGIMIC1
+ - CARKITMIC
+ - AUXL
+ - AUXR
+
+ # Headset Mic Bias
+ - Mic Bias 1 # Used for Main Mic or Digimic0
+ - Mic Bias 2 # Used for Sub Mic or Digimic1
+
+required:
+ - compatible
+ - ti,model
+ - ti,mcbsp
+
+additionalProperties: false
+
+examples:
+ - |
+ sound {
+ compatible = "ti,omap-twl4030";
+ ti,model = "omap3beagle";
+ ti,mcbsp = <&mcbsp2>;
+ };
--
2.39.5
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