linux-kernel - [PATCH v6 1/2] usb: dt-bindings: ti,twl4030-usb: convert to DT schema

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250822201727.71593-2-jihed.chaibi.dev@gmail.com>
Date: Fri, 22 Aug 2025 22:17:26 +0200
From: Jihed Chaibi <jihed.chaibi.dev@...il.com>
To: robh@...nel.org
Cc: gregkh@...uxfoundation.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	peter.ujfalusi@...il.com,
	devicetree@...r.kernel.org,
	linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	shuah@...nel.org,
	jihed.chaibi.dev@...il.com
Subject: [PATCH v6 1/2] usb: dt-bindings: ti,twl4030-usb: convert to DT schema

Convert the legacy TXT binding for the TWL4030 USB module
to the modern YAML DT schema format. This adds formal validation
and improves documentation using a conditional schema.

Signed-off-by: Jihed Chaibi <jihed.chaibi.dev@...il.com>

---
Changes in v6:
 - Reworked 'interrupts' property to use a list of items with
   descriptions instead of a single free-form text block.

Changes in v5:
 - Split combined twlxxxx-usb binding into a dedicated file for
   twl4030-usb per maintainer feedback.
 - Used more accurate header for interrupt macros.
 - Improved formatting in the examples.

Changes in v4:
 - This patch is split from larger series per maintainer feedback.
 - v3 link:
    https://lore.kernel.org/all/20250816021523.167049-1-jihed.chaibi.dev@gmail.com/
 - Removed i2c node as it wasn't required by the old binding file.
 - Updated node names to 'usb' and 'usb-phy' in the examples to follow
   generic naming conventions per the Device Tree specification.
 - Replaced raw interrupt values with standard defines for clarity.
 - Improved formatting in the examples for clarity and consistency.

Changes in v3:
 - No changes.

Changes in v2:
 - Added '#phy-cells' property to support PHY framework integration.
---
 .../bindings/usb/ti,twl4030-usb.yaml          | 74 +++++++++++++++++++
 1 file changed, 74 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/ti,twl4030-usb.yaml

diff --git a/Documentation/devicetree/bindings/usb/ti,twl4030-usb.yaml b/Documentation/devicetree/bindings/usb/ti,twl4030-usb.yaml
new file mode 100644
index 000000000..6ef337507
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/ti,twl4030-usb.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/ti,twl4030-usb.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments TWL4030 USB PHY and Comparator
+
+maintainers:
+  - Peter Ujfalusi <peter.ujfalusi@...il.com>
+
+description:
+  Bindings for the USB PHY and comparator module found within the
+  TWL4030 family of companion chips. If a sibling node is compatible with
+  "ti,twl4030-bci", the driver for that node will query this device for
+  USB power status.
+
+properties:
+  compatible:
+    const: ti,twl4030-usb
+
+  interrupts:
+    minItems: 1
+    items:
+      - description: OTG interrupt number for ID events.
+      - description: USB interrupt number for VBUS events.
+
+  usb1v5-supply:
+    description: Phandle to the vusb1v5 regulator.
+
+  usb1v8-supply:
+    description: Phandle to the vusb1v8 regulator.
+
+  usb3v1-supply:
+    description: Phandle to the vusb3v1 regulator.
+
+  usb_mode:
+    description: |
+      The mode used by the PHY to connect to the controller:
+        1: ULPI mode
+        2: CEA2011_3PIN mode
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [1, 2]
+
+  '#phy-cells':
+    const: 0
+
+required:
+  - compatible
+  - interrupts
+  - usb1v5-supply
+  - usb1v8-supply
+  - usb3v1-supply
+  - usb_mode
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    usb-phy {
+        compatible = "ti,twl4030-usb";
+
+        interrupts = <10 IRQ_TYPE_LEVEL_HIGH>;
+        interrupt-parent = <&gic>;
+
+        usb1v5-supply = <&reg_vusb1v5>;
+        usb1v8-supply = <&reg_vusb1v8>;
+        usb3v1-supply  = <&reg_vusb3v1>;
+        usb_mode = <1>;
+
+        #phy-cells = <0>;
+    };
-- 
2.39.5