linux-kernel - [PATCH v3 1/4] dt-bindings: usb: usb-nop-xceiv: Repurpose vbus-regulator

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Date: Tue, 23 Jan 2024 17:51:08 -0500
From: Sean Anderson <sean.anderson@...o.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-usb@...r.kernel.org
Cc: Robert Jarzmik <robert.jarzmik@...e.fr>,
	Felipe Balbi <balbi@...nel.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Jonathan Hunter <jonathanh@...dia.com>,
	Mike Looijmans <mike.looijmans@...ic.nl>,
	Jules Maselbas <jmaselbas@...ray.eu>,
	linux-kernel@...r.kernel.org,
	Sean Anderson <sean.anderson@...o.com>,
	Rob Herring <robh+dt@...nel.org>,
	devicetree@...r.kernel.org
Subject: [PATCH v3 1/4] dt-bindings: usb: usb-nop-xceiv: Repurpose vbus-regulator

The vbus-regulator property was never actually read from the device tree.
Introduce a new property vbus-supply to represent the regulator powering
the VBUS when acting as an A-Device. This supply will be enabled and
disabled as necessary. Note that this is different from vbus-regulator,
which represented the available current available to draw from VBUS in
B-Device mode. Because no one was using vbus-regulator, remove it.

Signed-off-by: Sean Anderson <sean.anderson@...o.com>
Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
---

Changes in v3:
- Update description as suggested by Linus

Changes in v2:
- Fix dt_binding_check errors

 .../devicetree/bindings/usb/usb-nop-xceiv.yaml        | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/usb/usb-nop-xceiv.yaml b/Documentation/devicetree/bindings/usb/usb-nop-xceiv.yaml
index 6734f4d3aa78..9b3ea23654af 100644
--- a/Documentation/devicetree/bindings/usb/usb-nop-xceiv.yaml
+++ b/Documentation/devicetree/bindings/usb/usb-nop-xceiv.yaml
@@ -37,10 +37,11 @@ properties:
     description: Should specify the GPIO detecting a VBus insertion
     maxItems: 1
 
-  vbus-regulator:
-    description: Should specify the regulator supplying current drawn from
-      the VBus line.
-    $ref: /schemas/types.yaml#/definitions/phandle
+  vbus-supply:
+    description: regulator supplying VBUS. It will be enabled and disabled
+                 dynamically in OTG mode. If the regulator is controlled by a
+                 GPIO line, this should be modeled as a regulator-fixed and
+                 referenced by this supply.
 
   wakeup-source:
     description:
@@ -65,7 +66,7 @@ examples:
         vcc-supply = <&hsusb1_vcc_regulator>;
         reset-gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;
         vbus-detect-gpio = <&gpio2 13 GPIO_ACTIVE_HIGH>;
-        vbus-regulator = <&vbus_regulator>;
+        vbus-supply = <&vbus_regulator>;
         #phy-cells = <0>;
     };
 
-- 
2.35.1.1320.gc452695387.dirty