linux-kernel - [PATCH 1/5] dt-bindings: serial: 8250

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Date: Thu, 23 May 2024 09:58:15 +0200
From: Markus Schneider-Pargmann <msp@...libre.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jirislaby@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Tony Lindgren <tony@...mide.com>,
	John Ogness <john.ogness@...utronix.de>,
	Markus Schneider-Pargmann <msp@...libre.com>,
	Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
	Ronald Wahl <ronald.wahl@...itan.com>,
	Thomas Richard <thomas.richard@...tlin.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Arnd Bergmann <arnd@...db.de>,
	Vignesh Raghavendra <vigneshr@...com>
Cc: Vibhore Vardhan <vibhore@...com>,
	Kevin Hilman <khilman@...libre.com>,
	Dhruva Gole <d-gole@...com>,
	linux-kernel@...r.kernel.org,
	linux-serial@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: [PATCH 1/5] dt-bindings: serial: 8250_omap: Add wakeup pinctrl state

Pins associated with the 8250 omap unit can be the source of a wakeup in
deep sleep states. To be able to wakeup, these pins have to be
configured in a special way. To support this configuration add the
default and wakeup pinctrl states.

Signed-off-by: Markus Schneider-Pargmann <msp@...libre.com>
---
 .../devicetree/bindings/serial/8250_omap.yaml    | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/Documentation/devicetree/bindings/serial/8250_omap.yaml b/Documentation/devicetree/bindings/serial/8250_omap.yaml
index 6a7be42da523..402e2ca81017 100644
--- a/Documentation/devicetree/bindings/serial/8250_omap.yaml
+++ b/Documentation/devicetree/bindings/serial/8250_omap.yaml
@@ -77,6 +77,22 @@ properties:
   current-speed: true
   overrun-throttle-ms: true
 
+  pinctrl-0:
+    description: Default pinctrl state
+
+  pinctrl-1:
+    description: Wakeup pinctrl state
+
+  pinctrl-names:
+    description:
+      When present should contain at least "default" describing the default pin
+      states. The second state called "wakeup" describes the pins in their
+      wakeup configuration required to exit sleep states.
+    minItems: 1
+    items:
+      - const: default
+      - const: wakeup
+
 required:
   - compatible
   - reg
-- 
2.43.0