linux-kernel - [PATCH] dt-bindings: gpio: mpfs-gpio: allow parsing of hog child nodes.

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Message-Id: <20220820204130.1380270-1-mail@conchuod.ie>
Date:   Sat, 20 Aug 2022 21:41:32 +0100
From:   Conor Dooley <mail@...chuod.ie>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor.dooley@...rochip.com>
Cc:     linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] dt-bindings: gpio: mpfs-gpio: allow parsing of hog child nodes.

From: Conor Dooley <conor.dooley@...rochip.com>

The SD card and eMMC on PolarFire SoC based dev boards are sometimes
statically muxed using a GPIO. To facilitate this, enable gpio-hog
child node properties.

Signed-off-by: Conor Dooley <conor.dooley@...rochip.com>
---
 .../bindings/gpio/microchip,mpfs-gpio.yaml     | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml b/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml
index 110651eafa70..6704a7a52cd0 100644
--- a/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml
@@ -44,6 +44,24 @@ properties:
 
   gpio-controller: true
 
+patternProperties:
+  "^.+-hog(?:-[0-9]+)?$":
+    type: object
+
+    properties:
+      gpio-hog: true
+      gpios: true
+      input: true
+      output-high: true
+      output-low: true
+      line-name: true
+
+    required:
+      - gpio-hog
+      - gpios
+
+    additionalProperties: false
+
 required:
   - compatible
   - reg
-- 
2.37.1