linux-kernel - [PATCH] dt-bindings: gpio: add common consumer GPIO lines

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Message-Id: <20220315083723.97822-1-krzysztof.kozlowski@canonical.com>
Date:   Tue, 15 Mar 2022 09:37:23 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Subject: [PATCH] dt-bindings: gpio: add common consumer GPIO lines

Typical GPIO lines like enable, powerdown, reset or wakeup are not
documented as common, which leads to new variations of these (e.g.
pwdn-gpios).  Add a common schema which serves also as a documentation
for preferred naming.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
---
 .../bindings/gpio/gpio-consumer-common.yaml   | 36 +++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/gpio/gpio-consumer-common.yaml

diff --git a/Documentation/devicetree/bindings/gpio/gpio-consumer-common.yaml b/Documentation/devicetree/bindings/gpio/gpio-consumer-common.yaml
new file mode 100644
index 000000000000..098dc913f9e5
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-consumer-common.yaml
@@ -0,0 +1,36 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/gpio-consumer-common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Common GPIO lines
+
+maintainers:
+  - Bartosz Golaszewski <brgl@...ev.pl>
+  - Linus Walleij <linus.walleij@...aro.org>
+
+# do not select this schema for GPIO hogs
+select:
+  properties:
+    gpio-hog: false
+
+properties:
+  enable-gpios:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+
+  reset-gpios:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+
+  powerdown-gpios:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+
+  pwdn-gpios:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    description: Use powerdown-gpios
+    deprecated: true
+
+  wakeup-gpios:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+
+additionalProperties: true
-- 
2.32.0