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From:   Linus Walleij <linus.walleij@linaro.org>
Date:   Sun, 07 May 2023 23:19:19 +0200
Subject: [PATCH v3 1/2] dt-bindings: gpio: Add STMPE YAML DT schema
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Message-Id: <20230426-stmpe-dt-bindings-v3-1-eac1d736e488@linaro.org>
References: <20230426-stmpe-dt-bindings-v3-0-eac1d736e488@linaro.org>
In-Reply-To: <20230426-stmpe-dt-bindings-v3-0-eac1d736e488@linaro.org>
To:     Bartosz Golaszewski <brgl@bgdev.pl>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Maxime Coquelin <mcoquelin.stm32@gmail.com>,
        Alexandre Torgue <alexandre.torgue@foss.st.com>,
        Dmitry Torokhov <dmitry.torokhov@gmail.com>,
        Lee Jones <lee@kernel.org>,
        Philippe Schenker <philippe.schenker@toradex.com>,
        Stefan Agner <stefan@agner.ch>, Marek Vasut <marex@denx.de>,
        Steffen Trumtrar <s.trumtrar@pengutronix.de>
Cc:     linux-gpio@vger.kernel.org, devicetree@vger.kernel.org,
        linux-stm32@st-md-mailman.stormreply.com,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-input@vger.kernel.org,
        Linus Walleij <linus.walleij@linaro.org>
Precedence: bulk

This adds a schema for the STMPE GPIO that while it is used a
lot in the kernel tree is anyway missing its bindings.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
ChangeLog v2->v3:
- Use a compact hog node schema backed by the standard hog
  schema.
ChangeLog v1->v2:
- New patch split off from the MFD patch.
---
 .../devicetree/bindings/gpio/st,stmpe-gpio.yaml    | 51 ++++++++++++++++++++++
 1 file changed, 51 insertions(+)

diff --git a/Documentation/devicetree/bindings/gpio/st,stmpe-gpio.yaml b/Documentation/devicetree/bindings/gpio/st,stmpe-gpio.yaml
new file mode 100644
index 000000000000..41aa82b8b3eb
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/st,stmpe-gpio.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/st,stmpe-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectonics Port Expander (STMPE) GPIO Block
+
+description: STMicroelectronics Port Expander (STMPE) is a series of slow
+  bus controllers for various expanded peripherals such as GPIO, keypad,
+  touchscreen, ADC, PWM or rotator. It can contain one or several different
+  peripherals connected to SPI or I2C. These bindings pertain to the
+  GPIO portions of these expanders.
+
+maintainers:
+  - Linus Walleij <linus.walleij@linaro.org>
+
+properties:
+  compatible:
+    const: st,stmpe-gpio
+
+  "#gpio-cells":
+    const: 2
+
+  "#interrupt-cells":
+    const: 2
+
+  gpio-controller: true
+
+  interrupt-controller: true
+
+  st,norequest-mask:
+    description: A bitmask of GPIO lines that cannot be requested because for
+      for example not being connected to anything on the system
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+patternProperties:
+  "^.+-hog(-[0-9]+)?$":
+    type: object
+
+    required:
+      - gpio-hog
+
+additionalProperties: false
+
+required:
+  - compatible
+  - "#gpio-cells"
+  - "#interrupt-cells"
+  - gpio-controller
+  - interrupt-controller

-- 
2.34.1