linux-kernel - [PATCH v5 03/14] dt-bindings: iio: adc: ad7768-1: Document GPIO controller

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Message-ID: <a6c482b9490b9cf3ce51eed922004797a0305d27.1744325346.git.Jonathan.Santos@analog.com>
Date: Fri, 11 Apr 2025 12:56:29 -0300
From: Jonathan Santos <Jonathan.Santos@...log.com>
To: <linux-iio@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-gpio@...r.kernel.org>
CC: Jonathan Santos <Jonathan.Santos@...log.com>, <lars@...afoo.de>,
        <Michael.Hennerich@...log.com>, <marcelo.schmitt@...log.com>,
        <jic23@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>, <marcelo.schmitt1@...il.com>,
        <linus.walleij@...aro.org>, <brgl@...ev.pl>, <lgirdwood@...il.com>,
        <broonie@...nel.org>, <jonath4nns@...il.com>, <dlechner@...libre.com>,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH v5 03/14] dt-bindings: iio: adc: ad7768-1: Document GPIO controller

The AD7768-1 ADC exports four bidirectional GPIOs accessible
via register map.

Document GPIO properties necessary to enable GPIO controller for this
device.

Acked-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
Reviewed-by: Rob Herring (Arm) <robh@...nel.org>
Signed-off-by: Jonathan Santos <Jonathan.Santos@...log.com>
---
v5 Changes:
* none.

v4 Changes:
* none.

v3 Changes:
* none.

v2 Changes:
* New patch in v2.
---
 .../devicetree/bindings/iio/adc/adi,ad7768-1.yaml      | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml
index 4c58dbe8f749..6b318f05a69f 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml
@@ -89,6 +89,14 @@ properties:
       3 = DRDY pin acting as SPI offload trigger
     const: 1
 
+  gpio-controller: true
+
+  "#gpio-cells":
+    const: 2
+    description: |
+      The first cell is for the GPIO number: 0 to 3.
+      The second cell takes standard GPIO flags.
+
 required:
   - compatible
   - reg
@@ -136,6 +144,8 @@ examples:
             spi-max-frequency = <2000000>;
             spi-cpol;
             spi-cpha;
+            gpio-controller;
+            #gpio-cells = <2>;
             vref-supply = <&adc_vref>;
             interrupts = <25 IRQ_TYPE_EDGE_RISING>;
             interrupt-parent = <&gpio>;
-- 
2.34.1