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From:   Charles Mirabile <cmirabil@redhat.com>
To:     linux-kernel@vger.kernel.org
Cc:     Charles Mirabile <cmirabil@redhat.com>,
        Lee Jones <lee.jones@linaro.org>,
        Rob Herring <robh+dt@kernel.org>, devicetree@vger.kernel.org,
        Serge Schneider <serge@raspberrypi.org>,
        Stefan Wahren <stefan.wahren@i2se.com>,
        Nicolas Saenz Julienne <nsaenzju@redhat.com>,
        linux-rpi-kernel@lists.infradead.org, fedora-rpi@googlegroups.com,
        Mwesigwa Guma <mguma@redhat.com>,
        Joel Savitz <jsavitz@redhat.com>
Subject: [PATCH 4/5] Documentation: bindings/mfd: sensehat: Raspberry Pi Sense HAT device tree binding
Date:   Fri, 29 Oct 2021 17:55:15 -0400
Message-Id: <20211029215516.801593-5-cmirabil@redhat.com>
In-Reply-To: <20211029215516.801593-1-cmirabil@redhat.com>
References: <20211029215516.801593-1-cmirabil@redhat.com>
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This patch adds the device tree binding
for the Sense HAT in yaml form.

Signed-off-by: Charles Mirabile <cmirabil@redhat.com>
Signed-off-by: Mwesigwa Guma <mguma@redhat.com>
Signed-off-by: Joel Savitz <jsavitz@redhat.com>
---
 .../bindings/mfd/raspberrypi,sensehat.yaml    | 50 +++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/raspberrypi,sensehat.yaml

diff --git a/Documentation/devicetree/bindings/mfd/raspberrypi,sensehat.yaml b/Documentation/devicetree/bindings/mfd/raspberrypi,sensehat.yaml
new file mode 100644
index 000000000000..e00cd02a3752
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/raspberrypi,sensehat.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+$id: http://devicetree.org/schemas/mfd/raspberrypi,sensehat.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Raspberry Pi Sensehat
+
+maintainers:
+  - Charles Mirabile <cmirabil@redhat.com>
+  - Mwesigwa Guma <mguma@redhat.com>
+  - Joel Savitz <jsavitz@redhat.com>
+
+description: |
+  The Raspberry Pi Sensehat is an addon board originally developed
+  for the Raspberry Pi that has a joystick and an 8x8 RGB LED display
+  as well as several environmental sensors. It connects via i2c and
+  a gpio for irq.
+
+properties:
+  compatible:
+    oneOf:
+      - enum:
+        - raspberrypi,sensehat
+        - rpi,rpisense
+
+  reg:
+    items:
+      - description: i2c bus address
+
+  keys-int-gpios:
+    items:
+      - description: gpio pin for joystick interrupt
+
+required:
+  - compatible
+  - reg
+  - keys-int-gpios
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+      sensehat@46 {
+        compatible = "raspberrypi,sensehat";
+        reg = <0x46>;
+        keys-int-gpios = <&gpio 23 GPIO_ACTIVE_HIGH>;
+      };
+    };
-- 
2.31.1