linux-kernel - [PATCH v1 1/6] dt-bindings: gpio: realtek-otto: Add rtl9300 compatible

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Message-Id: <7dfad6c63cea64ccd84907f1cf9f7c9c6d1ce3e9.1649533972.git.sander@svanheule.net>
Date:   Sat,  9 Apr 2022 21:55:46 +0200
From:   Sander Vanheule <sander@...nheule.net>
To:     linux-gpio@...r.kernel.org, devicetree@...r.kernel.org
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Sander Vanheule <sander@...nheule.net>,
        Bert Vermeulen <bert@...t.com>, linux-kernel@...r.kernel.org
Subject: [PATCH v1 1/6] dt-bindings: gpio: realtek-otto: Add rtl9300 compatible

Add the "realtek,rlt9300-gpio", "realtek,otto-gpio" compatible for GPIO
nodes on the RTL930x SoC series. This SoC requires an extra register
range, defining the interrupt CPU mapping registers.

Signed-off-by: Sander Vanheule <sander@...nheule.net>
---
 .../bindings/gpio/realtek,otto-gpio.yaml      | 33 +++++++++++++++++--
 1 file changed, 31 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/gpio/realtek,otto-gpio.yaml b/Documentation/devicetree/bindings/gpio/realtek,otto-gpio.yaml
index 100f20cebd76..3c511e9af377 100644
--- a/Documentation/devicetree/bindings/gpio/realtek,otto-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/realtek,otto-gpio.yaml
@@ -28,10 +28,10 @@ properties:
       - enum:
           - realtek,rtl8380-gpio
           - realtek,rtl8390-gpio
+          - realtek,rtl9300-gpio
       - const: realtek,otto-gpio
 
-  reg:
-    maxItems: 1
+  reg: true
 
   "#gpio-cells":
     const: 2
@@ -50,6 +50,23 @@ properties:
   interrupts:
     maxItems: 1
 
+if:
+  properties:
+    compatible:
+      contains:
+        const: realtek,rtl9300-gpio
+then:
+  properties:
+    reg:
+      items:
+        - description: GPIO and interrupt control
+        - description: interrupt CPU map
+else:
+  properties:
+    reg:
+      items:
+        - description: GPIO and interrupt control
+
 required:
   - compatible
   - reg
@@ -74,5 +91,17 @@ examples:
         interrupt-parent = <&rtlintc>;
         interrupts = <23>;
       };
+  - |
+      gpio@...0 {
+        compatible = "realtek,rtl9300-gpio", "realtek,otto-gpio";
+        reg = <0x3300 0x1c>, <0x3338 0x8>;
+        gpio-controller;
+        #gpio-cells = <2>;
+        ngpios = <24>;
+        interrupt-controller;
+        #interrupt-cells = <2>;
+        interrupt-parent = <&rtlintc>;
+        interrupts = <13>;
+      };
 
 ...
-- 
2.35.1