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From:   Yassine Oudjana <yassine.oudjana@gmail.com>
To:     Linus Walleij <linus.walleij@linaro.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        Sean Wang <sean.wang@kernel.org>,
        Andy Teng <andy.teng@mediatek.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>
Cc:     Yassine Oudjana <y.oudjana@protonmail.com>,
        Yassine Oudjana <yassine.oudjana@gmail.com>,
        linux-mediatek@lists.infradead.org, linux-gpio@vger.kernel.org,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org, Rob Herring <robh@kernel.org>
Subject: [PATCH v4 12/13] dt-bindings: pinctrl: mediatek,mt6779-pinctrl: Document MT6735 pin controller
Date:   Fri, 28 Oct 2022 18:35:04 +0300
Message-Id: <20221028153505.23741-13-y.oudjana@protonmail.com>
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From: Yassine Oudjana <y.oudjana@protonmail.com>

Add bindings for the pin controller found on MediaTek MT6735 and
MT6735M SoCs, including describing a method to manually specify
a pin and function in the pinmux property making defining bindings
for each pin/function combination unnecessary. The pin controllers
on those SoCs are generally identical, with the only difference
being the lack of MSDC2 pins (198-203) on MT6735M.

Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
 .../pinctrl/mediatek,mt6779-pinctrl.yaml      | 55 ++++++++++++++++++-
 MAINTAINERS                                   |  6 ++
 2 files changed, 60 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pinctrl/mediatek,mt6779-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/mediatek,mt6779-pinctrl.yaml
index 88a4c4ef28e5..2c124b168bc5 100644
--- a/Documentation/devicetree/bindings/pinctrl/mediatek,mt6779-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/mediatek,mt6779-pinctrl.yaml
@@ -10,6 +10,7 @@ maintainers:
   - Andy Teng <andy.teng@mediatek.com>
   - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
   - Sean Wang <sean.wang@kernel.org>
+  - Yassine Oudjana <y.oudjana@protonmail.com>
 
 description:
   The MediaTek pin controller on MT6779 is used to control pin
@@ -18,6 +19,8 @@ description:
 properties:
   compatible:
     enum:
+      - mediatek,mt6735-pinctrl
+      - mediatek,mt6735m-pinctrl
       - mediatek,mt6765-pinctrl
       - mediatek,mt6779-pinctrl
       - mediatek,mt6795-pinctrl
@@ -151,6 +154,42 @@ patternProperties:
 
 allOf:
   - $ref: "pinctrl.yaml#"
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - mediatek,mt6735-pinctrl
+              - mediatek,mt6735m-pinctrl
+    then:
+      properties:
+        reg:
+          minItems: 8
+          maxItems: 8
+
+        reg-names:
+          items:
+            - const: gpio
+            - const: iocfg0
+            - const: iocfg1
+            - const: iocfg2
+            - const: iocfg3
+            - const: iocfg4
+            - const: iocfg5
+            - const: eint
+
+        interrupts:
+          items:
+            - description: EINT interrupt
+
+        patternProperties:
+        '-pins$':
+          patternProperties:
+            '^pins':
+              properties:
+                drive-strength:
+                  enum: [1, 2, 4, 8, 16]
+
   - if:
       properties:
         compatible:
@@ -349,18 +388,32 @@ examples:
             };
 
             /* GPIO0 set as multifunction GPIO0 */
-            gpio-pins {
+            gpio0-pins {
                 pins {
                     pinmux = <PINMUX_GPIO0__FUNC_GPIO0>;
                 };
             };
 
+            /* GPIO1 set to function 0 (GPIO) */
+            gpio1-pins {
+                pins {
+                    pinmux = <(MTK_PIN_NO(1) | 0)>;
+                };
+            };
+
             /* GPIO52 set as multifunction SDA0 */
             i2c0-pins {
                 pins {
                   pinmux = <PINMUX_GPIO52__FUNC_SDA0>;
                 };
             };
+
+            /* GPIO62 set to function 1 (primary function) */
+            i2c1-pins {
+                pins {
+                    pinmux = <(MTK_PIN_NO(62) | 1)>;
+                };
+            };
         };
 
         mmc0 {
diff --git a/MAINTAINERS b/MAINTAINERS
index 4fd8037263d9..ba5ac4422f00 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -16314,6 +16314,12 @@ F:	Documentation/devicetree/bindings/pinctrl/mediatek,mt7622-pinctrl.yaml
 F:	Documentation/devicetree/bindings/pinctrl/mediatek,mt8183-pinctrl.yaml
 F:	drivers/pinctrl/mediatek/
 
+PIN CONTROLLER - MEDIATEK MT6735
+M:	Yassine Oudjana <y.oudjana@protonmail.com>
+L:	linux-mediatek@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+F:	Documentation/devicetree/bindings/pinctrl/mediatek,mt6779-pinctrl.yaml
+
 PIN CONTROLLER - MICROCHIP AT91
 M:	Ludovic Desroches <ludovic.desroches@microchip.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-- 
2.38.1