diff mbox series

[v2,09/10] dt-bindings: pinctrl: mediatek,mt6779-pinctrl: Document MT6735 pin controller bindings

Message ID 20221005174343.24240-10-y.oudjana@protonmail.com
State New
Headers show
Series MediaTek pinctrl DT binding cleanup and MT6735 pinctrl support | expand

Commit Message

Yassine Oudjana Oct. 5, 2022, 5:43 p.m. UTC 
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>
---
 .../pinctrl/mediatek,mt6779-pinctrl.yaml      | 41 +++++++++++++++++++
 1 file changed, 41 insertions(+)

Comments

Rob Herring Oct. 6, 2022, 7:32 p.m. UTC | #1 
On Wed, 05 Oct 2022 20:43:42 +0300, Yassine Oudjana wrote:
> 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>
> ---
>  .../pinctrl/mediatek,mt6779-pinctrl.yaml      | 41 +++++++++++++++++++
>  1 file changed, 41 insertions(+)
> 

Reviewed-by: Rob Herring <robh@kernel.org>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/pinctrl/mediatek,mt6779-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/mediatek,mt6779-pinctrl.yaml
index f10d1d5543cb..66a0178caa8e 100644
--- a/Documentation/devicetree/bindings/pinctrl/mediatek,mt6779-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/mediatek,mt6779-pinctrl.yaml
@@ -18,6 +18,8 @@  description:
 properties:
   compatible:
     enum:
+      - mediatek,mt6735-pinctrl
+      - mediatek,mt6735m-pinctrl
       - mediatek,mt6765-pinctrl
       - mediatek,mt6779-pinctrl
       - mediatek,mt6795-pinctrl
@@ -61,6 +63,29 @@  required:
 
 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
   - if:
       properties:
         compatible:
@@ -185,6 +210,22 @@  patternProperties:
               }
             };
           };
+          The MTK_PIN_NO macro can also be used to select a pin and specify
+          a function index:
+          pincontroller {
+            /* Pin 19 set to function 0 (multifunction GPIO) */
+            gpio-pins {
+              pins {
+                pinmux = <(MTK_PIN_NO(19) | 0)>;
+              };
+            };
+            /* Pin 172 set to function 1 (primary function) */
+            msdc1-pins {
+              pins-cmd {
+                pinmux = <(MTK_PIN_NO(172) | 1)>;
+              };
+            };
+          };
         $ref: "pinmux-node.yaml"
 
         properties: