linux-kernel - [PATCH v3 2/4] dt-bindings: pinctrl: spacemit: add K3 SoC support

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Message-Id: <20260102-02-k3-pinctrl-v3-2-30aa104e2847@gentoo.org>
Date: Fri, 02 Jan 2026 15:00:23 +0800
From: Yixun Lan <dlan@...too.org>
To: Linus Walleij <linusw@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: Troy Mitchell <troy.mitchell@...ux.spacemit.com>, 
 linux-gpio@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-riscv@...ts.infradead.org, spacemit@...ts.linux.dev, 
 linux-kernel@...r.kernel.org, Yixun Lan <dlan@...too.org>
Subject: [PATCH v3 2/4] dt-bindings: pinctrl: spacemit: add K3 SoC support

Add new compatible string for SpacemiT K3 SoC, the pinctrl IP shares
almost same logic with previous K1 generation, but has different register
offset and pin configuration, for example the drive strength and
schmitter trigger settings has been changed.

Signed-off-by: Yixun Lan <dlan@...too.org>
---
 .../devicetree/bindings/pinctrl/spacemit,k1-pinctrl.yaml       | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pinctrl/spacemit,k1-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/spacemit,k1-pinctrl.yaml
index 609d7db97822..9a76cffcbaee 100644
--- a/Documentation/devicetree/bindings/pinctrl/spacemit,k1-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/spacemit,k1-pinctrl.yaml
@@ -11,7 +11,9 @@ maintainers:
 
 properties:
   compatible:
-    const: spacemit,k1-pinctrl
+    enum:
+      - spacemit,k1-pinctrl
+      - spacemit,k3-pinctrl
 
   reg:
     items:
@@ -81,6 +83,12 @@ patternProperties:
               - enum: [ 7, 10, 13, 16, 19, 23, 26, 29 ]
                 description: For K1 SoC, 3.3V voltage output
 
+              - enum: [ 2, 4, 6, 7, 9, 11, 13, 14, 21, 23, 25, 26, 28, 30, 31, 33 ]
+                description: For K3 SoC, 1.8V voltage output
+
+              - enum: [ 3, 5, 7, 9, 11, 13, 15, 17, 25, 27, 29, 31, 33, 35, 37, 38 ]
+                description: For K3 SoC, 1.8V voltage output
+
           input-schmitt:
             description: |
               typical threshold for schmitt trigger.

-- 
2.52.0