linux-kernel - [PATCH v3 1/3] Add compatible strings for AST2700 pinctrl to the SCU binding.

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Message-ID: <20260120-upstream_pinctrl-v3-1-868fbf8413b5@aspeedtech.com>
Date: Tue, 20 Jan 2026 19:43:05 +0800
From: Billy Tsai <billy_tsai@...eedtech.com>
To: Lee Jones <lee@...nel.org>, Rob Herring <robh@...nel.org>, "Krzysztof
 Kozlowski" <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, "Joel
 Stanley" <joel@....id.au>, Andrew Jeffery <andrew@...econstruct.com.au>,
	"Linus Walleij" <linusw@...nel.org>, Billy Tsai <billy_tsai@...eedtech.com>,
	"Bartosz Golaszewski" <brgl@...nel.org>
CC: Andrew Jeffery <andrew@...id.au>, <devicetree@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-aspeed@...ts.ozlabs.org>,
	<linux-kernel@...r.kernel.org>, <openbmc@...ts.ozlabs.org>,
	<linux-gpio@...r.kernel.org>, <bmc-sw@...eedtech.com>
Subject: [PATCH v3 1/3] Add compatible strings for AST2700 pinctrl to the
 SCU binding.

AST2700 consists of two interconnected SoC instances. Each SoC has
its own pinctrl register block, which needs to be described
independently in the device tree.

Introduce "aspeed,ast2700-soc0-pinctrl" for the SoC0 pinctrl, which
follows the same usage model as the existing AST2600 pinctrl.

The SoC1 pinctrl registers follow a regular and predictable layout,
which allows describing them using an existing generic pinctrl
binding without introducing a new SoC-specific compatible string.

Signed-off-by: Billy Tsai <billy_tsai@...eedtech.com>
---
 Documentation/devicetree/bindings/mfd/aspeed,ast2x00-scu.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/mfd/aspeed,ast2x00-scu.yaml b/Documentation/devicetree/bindings/mfd/aspeed,ast2x00-scu.yaml
index da1887d7a8fe..ff6cf8f63cbc 100644
--- a/Documentation/devicetree/bindings/mfd/aspeed,ast2x00-scu.yaml
+++ b/Documentation/devicetree/bindings/mfd/aspeed,ast2x00-scu.yaml
@@ -87,6 +87,7 @@ patternProperties:
             - aspeed,ast2400-pinctrl
             - aspeed,ast2500-pinctrl
             - aspeed,ast2600-pinctrl
+            - aspeed,ast2700-soc0-pinctrl
 
     required:
       - compatible

-- 
2.34.1