linux-kernel - [PATCH] dt-bindings: i2c: at91: fix example for scl-gpios

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Date:   Fri, 4 Jun 2021 15:24:38 +0200
From:   <nicolas.ferre@...rochip.com>
To:     <linux-arm-kernel@...ts.infradead.org>,
        Rob Herring <rob.herring@...xeda.com>,
        Codrin Ciubotariu <codrin.ciubotariu@...rochip.com>
CC:     <linux-kernel@...r.kernel.org>,
        Ludovic Desroches <ludovic.desroches@...rochip.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        <devicetree@...r.kernel.org>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>
Subject: [PATCH] dt-bindings: i2c: at91: fix example for scl-gpios

From: Nicolas Ferre <nicolas.ferre@...rochip.com>

The SCL gpio pin used by I2C bus for recovery needs to be configured as
open drain, so fix the binding example accordingly.
In relation with fix c5a283802573 ("ARM: dts: at91: Configure I2C SCL
gpio as open drain").

Signed-off-by: Nicolas Ferre <nicolas.ferre@...rochip.com>
Fixes: 19e5cef058a0 ("dt-bindings: i2c: at91: document optional bus recovery properties")
---
 Documentation/devicetree/bindings/i2c/i2c-at91.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/i2c/i2c-at91.txt b/Documentation/devicetree/bindings/i2c/i2c-at91.txt
index 96c914e048f5..2015f50aed0f 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-at91.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-at91.txt
@@ -73,7 +73,7 @@ i2c0: i2c@...34600 {
 	pinctrl-0 = <&pinctrl_i2c0>;
 	pinctrl-1 = <&pinctrl_i2c0_gpio>;
 	sda-gpios = <&pioA 30 GPIO_ACTIVE_HIGH>;
-	scl-gpios = <&pioA 31 GPIO_ACTIVE_HIGH>;
+	scl-gpios = <&pioA 31 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
 
 	wm8731: wm8731@1a {
 		compatible = "wm8731";
-- 
2.31.1