From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jisheng Zhang Subject: [PATCH v3 2/3] dt-bindings: i2c: designware: add optional pinctrl for bus recovery Date: Mon, 17 Sep 2018 11:28:30 +0800 Message-ID: <20180917112830.2a3c9be9@xhacker.debian> References: <20180917112633.252c591c@xhacker.debian> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20180917112633.252c591c@xhacker.debian> Sender: linux-kernel-owner@vger.kernel.org To: Jarkko Nikula , Andy Shevchenko , Mika Westerberg , Wolfram Sang Cc: linux-arm-kernel , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: linux-i2c@vger.kernel.org Document the pinctrl property for bus recovery. Signed-off-by: Jisheng Zhang --- Documentation/devicetree/bindings/i2c/i2c-designware.txt | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/i2c/i2c-designware.txt b/Documentation/devicetree/bindings/i2c/i2c-designware.txt index 1d6a6a8061ba..c1544d1f7b55 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-designware.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-designware.txt @@ -24,6 +24,9 @@ Optional properties : - sda-gpios: specify the gpio of the SDA line for gpio recovery + - pinctrl: add extra pinctrl to configure i2c pins to gpio function for i2c + bus recovery, call it "gpio" state + Examples : i2c@f0000 { @@ -46,6 +49,9 @@ Examples : i2c-sda-hold-time-ns = <300>; i2c-sda-falling-time-ns = <300>; i2c-scl-falling-time-ns = <300>; + pinctrl-names = "default", "gpio"; + pinctrl-0 = <&pinctrl_i2c1>; + pinctrl-1 = <&pinctrl_i2c1_gpio>; scl-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>; sda-gpios = <&gpio1 16 GPIO_ACTIVE_HIGH>; }; -- 2.19.0