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Message-Id: <1524634571-5914-3-git-send-email-Anson.Huang@nxp.com> Date: Wed, 25 Apr 2018 13:36:08 +0800 From: Anson Huang <Anson.Huang@....com> To: shawnguo@...nel.org, kernel@...gutronix.de, fabio.estevam@....com, robh+dt@...nel.org, mark.rutland@....com, linux@...linux.org.uk Cc: Linux-imx@....com, linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH V4 3/6] ARM: dts: imx6sx-sabreauto: add IO expander max7310 support i.MX6SX Sabre Auto board has two max7310 IO expander on I2C3 bus, add support for them. Signed-off-by: Anson Huang <Anson.Huang@....com> --- no changes. arch/arm/boot/dts/imx6sx-sabreauto.dts | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/arch/arm/boot/dts/imx6sx-sabreauto.dts b/arch/arm/boot/dts/imx6sx-sabreauto.dts index d59084f..812f40b 100644 --- a/arch/arm/boot/dts/imx6sx-sabreauto.dts +++ b/arch/arm/boot/dts/imx6sx-sabreauto.dts @@ -82,6 +82,13 @@ >; }; + pinctrl_i2c3_2: i2c3grp-2 { + fsl,pins = < + MX6SX_PAD_KEY_ROW4__I2C3_SDA 0x4001b8b1 + MX6SX_PAD_KEY_COL4__I2C3_SCL 0x4001b8b1 + >; + }; + pinctrl_uart1: uart1grp { fsl,pins = < MX6SX_PAD_GPIO1_IO04__UART1_TX 0x1b0b1 @@ -272,3 +279,24 @@ }; }; }; + +&i2c3 { + clock-frequency = <100000>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2c3_2>; + status = "okay"; + + max7310_a: gpio@30 { + compatible = "maxim,max7310"; + reg = <0x30>; + gpio-controller; + #gpio-cells = <2>; + }; + + max7310_b: gpio@32 { + compatible = "maxim,max7310"; + reg = <0x32>; + gpio-controller; + #gpio-cells = <2>; + }; +}; -- 2.7.4
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