From df8dcac8a380147e02582c25016406cfe6bba56e Mon Sep 17 00:00:00 2001 From: Alexander Kochetkov Date: Tue, 27 Mar 2018 17:52:26 +0300 Subject: dm: i2c: dts: Add gpios and pinctrl device tree properties The commit describe usage of gpios and pinctrl device tree properties in order to enable gpio-based software deblocking. Signed-off-by: Alexander Kochetkov --- doc/device-tree-bindings/i2c/i2c.txt | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'doc') diff --git a/doc/device-tree-bindings/i2c/i2c.txt b/doc/device-tree-bindings/i2c/i2c.txt index ea918dd..de818d4 100644 --- a/doc/device-tree-bindings/i2c/i2c.txt +++ b/doc/device-tree-bindings/i2c/i2c.txt @@ -12,6 +12,11 @@ property which allows the chip offset length to be selected. Optional properties: - u-boot,i2c-offset-len - length of chip offset in bytes. If omitted the default value of 1 is used. +- gpios = , ; + pinctrl-names = "default", "gpio"; + pinctrl-0 = <&i2c_xfer>; + pinctrl-1 = <&i2c_gpio>; + Pin description for I2C bus software deblocking. Example @@ -26,3 +31,11 @@ i2c4: i2c@12ca0000 { ec-interrupt = <&gpx1 6 GPIO_ACTIVE_LOW>; }; }; + +&i2c1 { + pinctrl-names = "default", "gpio"; + pinctrl-0 = <&i2c1_xfer>; + pinctrl-1 = <&i2c1_gpio>; + gpios = <&gpio1 26 GPIO_ACTIVE_LOW>, /* SDA */ + <&gpio1 27 GPIO_ACTIVE_LOW>; /* SCL */ +}; -- cgit v1.1