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| author | Alexander Kochetkov <al.kochet@gmail.com> | 2018-03-27 17:52:26 +0300 |
|---|---|---|
| committer | Heiko Schocher <hs@denx.de> | 2018-04-11 11:34:17 +0200 |
| commit | df8dcac8a380147e02582c25016406cfe6bba56e (patch) | |
| tree | afd84891d7b8b03fc690f19a270270250460ffbd /doc | |
| parent | 2600df4f8ef12ece9cec13030005919e0ba2b0d5 (diff) | |
| download | u-boot-df8dcac8a380147e02582c25016406cfe6bba56e.tar.gz u-boot-df8dcac8a380147e02582c25016406cfe6bba56e.tar.xz u-boot-df8dcac8a380147e02582c25016406cfe6bba56e.zip | |
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 <al.kochet@gmail.com>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/device-tree-bindings/i2c/i2c.txt | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/i2c/i2c.txt b/doc/device-tree-bindings/i2c/i2c.txt index ea918dd61d..de818d4713 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 = <sda ...>, <scl ...>; + 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 */ +}; |