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author | Wolfram Sang <wsa@the-dreams.de> | 2019-03-22 00:04:22 +0100 |
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committer | Wolfram Sang <wsa@the-dreams.de> | 2019-03-27 14:20:20 +0100 |
commit | 45dfceb0d14a06eeffe22581eb2996f4ed5225ca (patch) | |
tree | c2c55607f2ebb2b41b71e474b00010e9ad702e70 /Documentation/devicetree/bindings/i2c/i2c-sun6i-p2wi.txt | |
parent | i2c: stu300: make bindings file name match the driver (diff) | |
download | linux-dev-45dfceb0d14a06eeffe22581eb2996f4ed5225ca.tar.xz linux-dev-45dfceb0d14a06eeffe22581eb2996f4ed5225ca.zip |
i2c: sun6i-p2wi: make bindings file name match the driver
If we use the "i2c-" prefix for the binding documentation file name,
then it should match the file name of the driver, if possible. It is
possible for this driver, so rename it.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Diffstat (limited to 'Documentation/devicetree/bindings/i2c/i2c-sun6i-p2wi.txt')
-rw-r--r-- | Documentation/devicetree/bindings/i2c/i2c-sun6i-p2wi.txt | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-sun6i-p2wi.txt b/Documentation/devicetree/bindings/i2c/i2c-sun6i-p2wi.txt new file mode 100644 index 000000000000..49df0053347a --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-sun6i-p2wi.txt @@ -0,0 +1,41 @@ + +* Allwinner P2WI (Push/Pull 2 Wire Interface) controller + +Required properties : + + - reg : Offset and length of the register set for the device. + - compatible : Should one of the following: + - "allwinner,sun6i-a31-p2wi" + - interrupts : The interrupt line connected to the P2WI peripheral. + - clocks : The gate clk connected to the P2WI peripheral. + - resets : The reset line connected to the P2WI peripheral. + +Optional properties : + + - clock-frequency : Desired P2WI bus clock frequency in Hz. If not set the +default frequency is 100kHz + +A P2WI may contain one child node encoding a P2WI slave device. + +Slave device properties: + Required properties: + - reg : the I2C slave address used during the initialization + process to switch from I2C to P2WI mode + +Example: + + p2wi@1f03400 { + compatible = "allwinner,sun6i-a31-p2wi"; + reg = <0x01f03400 0x400>; + interrupts = <0 39 4>; + clocks = <&apb0_gates 3>; + clock-frequency = <6000000>; + resets = <&apb0_rst 3>; + + axp221: pmic@68 { + compatible = "x-powers,axp221"; + reg = <0x68>; + + /* ... */ + }; + }; |