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author | Sascha Hauer <s.hauer@pengutronix.de> | 2014-06-24 20:27:16 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2014-06-24 20:27:16 +0200 |
commit | 3d2c3442e7f019d93606ffa0a15933f0f9e7742a (patch) | |
tree | 23166f0296205bc294be6840672a7a9fcfe43a30 /dts/Bindings/i2c/i2c-sunxi-p2wi.txt | |
parent | 9313920df6d3d55fbd03ce8ec1c0da9a10c29824 (diff) | |
download | barebox-3d2c3442e7f019d93606ffa0a15933f0f9e7742a.tar.gz barebox-3d2c3442e7f019d93606ffa0a15933f0f9e7742a.tar.xz |
dts: update to v3.16-rc2
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/i2c/i2c-sunxi-p2wi.txt')
-rw-r--r-- | dts/Bindings/i2c/i2c-sunxi-p2wi.txt | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/dts/Bindings/i2c/i2c-sunxi-p2wi.txt b/dts/Bindings/i2c/i2c-sunxi-p2wi.txt new file mode 100644 index 0000000000..6b765485af --- /dev/null +++ b/dts/Bindings/i2c/i2c-sunxi-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@01f03400 { + 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>; + + /* ... */ + }; + }; |