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dt-bindings: i2c: rk3x: add support for rk3399

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The bus clock and function clock are separated at rk3399,
and others use one clock as the bus clock and function clock.

Signed-off-by: David Wu <david.wu@rock-chips.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
David Wu 2016-05-16 22:04:12 +08:00 committed by Wolfram Sang
parent b58fd3be40
commit 908dbd5391
1 changed files with 13 additions and 3 deletions
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16
Documentation/devicetree/bindings/i2c/i2c-rk3x.txt
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@ -6,10 +6,20 @@ RK3xxx SoCs.
Required properties :
- reg : Offset and length of the register set for the device
- compatible : should be "rockchip,rk3066-i2c", "rockchip,rk3188-i2c",
"rockchip,rk3228-i2c" or "rockchip,rk3288-i2c".
- compatible: should be one of the following:
- "rockchip,rk3066-i2c": for rk3066
- "rockchip,rk3188-i2c": for rk3188
- "rockchip,rk3228-i2c": for rk3228
- "rockchip,rk3288-i2c": for rk3288
- "rockchip,rk3399-i2c": for rk3399
- interrupts : interrupt number
- clocks : parent clock
- clocks: See ../clock/clock-bindings.txt
- For older hardware (rk3066, rk3188, rk3228, rk3288):
- There is one clock that's used both to derive the functional clock
for the device and as the bus clock.
- For newer hardware (rk3399): specified by name
- "i2c": This is used to derive the functional clock.
- "pclk": This is the bus clock.
Required on RK3066, RK3188 :