[PATCH v10 6/8] dt-bindings: i2c: rk3x: add support for rk3399
david.wu at rock-chips.com
Mon May 16 07:04:12 PDT 2016
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 at rock-chips.com>
Reviewed-by: Douglas Anderson <dianders at chromium.org>
Reviewed-by: Heiko Stuebner <heiko at sntech.de>
Tested-by: Heiko Stuebner <heiko at sntech.de>
Change in v10:
Change in v9:
- remove unnecessary "REQUIRED".
Change in v8:
- remove error description.
Documentation/devicetree/bindings/i2c/i2c-rk3x.txt | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/i2c/i2c-rk3x.txt b/Documentation/devicetree/bindings/i2c/i2c-rk3x.txt
index 0b4a85f..bbc5a1e 100644
@@ -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 :
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