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dt-bindings: add binding document for Rockchip pvtm

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This patch documents the Rockchip pvtm device tree binding.

Change-Id: I7edcd1d57ff2852eb6e6897680566abb7f9e76a9
Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
This commit is contained in:
Finley Xiao
2016-11-03 20:48:17 +08:00
parent e2157f4f10
commit 418b0dbdc4
1 changed files with 33 additions and 0 deletions
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Documentation/devicetree/bindings/soc/rockchip/rockchip-pvtm.txt Normal file
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Rockchip pvtm device tree bindings
----------------------------------
The Process-Voltage-Temperature Monitor (PVTM) is used to monitor the chip
performance variance caused by chip process, voltage and temperature.
Required properties:
- compatible: Should be one of the following.
- "rockchip,rk3366-pvtm" - for RK3366 SoCs.
- "rockchip,rk3366-pmu-pvtm" - for RK3366 SoCs.
- "rockchip,rk3399-pvtm" - for RK3399 SoCs.
- "rockchip,rk3399-pmu-pvtm" - for RK3399 SoCs.
- clocks: list of the clock controller input clock identifiers.
- clock-names: list of the clock controller input clock names.
Example:
grf: syscon@ff770000 {
compatible = "rockchip,rk3399-grf", "syscon", "simple-mfd";
reg = <0x0 0xff770000 0x0 0x10000>;
#address-cells = <1>;
#size-cells = <1>;
...
pvtm: pvtm {
compatible = "rockchip,rk3399-pvtm";
clocks = <&cru SCLK_PVTM_CORE_L>, <&cru SCLK_PVTM_CORE_B>,
<&cru SCLK_PVTM_GPU>, <&cru SCLK_PVTM_DDR>;
clock-names = "core_l", "core_b", "gpu", "ddr";
};
}