On Tue, Jan 19, 2016 at 02:32:04PM +0800, Chen Feng wrote:
index 82d2488..6de9881 100644 --- a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi +++ b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
regulators {ldo2: ldo2@a21 {regulator-compatible = "LDO2";
Why are you using the legacy regulator-compatible property? No new bindings should use this.
regulator-min-microvolt = <2500000>;regulator-max-microvolt = <3200000>;
This is broken as it misunderstands the purpose of specifying constraints. The constraints are there to say what the safe and supported configuration is on a given board, it is not possible to provide this information safely in a general include that is used by all systems using the PMIC. Specifying the maximum voltage range for the regulators is almost guaranteed to result in at least some configurations being enabled which will not work, in the worst case this may include configurations which could physically damage the system.
In general it is very unusual to include the regulators in a .dtsi since essentially all the configuration for them should be board specific.