On Wed, 2013-03-20 at 00:42 +0800, Stephen Warren wrote:
> On 03/18/2013 02:09 AM, Joseph Lo wrote:
> > The clock source of PMC is PCLK. Adding it into DTS for Tegra20 and Tegra30.
>
> > diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
>
> > pmc {
> > compatible = "nvidia,tegra20-pmc";
> > reg = <0x7000e400 0x400>;
> > + clocks = <&tegra_car 110>;
> > };
>
> The DT binding documentation needs to list the set of clocks that must
> be present.
>
> Doesn't the PMC also receive a "clk32k_in" from the PMIC, or is that
> routed into the CAR, and then into the PMC? Either way, the PMC module
> receives that clock somehow. Since there are multiple clocks, that also
> means that a clock-names property is required.
Do you mean the DTS below and add it into binding document?
/ SoC dts including file
pmc {
compatible = "nvidia,tegra20-pmc";
reg = <0x7000e400 0x400>;
clocks = <&tegra_car 110>, <&clk32k_in>;
clock-names= "pclk", "clk32k_in";
};
/ Tegra board dts file
pmic {
...
clocks {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <0>;
clk32k_in: clock@0 {
compatible = "fixed-clock";
reg=<0>;
#clock-cells = <0>;
clock-frequency = <32768>;
};
};
};
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