Re: [PATCH v3 5/6] dts: ipq4019: Add support for IPQ4019 DK01 board
From: Stephen Boyd
Date: Thu Feb 18 2016 - 21:43:57 EST
On 02/16, Matthew McClintock wrote:
> On Feb 8, 2016, at 4:43 PM, Stephen Boyd <sboyd@xxxxxxxxxxxxxx> wrote:
> >
> > On 11/19, Matthew McClintock wrote:
> >> +
> >> +/ {
> >> + model = "Qualcomm Technologies, Inc. IPQ4019/AP-DK01.1";
> >> + compatible = "qcom,ipq4019";
> >> +
> >> + clocks {
> >> + xo: xo {
> >> + compatible = "fixed-clock";
> >> + clock-frequency = <48000000>;
> >> + #clock-cells = <0>;
> >> + };
> >> + };
> >
> > Is there a reason the xo is here and the sleep clk is in the SoC
> > dtsi file? Both are board clocks so I would think they would be
> > added in the same place.
>
> Iâm a little bit confused and I wanted to confirm. I can see the xo clock is on the board itself. However, the sleep_clk is not, can you clarify why they would both be in the same place?
>
The sleep clk is typically a pin on the SoC package. Look at your
schematic. Same goes for the XO.
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