Re: [PATCH] arm64: dts: qcom: ipq8074: fix the sleep clock frequency

[Kathiravan Thirumoorthy]

On 2/25/2022 5:48 PM, Kathiravan Thirumoorthy wrote:
> On 2/25/2022 1:27 AM, Bjorn Andersson wrote:
> > On Fri 11 Feb 06:14 CST 2022, Kathiravan T wrote:
> >
> > > Sleep clock frequency should be 32768Hz. Lets fix it.
> > >
> > > Cc: stable@xxxxxxxxxxxxxxx
> > > Fixes: 41dac73e243d ("arm64: dts: Add ipq8074 SoC and HK01 board 
> > > support")
> > > Link: 
> > > https://lore.kernel.org/all/e2a447f8-6024-0369-f698-2027b6edcf9e@xxxxxxxxxxxxxx/
> > > Signed-off-by: Kathiravan T <quic_kathirav@xxxxxxxxxxx>
> > Can you please confirm this? The documentation for GCC says that the
> > incoming sleep clock is 32000Hz.
> >
> > Regards,
> > Bjorn
>
> Bjorn,
>
> I checked the internal documents and it is derived from the PMIC as 
> 32.7645KHz. I rounded off it to 32768Hz. Looks like GCC documentation 
> is not up-to-date.
>
> All these information is available in the link 
> https://lore.kernel.org/all/e2a447f8-6024-0369-f698-2027b6edcf9e@xxxxxxxxxxxxxx/
>
> Please let me know if you need any further information.
>
> Thanks,
>
> Kathiravan T.

Bjorn,

Gentle Ping.

Thanks,

Kathiravan T.

> > > ---
> > >   arch/arm64/boot/dts/qcom/ipq8074.dtsi | 2 +-
> > >   1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/arch/arm64/boot/dts/qcom/ipq8074.dtsi 
> > > b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
> > > index 26ba7ce9222c..b6287355ad08 100644
> > > --- a/arch/arm64/boot/dts/qcom/ipq8074.dtsi
> > > +++ b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
> > > @@ -13,7 +13,7 @@
> > >       clocks {
> > >           sleep_clk: sleep_clk {
> > >               compatible = "fixed-clock";
> > > -            clock-frequency = <32000>;
> > > +            clock-frequency = <32768>;
> > >               #clock-cells = <0>;
> > >           };
> > >   --
> > > 2.7.4