Re: [PATCH 04/14] arm64: dts: qcom: sdm845: Fix the min frequency of "ice_core_clk"

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On Thu, Jul 13, 2023 at 12:30:03AM -0700, Eric Biggers wrote:
> On Wed, Jul 12, 2023 at 04:01:59PM +0530, Manivannan Sadhasivam wrote:
> > Minimum frequency of the "ice_core_clk" should be 75MHz as specified in the
> > downstream vendor devicetree. So fix it!
> > 
> > https://git.codelinaro.org/clo/la/kernel/msm-4.9/-/blob/LA.UM.7.3.r1-09300-sdm845.0/arch/arm64/boot/dts/qcom/sdm845.dtsi
> > 
> > Fixes: cc16687fbd74 ("arm64: dts: qcom: sdm845: add UFS controller")
> > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
> > ---
> >  arch/arm64/boot/dts/qcom/sdm845.dtsi | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> > index 9ed74bf72d05..89520a9fe1e3 100644
> > --- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> > @@ -2614,7 +2614,7 @@ ufs_mem_hc: ufshc@1d84000 {
> >  				<0 0>,
> >  				<0 0>,
> >  				<0 0>,
> > -				<0 300000000>;
> > +				<75000000 300000000>;
> 
> Thanks for fixing this!  What was the visible effect of this bug, if any?

No, this was just based on inspection.

> Do you know why the minimum has that particular value?
> 

Min and max frequencies come from the Qcom's internal documentation where they
have calculated the freq range based on RPMh performance states.

> The Fixes tag is wrong; it should be:
> 
> Fixes: 433f9a57298f ("arm64: dts: sdm845: add Inline Crypto Engine registers and clock")
> 

Yikes! Thanks for noticing, will fix it.

- Mani

> - Eric

-- 
மணிவண்ணன் சதாசிவம்



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