linux-kernel - Re: [PATCH 04/14] arm64: dts: qcom: sdm845: Fix the min frequency of "ice_core

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Date:   Thu, 13 Jul 2023 00:30:03 -0700
From:   Eric Biggers <ebiggers@...nel.org>
To:     Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Cc:     vireshk@...nel.org, nm@...com, sboyd@...nel.org,
        myungjoo.ham@...sung.com, kyungmin.park@...sung.com,
        cw00.choi@...sung.com, andersson@...nel.org,
        konrad.dybcio@...aro.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        quic_asutoshd@...cinc.com, quic_cang@...cinc.com,
        quic_nitirawa@...cinc.com, quic_narepall@...cinc.com,
        quic_bhaskarv@...cinc.com, quic_richardp@...cinc.com,
        quic_nguyenb@...cinc.com, quic_ziqichen@...cinc.com,
        bmasney@...hat.com, krzysztof.kozlowski@...aro.org
Subject: Re: [PATCH 04/14] arm64: dts: qcom: sdm845: Fix the min frequency of
 "ice_core_clk"

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@...aro.org>
> ---
>  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@...4000 {
>  				<0 0>,
>  				<0 0>,
>  				<0 0>,
> -				<0 300000000>;
> +				<75000000 300000000>;

Thanks for fixing this!  What was the visible effect of this bug, if any?
Do you know why the minimum has that particular value?

The Fixes tag is wrong; it should be:

Fixes: 433f9a57298f ("arm64: dts: sdm845: add Inline Crypto Engine registers and clock")

- Eric