linux-kernel - Re: [PATCH V3 1/3] arm64: dts: sc7280: Add QSPI node

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Date:   Tue, 08 Jun 2021 13:35:49 +0530
From:   rojay@...eaurora.org
To:     Stephen Boyd <sboyd@...nel.org>
Cc:     agross@...nel.org, bjorn.andersson@...aro.org, robh+dt@...nel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Rajendra Nayak <rnayak@...eaurora.org>,
        saiprakash.ranjan@...eaurora.org, msavaliy@....qualcomm.com
Subject: Re: [PATCH V3 1/3] arm64: dts: sc7280: Add QSPI node

On 2021-06-05 03:15, Stephen Boyd wrote:
> Quoting Roja Rani Yarubandi (2021-06-04 06:54:37)
>> diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dts 
>> b/arch/arm64/boot/dts/qcom/sc7280-idp.dts
>> index 3900cfc09562..d0edffc15736 100644
>> --- a/arch/arm64/boot/dts/qcom/sc7280-idp.dts
>> +++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dts
>> @@ -268,6 +268,22 @@ pmr735b_die_temp {
>>                 };
>>  };
>> 
>> +&qspi {
>> +       status = "okay";
>> +       pinctrl-names = "default";
>> +       pinctrl-0 = <&qspi_clk>, <&qspi_cs0>, <&qspi_data01>;
>> +
>> +       flash@0 {
>> +               compatible = "jedec,spi-nor";
>> +               reg = <0>;
>> +
>> +               /* TODO: Increase frequency after testing */
> 
> Is this going to change? Please set it to 37.5MHz if that's the max
> supported.
> 

Okay, will set it to 37.5MHz.

Thanks,
Roja

>> +               spi-max-frequency = <25000000>;
>> +               spi-tx-bus-width = <2>;
>> +               spi-rx-bus-width = <2>;
>> +       };
>> +};
>> +
>>  &qupv3_id_0 {
>>         status = "okay";
>>  };