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Message-ID: <422ffe93-e390-7379-70ad-e56f73e1da44@quicinc.com>
Date:   Tue, 4 Jul 2023 17:26:18 +0530
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Subject: Re: [PATCH] arm64: dts: qcom: qdu1000: Add reserved gpio list
Content-Language: en-US
To:     Konrad Dybcio <konrad.dybcio@linaro.org>, <agross@kernel.org>,
        <andersson@kernel.org>, <robh+dt@kernel.org>,
        <krzysztof.kozlowski+dt@linaro.org>, <conor+dt@kernel.org>
CC:     <linux-arm-msm@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>
References: <20230704102224.25052-1-quic_kbajaj@quicinc.com>
 <1c6bebd3-6799-5df5-fa46-25e1b7cfd60a@linaro.org>
From:   Komal Bajaj <quic_kbajaj@quicinc.com>
In-Reply-To: <1c6bebd3-6799-5df5-fa46-25e1b7cfd60a@linaro.org>
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On 7/4/2023 4:38 PM, Konrad Dybcio wrote:
> On 4.07.2023 12:22, Komal Bajaj wrote:
>> Add reserved gpio list for QDU1000 and QRU1000 SoCs
>> which will not be used by HLOS.
>>
>> Signed-off-by: Komal Bajaj <quic_kbajaj@quicinc.com>
>> ---
> Generally such changes to board files are split into per-board
> commits.

Sure, will split into per-board commits.

>
> Can you explain why these GPIOs will be inaccessible? Some secure
> I2C peripheral, I'd guess?

These GPIOs are needed by Modem subsystem.

Thanks
Komal

>
> Konrad
>>   arch/arm64/boot/dts/qcom/qdu1000-idp.dts | 4 ++++
>>   arch/arm64/boot/dts/qcom/qru1000-idp.dts | 4 ++++
>>   2 files changed, 8 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/qdu1000-idp.dts b/arch/arm64/boot/dts/qcom/qdu1000-idp.dts
>> index 1d22f87fd238..0496e87ddfd5 100644
>> --- a/arch/arm64/boot/dts/qcom/qdu1000-idp.dts
>> +++ b/arch/arm64/boot/dts/qcom/qdu1000-idp.dts
>> @@ -471,6 +471,10 @@ &sdhc {
>>   	status = "okay";
>>   };
>>   
>> +&tlmm {
>> +	gpio-reserved-ranges = <28 2>;
>> +};
>> +
>>   &uart7 {
>>   	status = "okay";
>>   };
>> diff --git a/arch/arm64/boot/dts/qcom/qru1000-idp.dts b/arch/arm64/boot/dts/qcom/qru1000-idp.dts
>> index 2cc893ae4d10..80dadd2f30a3 100644
>> --- a/arch/arm64/boot/dts/qcom/qru1000-idp.dts
>> +++ b/arch/arm64/boot/dts/qcom/qru1000-idp.dts
>> @@ -448,6 +448,10 @@ &qupv3_id_0 {
>>   	status = "okay";
>>   };
>>   
>> +&tlmm {
>> +	gpio-reserved-ranges = <28 2>;
>> +};
>> +
>>   &uart7 {
>>   	status = "okay";
>>   };