linux-kernel - Re: [PATCH v6 5/6] arm64: dts: qcom: sm4450-qrd: mark QRD4450 reserved gpios

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Date:   Wed, 29 Nov 2023 18:44:57 +0800
From:   Tengfei Fan <quic_tengfan@...cinc.com>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>, <agross@...nel.org>,
        <andersson@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <catalin.marinas@....com>, <will@...nel.org>
CC:     <geert+renesas@...der.be>, <arnd@...db.de>,
        <neil.armstrong@...aro.org>, <dmitry.baryshkov@...aro.org>,
        <nfraprado@...labora.com>, <m.szyprowski@...sung.com>,
        <u-kumar1@...com>, <peng.fan@....com>,
        <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <quic_tsoni@...cinc.com>,
        <quic_shashim@...cinc.com>, <quic_kaushalk@...cinc.com>,
        <quic_tdas@...cinc.com>, <quic_tingweiz@...cinc.com>,
        <quic_aiquny@...cinc.com>, <kernel@...cinc.com>
Subject: Re: [PATCH v6 5/6] arm64: dts: qcom: sm4450-qrd: mark QRD4450
 reserved gpios



在 11/27/2023 1:58 PM, Tengfei Fan 写道:
> 
> 
> 在 11/18/2023 8:45 AM, Konrad Dybcio 写道:
>> On 31.10.2023 08:50, Tengfei Fan wrote:
>>> Some gpios are reserved for other subsystems, so mark these reserved
>>> gpios.
>>>
>>> Signed-off-by: Tengfei Fan <quic_tengfan@...cinc.com>
>>> ---
>>>   arch/arm64/boot/dts/qcom/sm4450-qrd.dts | 5 +++++
>>>   1 file changed, 5 insertions(+)
>>>
>>> diff --git a/arch/arm64/boot/dts/qcom/sm4450-qrd.dts 
>>> b/arch/arm64/boot/dts/qcom/sm4450-qrd.dts
>>> index bb8c58fb4267..e354bad57a9e 100644
>>> --- a/arch/arm64/boot/dts/qcom/sm4450-qrd.dts
>>> +++ b/arch/arm64/boot/dts/qcom/sm4450-qrd.dts
>>> @@ -23,6 +23,11 @@
>>>       status = "okay";
>>>   };
>>> +&tlmm {
>>> +    /* Reserved for other subsystems */
>> that much we can guess :D
>>
>> it would be very appreciated if you could do e.g.
>>
>> <0 4>, /* fingerprint scanner */
>> <136 1>; /* coffee machine trigger */
>>
>> Konrad
> Hi Konrad,
> Thank you for reviewing this patch series, I will update new patch 
> series according to your suggestion.
Hi Konrad,
Storage team discovered that gpio 136 was inaccessible due to the 
pinctrl driver issue. So new version patch series will drop gpio 136 
from this gpio-reserved-ranges node.

New version patch series:
https://lore.kernel.org/linux-arm-msm/20231129103325.24854-1-quic_tengfan@quicinc.com/
> 
> 

-- 
Thx and BRs,
Tengfei Fan