linux-kernel - Re: [PATCH v2] arm64: dts: qcom: sdm845-oneplus-common: add PN553 NFC

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Date:   Wed, 8 Mar 2023 19:20:50 +0100
From:   Gergo Koteles <soyer@....hu>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, phone-devel@...r.kernel.org
Subject: Re: [PATCH v2] arm64: dts: qcom: sdm845-oneplus-common: add PN553 NFC

On 2023. 03. 07. 20:04, Gergo Koteles wrote:
> On 2023. 03. 07. 20:02, Konrad Dybcio wrote:
>>
>>
>> On 7.03.2023 19:59, Gergo Koteles wrote:
>>> The OnePlus 6/6T both have a NQ330 (PN553 + P73N2M0).
>>> The PN533 supported by the nxp-nci-i2c driver in mainline.
>>> It detects/reads NFC tags using "nfctool".
>>>
>>> Signed-off-by: Gergo Koteles <soyer@....hu>
>>> ---
>> Next time include a changelog below this --- line detailing
>> what changed between revisions.
>>
> Okey. Thanks for the suggestion and the review.
> 
>> Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>
>>
>> Konrad
>>>   .../boot/dts/qcom/sdm845-oneplus-common.dtsi  | 39 +++++++++++++++++++
>>>   1 file changed, 39 insertions(+)
>>>
>>> diff --git a/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi 
>>> b/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
>>> index 64638ea94db7..5e45801031d8 100644
>>> --- a/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
>>> +++ b/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
>>> @@ -380,6 +380,24 @@ zap-shader {
>>>       };
>>>   };
>>> +&i2c3 {
>>> +    clock-frequency = <400000>;
>>> +    status = "okay";
>>> +
>>> +    nfc@28 {
>>> +        compatible = "nxp,nxp-nci-i2c";
>>> +        reg = <0x28>;
>>> +
>>> +        interrupts-extended = <&tlmm 63 IRQ_TYPE_EDGE_RISING>;
>>> +
>>> +        enable-gpios = <&tlmm 12 GPIO_ACTIVE_HIGH>;
>>> +        firmware-gpios = <&tlmm 62 GPIO_ACTIVE_HIGH>;
>>> +
>>> +        pinctrl-0 = <&nfc_int_active &nfc_enable_active 
>>> &nfc_firmware_active>;
>>> +        pinctrl-names = "default";
>>> +    };
>>> +};
>>> +
>>>   &i2c10 {
>>>       status = "okay";
>>>       clock-frequency = <100000>;
>>> @@ -753,6 +771,27 @@ &usb_1_hsphy {
>>>   &tlmm {
>>>       gpio-reserved-ranges = <0 4>, <81 4>;
>>> +    nfc_int_active: nfc-int-active-state {
>>> +        pins = "gpio63";
>>> +        function = "gpio";
>>> +        drive-strength = <2>;
>>> +        bias-pull-up;
>>> +    };
>>> +
>>> +    nfc_enable_active: nfc-enable-active-state {
>>> +        pins = "gpio12";
>>> +        function = "gpio";
>>> +        drive-strength = <2>;
>>> +        bias-pull-up;
>>> +    };
>>> +
>>> +    nfc_firmware_active: nfc-firmware-active-state {
>>> +        pins = "gpio62";
>>> +        function = "gpio";
>>> +        drive-strength = <2>;
>>> +        bias-pull-up;
>>> +    };
>>> +
>>>       tri_state_key_default: tri-state-key-default-state {
>>>           pins = "gpio40", "gpio42", "gpio26";
>>>           function = "gpio";
> 
Hi,

Please disregard this patch. Although it can detect the tags and the 
tags type, the full readout does not work. I will send a new version 
when I figure out what's wrong.

Thanks