[PATCH v3 5/5] arm64: dts: qcom: sdm845-google-common: Enable NFC
David Heidelberg via B4 Relay <[email protected]> Fri, 03 Apr 2026 15:58:50 +0200
| Newsgroups | dev.linux.lists.oe-linux-nfc,org.kernel.feeds.b4-sent,org.kernel.vger.linux-arm-msm,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel,org.kernel.vger.netdev,org.kernel.vger.phone-devel |
|---|---|
| Message-ID | <[email protected]> |
From: David Heidelberg <[email protected]> Enable NFC controller NXP PN557. Signed-off-by: David Heidelberg <[email protected]> --- arch/arm64/boot/dts/qcom/sdm845-google-common.dtsi | 31 ++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sdm845-google-common.dtsi b/arch/arm64/boot/dts/qcom/sdm845-google-common.dtsi index 6930066857768..b2dc0327dff85 100644 --- a/arch/arm64/boot/dts/qcom/sdm845-google-common.dtsi +++ b/arch/arm64/boot/dts/qcom/sdm845-google-common.dtsi @@ -391,6 +391,23 @@ &gpu_zap_shader { firmware-name = "qcom/sdm845/Google/blueline/a630_zap.mbn"; }; +&i2c3 { + status = "okay"; + + nfc@28 { + compatible = "nxp,pn557", "nxp,nxp-nci-i2c"; + reg = <0x28>; + + interrupts-extended = <&tlmm 63 IRQ_TYPE_EDGE_RISING>; + + enable-gpios = <&tlmm 25 GPIO_ACTIVE_HIGH>; + firmware-gpios = <&tlmm 79 GPIO_ACTIVE_HIGH>; + + pinctrl-0 = <&nfc_int_default &nfc_enable_default>; + pinctrl-names = "default"; + }; +}; + &i2c12 { /* Bottom spkr (right) CS35L36 @ 40 */ @@ -459,6 +476,20 @@ &tlmm { gpio-reserved-ranges = < 0 4>, /* SPI (Intel MNH Pixel Visual Core) */ <81 4>; /* SPI (most likely Fingerprint Cards FPC1075) */ + nfc_int_default: nfc-int-default-state { + pins = "gpio63"; + function = "gpio"; + drive-strength = <2>; + bias-pull-down; + }; + + nfc_enable_default: nfc-enable-default-state { + pins = "gpio25", "gpio79"; + function = "gpio"; + drive-strength = <2>; + bias-pull-down; + }; + touchscreen_reset: ts-reset-state { pins = "gpio99"; function = "gpio"; -- 2.53.0