arm64: dts: mediatek: mt6795-xperia-m5: Add NXP PN547 NFC on I2C3

Add support for the NXP PN547 NFC chip found on this smartphone and
configure its pins.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230327083647.22017-18-angelogioacchino.delregno@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

diff --git a/arch/arm64/boot/dts/mediatek/mt6795-sony-xperia-m5.dts b/arch/arm64/boot/dts/mediatek/mt6795-sony-xperia-m5.dts
index a40b9f5..a0e01a7 100644 (file)
--- a/arch/arm64/boot/dts/mediatek/mt6795-sony-xperia-m5.dts
+++ b/arch/arm64/boot/dts/mediatek/mt6795-sony-xperia-m5.dts
@@ -5,6 +5,7 @@
  */
 
 /dts-v1/;
+#include <dt-bindings/gpio/gpio.h>
 #include "mt6795.dtsi"
 
 / {
@@ -100,6 +101,16 @@
        pinctrl-0 = <&i2c3_pins>;
        status = "okay";
 
+       pn547: nfc@28 {
+               compatible = "nxp,pn544-i2c";
+               reg = <0x28>;
+               interrupts-extended = <&pio 3 IRQ_TYPE_EDGE_RISING>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&nfc_pins>;
+               enable-gpios = <&pio 149 GPIO_ACTIVE_HIGH>;
+               firmware-gpios = <&pio 94 GPIO_ACTIVE_HIGH>;
+       };
+
        proximity@48 {
                compatible = "sensortek,stk3310";
                reg = <0x48>;
@@ -110,6 +121,19 @@
 };
 
 &pio {
+       nfc_pins: nfc-pins {
+               pins-irq {
+                       pinmux = <PINMUX_GPIO3__FUNC_GPIO3>;
+                       bias-pull-down;
+                       input-enable;
+               };
+
+               pins-fw-ven {
+                       pinmux = <PINMUX_GPIO94__FUNC_GPIO94>,
+                                <PINMUX_GPIO149__FUNC_GPIO149>;
+               };
+       };
+
        ts_pins: touchscreen-pins {
                pins-irq {
                        pinmux = <PINMUX_GPIO6__FUNC_GPIO6>;