| Qualcomm QCA199x NFC NCI device |
| |
| Near Field Communication (NFC) device is based on NFC Controller Interface (NCI) |
| |
| Required properties: |
| |
| - compatible: "qcom,nfc-nci" |
| - reg: NCI i2c slave address. |
| - qcom,dis-gpio: specific gpio for hardware reset. |
| - qcom,irq-gpio: specific gpio for read interrupt. |
| - qcom,clk-src: nfc clock source ("BBCLK2", "RFCLK3", "GPCLK", "GPCLK2", ...) |
| - qcom,clk-src-gpio: msm gpio clock,used ony if clock source is msm gpio |
| - qcom,clk-req-gpio: clk-req input gpio for MSM based clocks. |
| not used for pmic implementation |
| - interrupt-parent: Should be phandle for the interrupt controller |
| that services interrupts for this device. |
| - interrupts: Nfc read interrupt,gpio-clk-req interrupt |
| - qcom,clk-gpio: pmic or msm gpio on which bbclk2 signal is coming. |
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| Example: |
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| i2c@f9925000 { /* BLSP-1 QUP-3 */ |
| nfc-nci@e { |
| compatible = "qcom,nfc-nci"; |
| reg = <0x0e>; |
| qcom,irq-gpio = <&msmgpio 77 0x00>; |
| qcom,dis-gpio = <&msmgpio 93 0x00>; |
| qcom,clk-src-gpio = <&msmgpio 78 0x00>; |
| qcom,clk-src = "GPCLK2"; |
| interrupt-parent = <&msmgpio>; |
| interrupts = <77 0>; |
| qcom,clk-gpio = <&msmgpio 75 0x00>; |
| }; |
| }; |
| |