diff --git a/bindings/nfc/sn-nci.txt b/bindings/nfc/sn-nci.txt new file mode 100644 index 000000000000..257f592530d6 --- /dev/null +++ b/bindings/nfc/sn-nci.txt @@ -0,0 +1,50 @@ +Qualcomm Technologies, Inc SNxxx NFC NCI device + +Near Field Communication (NFC) device is based on NFC Controller Interface (NCI) + +Required properties: + +- compatible: "qcom,sn-nci" +- reg: NCI I2C slave address. +- qcom,sn-ven: specific gpio for hardware reset. +- qcom,sn-irq: specific gpio for read interrupt. +- qcom,sn-firm: gpio for firmware download +- qcom,sn-clkreq: gpio for clock +- interrupt-parent: Should be phandle for the interrupt controller + that services interrupts for this device. +- interrupts: Nfc read interrupt,gpio-clk-req interrupt + + +Recommended properties: + +- interrupt-names: names of interrupts, should include "nfc_irq", used for reference + + +Optional properties: + +- pinctrl-names, pinctrl-0, pincntrl-1: references to our pincntrl settings +- clocks, clock-names: must contain the SNxxx's core clock. +- qcom,clk-src: NFC clock for antenna + +Example: + + sn-nci@2b { + compatible = "qcom,sn-nci"; + reg = <0x2b>; + qcom,sn-irq = <&tlmm 87 0x00>; + qcom,sn-ven = <&tlmm 62 0x00>; + qcom,sn-firm = <&tlmm 86 0x00>; + qcom,sn-clkreq = <&tlmm 63 0x00>; + qcom,clk-src = "BBCLK2"; + interrupt-parent = <&tlmm>; + interrupts = <29 0>; + interrupt-names = "nfc_irq"; + pinctrl-names = "default","sleep"; + pinctrl-0 = <&nfc_enable_active &nfc_fwdl_active + &nfc_clk_req_active &nfc_int_active>; + pinctrl-1 = <&nfc_enable_suspend &nfc_fwdl_suspend + &nfc_clk_req_suspend &nfc_int_suspend>; + clocks = <&clock_rpm clk_bb_clk2_pin>; + clock-names = "ref_clk"; + status = "ok"; + };