1 files changed, 105 insertions, 0 deletions
diff --git a/dts/Bindings/net/nfc/st,st-nci.yaml b/dts/Bindings/net/nfc/st,st-nci.yaml
new file mode 100644
index 0000000000..1dcbddbc5a
--- /dev/null
+++ b/dts/Bindings/net/nfc/st,st-nci.yaml
@@ -0,0 +1,105 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/nfc/st,st-nci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics ST NCI NFC controller
+
+maintainers:
+  - Krzysztof Kozlowski <krzk@kernel.org>
+
+properties:
+  compatible:
+    enum:
+      - st,st21nfcb-i2c
+      - st,st21nfcb-spi
+      - st,st21nfcc-i2c
+
+  reset-gpios:
+    description: Output GPIO pin used for resetting the controller
+
+  ese-present:
+    type: boolean
+    description: |
+      Specifies that an ese is physically connected to the controller
+
+  interrupts:
+    maxItems: 1
+
+  reg:
+    maxItems: 1
+
+  uicc-present:
+    type: boolean
+    description: |
+      Specifies that the uicc swp signal can be physically connected to the
+      controller
+
+required:
+  - compatible
+  - interrupts
+  - reg
+  - reset-gpios
+
+if:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - st,st21nfcb-i2c
+          - st,st21nfcc-i2c
+then:
+  properties:
+    spi-max-frequency: false
+else:
+  $ref: /schemas/spi/spi-peripheral-props.yaml#
+  required:
+    - spi-max-frequency
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        nfc@8 {
+            compatible = "st,st21nfcb-i2c";
+            reg = <0x08>;
+
+            interrupt-parent = <&gpio5>;
+            interrupts = <2 IRQ_TYPE_LEVEL_HIGH>;
+            reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>;
+
+            ese-present;
+            uicc-present;
+        };
+    };
+
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        nfc@0 {
+            compatible = "st,st21nfcb-spi";
+            reg = <0>;
+
+            spi-max-frequency = <4000000>;
+
+            interrupt-parent = <&gpio5>;
+            interrupts = <2 IRQ_TYPE_EDGE_RISING>;
+            reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>;
+
+            ese-present;
+            uicc-present;
+        };
+    };