From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 20:49:45 +0200
Subject: Adding upstream version 6.1.76.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../bindings/net/nfc/samsung,s3fwrn5.yaml          | 99 ++++++++++++++++++++++
 1 file changed, 99 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/nfc/samsung,s3fwrn5.yaml

(limited to 'Documentation/devicetree/bindings/net/nfc/samsung,s3fwrn5.yaml')

diff --git a/Documentation/devicetree/bindings/net/nfc/samsung,s3fwrn5.yaml b/Documentation/devicetree/bindings/net/nfc/samsung,s3fwrn5.yaml
new file mode 100644
index 000000000..41c976022
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/nfc/samsung,s3fwrn5.yaml
@@ -0,0 +1,99 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/nfc/samsung,s3fwrn5.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung S3FWRN5 NCI NFC Controller
+
+maintainers:
+  - Krzysztof Kozlowski <krzk@kernel.org>
+
+properties:
+  compatible:
+    enum:
+      - samsung,s3fwrn5-i2c
+      - samsung,s3fwrn82
+
+  en-gpios:
+    maxItems: 1
+    description:
+      Output GPIO pin used for enabling/disabling the chip
+
+  interrupts:
+    maxItems: 1
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  wake-gpios:
+    maxItems: 1
+    description:
+      Output GPIO pin used to enter firmware mode and sleep/wakeup control
+
+  s3fwrn5,en-gpios:
+    maxItems: 1
+    deprecated: true
+    description:
+      Use en-gpios
+
+  s3fwrn5,fw-gpios:
+    maxItems: 1
+    deprecated: true
+    description:
+      Use wake-gpios
+
+additionalProperties: false
+
+required:
+  - compatible
+  - en-gpios
+  - wake-gpios
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: samsung,s3fwrn5-i2c
+    then:
+      required:
+        - interrupts
+        - reg
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c4 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        s3fwrn5@27 {
+            compatible = "samsung,s3fwrn5-i2c";
+            reg = <0x27>;
+
+            interrupt-parent = <&gpa1>;
+            interrupts = <3 IRQ_TYPE_EDGE_RISING>;
+
+            en-gpios = <&gpf1 4 GPIO_ACTIVE_HIGH>;
+            wake-gpios = <&gpj0 2 GPIO_ACTIVE_HIGH>;
+
+            clocks = <&rpmcc 20>;
+        };
+    };
+  # UART example on Raspberry Pi
+  - |
+    uart0 {
+        nfc {
+            compatible = "samsung,s3fwrn82";
+
+            en-gpios = <&gpio 20 GPIO_ACTIVE_HIGH>;
+            wake-gpios = <&gpio 16 GPIO_ACTIVE_HIGH>;
+
+        };
+    };
-- 
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