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/iio/proximity/ams,as3935.yaml         | 71 ++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/proximity/ams,as3935.yaml

(limited to 'Documentation/devicetree/bindings/iio/proximity/ams,as3935.yaml')

diff --git a/Documentation/devicetree/bindings/iio/proximity/ams,as3935.yaml b/Documentation/devicetree/bindings/iio/proximity/ams,as3935.yaml
new file mode 100644
index 000000000..7fcba5d6d
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/proximity/ams,as3935.yaml
@@ -0,0 +1,71 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/proximity/ams,as3935.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Austrian Microsystems AS3935 Franklin lightning sensor
+
+maintainers:
+  - Matt Ranostay <matt.ranostay@konsulko.com>
+
+description:
+  This lightening distance sensor uses an I2C or SPI interface. The
+  binding currently only covers the SPI option.
+
+properties:
+  compatible:
+    const: ams,as3935
+
+  reg:
+    maxItems: 1
+
+  spi-max-frequency:
+    maximum: 2000000
+
+  spi-cpha: true
+
+  interrupts:
+    maxItems: 1
+
+  ams,tuning-capacitor-pf:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      Calibration tuning capacitor stepping value. This will require using
+      the calibration data from the manufacturer.
+    minimum: 0
+    maximum: 120
+
+  ams,nflwdth:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      Set the noise and watchdog threshold register on startup. This will
+      need to set according to the noise from the MCU board, and possibly
+      the local environment. Refer to the datasheet for the threshold settings.
+
+required:
+  - compatible
+  - reg
+  - spi-cpha
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+    lightning@0 {
+            compatible = "ams,as3935";
+            reg = <0>;
+            spi-max-frequency = <400000>;
+            spi-cpha;
+            interrupt-parent = <&gpio1>;
+            interrupts = <16 1>;
+            ams,tuning-capacitor-pf = <80>;
+            ams,nflwdth = <0x44>;
+        };
+    };
+...
-- 
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