From 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 27 Apr 2024 12:05:51 +0200
Subject: Adding upstream version 5.10.209.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../bindings/iio/adc/microchip,mcp3911.yaml        | 72 ++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml

(limited to 'Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml')

diff --git a/Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml b/Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml
new file mode 100644
index 000000000..95ab285f4
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+# Copyright 2019 Marcus Folkesson <marcus.folkesson@gmail.com>
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/iio/adc/microchip,mcp3911.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Microchip MCP3911 Dual channel analog front end (ADC)
+
+maintainers:
+  - Marcus Folkesson <marcus.folkesson@gmail.com>
+  - Kent Gustavsson <nedo80@gmail.com>
+
+description: |
+  Bindings for the Microchip MCP3911 Dual channel ADC device. Datasheet can be
+  found here: https://ww1.microchip.com/downloads/en/DeviceDoc/20002286C.pdf
+
+properties:
+  compatible:
+    enum:
+      - microchip,mcp3911
+
+  reg:
+    maxItems: 1
+
+  spi-max-frequency:
+    maximum: 20000000
+
+  clocks:
+    description: |
+      Phandle and clock identifier for external sampling clock.
+      If not specified, the internal crystal oscillator will be used.
+    maxItems: 1
+
+  interrupts:
+    description: IRQ line of the ADC
+    maxItems: 1
+
+  microchip,device-addr:
+    description: Device address when multiple MCP3911 chips are present on the same SPI bus.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 1, 2, 3]
+    default: 0
+
+  vref-supply:
+    description: |
+      Phandle to the external reference voltage supply.
+      If not specified, the internal voltage reference (1.2V) will be used.
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    spi {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      adc@0 {
+        compatible = "microchip,mcp3911";
+        reg = <0>;
+        interrupt-parent = <&gpio5>;
+        interrupts = <15 2>;
+        spi-max-frequency = <20000000>;
+        microchip,device-addr = <0>;
+        vref-supply = <&vref_reg>;
+        clocks = <&xtal>;
+      };
+    };
-- 
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