linux-kernel - [PATCH] dt-bindings: iio: dac: Migrate LTC1660 documentation to yaml

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Message-Id: <20191104174036.3535-1-marcus.folkesson@gmail.com>
Date:   Mon,  4 Nov 2019 18:40:36 +0100
From:   Marcus Folkesson <marcus.folkesson@...il.com>
To:     Jonathan Cameron <jic23@...nel.org>,
        Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Marcus Folkesson <marcus.folkesson@...il.com>,
        Kent Gustavsson <kent@...oris.se>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        "David S . Miller" <davem@...emloft.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Paul E . McKenney" <paulmck@...ux.ibm.com>
Cc:     linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] dt-bindings: iio: dac: Migrate LTC1660 documentation to yaml

Rewrite bindings to use json-schema vocabulary.

Signed-off-by: Marcus Folkesson <marcus.folkesson@...il.com>
---
 .../bindings/iio/dac/lltc,ltc1660.yaml        | 54 +++++++++++++++++++
 .../devicetree/bindings/iio/dac/ltc1660.txt   | 21 --------
 MAINTAINERS                                   |  2 +-
 3 files changed, 55 insertions(+), 22 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/iio/dac/lltc,ltc1660.yaml
 delete mode 100644 Documentation/devicetree/bindings/iio/dac/ltc1660.txt

diff --git a/Documentation/devicetree/bindings/iio/dac/lltc,ltc1660.yaml b/Documentation/devicetree/bindings/iio/dac/lltc,ltc1660.yaml
new file mode 100644
index 000000000000..1f3136bfffcd
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/lltc,ltc1660.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright 2019 Marcus Folkesson <marcus.folkesson@...il.com>
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/bindings/iio/dac/lltc,ltc1660.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Linear Technology Micropower octal 8-Bit and 10-Bit DACs
+
+maintainers:
+  - Marcus Folkesson <marcus.folkesson@...il.com>
+
+description: |
+  Bindings for the Linear Technology Micropower octal 8-Bit and 10-Bit DAC.
+  Datasheet can be found here: https://www.analog.com/media/en/technical-documentation/data-sheets/166560fa.pdf
+
+properties:
+  compatible:
+    enum:
+      - lltc,ltc1660
+      - lltc,ltc1665
+
+  reg:
+    description: SPI chip select number for the device
+    maxItems: 1
+
+  spi-max-frequency:
+    description: |
+      Definition as per Documentation/devicetree/bindings/spi/spi-bus.txt.
+    maximum: 5000000
+    maxItems: 1
+
+  vref-supply:
+    description: Phandle to the external reference voltage supply.
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - vref-supply
+
+examples:
+  - |
+    spi {
+      #address-cells = <1>;
+      #size-cells = <0>;
+  
+      dac@0 {
+        compatible = "lltc,ltc1660";
+        reg = <0>;
+        spi-max-frequency = <5000000>;
+        vref-supply = <&vref_reg>;
+      };
+    };
diff --git a/Documentation/devicetree/bindings/iio/dac/ltc1660.txt b/Documentation/devicetree/bindings/iio/dac/ltc1660.txt
deleted file mode 100644
index c5b5f22d6c64..000000000000
--- a/Documentation/devicetree/bindings/iio/dac/ltc1660.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-* Linear Technology Micropower octal 8-Bit and 10-Bit DACs
-
-Required properties:
- - compatible: Must be one of the following:
-		"lltc,ltc1660"
-		"lltc,ltc1665"
- - reg: SPI chip select number for the device
- - vref-supply: Phandle to the voltage reference supply
-
-Recommended properties:
- - spi-max-frequency: Definition as per
-	 Documentation/devicetree/bindings/spi/spi-bus.txt.
-	 Max frequency for this chip is 5 MHz.
-
-Example:
-dac@0 {
-	compatible = "lltc,ltc1660";
-	reg = <0>;
-	spi-max-frequency = <5000000>;
-	vref-supply = <&vref_reg>;
-};
diff --git a/MAINTAINERS b/MAINTAINERS
index fbccc9d450ff..23497d713298 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9619,7 +9619,7 @@ LTC1660 DAC DRIVER
 M:	Marcus Folkesson <marcus.folkesson@...il.com>
 L:	linux-iio@...r.kernel.org
 S:	Maintained
-F:	Documentation/devicetree/bindings/iio/dac/ltc1660.txt
+F:	Documentation/devicetree/bindings/iio/dac/lltc,ltc1660.yaml
 F:	drivers/iio/dac/ltc1660.c
 
 LTC4261 HARDWARE MONITOR DRIVER
-- 
2.23.0