linux-kernel - [PATCH v1 1/2] mtd: devices: add devicetree documentation for microchip 48l640

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Message-Id: <20210528072351.1639575-2-hs@denx.de>
Date:   Fri, 28 May 2021 09:23:50 +0200
From:   Heiko Schocher <hs@...x.de>
To:     linux-mtd@...ts.infradead.org
Cc:     Heiko Schocher <hs@...x.de>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Rob Herring <robh+dt@...nel.org>,
        Vignesh Raghavendra <vigneshr@...com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v1 1/2] mtd: devices: add devicetree documentation for microchip 48l640

The Microchip 48l640 is a 8KByte EERAM connected via SPI.
Add devicetree bindings documentation.

Signed-off-by: Heiko Schocher <hs@...x.de>
---
I must admit that I created the file

Documentation/devicetree/bindings/mtd/microchip,mchp48l640.yaml

by hand, looking into other yaml files...

Is there a way to check such a file to its correctness?

 .../bindings/mtd/microchip,mchp48l640.yaml    | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mtd/microchip,mchp48l640.yaml

diff --git a/Documentation/devicetree/bindings/mtd/microchip,mchp48l640.yaml b/Documentation/devicetree/bindings/mtd/microchip,mchp48l640.yaml
new file mode 100644
index 0000000000000..f0290d09d4b25
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/microchip,mchp48l640.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+title: MTD SPI driver for Microchip 48l640 (and similar) serial EERAM
+
+maintainers:
+  - Heiko Schocher <hs@...x.de>
+
+description: |
+  The Microchip 48l640 is a 8KByte EERAM connected via SPI.
+
+  datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/20006055B.pdf
+
+properties:
+  compatible:
+    items:
+      - const: microchip,48l640
+
+  reg:
+    maxItems: 1
+
+  spi-max-frequency: true
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    spi {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      spi-eeram@0 {
+        compatible = "microchip,48l640";
+        reg = <0>;
+        spi-max-frequency = <20000000>;
+      };
+    };
+...
-- 
2.30.2