From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Rob Herring <robh+dt@kernel.org>,
Paul Burton <paulburton@kernel.org>,
Miguel Ojeda <ojeda@kernel.org>
Cc: devicetree@vger.kernel.org, linux-mips@vger.kernel.org,
linux-kernel@vger.kernel.org,
Geert Uytterhoeven <geert@linux-m68k.org>
Subject: [PATCH] dt-bindings: auxdisplay: img-ascii-lcd: Convert to json-schema
Date: Tue, 27 Jul 2021 18:10:34 +0200 [thread overview]
Message-ID: <6e74aa466d39ddc9abe502e054d04e8cc7b76b40.1627402094.git.geert@linux-m68k.org> (raw)
Convert the Device Tree binding documentation for ASCII LCD displays on
Imagination Technologies boards to json-schema.
Drop bogus regmap property.
Add example.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
.../bindings/auxdisplay/img,ascii-lcd.yaml | 54 +++++++++++++++++++
.../bindings/auxdisplay/img-ascii-lcd.txt | 17 ------
MAINTAINERS | 2 +-
3 files changed, 55 insertions(+), 18 deletions(-)
create mode 100644 Documentation/devicetree/bindings/auxdisplay/img,ascii-lcd.yaml
delete mode 100644 Documentation/devicetree/bindings/auxdisplay/img-ascii-lcd.txt
diff --git a/Documentation/devicetree/bindings/auxdisplay/img,ascii-lcd.yaml b/Documentation/devicetree/bindings/auxdisplay/img,ascii-lcd.yaml
new file mode 100644
index 0000000000000000..66e54f12f40f2f78
--- /dev/null
+++ b/Documentation/devicetree/bindings/auxdisplay/img,ascii-lcd.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/auxdisplay/img,ascii-lcd.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ASCII LCD displays on Imagination Technologies boards
+
+maintainers:
+ - Paul Burton <paulburton@kernel.org>
+
+properties:
+ compatible:
+ enum:
+ - img,boston-lcd
+ - mti,malta-lcd
+ - mti,sead3-lcd
+
+ reg:
+ maxItems: 1
+
+ offset:
+ description:
+ Offset in bytes to the LCD registers within the system controller
+
+required:
+ - compatible
+
+oneOf:
+ - required:
+ - reg
+ - required:
+ - offset
+
+if:
+ properties:
+ compatible:
+ contains:
+ const: img,boston-lcd
+then:
+ required:
+ - reg
+else:
+ required:
+ - offset
+
+additionalProperties: false
+
+examples:
+ - |
+ lcd: lcd@17fff000 {
+ compatible = "img,boston-lcd";
+ reg = <0x17fff000 0x8>;
+ };
diff --git a/Documentation/devicetree/bindings/auxdisplay/img-ascii-lcd.txt b/Documentation/devicetree/bindings/auxdisplay/img-ascii-lcd.txt
deleted file mode 100644
index b69bb68992fdf2a7..0000000000000000
--- a/Documentation/devicetree/bindings/auxdisplay/img-ascii-lcd.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-Binding for ASCII LCD displays on Imagination Technologies boards
-
-Required properties:
-- compatible : should be one of:
- "img,boston-lcd"
- "mti,malta-lcd"
- "mti,sead3-lcd"
-
-Required properties for "img,boston-lcd":
-- reg : memory region locating the device registers
-
-Required properties for "mti,malta-lcd" or "mti,sead3-lcd":
-- regmap: phandle of the system controller containing the LCD registers
-- offset: offset in bytes to the LCD registers within the system controller
-
-The layout of the registers & properties of the display are determined
-from the compatible string, making this binding somewhat trivial.
diff --git a/MAINTAINERS b/MAINTAINERS
index 7c2ca9c3809f0104..a8afc9238fd8e164 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9063,7 +9063,7 @@ F: drivers/usb/atm/ueagle-atm.c
IMGTEC ASCII LCD DRIVER
M: Paul Burton <paulburton@kernel.org>
S: Maintained
-F: Documentation/devicetree/bindings/auxdisplay/img-ascii-lcd.txt
+F: Documentation/devicetree/bindings/auxdisplay/img,ascii-lcd.yaml
F: drivers/auxdisplay/img-ascii-lcd.c
IMGTEC IR DECODER DRIVER
--
2.25.1
next reply other threads:[~2021-07-27 16:10 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-27 16:10 Geert Uytterhoeven [this message]
2021-08-02 20:52 ` [PATCH] dt-bindings: auxdisplay: img-ascii-lcd: Convert to json-schema Rob Herring
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