linux-kernel - [PATCH 17/20] dt-bindings: img-ascii-lcd: Document a binding for simple ASCII LCDs

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Message-ID: <20160809123546.10190-18-paul.burton@imgtec.com>
Date:	Tue, 9 Aug 2016 13:35:42 +0100
From:	Paul Burton <paul.burton@...tec.com>
To:	<linux-mips@...ux-mips.org>, Ralf Baechle <ralf@...ux-mips.org>
CC:	Paul Burton <paul.burton@...tec.com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	<devicetree@...r.kernel.org>, Guenter Roeck <linux@...ck-us.net>,
	<linux-kernel@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Rob Herring <robh+dt@...nel.org>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Mark Rutland <mark.rutland@....com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH 17/20] dt-bindings: img-ascii-lcd: Document a binding for simple ASCII LCDs

Add documentation for a devicetree binding for the simple ASCII LCD
displays found on development boards such as the MIPS Boston, MIPS Malta
& MIPS SEAD3 from Imagination Technologies.

Signed-off-by: Paul Burton <paul.burton@...tec.com>
---

 .../devicetree/bindings/auxdisplay/img-ascii-lcd.txt    | 17 +++++++++++++++++
 MAINTAINERS                                             |  5 +++++
 2 files changed, 22 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/auxdisplay/img-ascii-lcd.txt

diff --git a/Documentation/devicetree/bindings/auxdisplay/img-ascii-lcd.txt b/Documentation/devicetree/bindings/auxdisplay/img-ascii-lcd.txt
new file mode 100644
index 0000000..b69bb68
--- /dev/null
+++ b/Documentation/devicetree/bindings/auxdisplay/img-ascii-lcd.txt
@@ -0,0 +1,17 @@
+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 20bb1d0..d08cf6d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1971,6 +1971,11 @@ S:	Maintained
 F:	Documentation/hwmon/asc7621
 F:	drivers/hwmon/asc7621.c
 
+ASCII LCD DRIVER
+M:	Paul Burton <paul.burton@...tec.com>
+S:	Maintained
+F:	Documentation/devicetree/bindings/ascii-lcd.txt
+
 ASUS NOTEBOOKS AND EEEPC ACPI/WMI EXTRAS DRIVERS
 M:	Corentin Chary <corentin.chary@...il.com>
 L:	acpi4asus-user@...ts.sourceforge.net
-- 
2.9.2