From 8ef3ff2723f8cbaec4fee3c7fa807bf8d6ccd2e5 Mon Sep 17 00:00:00 2001 From: Paul Burton Date: Fri, 26 Aug 2016 15:17:48 +0100 Subject: 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 Acked-by: Rob Herring Cc: Mauro Carvalho Chehab Cc: Guenter Roeck Cc: David S. Miller Cc: Greg Kroah-Hartman Cc: Geert Uytterhoeven Cc: Mark Rutland Cc: Andrew Morton Cc: linux-mips@linux-mips.org Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/14061/ Signed-off-by: Ralf Baechle --- .../devicetree/bindings/auxdisplay/img-ascii-lcd.txt | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 Documentation/devicetree/bindings/auxdisplay/img-ascii-lcd.txt (limited to 'Documentation') 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. -- cgit v1.1