linux-kernel - Re: [PATCH 02/28] dt-bindings: ascii-lcd: Document a binding for simple ASCII LCDs

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Date:	Mon, 30 Nov 2015 12:57:42 -0600
From:	Rob Herring <robh@...nel.org>
To:	Paul Burton <paul.burton@...tec.com>
Cc:	linux-mips@...ux-mips.org, Tejun Heo <tj@...nel.org>,
	Joe Perches <joe@...ches.com>, Jiri Slaby <jslaby@...e.com>,
	Mauro Carvalho Chehab <mchehab@....samsung.com>,
	linux-kernel@...r.kernel.org, Kumar Gala <galak@...eaurora.org>,
	"David S. Miller" <davem@...emloft.net>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	devicetree@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Pawel Moll <pawel.moll@....com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Mark Rutland <mark.rutland@....com>
Subject: Re: [PATCH 02/28] dt-bindings: ascii-lcd: Document a binding for
 simple ASCII LCDs

On Mon, Nov 30, 2015 at 04:21:27PM +0000, Paul Burton wrote:
> Add documentation for a devicetree binding for simple memory-mapped
> ASCII LCD displays, such as those found on the Imagination Technologies
> Boston & Malta development boards.
> 
> Signed-off-by: Paul Burton <paul.burton@...tec.com>
> ---
> 
>  Documentation/devicetree/bindings/ascii-lcd.txt | 10 ++++++++++

This should go under bindings/display/.

>  MAINTAINERS                                     |  5 +++++
>  2 files changed, 15 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/ascii-lcd.txt
> 
> diff --git a/Documentation/devicetree/bindings/ascii-lcd.txt b/Documentation/devicetree/bindings/ascii-lcd.txt
> new file mode 100644
> index 0000000..40ae536
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/ascii-lcd.txt
> @@ -0,0 +1,10 @@
> +Binding for simple memory-mapped ASCII LCD displays

Presumably, this is a binding for the controller, not the actual 
display. You need to more fully describe what the h/w looks like here. 
Like what is the interface between the controller and display?

Rob

> +
> +Required properties:
> +- compatible : should be one of:
> +    "img,boston-lcd"
> +    "mti,malta-lcd"
> +- reg : memory region locating the device registers
> +
> +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 cba790b..1e2b74b 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -1782,6 +1782,11 @@ 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
> -- 
> 2.6.2
> 
--
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