linux-kernel - Re: [PATCH 2/4] input: touchscreen: crtouch

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Message-ID: <20160628205544.GH3737@rob-hp-laptop>
Date:	Tue, 28 Jun 2016 15:55:44 -0500
From:	Rob Herring <robh@...nel.org>
To:	Anthony Felice <tony.felice@...esys.com>
Cc:	dri-devel@...ts.freedesktop.org, shawnguo@...nel.org,
	dmitry.torokhov@...il.com, mark.rutland@....com,
	kernel@...gutronix.de, stefan@...er.ch, linux@...linux.org.uk,
	fabio.estevam@....com, geert@...ux-m68k.org, mwelling@...e.org,
	sre@...nel.org, damien.riegel@...oirfairelinux.com,
	maitysanchayan@...il.com, linux-input@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 2/4] input: touchscreen: crtouch_ts: Add driver

On Fri, Jun 24, 2016 at 03:44:44PM -0400, Anthony Felice wrote:
> Add driver for the Vybrid Tower CRTouch-based touchscreen. This is
> required for the touchscreen on the TWR-LCD-RGB to work on the Vybrid
> Tower platform.
> 
> There is a known issue with this driver: rarely, SW1 on the TWR-LCD-RGB
> module needs to be pressed in order for the touchscreen to begin
> functioning.
> 
> Signed-off-by: Anthony Felice <tony.felice@...esys.com>
> ---
>  .../bindings/input/touchscreen/crtouch_ts.txt      |  14 ++
>  drivers/input/touchscreen/Kconfig                  |  10 +
>  drivers/input/touchscreen/Makefile                 |   1 +
>  drivers/input/touchscreen/crtouch_ts.c             | 279 +++++++++++++++++++++
>  4 files changed, 304 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/input/touchscreen/crtouch_ts.txt
>  create mode 100644 drivers/input/touchscreen/crtouch_ts.c
> 
> diff --git a/Documentation/devicetree/bindings/input/touchscreen/crtouch_ts.txt b/Documentation/devicetree/bindings/input/touchscreen/crtouch_ts.txt
> new file mode 100644
> index 0000000..cfb966c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/input/touchscreen/crtouch_ts.txt
> @@ -0,0 +1,14 @@
> +* Freescale CRTOUCH based touchscreen
> +
> +Required Properties:
> +- compatible must be fsl,crtouch_ts
> +- reg: I2C address of the touchscreen
> +- irq-gpio: GPIO to use as event IRQ
> +
> +Example:
> +
> +	touch: crtouch@49 {

touchscreen@49

> +		compatible = "fsl,crtouch_ts";

Use '-', not '_'.

> +		reg = <0x49>;
> +		irq-gpio = <&gpio0 21 GPIO_ACTIVE_HIGH>;

As Dmitry said.