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Message-ID: <20151103072124.GA33601@dtor-ws>
Date: Mon, 2 Nov 2015 23:21:24 -0800
From: Dmitry Torokhov <dmitry.torokhov@...il.com>
To: Michael Welling <mwelling@...e.org>
Cc: Rob Herring <robh@...nel.org>, kbuild test robot <lkp@...el.com>,
kbuild-all@...org, Tony Lindgren <tony@...mide.com>,
Pavel Machek <pavel@....cz>, Felipe Balbi <balbi@...com>,
Sebastian Reichel <sre@...nel.org>,
Roger Quadros <rogerq@...com>, Arnd Bergmann <arnd@...db.de>,
Mark Brown <broonie@...nel.org>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-input@...r.kernel.org" <linux-input@...r.kernel.org>
Subject: Re: [PATCH 4/4] Input: tsc2004 - Document ts2004 dt bindings
On Mon, Nov 02, 2015 at 02:50:29PM -0600, Michael Welling wrote:
> On Mon, Nov 02, 2015 at 09:19:50AM -0600, Rob Herring wrote:
> > > +Required properties:
> > > + - compatible : "ti,tsc2004"
> > > + - interrupts : IRQ specifier
> > > + - vio-supply : Regulator specifier
> >
> > reg property?
>
> Rob,
>
> It appears that I missed this in the description.
>
> Probably because I was following the lead of the ts2005 description.
>
> How does this look:
> - reg : I2C address. 0x48 - 0x4b based on the voltage applied to
> the AD1 and AD0 inputs on the IC.
>
How about the version below?
Thanks.
--
Dmitry
Input: tsc2004 - document ts2004 dt bindings
From: Michael Welling <mwelling@...e.org>
Adds documentation for the devicetree bindings of the new tsc2004 driver.
Signed-off-by: Michael Welling <mwelling@...e.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
---
.../bindings/input/touchscreen/tsc2005.txt | 34 ++++++++++++++++----
1 file changed, 28 insertions(+), 6 deletions(-)
diff --git a/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt b/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt
index 09089a6..b80c04b 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt
@@ -1,14 +1,15 @@
-* Texas Instruments tsc2005 touchscreen controller
+* Texas Instruments tsc2004 and tsc2005 touchscreen controllers
Required properties:
- - compatible : "ti,tsc2005"
- - reg : SPI device address
- - spi-max-frequency : Maximal SPI speed
+ - compatible : "ti,tsc2004" or "ti,tsc2005"
+ - reg : Device address
- interrupts : IRQ specifier
- - reset-gpios : GPIO specifier
- - vio-supply : Regulator specifier
+ - spi-max-frequency : Maximum SPI clocking speed of the device
+ (for tsc2005)
Optional properties:
+ - vio-supply : Regulator specifier
+ - reset-gpios : GPIO specifier for the controller reset line
- ti,x-plate-ohms : integer, resistance of the touchscreen's X plates
in ohm (defaults to 280)
- ti,esd-recovery-timeout-ms : integer, if the touchscreen does not respond after
@@ -18,6 +19,27 @@ Optional properties:
Example:
+&i2c3 {
+ tsc2004@48 {
+ compatible = "ti,tsc2004";
+ reg = <0x48>;
+ vio-supply = <&vio>;
+
+ reset-gpios = <&gpio4 8 GPIO_ACTIVE_HIGH>;
+ interrupts-extended = <&gpio1 27 IRQ_TYPE_EDGE_RISING>;
+
+ touchscreen-fuzz-x = <4>;
+ touchscreen-fuzz-y = <7>;
+ touchscreen-fuzz-pressure = <2>;
+ touchscreen-size-x = <4096>;
+ touchscreen-size-y = <4096>;
+ touchscreen-max-pressure = <2048>;
+
+ ti,x-plate-ohms = <280>;
+ ti,esd-recovery-timeout-ms = <8000>;
+ };
+}
+
&mcspi1 {
tsc2005@0 {
compatible = "ti,tsc2005";
--
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