From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: Re: [PATCH 2/2] Documentation: dt: Document TSC2005 DT binding Date: Mon, 9 Dec 2013 09:46:38 -0800 Message-ID: <20131209174638.GC12527@atomide.com> References: <1386284979-9680-1-git-send-email-sre@debian.org> <1386284979-9680-3-git-send-email-sre@debian.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1386284979-9680-3-git-send-email-sre@debian.org> Sender: linux-kernel-owner@vger.kernel.org To: Sebastian Reichel Cc: Sebastian Reichel , Dmitry Torokhov , Dmitry Torokhov , linux-input@vger.kernel.org, Rob Herring , Pawel Moll , Mark Rutland , Stephen Warren , Ian Campbell , Rob Landley , Grant Likely , devicetree@vger.kernel.org, linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: linux-input@vger.kernel.org * Sebastian Reichel [131205 15:11]: > Add devicetree binding documentation for TSC2005 touchscreen. > > Signed-off-by: Sebastian Reichel > --- > .../bindings/input/touchscreen/tsc2005.txt | 49 ++++++++++++++++++++++ > 1 file changed, 49 insertions(+) > create mode 100644 Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt > > diff --git a/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt b/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt > new file mode 100644 > index 0000000..4e7df0b > --- /dev/null > +++ b/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt > @@ -0,0 +1,49 @@ > +* TSC2005 Touchscreen > + > +Required properties: > + - compatible : "ti,tsc2005" > + - reg : SPI device address > + - spi-max-frequency : Maximal SPI speed > + - interrupts : IRQ specifier > + - reset-gpio : GPIO specifier > + > +Optional properties: > + - ti,fuzz-x : integer, X noise value of the touchscreen > + (defaults to 4) > + - ti,fuzz-y : integer, Y noise value of the touchscreen > + (defaults to 8) > + - ti,fuzz-pressure : integer, pressure noise value of the touchscreen > + (defaults to 2) > + - ti,max-x : integer, maximum reported x value > + (defaults to 4096) > + - ti,max-y : integer, maximum reported y value > + (defaults to 4096) > + - ti,max-pressure : integer, maximum reported pressure > + (defaults to 4096) > + - ti,x-plate-resistance : 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 > + the configured time (in milli seconds), the driver > + will reset it. This is disabled by default. Instead of adding these optional ti,* properties you can set them in the driver directly in the of_match table based on the compatible flag. Then you can pass compatible flag like ti,tsc2005-nokia-n900, or the name of the LCD panel. Most likely these depend on the LCD panel selected. Regards, Tony > +Example: > + > +&mcspi1 { > + tsc2005@0 { > + compatible = "ti,tsc2005"; > + spi-max-frequency = <6000000>; > + reg = <0>; > + reset-gpio = <&gpio4 8 GPIO_ACTIVE_HIGH>; /* 104 */ > + interrupt-parent = <&gpio4>; > + interrupts = <4 IRQ_TYPE_NONE>; /* gpio line 100 */ > + > + ti,fuzz-x = <4>; > + ti,fuzz-y = <7>; > + ti,fuzz-pressure = <2>; > + ti,max-x = <4096>; > + ti,max-y = <4096>; > + ti,max-pressure = <2048>; > + ti,x-plate-resistance = <280>; > + ti,esd-recovery-timeout-ms = <8000>; > + }; > +} > -- > 1.8.4.3 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-omap" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html