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authorAnthoine Bourgeois <anthoine.bourgeois@gmail.com>2015-08-06 00:47:09 +0300
committerTony Lindgren <tony@atomide.com>2015-08-06 12:43:09 +0300
commited05637c30e6d13e5793aab64d6a6e57e30228af (patch)
tree013b3ba58107fd7100bed3b06d936a7bda1cd4b9 /arch/arm/boot/dts/omap3-devkit8000-lcd-common.dtsi
parent98c6d5552d45d4c2308c5890ac8fa70d640e50b8 (diff)
downloadlinux-ed05637c30e6d13e5793aab64d6a6e57e30228af.tar.xz
ARM: dts: omap3-devkit8000: Add ADS7846 Touchscreen support
This patch is the touchscreen part for LCD screens sold with devkit8000 board. Signed-off-by: Anthoine Bourgeois <anthoine.bourgeois@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/boot/dts/omap3-devkit8000-lcd-common.dtsi')
-rw-r--r--arch/arm/boot/dts/omap3-devkit8000-lcd-common.dtsi35
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/omap3-devkit8000-lcd-common.dtsi b/arch/arm/boot/dts/omap3-devkit8000-lcd-common.dtsi
index 332766d12b3a..e84184de2a4a 100644
--- a/arch/arm/boot/dts/omap3-devkit8000-lcd-common.dtsi
+++ b/arch/arm/boot/dts/omap3-devkit8000-lcd-common.dtsi
@@ -36,3 +36,38 @@
};
};
};
+
+&vio {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+};
+
+&mcspi2 {
+
+ /* touch controller */
+ ads7846@0 {
+ compatible = "ti,ads7846";
+ vcc-supply = <&vio>;
+
+ reg = <0>; /* CS0 */
+ spi-max-frequency = <1500000>;
+
+ interrupt-parent = <&gpio1>;
+ interrupts = <27 0>; /* gpio_27 */
+ pendown-gpio = <&gpio1 27 0>;
+
+ ti,x-min = /bits/ 16 <0x0>;
+ ti,x-max = /bits/ 16 <0x0fff>;
+ ti,y-min = /bits/ 16 <0x0>;
+ ti,y-max = /bits/ 16 <0x0fff>;
+ ti,x-plate-ohms = /bits/ 16 <180>;
+ ti,pressure-max = /bits/ 16 <255>;
+ ti,debounce-max = /bits/ 16 <10>;
+ ti,debounce-tol = /bits/ 16 <5>;
+ ti,debounce-rep = /bits/ 16 <1>;
+ ti,keep-vref-on = <1>;
+ ti,settle-delay-usec = /bits/ 16 <150>;
+
+ linux,wakeup;
+ };
+};