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ARM: OMAP2+: LogicPD Torpedo: Add Touchscreen Support

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The development kit uses a TSC2004 chip attached to I2C3.

Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Adam Ford 2015-12-20 09:26:15 -06:00 committed by Tony Lindgren
parent fcf589581b
commit 6c95771f8c
1 changed files with 27 additions and 0 deletions
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27
arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
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@ -204,6 +204,12 @@
>;
};
tsc2004_pins: pinmux_tsc2004_pins {
pinctrl-single,pins = <
OMAP3_CORE1_IOPAD(0x2186, PIN_INPUT | MUX_MODE4) /* mcbsp4_dr.gpio_153 */
>;
};
backlight_pins: pinmux_backlight_pins {
pinctrl-single,pins = <
OMAP3_CORE1_IOPAD(0x20B8, PIN_OUTPUT | MUX_MODE4) /* gpmc_ncs5.gpio_56 */
@ -262,6 +268,27 @@
};
};
&i2c3 {
touchscreen: tsc2004@48 {
compatible = "ti,tsc2004";
reg = <0x48>;
vio-supply = <&vaux1>;
pinctrl-names = "default";
pinctrl-0 = <&tsc2004_pins>;
interrupts-extended = <&gpio5 25 IRQ_TYPE_EDGE_RISING>; /* gpio 153 */
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>;
};
};
&uart1 {
interrupts-extended = <&intc 72 &omap3_pmx_core OMAP3_UART1_RX>;
};