diff options
Diffstat (limited to 'arch/arm/boot/dts/omap4-droid4-xt894.dts')
| -rw-r--r-- | arch/arm/boot/dts/omap4-droid4-xt894.dts | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/omap4-droid4-xt894.dts b/arch/arm/boot/dts/omap4-droid4-xt894.dts index 9070f4b64b08..02fd2d8fa0d1 100644 --- a/arch/arm/boot/dts/omap4-droid4-xt894.dts +++ b/arch/arm/boot/dts/omap4-droid4-xt894.dts @@ -59,6 +59,15 @@ }; }; +&gpio6 { + touchscreen_reset { + gpio-hog; + gpios = <13 0>; + output-high; + line-name = "touchscreen-reset"; + }; +}; + /* L3_2 interconnect is unused, SRAM, GPMC and L3_ICLK2 disabled */ &gpmc { status = "disabled"; @@ -171,6 +180,27 @@ }; }; +/* + * REVISIT: Add gpio173 reset pin handling to the driver, see gpio-hog above. + * If the GPIO reset is used, we probably need to have /lib/firmware/maxtouch.fw + * available. See "mxt-app" and "droid4-touchscreen-firmware" tools for more + * information. + */ +&i2c2 { + tsp@4a { + compatible = "atmel,maxtouch"; + reg = <0x4a>; + pinctrl-names = "default"; + pinctrl-0 = <&touchscreen_pins>; + + /* gpio_183 with sys_nirq2 pad as wakeup */ + interrupts-extended = <&gpio6 23 IRQ_TYPE_EDGE_FALLING + &omap4_pmx_core 0x160>; + interrupt-names = "irq", "wakeup"; + wakeup-source; + }; +}; + /* L3_2 interconnect is unused, SRAM, GPMC and L3_ICLK2 disabled */ &ocmcram { status = "disabled"; @@ -184,6 +214,12 @@ >; }; + touchscreen_pins: pinmux_touchscreen_pins { + pinctrl-single,pins = < + OMAP4_IOPAD(0x1a0, PIN_INPUT_PULLUP | MUX_MODE3) + >; + }; + usb_ulpi_pins: pinmux_usb_ulpi_pins { pinctrl-single,pins = < OMAP4_IOPAD(0x196, MUX_MODE7) |