diff options
| author | Dmitry Lifshitz <lifshitz@compulab.co.il> | 2014-11-18 11:13:17 +0200 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2014-11-21 16:09:21 -0800 |
| commit | 299e5515b1f2aaf3d67cc0ad1d1994689ae106ab (patch) | |
| tree | 15d121a03b50ab55cff9c1388bad024d7a722efa /arch/arm/boot/dts/omap3-cm-t3x.dtsi | |
| parent | 274ac841f5b9d1da30478c1999d39497a988ab43 (diff) | |
ARM: dts: cm-t3x: add ADS7846 touchscreen support
Add ADS7846 touchscreen support.
Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/boot/dts/omap3-cm-t3x.dtsi')
| -rw-r--r-- | arch/arm/boot/dts/omap3-cm-t3x.dtsi | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/omap3-cm-t3x.dtsi b/arch/arm/boot/dts/omap3-cm-t3x.dtsi index e4c0c562d27b..3636fed56b65 100644 --- a/arch/arm/boot/dts/omap3-cm-t3x.dtsi +++ b/arch/arm/boot/dts/omap3-cm-t3x.dtsi @@ -49,6 +49,13 @@ compatible = "usb-nop-xceiv"; vcc-supply = <&hsusb2_power>; }; + + ads7846reg: ads7846-reg { + compatible = "regulator-fixed"; + regulator-name = "ads7846-reg"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; }; &omap3_pmx_core { @@ -115,6 +122,21 @@ OMAP3_CORE1_IOPAD(0x20e6, PIN_OUTPUT | MUX_MODE0) /* dss_data5.dss_data5 */ >; }; + + ads7846_pins: pinmux_ads7846_pins { + pinctrl-single,pins = < + OMAP3_CORE1_IOPAD(0x20ba, PIN_INPUT_PULLUP | MUX_MODE4) /* gpmc_ncs6.gpio_57 */ + >; + }; + + mcspi1_pins: pinmux_mcspi1_pins { + pinctrl-single,pins = < + OMAP3_CORE1_IOPAD(0x21c8, PIN_INPUT | MUX_MODE0) /* mcspi1_clk */ + OMAP3_CORE1_IOPAD(0x21ca, PIN_INPUT | MUX_MODE0) /* mcspi1_simo */ + OMAP3_CORE1_IOPAD(0x21cc, PIN_INPUT | MUX_MODE0) /* mcspi1_somi */ + OMAP3_CORE1_IOPAD(0x21ce, PIN_INPUT_PULLDOWN | MUX_MODE0) /* mcspi1_cs0 */ + >; + }; }; &uart3 { @@ -147,3 +169,38 @@ &usbhsehci { phys = <&hsusb1_phy &hsusb2_phy>; }; + +&mcspi1 { + pinctrl-names = "default"; + pinctrl-0 = <&mcspi1_pins>; + + /* touch controller */ + ads7846@0 { + pinctrl-names = "default"; + pinctrl-0 = <&ads7846_pins>; + + compatible = "ti,ads7846"; + vcc-supply = <&ads7846reg>; + + reg = <0>; /* CS0 */ + spi-max-frequency = <1500000>; + + interrupt-parent = <&gpio2>; + interrupts = <25 0>; /* gpio_57 */ + pendown-gpio = <&gpio2 25 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 <30>; + ti,debounce-tol = /bits/ 16 <10>; + ti,debounce-rep = /bits/ 16 <1>; + + linux,wakeup; + }; +}; |