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| author | Dmitry Lifshitz <lifshitz@compulab.co.il> | 2014-09-17 14:10:07 +0200 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2014-09-18 18:07:52 +0200 |
| commit | 1a3290b813ee71843480ece01493e23a2f4a807a (patch) | |
| tree | 81ba1fc9defd41edb01ec530fd6ba1f00bf40040 | |
| parent | ARM: dts: cm-t54: add Startek LCD support (diff) | |
| download | linux-1a3290b813ee71843480ece01493e23a2f4a807a.tar.xz linux-1a3290b813ee71843480ece01493e23a2f4a807a.zip | |
ARM: dts: cm-t54: 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>
| -rw-r--r-- | arch/arm/boot/dts/omap5-cm-t54.dts | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/omap5-cm-t54.dts b/arch/arm/boot/dts/omap5-cm-t54.dts index 7323b7078cdd..88f3dc6f1835 100644 --- a/arch/arm/boot/dts/omap5-cm-t54.dts +++ b/arch/arm/boot/dts/omap5-cm-t54.dts @@ -51,6 +51,13 @@ enable-active-high; }; + ads7846reg: ads7846-reg { + compatible = "regulator-fixed"; + regulator-name = "ads7846-reg"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; + /* HS USB Host PHY on PORT 2 */ hsusb2_phy: hsusb2_phy { compatible = "usb-nop-xceiv"; @@ -164,6 +171,15 @@ }; }; +&omap5_pmx_wkup { + + ads7846_pins: pinmux_ads7846_pins { + pinctrl-single,pins = < + 0x02 (PIN_INPUT_PULLDOWN | MUX_MODE6) /* llib_wakereqin.gpio1_wk15 */ + >; + }; +}; + &omap5_pmx_core { pinctrl-names = "default"; pinctrl-0 = < @@ -300,6 +316,51 @@ OMAP5_IOPAD(0x013a, PIN_OUTPUT | MUX_MODE3) /* gpio6_187.dispc_data23 */ >; }; + + mcspi2_pins: pinmux_mcspi1_pins { + pinctrl-single,pins = < + OMAP5_IOPAD(0x00fc, PIN_INPUT | MUX_MODE0) /* mcspi2_clk */ + OMAP5_IOPAD(0x00fe, PIN_INPUT | MUX_MODE0) /* mcspi2_simo */ + OMAP5_IOPAD(0x0100, PIN_INPUT | MUX_MODE0) /* mcspi2_somi */ + OMAP5_IOPAD(0x0102, PIN_INPUT | MUX_MODE0) /* mcspi2_cs0 */ + >; + }; +}; + +&mcspi2 { + pinctrl-names = "default"; + pinctrl-0 = <&mcspi2_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 = <&gpio1>; + interrupts = <15 0>; /* gpio1_wk15 */ + pendown-gpio = <&gpio1 15 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; + }; }; &mmc1 { |