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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>
hifive-unleashed-5.1
Dmitry Lifshitz 2014-09-17 15:10:07 +03:00 committed by Tony Lindgren
parent ac84d6cc18
commit 1a3290b813
1 changed files with 61 additions and 0 deletions
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61
arch/arm/boot/dts/omap5-cm-t54.dts
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@ -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 {