From: Adam Ford Date: Sun, 20 Dec 2015 15:26:15 +0000 (-0600) Subject: ARM: OMAP2+: LogicPD Torpedo: Add Touchscreen Support X-Git-Tag: v4.5-rc1~43^2~19^2 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=6c95771f8c71cd4dd6ed7ab84a3aea7d509d7704;p=linux.git ARM: OMAP2+: LogicPD Torpedo: Add Touchscreen Support The development kit uses a TSC2004 chip attached to I2C3. Signed-off-by: Adam Ford Signed-off-by: Tony Lindgren --- diff --git a/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts index 6854bda5063f..fb13f18c08cc 100644 --- a/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts +++ b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts @@ -204,6 +204,12 @@ OMAP3_CORE1_IOPAD(0x214e, PIN_INPUT | MUX_MODE0) /* sdmmc1_dat3.sdmmc1_dat3 */ >; }; + 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 @@ OMAP3_WKUP_IOPAD(0x2a54, PIN_INPUT_PULLUP | MUX_MODE4) /* reserved.gpio_127 */ }; }; +&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>; };