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ARM: dts: vf500-colibri: Add device tree node for touchscreen support

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Add device tree node for touchscreen support on Colibri VF50. The
touchscreen functionality on VF50 uses the ADC channels of Vybrid
and some GPIOs. Also add pinctrl nodes for proper pinmux.

Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Sanchayan Maity 2015-09-01 18:06:53 +05:30 committed by Shawn Guo
parent b2bbb1669d
commit 6e994c5a1d
2 changed files with 52 additions and 0 deletions
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5
arch/arm/boot/dts/vf500-colibri-eval-v3.dts
View File

@ -15,3 +15,8 @@
model = "Toradex Colibri VF50 on Colibri Evaluation Board";
compatible = "toradex,vf500-colibri_vf50-on-eval", "toradex,vf500-colibri_vf50", "fsl,vf500";
};
&touchscreen {
vf50-ts-min-pressure = <200>;
status = "okay";
};

47
arch/arm/boot/dts/vf500-colibri.dtsi
View File

@ -17,4 +17,51 @@
memory {
reg = <0x80000000 0x8000000>;
};
touchscreen: vf50-touchscreen {
compatible = "toradex,vf50-touchscreen";
io-channels = <&adc1 0>,<&adc0 0>,
<&adc0 1>,<&adc1 2>;
xp-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
xm-gpios = <&gpio2 29 GPIO_ACTIVE_HIGH>;
yp-gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;
ym-gpios = <&gpio0 4 GPIO_ACTIVE_HIGH>;
interrupt-parent = <&gpio0>;
interrupts = <8 IRQ_TYPE_LEVEL_LOW>;
pinctrl-names = "idle","default","gpios";
pinctrl-0 = <&pinctrl_touchctrl_idle>;
pinctrl-1 = <&pinctrl_touchctrl_default>;
pinctrl-2 = <&pinctrl_touchctrl_gpios>;
vf50-ts-min-pressure = <200>;
status = "disabled";
};
};
&iomuxc {
vf610-colibri {
pinctrl_touchctrl_idle: touchctrl_idle {
fsl,pins = <
VF610_PAD_PTA18__GPIO_8 0x006d
VF610_PAD_PTA19__GPIO_9 0x006c
>;
};
pinctrl_touchctrl_default: touchctrl_default {
fsl,pins = <
VF610_PAD_PTA18__ADC0_SE0 0x0040
VF610_PAD_PTA19__ADC0_SE1 0x0040
VF610_PAD_PTA16__ADC1_SE0 0x0040
VF610_PAD_PTB2__ADC1_SE2 0x0040
>;
};
pinctrl_touchctrl_gpios: touchctrl_gpios {
fsl,pins = <
VF610_PAD_PTA23__GPIO_13 0x22e9
VF610_PAD_PTB23__GPIO_93 0x22e9
VF610_PAD_PTA22__GPIO_12 0x22e9
VF610_PAD_PTA11__GPIO_4 0x22e9
>;
};
};
};