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ARM: dts: ux500: Add Cypress CTTYSP touch to TVK UIB

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The TVK1281618 R3 UIB has a Cypress CTTYSP touchscreen.
Add it to the device tree file.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij
2021-03-23 10:32:59 +01:00
parent f9bf6cb246
commit fa99edd84f
1 changed files with 46 additions and 0 deletions
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46
arch/arm/boot/dts/ste-href-tvk1281618-r3.dtsi
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@@ -118,6 +118,38 @@ pressure@5c {
};
};
spi@80111000 {
num-cs = <1>;
cs-gpios = <&gpio6 24 GPIO_ACTIVE_LOW>;
pinctrl-names = "default";
pinctrl-0 = <&spi2_default_mode>;
status = "okay";
touchscreen@0 {
compatible = "cypress,cy8ctma340";
/*
* Actually the max frequency is 6 MHz, but over 2 MHz the
* data rate needs to be restricted to max 2Mbps which the
* SPI framework cannot handle.
*/
spi-max-frequency = <2000000>;
reg = <0>;
interrupt-parent = <&gpio2>;
interrupts = <20 IRQ_TYPE_EDGE_FALLING>;
vcpin-supply = <&ab8500_ldo_aux1_reg>;
vdd-supply = <&db8500_vsmps2_reg>;
reset-gpios = <&gpio4 15 GPIO_ACTIVE_LOW>;
touchscreen-size-x = <480>;
touchscreen-size-y = <854>;
active-interval-ms = <0>;
touch-timeout-ms = <255>;
lowpower-interval-ms = <10>;
bootloader-key = /bits/ 8 <0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07>;
pinctrl-names = "default";
pinctrl-0 = <&cyttsp_tvk_mode>;
};
};
mcde@a0350000 {
status = "okay";
@@ -167,6 +199,20 @@ tvk_cfg {
};
};
};
cyttsp {
cyttsp_tvk_mode: cyttsp_tvk {
/* Touchscreen uses GPIO84 for IRQ */
tvk_cfg1 {
pins = "GPIO84_C2";
ste,config = <&gpio_in_pu>;
};
/* GPIO143 is reset */
tvk_cfg2 {
pins = "GPIO143_D12";
ste,config = <&gpio_out_hi>;
};
};
};
};
};
};