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ARM: dts: imx50-kobo-aura: Enable eKTF2132 touchscreen

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The Kobo Aura has an eKTF2132 touchscreen controller.

Although the vendor kernel toggles a reset pin (GPIO5-12) during the
startup sequence, the touchscreen works without it.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Jonathan Neuschäfer 2020-11-13 00:30:54 +01:00 committed by Shawn Guo
parent 21658d51cf
commit b9639a8b5e
1 changed files with 16 additions and 1 deletions
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17
arch/arm/boot/dts/imx50-kobo-aura.dts
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@ -6,6 +6,7 @@
/dts-v1/;
#include "imx50.dtsi"
#include <dt-bindings/input/input.h>
#include <dt-bindings/interrupt-controller/irq.h>
/ {
model = "Kobo Aura (N514)";
@ -119,7 +120,14 @@
pinctrl-0 = <&pinctrl_i2c1>;
status = "okay";
/* TODO: ektf2132 touch controller at 0x15 */
touchscreen@15 {
reg = <0x15>;
compatible = "elan,ektf2132";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_ts>;
power-gpios = <&gpio4 9 GPIO_ACTIVE_HIGH>;
interrupts-extended = <&gpio5 13 IRQ_TYPE_EDGE_FALLING>;
};
};
&i2c2 {
@ -225,6 +233,13 @@
>;
};
pinctrl_ts: tsgrp {
fsl,pins = <
MX50_PAD_CSPI_MOSI__GPIO4_9 0x0
MX50_PAD_SD2_D5__GPIO5_13 0x0
>;
};
pinctrl_uart2: uart2grp {
fsl,pins = <
MX50_PAD_UART2_TXD__UART2_TXD_MUX 0x1e4