lkml.org 
[lkml]   [2020]   [Nov]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2] ARM: dts: imx50-kobo-aura: Enable eKTF2132 touchscreen
Date
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>
---

v2:
- Fix devicetree build by adding #include <dt-bindings/interrupt-controller/irq.h>
- Drop the first two patches, which been applied in the meantime

v1:
- https://lore.kernel.org/lkml/20201106112412.390724-4-j.neuschaefer@gmx.net/
---
arch/arm/boot/dts/imx50-kobo-aura.dts | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx50-kobo-aura.dts b/arch/arm/boot/dts/imx50-kobo-aura.dts
index 53b3995d37e7f..97cfd970fe742 100644
--- a/arch/arm/boot/dts/imx50-kobo-aura.dts
+++ b/arch/arm/boot/dts/imx50-kobo-aura.dts
@@ -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 @@ &i2c1 {
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 @@ MX50_PAD_SD3_D7__ESDHC3_DAT7 0x1d4
>;
};

+ 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
--
2.28.0
\
 
 \ /
  Last update: 2020-11-13 00:31    [W:0.045 / U:0.676 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site