[PATCH v4 19/21] ARM: dts: imx6ull-colibri: Add touchscreen used with Eval Board

Philippe Schenker
2019-08-12T14:22:37Z

This adds the common touchscreen that is used with Toradex's
Eval Boards.

Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>

---

Changes in v4: None
Changes in v3: None
Changes in v2:
- Removed f0710a, that is downstream only
- Changed to generic node name
- Better comment

.../arm/boot/dts/imx6ull-colibri-eval-v3.dtsi | 24 +++++++++++++++++++
1 file changed, 24 insertions(+)

diff --git a/arch/arm/boot/dts/imx6ull-colibri-eval-v3.dtsi b/arch/arm/boot/dts/imx6ull-colibri-eval-v3.dtsi
index a78849fd2afa..458a4084e53c 100644
--- a/arch/arm/boot/dts/imx6ull-colibri-eval-v3.dtsi
+++ b/arch/arm/boot/dts/imx6ull-colibri-eval-v3.dtsi
@@ -100,6 +100,21 @@
&i2c1 {
status = "okay";

+ /*
+ * Touchscreen is using SODIMM 28/30, also used for PWM, PWM<C>,
+ * aka pwm2, pwm3. so if you enable touchscreen, disable the pwms
+ */
+ touchscreen@4a {
+ compatible = "atmel,maxtouch";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gpiotouch>;
+ reg = <0x4a>;
+ interrupt-parent = <&gpio4>;
+ interrupts = <16 IRQ_TYPE_EDGE_FALLING>; /* SODIMM 28 */
+ reset-gpios = <&gpio2 5 GPIO_ACTIVE_HIGH>; /* SODIMM 30 */
+ status = "disabled";
+ };
+
/* M41T0M6 real time clock on carrier board */
m41t0m6: rtc@68 {
compatible = "st,m41t0";
@@ -176,3 +191,12 @@
sd-uhs-sdr104;
status = "okay";
};
+
+&iomuxc {
+ pinctrl_gpiotouch: touchgpios {
+ fsl,pins = <
+ MX6UL_PAD_NAND_DQS__GPIO4_IO16 0x74
+ MX6UL_PAD_ENET1_TX_EN__GPIO2_IO05 0x14
+ >;
+ };
+};
--
2.22.0