From 3866db63d94b39ca441e6d94b4f19ec8ce9bf996 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Filip=20Matijevi=C4=87?= <filip.matijevic.pz@gmail.com>
Date: Mon, 13 Nov 2017 17:20:42 +0100
Subject: [PATCH 07/11] ARM: dts: N9/N950: Add touchscreen support
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Signed-off-by: Filip Matijević <filip.matijevic.pz@gmail.com>
---
arch/arm/boot/dts/omap3-n950-n9.dtsi | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/arch/arm/boot/dts/omap3-n950-n9.dtsi b/arch/arm/boot/dts/omap3-n950-n9.dtsi
index 0d9b85317529..219519812050 100644
--- a/arch/arm/boot/dts/omap3-n950-n9.dtsi
+++ b/arch/arm/boot/dts/omap3-n950-n9.dtsi
@@ -141,6 +141,14 @@
OMAP3_CORE1_IOPAD(0x217a, PIN_INPUT | MUX_MODE0) /* uart2_rx */
>;
};
+
+ ts_pins: pinmux_ts_pins {
+ pinctrl-single,pins = <
+ /* REVISIT pinmuxing gpmc_nbe1 to gpio_61 breaks Atmel maXTouch */
+ /*OMAP3_CORE1_IOPAD(0x20c8, PIN_INPUT | MUX_MODE4)*/ /* gpmc_nbe1.gpio_61 -> TINTX */
+ OMAP3_CORE1_IOPAD(0x20f2, PIN_OUTPUT | MUX_MODE4) /* dss_data11.gpio_81 -> TRESX */
+ >;
+ };
};
&omap3_pmx_core2 {
@@ -199,6 +207,7 @@
regulator-name = "vaux1";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
+ regulator-always-on; /* needed for Atmel maXTouch */
};
/* CSI-2 receiver */
@@ -261,6 +270,7 @@
regulator-name = "vio";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
+ regulator-always-on; /* needed for Atmel maXTouch */
};
&i2c2 {
@@ -283,6 +293,18 @@
led-max-microamp = <10000>;
};
};
+
+ touch@4b {
+ compatible = "atmel,maxtouch";
+ reg = <0x4b>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&ts_pins>;
+
+ interrupt-parent = <&gpio2>;
+ interrupts = <29 IRQ_TYPE_EDGE_FALLING>; /* gpio_61 */
+ reset-gpios = <&gpio3 17 0>; /* gpio_81 */
+ };
};
&i2c3 {
--
2.17.0