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Date: Thu, 7 Aug 2014 03:08:33 +0200
From: Javier Martinez Canillas <javier.martinez@...labora.co.uk>
To: Kukjin Kim <kgene.kim@...sung.com>
Cc: Sjoerd Simons <sjoerd.simons@...labora.co.uk>,
Dmitry Torokhov <dmitry.torokhov@...il.com>,
Nick Dyer <nick.dyer@...ev.co.uk>,
Stephen Warren <swarren@...dia.com>,
Yufeng Shen <miletus@...omium.org>,
Benson Leung <bleung@...omium.org>,
Doug Anderson <dianders@...omium.org>,
Olof Johansson <olof@...om.net>, linux-input@...r.kernel.org,
devicetree@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
linux-kernel@...r.kernel.org,
Javier Martinez Canillas <javier.martinez@...labora.co.uk>
Subject: [PATCH 1/1] ARM: dts: Add Peach Pit and Pi dts entry for atmel touchpad
From: Sjoerd Simons <sjoerd.simons@...labora.co.uk>
The Peach Pit and Pi boards have an Atmel maXTouch device.
Add the needed Device Tree nodes to support it.
Signed-off-by: Sjoerd Simons <sjoerd.simons@...labora.co.uk>
[javier.martinez: added linux,gpio-keymap property and changed IRQ type]
Signed-off-by: Javier Martinez Canillas <javier.martinez@...labora.co.uk>
---
With only this patch the touchpad is probed but interrupts are not being
generated. The following is needed to have a fully functional touchpad:
[PATCH 1/2] "Input: atmel_mxt_ts - Get IRQ edge/level flags on DT booting"
https://lkml.org/lkml/2014/8/6/585
arch/arm/boot/dts/exynos5420-peach-pit.dts | 29 +++++++++++++++++++++++++++++
arch/arm/boot/dts/exynos5800-peach-pi.dts | 29 +++++++++++++++++++++++++++++
2 files changed, 58 insertions(+)
diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts
index 228a6b1..7dce444 100644
--- a/arch/arm/boot/dts/exynos5420-peach-pit.dts
+++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts
@@ -11,6 +11,7 @@
/dts-v1/;
#include <dt-bindings/input/input.h>
#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
#include "exynos5420.dtsi"
/ {
@@ -157,6 +158,27 @@
};
};
+&hsi2c_8 {
+ status = "okay";
+ clock-frequency = <333000>;
+
+ trackpad@4b {
+ compatible="atmel,maxtouch";
+ reg=<0x4b>;
+ interrupt-parent=<&gpx1>;
+ interrupts=<1 IRQ_TYPE_EDGE_FALLING>;
+ wakeup-source;
+ pinctrl-names = "default";
+ pinctrl-0 = <&trackpad_irq>;
+ linux,gpio-keymap = < BTN_LEFT
+ BTN_TOOL_FINGER
+ BTN_TOOL_DOUBLETAP
+ BTN_TOOL_TRIPLETAP
+ BTN_TOOL_QUADTAP
+ BTN_TOOL_QUINTTAP >;
+ };
+};
+
&hsi2c_9 {
status = "okay";
clock-frequency = <400000>;
@@ -249,6 +271,13 @@
samsung,pin-drv = <0>;
};
+ trackpad_irq: trackpad-irq {
+ samsung,pins = "gpx1-1";
+ samsung,pin-function = <0>;
+ samsung,pin-pud = <0>;
+ samsung,pin-drv = <0>;
+ };
+
power_key_irq: power-key-irq {
samsung,pins = "gpx1-2";
samsung,pin-function = <0>;
diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts
index f3ee48b..de946b3 100644
--- a/arch/arm/boot/dts/exynos5800-peach-pi.dts
+++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts
@@ -11,6 +11,7 @@
/dts-v1/;
#include <dt-bindings/input/input.h>
#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
#include "exynos5800.dtsi"
/ {
@@ -155,6 +156,27 @@
};
};
+&hsi2c_8 {
+ status = "okay";
+ clock-frequency = <333000>;
+
+ trackpad@4b {
+ compatible="atmel,maxtouch";
+ reg=<0x4b>;
+ interrupt-parent=<&gpx1>;
+ interrupts=<1 IRQ_TYPE_EDGE_FALLING>;
+ wakeup-source;
+ pinctrl-names = "default";
+ pinctrl-0 = <&trackpad_irq>;
+ linux,gpio-keymap = < BTN_LEFT
+ BTN_TOOL_FINGER
+ BTN_TOOL_DOUBLETAP
+ BTN_TOOL_TRIPLETAP
+ BTN_TOOL_QUADTAP
+ BTN_TOOL_QUINTTAP >;
+ };
+};
+
&hsi2c_9 {
status = "okay";
clock-frequency = <400000>;
@@ -247,6 +269,13 @@
samsung,pin-drv = <0>;
};
+ trackpad_irq: trackpad-irq {
+ samsung,pins = "gpx1-1";
+ samsung,pin-function = <0>;
+ samsung,pin-pud = <0>;
+ samsung,pin-drv = <0>;
+ };
+
power_key_irq: power-key-irq {
samsung,pins = "gpx1-2";
samsung,pin-function = <0>;
--
2.0.0.rc2
--
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