linux-kernel - [PATCH] arm64: dts: rockchip: enable touchpad button for rk3399-gru-kevin

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Message-Id: <20171009184028.11829-1-kernel@esmil.dk>
Date:   Mon,  9 Oct 2017 20:40:28 +0200
From:   Emil Renner Berthing <kernel@...il.dk>
To:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Cc:     Heiko Stuebner <heiko@...ech.de>,
        Brian Norris <briannorris@...omium.org>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Emil Renner Berthing <kernel@...il.dk>
Subject: [PATCH] arm64: dts: rockchip: enable touchpad button for rk3399-gru-kevin

Adding the linux,gpio-keymap entry also has
the side-effect of making the driver register
the touchpad as a touchpad rather than another
touchscreen.

The index for BTN_LEFT was found by trial and error.

Signed-off-by: Emil Renner Berthing <kernel@...il.dk>
---
 arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts b/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts
index 5c8621766908..1c58d12551f5 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts
@@ -278,6 +278,10 @@ ap_i2c_dig: &i2c2 {
 		pinctrl-0 = <&trackpad_int_l>;
 		interrupt-parent = <&gpio1>;
 		interrupts = <4 IRQ_TYPE_LEVEL_LOW>;
+		linux,gpio-keymap = <KEY_RESERVED
+				     KEY_RESERVED
+				     KEY_RESERVED
+				     BTN_LEFT>;
 		wakeup-source;
 	};
 };
-- 
2.14.2