linux-kernel - [PATCH v4 09/11] arm64: dts: freescale: sl28: map GPIOs to input events

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20200604211039.12689-10-michael@walle.cc>
Date:   Thu,  4 Jun 2020 23:10:37 +0200
From:   Michael Walle <michael@...le.cc>
To:     linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-hwmon@...r.kernel.org,
        linux-pwm@...r.kernel.org, linux-watchdog@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Lee Jones <lee.jones@...aro.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Shawn Guo <shawnguo@...nel.org>, Li Yang <leoyang.li@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <maz@...nel.org>, Mark Brown <broonie@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Michael Walle <michael@...le.cc>
Subject: [PATCH v4 09/11] arm64: dts: freescale: sl28: map GPIOs to input events

Now that we have support for GPIO lines of the SMARC connector, map the
sleep, power and lid switch signals to the corresponding keys using the
gpio-keys and gpio-keys-polled drivers. The power and sleep signals have
dedicated interrupts, thus we use these ones. The lid switch is just
mapped to a GPIO input and needs polling.

Signed-off-by: Michael Walle <michael@...le.cc>
---
 .../freescale/fsl-ls1028a-kontron-sl28.dts    | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28.dts
index 8712fe82727b..c4fd99efdbba 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28.dts
@@ -9,6 +9,8 @@
 /dts-v1/;
 #include "fsl-ls1028a.dtsi"
 #include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
 
 / {
 	model = "Kontron SMARC-sAL28";
@@ -23,6 +25,36 @@
 		spi1 = &dspi2;
 	};
 
+	buttons0 {
+		compatible = "gpio-keys";
+
+		power-button {
+			interrupts-extended = <&sl28cpld_intc
+					       4 IRQ_TYPE_EDGE_BOTH>;
+			linux,code = <KEY_POWER>;
+			label = "Power";
+		};
+
+		sleep-button {
+			interrupts-extended = <&sl28cpld_intc
+					       5 IRQ_TYPE_EDGE_BOTH>;
+			linux,code = <KEY_SLEEP>;
+			label = "Sleep";
+		};
+	};
+
+	buttons1 {
+		compatible = "gpio-keys-polled";
+		poll-interval = <200>;
+
+		lid-switch {
+			linux,input-type = <EV_SW>;
+			linux,code = <SW_LID>;
+			gpios = <&sl28cpld_gpio3 4 GPIO_ACTIVE_LOW>;
+			label = "Lid";
+		};
+	};
+
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};
-- 
2.20.1