From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/drivers/input/misc/retu-pwrbutton.c | 97 ++++++++++++++++++++++++++++++ 1 file changed, 97 insertions(+) create mode 100644 kernel/drivers/input/misc/retu-pwrbutton.c (limited to 'kernel/drivers/input/misc/retu-pwrbutton.c') diff --git a/kernel/drivers/input/misc/retu-pwrbutton.c b/kernel/drivers/input/misc/retu-pwrbutton.c new file mode 100644 index 000000000..0c8ac60e2 --- /dev/null +++ b/kernel/drivers/input/misc/retu-pwrbutton.c @@ -0,0 +1,97 @@ +/* + * Retu power button driver. + * + * Copyright (C) 2004-2010 Nokia Corporation + * + * Original code written by Ari Saastamoinen, Juha Yrjölä and Felipe Balbi. + * Rewritten by Aaro Koskinen. + * + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file "COPYING" in the main directory of this + * archive for more details. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define RETU_STATUS_PWRONX (1 << 5) + +static irqreturn_t retu_pwrbutton_irq(int irq, void *_pwr) +{ + struct input_dev *idev = _pwr; + struct retu_dev *rdev = input_get_drvdata(idev); + bool state; + + state = !(retu_read(rdev, RETU_REG_STATUS) & RETU_STATUS_PWRONX); + input_report_key(idev, KEY_POWER, state); + input_sync(idev); + + return IRQ_HANDLED; +} + +static int retu_pwrbutton_probe(struct platform_device *pdev) +{ + struct retu_dev *rdev = dev_get_drvdata(pdev->dev.parent); + struct input_dev *idev; + int irq; + int error; + + irq = platform_get_irq(pdev, 0); + if (irq < 0) + return irq; + + idev = devm_input_allocate_device(&pdev->dev); + if (!idev) + return -ENOMEM; + + idev->name = "retu-pwrbutton"; + idev->dev.parent = &pdev->dev; + + input_set_capability(idev, EV_KEY, KEY_POWER); + input_set_drvdata(idev, rdev); + + error = devm_request_threaded_irq(&pdev->dev, irq, + NULL, retu_pwrbutton_irq, 0, + "retu-pwrbutton", idev); + if (error) + return error; + + error = input_register_device(idev); + if (error) + return error; + + return 0; +} + +static int retu_pwrbutton_remove(struct platform_device *pdev) +{ + return 0; +} + +static struct platform_driver retu_pwrbutton_driver = { + .probe = retu_pwrbutton_probe, + .remove = retu_pwrbutton_remove, + .driver = { + .name = "retu-pwrbutton", + }, +}; +module_platform_driver(retu_pwrbutton_driver); + +MODULE_ALIAS("platform:retu-pwrbutton"); +MODULE_DESCRIPTION("Retu Power Button"); +MODULE_AUTHOR("Ari Saastamoinen"); +MODULE_AUTHOR("Felipe Balbi"); +MODULE_AUTHOR("Aaro Koskinen "); +MODULE_LICENSE("GPL"); -- cgit 1.2.3-korg