diff options
Diffstat (limited to 'drivers/input/misc/da9052_onkey.c')
| -rw-r--r-- | drivers/input/misc/da9052_onkey.c | 43 |
1 files changed, 19 insertions, 24 deletions
diff --git a/drivers/input/misc/da9052_onkey.c b/drivers/input/misc/da9052_onkey.c index 020569a499f2..cc23625019e3 100644 --- a/drivers/input/misc/da9052_onkey.c +++ b/drivers/input/misc/da9052_onkey.c @@ -1,17 +1,12 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * ON pin driver for Dialog DA9052 PMICs * * Copyright(c) 2012 Dialog Semiconductor Ltd. * * Author: David Dajun Chen <dchen@diasemi.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ -#include <linux/init.h> #include <linux/input.h> #include <linux/module.h> #include <linux/platform_device.h> @@ -28,29 +23,32 @@ struct da9052_onkey { static void da9052_onkey_query(struct da9052_onkey *onkey) { - int key_stat; + int ret; - key_stat = da9052_reg_read(onkey->da9052, DA9052_EVENT_B_REG); - if (key_stat < 0) { + ret = da9052_reg_read(onkey->da9052, DA9052_STATUS_A_REG); + if (ret < 0) { dev_err(onkey->da9052->dev, - "Failed to read onkey event %d\n", key_stat); + "Failed to read onkey event err=%d\n", ret); } else { /* * Since interrupt for deassertion of ONKEY pin is not * generated, onkey event state determines the onkey * button state. */ - key_stat &= DA9052_EVENTB_ENONKEY; - input_report_key(onkey->input, KEY_POWER, key_stat); + bool pressed = !(ret & DA9052_STATUSA_NONKEY); + + input_report_key(onkey->input, KEY_POWER, pressed); input_sync(onkey->input); - } - /* - * Interrupt is generated only when the ONKEY pin is asserted. - * Hence the deassertion of the pin is simulated through work queue. - */ - if (key_stat) - schedule_delayed_work(&onkey->work, msecs_to_jiffies(50)); + /* + * Interrupt is generated only when the ONKEY pin + * is asserted. Hence the deassertion of the pin + * is simulated through work queue. + */ + if (pressed) + schedule_delayed_work(&onkey->work, + msecs_to_jiffies(50)); + } } static void da9052_onkey_work(struct work_struct *work) @@ -129,7 +127,7 @@ err_free_mem: return error; } -static int da9052_onkey_remove(struct platform_device *pdev) +static void da9052_onkey_remove(struct platform_device *pdev) { struct da9052_onkey *onkey = platform_get_drvdata(pdev); @@ -138,16 +136,13 @@ static int da9052_onkey_remove(struct platform_device *pdev) input_unregister_device(onkey->input); kfree(onkey); - - return 0; } static struct platform_driver da9052_onkey_driver = { .probe = da9052_onkey_probe, .remove = da9052_onkey_remove, - .driver = { + .driver = { .name = "da9052-onkey", - .owner = THIS_MODULE, }, }; module_platform_driver(da9052_onkey_driver); |