mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-27 14:14:24 +08:00
0bec8b7e5c
We don't need dev_err() messages when platform_get_irq() fails now that
platform_get_irq() prints an error message itself when something goes
wrong. Let's remove these prints with a simple semantic patch.
// <smpl>
@@
expression ret;
struct platform_device *E;
@@
ret =
(
platform_get_irq(E, ...)
|
platform_get_irq_byname(E, ...)
);
if ( \( ret < 0 \| ret <= 0 \) )
{
(
-if (ret != -EPROBE_DEFER)
-{ ...
-dev_err(...);
-... }
|
...
-dev_err(...);
)
...
}
// </smpl>
While we're here, remove braces on if statements that only have one
statement (manually).
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
130 lines
3.2 KiB
C
130 lines
3.2 KiB
C
/*
|
|
* Hisilicon PMIC powerkey driver
|
|
*
|
|
* Copyright (C) 2013 Hisilicon Ltd.
|
|
* Copyright (C) 2015, 2016 Linaro Ltd.
|
|
*
|
|
* 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 <linux/platform_device.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/reboot.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/of_irq.h>
|
|
#include <linux/input.h>
|
|
#include <linux/slab.h>
|
|
|
|
/* the held interrupt will trigger after 4 seconds */
|
|
#define MAX_HELD_TIME (4 * MSEC_PER_SEC)
|
|
|
|
static irqreturn_t hi65xx_power_press_isr(int irq, void *q)
|
|
{
|
|
struct input_dev *input = q;
|
|
|
|
pm_wakeup_event(input->dev.parent, MAX_HELD_TIME);
|
|
input_report_key(input, KEY_POWER, 1);
|
|
input_sync(input);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static irqreturn_t hi65xx_power_release_isr(int irq, void *q)
|
|
{
|
|
struct input_dev *input = q;
|
|
|
|
pm_wakeup_event(input->dev.parent, MAX_HELD_TIME);
|
|
input_report_key(input, KEY_POWER, 0);
|
|
input_sync(input);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static irqreturn_t hi65xx_restart_toggle_isr(int irq, void *q)
|
|
{
|
|
struct input_dev *input = q;
|
|
int value = test_bit(KEY_RESTART, input->key);
|
|
|
|
pm_wakeup_event(input->dev.parent, MAX_HELD_TIME);
|
|
input_report_key(input, KEY_RESTART, !value);
|
|
input_sync(input);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static const struct {
|
|
const char *name;
|
|
irqreturn_t (*handler)(int irq, void *q);
|
|
} hi65xx_irq_info[] = {
|
|
{ "down", hi65xx_power_press_isr },
|
|
{ "up", hi65xx_power_release_isr },
|
|
{ "hold 4s", hi65xx_restart_toggle_isr },
|
|
};
|
|
|
|
static int hi65xx_powerkey_probe(struct platform_device *pdev)
|
|
{
|
|
struct device *dev = &pdev->dev;
|
|
struct input_dev *input;
|
|
int irq, i, error;
|
|
|
|
input = devm_input_allocate_device(dev);
|
|
if (!input) {
|
|
dev_err(dev, "failed to allocate input device\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
input->phys = "hisi_on/input0";
|
|
input->name = "HISI 65xx PowerOn Key";
|
|
|
|
input_set_capability(input, EV_KEY, KEY_POWER);
|
|
input_set_capability(input, EV_KEY, KEY_RESTART);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(hi65xx_irq_info); i++) {
|
|
|
|
irq = platform_get_irq_byname(pdev, hi65xx_irq_info[i].name);
|
|
if (irq < 0)
|
|
return irq;
|
|
|
|
error = devm_request_any_context_irq(dev, irq,
|
|
hi65xx_irq_info[i].handler,
|
|
IRQF_ONESHOT,
|
|
hi65xx_irq_info[i].name,
|
|
input);
|
|
if (error < 0) {
|
|
dev_err(dev, "couldn't request irq %s: %d\n",
|
|
hi65xx_irq_info[i].name, error);
|
|
return error;
|
|
}
|
|
}
|
|
|
|
error = input_register_device(input);
|
|
if (error) {
|
|
dev_err(dev, "failed to register input device: %d\n", error);
|
|
return error;
|
|
}
|
|
|
|
device_init_wakeup(dev, 1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver hi65xx_powerkey_driver = {
|
|
.driver = {
|
|
.name = "hi65xx-powerkey",
|
|
},
|
|
.probe = hi65xx_powerkey_probe,
|
|
};
|
|
module_platform_driver(hi65xx_powerkey_driver);
|
|
|
|
MODULE_AUTHOR("Zhiliang Xue <xuezhiliang@huawei.com");
|
|
MODULE_DESCRIPTION("Hisi PMIC Power key driver");
|
|
MODULE_LICENSE("GPL v2");
|