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Input: mh248 - register input device

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Signed-off-by: Wangqiang Guo <kay.guo@rock-chips.com>
Change-Id: I37b3a1be656dc94cefcecc5026a5838f898e4966
This commit is contained in:
Wangqiang Guo
2021-08-05 07:51:30 +00:00
committed by Tao Huang
parent 08b823c049
commit 7a101ebabb
1 changed files with 31 additions and 22 deletions
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53
drivers/input/sensors/hall/mh248.c
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@@ -1,20 +1,11 @@
/*
* drivers/input/sensors/hall/mh248.c
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2020 Rockchip Electronics Co. Ltd.
*
* Copyright (C) 2012-2016 Rockchip Co.,Ltd.
* Author: Bin Yang <yangbin@rock-chips.com>
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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/i2c.h>
@@ -33,11 +24,13 @@
#include <linux/fb.h>
#include <linux/notifier.h>
#include <linux/rk_keys.h>
#include <linux/input.h>
struct mh248_para {
struct device *dev;
struct notifier_block fb_notif;
struct mutex ops_lock;
struct input_dev *hall_input;
int is_suspend;
int gpio_pin;
int irq;
@@ -75,14 +68,18 @@ static irqreturn_t hall_mh248_interrupt(int irq, void *dev_id)
int gpio_value = 0;
gpio_value = gpio_get_value(mh248->gpio_pin);
if ((gpio_value != mh248->active_value) &&
(mh248->is_suspend == 0)) {
rk_send_power_key(1);
rk_send_power_key(0);
input_report_key(mh248->hall_input, KEY_POWER, 1);
input_sync(mh248->hall_input);
input_report_key(mh248->hall_input, KEY_POWER, 0);
input_sync(mh248->hall_input);
} else if ((gpio_value == mh248->active_value) &&
(mh248->is_suspend == 1)) {
rk_send_wakeup_key();
input_report_key(mh248->hall_input, KEY_WAKEUP, 1);
input_sync(mh248->hall_input);
input_report_key(mh248->hall_input, KEY_WAKEUP, 0);
input_sync(mh248->hall_input);
}
return IRQ_HANDLED;
@@ -94,7 +91,6 @@ static int hall_mh248_probe(struct platform_device *pdev)
struct mh248_para *mh248;
enum of_gpio_flags irq_flags;
int hallactive = 0;
int gpio_value = 0;
int ret = 0;
mh248 = devm_kzalloc(&pdev->dev, sizeof(*mh248), GFP_KERNEL);
@@ -104,7 +100,7 @@ static int hall_mh248_probe(struct platform_device *pdev)
mh248->dev = &pdev->dev;
mh248->gpio_pin = of_get_named_gpio_flags(np, "irq-gpio",
0, &irq_flags);
0, &irq_flags);
if (!gpio_is_valid(mh248->gpio_pin)) {
dev_err(mh248->dev, "Can not read property irq-gpio\n");
return mh248->gpio_pin;
@@ -119,11 +115,9 @@ static int hall_mh248_probe(struct platform_device *pdev)
ret = devm_gpio_request_one(mh248->dev, mh248->gpio_pin,
GPIOF_DIR_IN, "hall_mh248");
if (ret < 0) {
dev_err(mh248->dev, "fail to request gpio:%d\n",
mh248->gpio_pin);
dev_err(mh248->dev, "fail to request gpio:%d\n", mh248->gpio_pin);
return ret;
}
gpio_value = gpio_get_value(mh248->gpio_pin);
ret = devm_request_threaded_irq(mh248->dev, mh248->irq,
NULL, hall_mh248_interrupt,
@@ -135,6 +129,21 @@ static int hall_mh248_probe(struct platform_device *pdev)
return ret;
}
mh248->hall_input = devm_input_allocate_device(&pdev->dev);
if (!mh248->hall_input) {
dev_err(&pdev->dev, "Can't allocate hall input dev\n");
return -ENOMEM;
}
mh248->hall_input->name = "hall wake key";
input_set_capability(mh248->hall_input, EV_KEY, KEY_POWER);
input_set_capability(mh248->hall_input, EV_KEY, KEY_WAKEUP);
ret = input_register_device(mh248->hall_input);
if (ret) {
dev_err(&pdev->dev, "Unable to register input device, error: %d\n", ret);
return ret;
}
enable_irq_wake(mh248->irq);
mh248->fb_notif.notifier_call = hall_fb_notifier_callback;
fb_register_client(&mh248->fb_notif);