43 	struct mh248_para *mh248;  in hall_fb_notifier_callback()  local
46 	mh248 = container_of(self, struct mh248_para, fb_notif);  in hall_fb_notifier_callback()
51 	mutex_lock(&mh248->ops_lock);  in hall_fb_notifier_callback()
54 		mh248->is_suspend = 0;  in hall_fb_notifier_callback()
57 		mh248->is_suspend = 1;  in hall_fb_notifier_callback()
60 	mutex_unlock(&mh248->ops_lock);  in hall_fb_notifier_callback()
67 	struct mh248_para *mh248 = (struct mh248_para *)dev_id;  in hall_mh248_interrupt()  local
70 	gpio_value = gpio_get_value(mh248->gpio_pin);  in hall_mh248_interrupt()
71 	if ((gpio_value != mh248->active_value) &&  in hall_mh248_interrupt()
72 	    (mh248->is_suspend == 0)) {  in hall_mh248_interrupt()
73 		input_report_key(mh248->hall_input, KEY_POWER, 1);  in hall_mh248_interrupt()
74 		input_sync(mh248->hall_input);  in hall_mh248_interrupt()
75 		input_report_key(mh248->hall_input, KEY_POWER, 0);  in hall_mh248_interrupt()
76 		input_sync(mh248->hall_input);  in hall_mh248_interrupt()
77 	} else if ((gpio_value == mh248->active_value) &&  in hall_mh248_interrupt()
78 		   (mh248->is_suspend == 1)) {  in hall_mh248_interrupt()
79 		input_report_key(mh248->hall_input, KEY_WAKEUP, 1);  in hall_mh248_interrupt()
80 		input_sync(mh248->hall_input);  in hall_mh248_interrupt()
81 		input_report_key(mh248->hall_input, KEY_WAKEUP, 0);  in hall_mh248_interrupt()
82 		input_sync(mh248->hall_input);  in hall_mh248_interrupt()
91 	struct mh248_para *mh248;  in hall_mh248_probe()  local
96 	mh248 = devm_kzalloc(&pdev->dev, sizeof(*mh248), GFP_KERNEL);  in hall_mh248_probe()
97 	if (!mh248)  in hall_mh248_probe()
100 	mh248->dev = &pdev->dev;  in hall_mh248_probe()
102 	mh248->gpio_pin = of_get_named_gpio_flags(np, "irq-gpio",  in hall_mh248_probe()
104 	if (!gpio_is_valid(mh248->gpio_pin)) {  in hall_mh248_probe()
105 		dev_err(mh248->dev, "Can not read property irq-gpio\n");  in hall_mh248_probe()
106 		return mh248->gpio_pin;  in hall_mh248_probe()
108 	mh248->irq = gpio_to_irq(mh248->gpio_pin);  in hall_mh248_probe()
111 	mh248->active_value = hallactive;  in hall_mh248_probe()
112 	mh248->is_suspend = 0;  in hall_mh248_probe()
113 	mutex_init(&mh248->ops_lock);  in hall_mh248_probe()
115 	ret = devm_gpio_request_one(mh248->dev, mh248->gpio_pin,  in hall_mh248_probe()
118 		dev_err(mh248->dev, "fail to request gpio:%d\n", mh248->gpio_pin);  in hall_mh248_probe()
122 	ret = devm_request_threaded_irq(mh248->dev, mh248->irq,  in hall_mh248_probe()
125 					"hall_mh248", mh248);  in hall_mh248_probe()
127 		dev_err(mh248->dev, "request irq(%d) failed, ret=%d\n",  in hall_mh248_probe()
128 			mh248->irq, ret);  in hall_mh248_probe()
132 	mh248->hall_input = devm_input_allocate_device(&pdev->dev);  in hall_mh248_probe()
133 	if (!mh248->hall_input) {  in hall_mh248_probe()
137 	mh248->hall_input->name = "hall wake key";  in hall_mh248_probe()
138 	input_set_capability(mh248->hall_input, EV_KEY, KEY_POWER);  in hall_mh248_probe()
139 	input_set_capability(mh248->hall_input, EV_KEY, KEY_WAKEUP);  in hall_mh248_probe()
141 	ret = input_register_device(mh248->hall_input);  in hall_mh248_probe()
147 	enable_irq_wake(mh248->irq);  in hall_mh248_probe()
148 	mh248->fb_notif.notifier_call = hall_fb_notifier_callback;  in hall_mh248_probe()
149 	fb_register_client(&mh248->fb_notif);  in hall_mh248_probe()
150 	dev_info(mh248->dev, "hall_mh248_probe success.\n");  in hall_mh248_probe()