29 	struct picolcd_data *data = bl_get_data(bdev);  in picolcd_get_brightness()  local
30 	return data->lcd_brightness;  in picolcd_get_brightness()
35 	struct picolcd_data *data = bl_get_data(bdev);  in picolcd_set_brightness()  local
36 	struct hid_report *report = picolcd_out_report(REPORT_BRIGHTNESS, data->hdev);  in picolcd_set_brightness()
42 	data->lcd_brightness = bdev->props.brightness & 0x0ff;  in picolcd_set_brightness()
43 	data->lcd_power      = bdev->props.power;  in picolcd_set_brightness()
44 	spin_lock_irqsave(&data->lock, flags);  in picolcd_set_brightness()
45 	hid_set_field(report->field[0], 0, data->lcd_power == FB_BLANK_UNBLANK ? data->lcd_brightness : 0);  in picolcd_set_brightness()
46 	if (!(data->status & PICOLCD_FAILED))  in picolcd_set_brightness()
47 		hid_hw_request(data->hdev, report, HID_REQ_SET_REPORT);  in picolcd_set_brightness()
48 	spin_unlock_irqrestore(&data->lock, flags);  in picolcd_set_brightness()
63 int picolcd_init_backlight(struct picolcd_data *data, struct hid_report *report)  in picolcd_init_backlight()  argument
65 	struct device *dev = &data->hdev->dev;  in picolcd_init_backlight()
79 	bdev = backlight_device_register(dev_name(dev), dev, data,  in picolcd_init_backlight()
86 	data->lcd_brightness       = 0xff;  in picolcd_init_backlight()
87 	data->backlight            = bdev;  in picolcd_init_backlight()
92 void picolcd_exit_backlight(struct picolcd_data *data)  in picolcd_exit_backlight()  argument
94 	struct backlight_device *bdev = data->backlight;  in picolcd_exit_backlight()
96 	data->backlight = NULL;  in picolcd_exit_backlight()
101 int picolcd_resume_backlight(struct picolcd_data *data)  in picolcd_resume_backlight()  argument
103 	if (!data->backlight)  in picolcd_resume_backlight()
105 	return picolcd_set_brightness(data->backlight);  in picolcd_resume_backlight()
109 void picolcd_suspend_backlight(struct picolcd_data *data)  in picolcd_suspend_backlight()  argument
111 	int bl_power = data->lcd_power;  in picolcd_suspend_backlight()
112 	if (!data->backlight)  in picolcd_suspend_backlight()
115 	data->backlight->props.power = FB_BLANK_POWERDOWN;  in picolcd_suspend_backlight()
116 	picolcd_set_brightness(data->backlight);  in picolcd_suspend_backlight()
117 	data->lcd_power = data->backlight->props.power = bl_power;  in picolcd_suspend_backlight()