C++ (Cpp) corgi_lcd_set_power Examples

Example #1

File: corgi_lcd.c Project: LittleForker/linux-2.6

static int __devexit corgi_lcd_remove(struct spi_device *spi)
{
	struct corgi_lcd *lcd = dev_get_drvdata(&spi->dev);

	lcd->bl_dev->props.power = FB_BLANK_UNBLANK;
	lcd->bl_dev->props.brightness = 0;
	backlight_update_status(lcd->bl_dev);
	backlight_device_unregister(lcd->bl_dev);

	if (gpio_is_valid(lcd->gpio_backlight_on))
		gpio_free(lcd->gpio_backlight_on);

	if (gpio_is_valid(lcd->gpio_backlight_cont))
		gpio_free(lcd->gpio_backlight_cont);

	corgi_lcd_set_power(lcd->lcd_dev, FB_BLANK_POWERDOWN);
	lcd_device_unregister(lcd->lcd_dev);
	kfree(lcd);

	return 0;
}

Example #2

File: corgi_lcd.c Project: A2109devs/lenovo_a2109a_kernel

static int __devinit corgi_lcd_probe(struct spi_device *spi)
{
	struct backlight_properties props;
	struct corgi_lcd_platform_data *pdata = spi->dev.platform_data;
	struct corgi_lcd *lcd;
	int ret = 0;

	if (pdata == NULL) {
		dev_err(&spi->dev, "platform data not available\n");
		return -EINVAL;
	}

	lcd = kzalloc(sizeof(struct corgi_lcd), GFP_KERNEL);
	if (!lcd) {
		dev_err(&spi->dev, "failed to allocate memory\n");
		return -ENOMEM;
	}

	lcd->spi_dev = spi;

	lcd->lcd_dev = lcd_device_register("corgi_lcd", &spi->dev,
					lcd, &corgi_lcd_ops);
	if (IS_ERR(lcd->lcd_dev)) {
		ret = PTR_ERR(lcd->lcd_dev);
		goto err_free_lcd;
	}
	lcd->power = FB_BLANK_POWERDOWN;
	lcd->mode = (pdata) ? pdata->init_mode : CORGI_LCD_MODE_VGA;

	memset(&props, 0, sizeof(struct backlight_properties));
	props.max_brightness = pdata->max_intensity;
	lcd->bl_dev = backlight_device_register("corgi_bl", &spi->dev, lcd,
						&corgi_bl_ops, &props);
	if (IS_ERR(lcd->bl_dev)) {
		ret = PTR_ERR(lcd->bl_dev);
		goto err_unregister_lcd;
	}
	lcd->bl_dev->props.brightness = pdata->default_intensity;
	lcd->bl_dev->props.power = FB_BLANK_UNBLANK;

	ret = setup_gpio_backlight(lcd, pdata);
	if (ret)
		goto err_unregister_bl;

	lcd->kick_battery = pdata->kick_battery;

	dev_set_drvdata(&spi->dev, lcd);
	corgi_lcd_set_power(lcd->lcd_dev, FB_BLANK_UNBLANK);
	backlight_update_status(lcd->bl_dev);

	lcd->limit_mask = pdata->limit_mask;
	the_corgi_lcd = lcd;
	return 0;

err_unregister_bl:
	backlight_device_unregister(lcd->bl_dev);
err_unregister_lcd:
	lcd_device_unregister(lcd->lcd_dev);
err_free_lcd:
	kfree(lcd);
	return ret;
}