video/backlight/apple_bl.c

31 struct hw_data {
40 static const struct hw_data *hw_data;
81 static const struct hw_data intel_chipset_data = {
126 static const struct hw_data nvidia_chipset_data = {
151 		hw_data = &intel_chipset_data;
153 		hw_data = &nvidia_chipset_data;
157 	if (!hw_data) {
164 	intensity = hw_data->backlight_ops.get_brightness(NULL);
167 		hw_data->set_brightness(1);
168 		if (!hw_data->backlight_ops.get_brightness(NULL))
171 		hw_data->set_brightness(0);
174 	if (!request_region(hw_data->iostart, hw_data->iolen,
182 				  NULL, NULL, &hw_data->backlight_ops, &props);
185 		release_region(hw_data->iostart, hw_data->iolen);
190 		hw_data->backlight_ops.get_brightness(apple_backlight_device);
200 	release_region(hw_data->iostart, hw_data->iolen);
201 	hw_data = NULL;