40 					  int brightness);
42 					int brightness);
94 static int compute_duty_cycle(struct pwm_bl_data *pb, int brightness)  in compute_duty_cycle()  argument
103 		duty_cycle = pb->levels[brightness];  in compute_duty_cycle()
105 		duty_cycle = brightness;  in compute_duty_cycle()
116 	int brightness = backlight_get_brightness(bl);  in pwm_backlight_update_status()  local
120 		brightness = pb->notify(pb->dev, brightness);  in pwm_backlight_update_status()
122 	if (brightness > 0) {  in pwm_backlight_update_status()
124 		state.duty_cycle = compute_duty_cycle(pb, brightness);  in pwm_backlight_update_status()
132 		pb->notify_after(pb->dev, brightness);  in pwm_backlight_update_status()
194  * Create a default correction table for PWM values to create linear brightness
261 	 * Determine the number of brightness levels, if this property is not  in pwm_backlight_parse_dt()
262 	 * set a default table of brightness levels will be used.  in pwm_backlight_parse_dt()
264 	prop = of_find_property(node, "brightness-levels", &length);  in pwm_backlight_parse_dt()
270 	/* read brightness levels from DT property */  in pwm_backlight_parse_dt()
279 		ret = of_property_read_u32_array(node, "brightness-levels",  in pwm_backlight_parse_dt()
285 		ret = of_property_read_u32(node, "default-brightness-level",  in pwm_backlight_parse_dt()
294 		 * interpolation between each of the values of brightness levels  in pwm_backlight_parse_dt()
302 		 * brightness-levels table, otherwise we can't interpolate  in pwm_backlight_parse_dt()
312 			 * Recalculate the number of brightness levels, now  in pwm_backlight_parse_dt()
324 			dev_dbg(dev, "new number of brightness levels: %d\n",  in pwm_backlight_parse_dt()
328 			 * Create a new table of brightness levels with all the  in pwm_backlight_parse_dt()
356 			 * brightness levels table and replace for the  in pwm_backlight_parse_dt()
364 			 * of brightness levels.  in pwm_backlight_parse_dt()
563 		 * For the DT case, only when brightness levels is defined  in pwm_backlight_probe()
577 		 * If no brightness levels are provided and max_brightness is  in pwm_backlight_probe()
578 		 * not set, use the default brightness table. For the DT case,  in pwm_backlight_probe()
579 		 * max_brightness is set to 0 when brightness levels is not  in pwm_backlight_probe()
591 				"failed to setup default brightness table\n");  in pwm_backlight_probe()
630 			 "invalid default brightness level: %u, using %u\n",  in pwm_backlight_probe()
635 	/* set brightness 0, when boot quiescent */  in pwm_backlight_probe()
637 		bl->props.brightness = 0;  in pwm_backlight_probe()
639 		bl->props.brightness = data->dft_brightness;  in pwm_backlight_probe()