57 /* Calculated values 1000 * (CH1/CH0)^1.4 for CH1/CH0 from 0 to 0.52 */
65 static unsigned long apds9300_calculate_lux(u16 ch0, u16 ch1)  in apds9300_calculate_lux()  argument
73 	tmp = DIV_ROUND_UP(ch1 * 100, ch0);  in apds9300_calculate_lux()
78 		lux = 2290 * ch0 - 2910 * ch1;  in apds9300_calculate_lux()
80 		lux = 1570 * ch0 - 1800 * ch1;  in apds9300_calculate_lux()
82 		lux = 338 * ch0 - 260 * ch1;  in apds9300_calculate_lux()
239 	int ch0, ch1, ret = -EINVAL;  in apds9300_read_raw()  local
250 		ch1 = apds9300_get_adc_val(data, 1);  in apds9300_read_raw()
251 		if (ch1 < 0) {  in apds9300_read_raw()
252 			ret = ch1;  in apds9300_read_raw()
255 		*val = apds9300_calculate_lux(ch0, ch1);  in apds9300_read_raw()