140 static int tsl2563_set_power(struct tsl2563_chip *chip, int on)  in tsl2563_set_power()  argument
142 	struct i2c_client *client = chip->client;  in tsl2563_set_power()
154 static int tsl2563_get_power(struct tsl2563_chip *chip)  in tsl2563_get_power()  argument
156 	struct i2c_client *client = chip->client;  in tsl2563_get_power()
166 static int tsl2563_configure(struct tsl2563_chip *chip)  in tsl2563_configure()  argument
170 	ret = i2c_smbus_write_byte_data(chip->client,  in tsl2563_configure()
172 			chip->gainlevel->gaintime);  in tsl2563_configure()
175 	ret = i2c_smbus_write_byte_data(chip->client,  in tsl2563_configure()
177 			chip->high_thres & 0xFF);  in tsl2563_configure()
180 	ret = i2c_smbus_write_byte_data(chip->client,  in tsl2563_configure()
182 			(chip->high_thres >> 8) & 0xFF);  in tsl2563_configure()
185 	ret = i2c_smbus_write_byte_data(chip->client,  in tsl2563_configure()
187 			chip->low_thres & 0xFF);  in tsl2563_configure()
190 	ret = i2c_smbus_write_byte_data(chip->client,  in tsl2563_configure()
192 			(chip->low_thres >> 8) & 0xFF);  in tsl2563_configure()
203 	struct tsl2563_chip *chip =  in tsl2563_poweroff_work()  local
205 	tsl2563_set_power(chip, 0);  in tsl2563_poweroff_work()
208 static int tsl2563_detect(struct tsl2563_chip *chip)  in tsl2563_detect()  argument
212 	ret = tsl2563_set_power(chip, 1);  in tsl2563_detect()
216 	ret = tsl2563_get_power(chip);  in tsl2563_detect()
223 static int tsl2563_read_id(struct tsl2563_chip *chip, u8 *id)  in tsl2563_read_id()  argument
225 	struct i2c_client *client = chip->client;  in tsl2563_read_id()
271 static void tsl2563_wait_adc(struct tsl2563_chip *chip)  in tsl2563_wait_adc()  argument
275 	switch (chip->gainlevel->gaintime & TSL2563_TIMING_MASK) {  in tsl2563_wait_adc()
292 static int tsl2563_adjust_gainlevel(struct tsl2563_chip *chip, u16 adc)  in tsl2563_adjust_gainlevel()  argument
294 	struct i2c_client *client = chip->client;  in tsl2563_adjust_gainlevel()
296 	if (adc > chip->gainlevel->max || adc < chip->gainlevel->min) {  in tsl2563_adjust_gainlevel()
298 		(adc > chip->gainlevel->max) ?  in tsl2563_adjust_gainlevel()
299 			chip->gainlevel++ : chip->gainlevel--;  in tsl2563_adjust_gainlevel()
303 					  chip->gainlevel->gaintime);  in tsl2563_adjust_gainlevel()
305 		tsl2563_wait_adc(chip);  in tsl2563_adjust_gainlevel()
306 		tsl2563_wait_adc(chip);  in tsl2563_adjust_gainlevel()
313 static int tsl2563_get_adc(struct tsl2563_chip *chip)  in tsl2563_get_adc()  argument
315 	struct i2c_client *client = chip->client;  in tsl2563_get_adc()
320 	if (chip->suspended)  in tsl2563_get_adc()
323 	if (!chip->int_enabled) {  in tsl2563_get_adc()
324 		cancel_delayed_work(&chip->poweroff_work);  in tsl2563_get_adc()
326 		if (!tsl2563_get_power(chip)) {  in tsl2563_get_adc()
327 			ret = tsl2563_set_power(chip, 1);  in tsl2563_get_adc()
330 			ret = tsl2563_configure(chip);  in tsl2563_get_adc()
333 			tsl2563_wait_adc(chip);  in tsl2563_get_adc()
350 		retry = tsl2563_adjust_gainlevel(chip, adc0);  in tsl2563_get_adc()
353 	chip->data0 = normalize_adc(adc0, chip->gainlevel->gaintime);  in tsl2563_get_adc()
354 	chip->data1 = normalize_adc(adc1, chip->gainlevel->gaintime);  in tsl2563_get_adc()
356 	if (!chip->int_enabled)  in tsl2563_get_adc()
357 		schedule_delayed_work(&chip->poweroff_work, 5 * HZ);  in tsl2563_get_adc()
461 	struct tsl2563_chip *chip = iio_priv(indio_dev);  in tsl2563_write_raw()  local
466 		chip->calib0 = calib_from_sysfs(val);  in tsl2563_write_raw()
468 		chip->calib1 = calib_from_sysfs(val);  in tsl2563_write_raw()
483 	struct tsl2563_chip *chip = iio_priv(indio_dev);  in tsl2563_read_raw()  local
485 	mutex_lock(&chip->lock);  in tsl2563_read_raw()
491 			ret = tsl2563_get_adc(chip);  in tsl2563_read_raw()
494 			calib0 = calib_adc(chip->data0, chip->calib0) *  in tsl2563_read_raw()
495 				chip->cover_comp_gain;  in tsl2563_read_raw()
496 			calib1 = calib_adc(chip->data1, chip->calib1) *  in tsl2563_read_raw()
497 				chip->cover_comp_gain;  in tsl2563_read_raw()
502 			ret = tsl2563_get_adc(chip);  in tsl2563_read_raw()
506 				*val = chip->data0;  in tsl2563_read_raw()
508 				*val = chip->data1;  in tsl2563_read_raw()
518 			*val = calib_to_sysfs(chip->calib0);  in tsl2563_read_raw()
520 			*val = calib_to_sysfs(chip->calib1);  in tsl2563_read_raw()
529 	mutex_unlock(&chip->lock);  in tsl2563_read_raw()
575 	struct tsl2563_chip *chip = iio_priv(indio_dev);  in tsl2563_read_thresh()  local
579 		*val = chip->high_thres;  in tsl2563_read_thresh()
582 		*val = chip->low_thres;  in tsl2563_read_thresh()
596 	struct tsl2563_chip *chip = iio_priv(indio_dev);  in tsl2563_write_thresh()  local
604 	mutex_lock(&chip->lock);  in tsl2563_write_thresh()
605 	ret = i2c_smbus_write_byte_data(chip->client, TSL2563_CMD | address,  in tsl2563_write_thresh()
609 	ret = i2c_smbus_write_byte_data(chip->client,  in tsl2563_write_thresh()
613 		chip->high_thres = val;  in tsl2563_write_thresh()
615 		chip->low_thres = val;  in tsl2563_write_thresh()
618 	mutex_unlock(&chip->lock);  in tsl2563_write_thresh()
626 	struct tsl2563_chip *chip = iio_priv(dev_info);  in tsl2563_event_handler()  local
636 	i2c_smbus_write_byte(chip->client, TSL2563_CMD | TSL2563_CLEARINT);  in tsl2563_event_handler()
644 	struct tsl2563_chip *chip = iio_priv(indio_dev);  in tsl2563_write_interrupt_config()  local
647 	mutex_lock(&chip->lock);  in tsl2563_write_interrupt_config()
648 	if (state && !(chip->intr & 0x30)) {  in tsl2563_write_interrupt_config()
649 		chip->intr &= ~0x30;  in tsl2563_write_interrupt_config()
650 		chip->intr |= 0x10;  in tsl2563_write_interrupt_config()
652 		cancel_delayed_work(&chip->poweroff_work);  in tsl2563_write_interrupt_config()
653 		if (!tsl2563_get_power(chip)) {  in tsl2563_write_interrupt_config()
654 			ret = tsl2563_set_power(chip, 1);  in tsl2563_write_interrupt_config()
657 			ret = tsl2563_configure(chip);  in tsl2563_write_interrupt_config()
661 		ret = i2c_smbus_write_byte_data(chip->client,  in tsl2563_write_interrupt_config()
663 						chip->intr);  in tsl2563_write_interrupt_config()
664 		chip->int_enabled = true;  in tsl2563_write_interrupt_config()
667 	if (!state && (chip->intr & 0x30)) {  in tsl2563_write_interrupt_config()
668 		chip->intr &= ~0x30;  in tsl2563_write_interrupt_config()
669 		ret = i2c_smbus_write_byte_data(chip->client,  in tsl2563_write_interrupt_config()
671 						chip->intr);  in tsl2563_write_interrupt_config()
672 		chip->int_enabled = false;  in tsl2563_write_interrupt_config()
674 		schedule_delayed_work(&chip->poweroff_work, 5 * HZ);  in tsl2563_write_interrupt_config()
677 	mutex_unlock(&chip->lock);  in tsl2563_write_interrupt_config()
686 	struct tsl2563_chip *chip = iio_priv(indio_dev);  in tsl2563_read_interrupt_config()  local
689 	mutex_lock(&chip->lock);  in tsl2563_read_interrupt_config()
690 	ret = i2c_smbus_read_byte_data(chip->client,  in tsl2563_read_interrupt_config()
692 	mutex_unlock(&chip->lock);  in tsl2563_read_interrupt_config()
719 	struct tsl2563_chip *chip;  in tsl2563_probe()  local
725 	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip));  in tsl2563_probe()
729 	chip = iio_priv(indio_dev);  in tsl2563_probe()
731 	i2c_set_clientdata(client, chip);  in tsl2563_probe()
732 	chip->client = client;  in tsl2563_probe()
734 	err = tsl2563_detect(chip);  in tsl2563_probe()
740 	err = tsl2563_read_id(chip, &id);  in tsl2563_probe()
746 	mutex_init(&chip->lock);  in tsl2563_probe()
749 	chip->low_thres = 0x0;  in tsl2563_probe()
750 	chip->high_thres = 0xffff;  in tsl2563_probe()
751 	chip->gainlevel = tsl2563_gainlevel_table;  in tsl2563_probe()
752 	chip->intr = TSL2563_INT_PERSIST(4);  in tsl2563_probe()
753 	chip->calib0 = calib_from_sysfs(CALIB_BASE_SYSFS);  in tsl2563_probe()
754 	chip->calib1 = calib_from_sysfs(CALIB_BASE_SYSFS);  in tsl2563_probe()
757 		chip->cover_comp_gain = pdata->cover_comp_gain;  in tsl2563_probe()
760 				     &chip->cover_comp_gain);  in tsl2563_probe()
762 		chip->cover_comp_gain = 1;  in tsl2563_probe()
789 	err = tsl2563_configure(chip);  in tsl2563_probe()
795 	INIT_DELAYED_WORK(&chip->poweroff_work, tsl2563_poweroff_work);  in tsl2563_probe()
798 	schedule_delayed_work(&chip->poweroff_work, 5 * HZ);  in tsl2563_probe()
809 	cancel_delayed_work(&chip->poweroff_work);  in tsl2563_probe()
816 	struct tsl2563_chip *chip = i2c_get_clientdata(client);  in tsl2563_remove()  local
817 	struct iio_dev *indio_dev = iio_priv_to_dev(chip);  in tsl2563_remove()
820 	if (!chip->int_enabled)  in tsl2563_remove()
821 		cancel_delayed_work(&chip->poweroff_work);  in tsl2563_remove()
823 	chip->intr &= ~0x30;  in tsl2563_remove()
824 	i2c_smbus_write_byte_data(chip->client, TSL2563_CMD | TSL2563_REG_INT,  in tsl2563_remove()
825 				  chip->intr);  in tsl2563_remove()
827 	tsl2563_set_power(chip, 0);  in tsl2563_remove()
835 	struct tsl2563_chip *chip = i2c_get_clientdata(to_i2c_client(dev));  in tsl2563_suspend()  local
838 	mutex_lock(&chip->lock);  in tsl2563_suspend()
840 	ret = tsl2563_set_power(chip, 0);  in tsl2563_suspend()
844 	chip->suspended = true;  in tsl2563_suspend()
847 	mutex_unlock(&chip->lock);  in tsl2563_suspend()
853 	struct tsl2563_chip *chip = i2c_get_clientdata(to_i2c_client(dev));  in tsl2563_resume()  local
856 	mutex_lock(&chip->lock);  in tsl2563_resume()
858 	ret = tsl2563_set_power(chip, 1);  in tsl2563_resume()
862 	ret = tsl2563_configure(chip);  in tsl2563_resume()
866 	chip->suspended = false;  in tsl2563_resume()
869 	mutex_unlock(&chip->lock);  in tsl2563_resume()