865 	struct sc27xx_adc_data *sc27xx_data;  in sc27xx_adc_probe()  local
876 	indio_dev = devm_iio_device_alloc(dev, sizeof(*sc27xx_data));  in sc27xx_adc_probe()
880 	sc27xx_data = iio_priv(indio_dev);  in sc27xx_adc_probe()
882 	sc27xx_data->regmap = dev_get_regmap(dev->parent, NULL);  in sc27xx_adc_probe()
883 	if (!sc27xx_data->regmap) {  in sc27xx_adc_probe()
888 	ret = of_property_read_u32(np, "reg", &sc27xx_data->base);  in sc27xx_adc_probe()
894 	sc27xx_data->irq = platform_get_irq(pdev, 0);  in sc27xx_adc_probe()
895 	if (sc27xx_data->irq < 0)  in sc27xx_adc_probe()
896 		return sc27xx_data->irq;  in sc27xx_adc_probe()
904 	sc27xx_data->hwlock = devm_hwspin_lock_request_specific(dev, ret);  in sc27xx_adc_probe()
905 	if (!sc27xx_data->hwlock) {  in sc27xx_adc_probe()
910 	sc27xx_data->dev = dev;  in sc27xx_adc_probe()
912 		sc27xx_data->volref = devm_regulator_get(dev, "vref");  in sc27xx_adc_probe()
913 		if (IS_ERR(sc27xx_data->volref)) {  in sc27xx_adc_probe()
914 			ret = PTR_ERR(sc27xx_data->volref);  in sc27xx_adc_probe()
919 	sc27xx_data->var_data = pdata;  in sc27xx_adc_probe()
920 	sc27xx_data->var_data->init_scale(sc27xx_data);  in sc27xx_adc_probe()
922 	ret = sc27xx_adc_enable(sc27xx_data);  in sc27xx_adc_probe()
928 	ret = devm_add_action_or_reset(dev, sc27xx_adc_disable, sc27xx_data);  in sc27xx_adc_probe()
940 	mutex_init(&sc27xx_data->lock);  in sc27xx_adc_probe()