Lines Matching +full:sd +full:- +full:modulator

1 // SPDX-License-Identifier: GPL-2.0
3  * Generic sigma delta modulator driver
5  * Copyright (C) 2017, STMicroelectronics - All Rights Reserved
39 	if (priv->vref)  in iio_sd_mod_enable()
40 		return regulator_enable(priv->vref);  in iio_sd_mod_enable()
49 	if (priv->vref)  in iio_sd_mod_disable()
50 		regulator_disable(priv->vref);  in iio_sd_mod_disable()
60 		*val = priv->vref_mv;  in iio_sd_mod_read()
68 	return -EOPNOTSUPP;  in iio_sd_mod_read()
78 	.name = "sd-modulator",
84 	struct device *dev = &pdev->dev;  in iio_sd_mod_register()
89 		return -ENOMEM;  in iio_sd_mod_register()
91 	iio->name = dev_name(dev);  in iio_sd_mod_register()
92 	iio->info = &iio_sd_mod_iio_info;  in iio_sd_mod_register()
93 	iio->modes = INDIO_BUFFER_HARDWARE;  in iio_sd_mod_register()
95 	iio->num_channels = 1;  in iio_sd_mod_register()
96 	iio->channels = &iio_sd_mod_ch;  in iio_sd_mod_register()
100 	return devm_iio_device_register(&pdev->dev, iio);  in iio_sd_mod_register()
105 	struct device *dev = &pdev->dev;  in iio_sd_mod_probe()
110 	/* If sd modulator is not defined as an IIO backend device, fallback to legacy */  in iio_sd_mod_probe()
111 	if (!device_property_present(dev, "#io-backend-cells"))  in iio_sd_mod_probe()
116 		return -ENOMEM;  in iio_sd_mod_probe()
124 		if (PTR_ERR(vref) != -ENODEV)  in iio_sd_mod_probe()
135 		priv->vref = vref;  in iio_sd_mod_probe()
136 		priv->vref_mv = ret / 1000;  in iio_sd_mod_probe()
139 	return devm_iio_backend_register(&pdev->dev, &sd_backend_info, priv);  in iio_sd_mod_probe()
143 	{ .compatible = "sd-modulator" },
159 MODULE_DESCRIPTION("Basic sigma delta modulator");