/* * ADAU1977/ADAU1978/ADAU1979 driver * * Copyright 2014 Analog Devices Inc. * Author: Lars-Peter Clausen <lars@metafoo.de> * * Licensed under the GPL-2. */ #include <linux/mod_devicetable.h> #include <linux/module.h> #include <linux/regmap.h> #include <linux/spi/spi.h> #include <sound/soc.h> #include "adau1977.h" static void adau1977_spi_switch_mode(struct device *dev) { struct spi_device *spi = to_spi_device(dev); /* * To get the device into SPI mode CLATCH has to be pulled low three * times. Do this by issuing three dummy reads. */ spi_w8r8(spi, 0x00); spi_w8r8(spi, 0x00); spi_w8r8(spi, 0x00); } static int adau1977_spi_probe(struct spi_device *spi) { const struct spi_device_id *id = spi_get_device_id(spi); struct regmap_config config; if (!id) return -EINVAL; config = adau1977_regmap_config; config.val_bits = 8; config.reg_bits = 16; config.read_flag_mask = 0x1; return adau1977_probe(&spi->dev, devm_regmap_init_spi(spi, &config), id->driver_data, adau1977_spi_switch_mode); } static int adau1977_spi_remove(struct spi_device *spi) { snd_soc_unregister_codec(&spi->dev); return 0; } static const struct spi_device_id adau1977_spi_ids[] = { { "adau1977", ADAU1977 }, { "adau1978", ADAU1978 }, { "adau1979", ADAU1978 }, { } }; MODULE_DEVICE_TABLE(spi, adau1977_spi_ids); static struct spi_driver adau1977_spi_driver = { .driver = { .name = "adau1977", }, .probe = adau1977_spi_probe, .remove = adau1977_spi_remove, .id_table = adau1977_spi_ids, }; module_spi_driver(adau1977_spi_driver); MODULE_DESCRIPTION("ASoC ADAU1977/ADAU1978/ADAU1979 driver"); MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); MODULE_LICENSE("GPL"); ve' href='/cgit.cgi/linux/net-next.git/log/sound/soc/codecs/rt5660.h?h=nds-private-remove'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/sound/soc/codecs/rt5660.h?h=nds-private-remove&id=40c81b25b16cd871afe70630c131bd2544848d1f'>tree</a><a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/codecs/rt5660.h?h=nds-private-remove&id=40c81b25b16cd871afe70630c131bd2544848d1f'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/sound/soc/codecs/rt5660.h?h=nds-private-remove&id=40c81b25b16cd871afe70630c131bd2544848d1f'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/sound/soc/codecs/rt5660.h'> <input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='40c81b25b16cd871afe70630c131bd2544848d1f'/><select name='qt'> <option value='grep'>log msg</option> <option value='author'>author</option> <option value='committer'>committer</option> <option value='range'>range</option> </select> <input class='txt' type='search' size='10' name='q' value=''/> <input type='submit' value='search'/> </form> </td></tr></table> <div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove&id=40c81b25b16cd871afe70630c131bd2544848d1f'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound?h=nds-private-remove&id=40c81b25b16cd871afe70630c131bd2544848d1f'>sound</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound/soc?h=nds-private-remove&id=40c81b25b16cd871afe70630c131bd2544848d1f'>soc</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound/soc/codecs?h=nds-private-remove&id=40c81b25b16cd871afe70630c131bd2544848d1f'>codecs</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound/soc/codecs/rt5660.h?h=nds-private-remove&id=40c81b25b16cd871afe70630c131bd2544848d1f'>rt5660.h</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/sound/soc/codecs/rt5660.h?h=nds-private-remove&id=40c81b25b16cd871afe70630c131bd2544848d1f&showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr> >Files</th><th class='left'>Lines</th></tr> s='left'>Lines</th></tr>