diff options
Diffstat (limited to 'kernel/sound/soc/codecs/cs4271-spi.c')
| -rw-r--r-- | kernel/sound/soc/codecs/cs4271-spi.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/kernel/sound/soc/codecs/cs4271-spi.c b/kernel/sound/soc/codecs/cs4271-spi.c new file mode 100644 index 000000000..acd49d86e --- /dev/null +++ b/kernel/sound/soc/codecs/cs4271-spi.c @@ -0,0 +1,55 @@ +/* + * CS4271 SPI audio driver + * + * Copyright (c) 2010 Alexander Sverdlin <subaparts@yandex.ru> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/module.h> +#include <linux/spi/spi.h> +#include <linux/regmap.h> +#include <sound/soc.h> +#include "cs4271.h" + +static int cs4271_spi_probe(struct spi_device *spi) +{ + struct regmap_config config; + + config = cs4271_regmap_config; + config.reg_bits = 16; + config.val_bits = 8; + config.read_flag_mask = 0x21; + config.write_flag_mask = 0x20; + + return cs4271_probe(&spi->dev, devm_regmap_init_spi(spi, &config)); +} + +static int cs4271_spi_remove(struct spi_device *spi) +{ + snd_soc_unregister_codec(&spi->dev); + return 0; +} + +static struct spi_driver cs4271_spi_driver = { + .driver = { + .name = "cs4271", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(cs4271_dt_ids), + }, + .probe = cs4271_spi_probe, + .remove = cs4271_spi_remove, +}; +module_spi_driver(cs4271_spi_driver); + +MODULE_DESCRIPTION("ASoC CS4271 SPI Driver"); +MODULE_AUTHOR("Alexander Sverdlin <subaparts@yandex.ru>"); +MODULE_LICENSE("GPL"); |