forked from Minki/linux
c973b8a7dc
Currently the cs4271 driver depends on SND_SOC_I2C_AND_SPI. So the driver cannot be built as built-in if CONFIG_I2C=m. Split SPI and I2C code into different modules to avoid this issue. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Brian Austin <brian.austin@cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
/*
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* CS4271 SPI audio driver
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*
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* Copyright (c) 2010 Alexander Sverdlin <subaparts@yandex.ru>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/module.h>
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#include <linux/spi/spi.h>
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#include <linux/regmap.h>
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#include <sound/soc.h>
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#include "cs4271.h"
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static int cs4271_spi_probe(struct spi_device *spi)
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{
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struct regmap_config config;
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config = cs4271_regmap_config;
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config.reg_bits = 16;
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config.val_bits = 8;
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config.read_flag_mask = 0x21;
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config.write_flag_mask = 0x20;
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return cs4271_probe(&spi->dev, devm_regmap_init_spi(spi, &config));
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}
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static int cs4271_spi_remove(struct spi_device *spi)
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{
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snd_soc_unregister_codec(&spi->dev);
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return 0;
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}
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static struct spi_driver cs4271_spi_driver = {
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.driver = {
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.name = "cs4271",
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.owner = THIS_MODULE,
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.of_match_table = of_match_ptr(cs4271_dt_ids),
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},
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.probe = cs4271_spi_probe,
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.remove = cs4271_spi_remove,
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};
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module_spi_driver(cs4271_spi_driver);
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MODULE_DESCRIPTION("ASoC CS4271 SPI Driver");
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MODULE_AUTHOR("Alexander Sverdlin <subaparts@yandex.ru>");
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MODULE_LICENSE("GPL");
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