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2e9688c81c
- Switch to REGCACHE_FLAT, the whole overhead of RBTREE is not worth it with non sparse register set in the address range 1..7. - Move register width to central location Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Link: https://lore.kernel.org/r/20230410223902.2321834-3-alexander.sverdlin@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
37 lines
877 B
C
37 lines
877 B
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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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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#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.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 struct spi_driver cs4271_spi_driver = {
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.driver = {
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.name = "cs4271",
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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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};
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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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