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993a345071
This is an initial version of the PCM186x codec driver supporting both 2-channel and 4-channel device variants. Not all device features are supported yet such as master/slave mode PLL configuration for which the codec driver currently relies on the PCM186x built-in clock auto-detection feature or the connection of digital microphones. However here is what's here and what should work: - Support for SPI and I2C low-level interfaces - Regmap support and basic register definitions - Input Mixer and Mux selection - I2C, LJ, and TDM DAI format support Signed-off-by: Andreas Dannenberg <dannenberg@ti.com> Signed-off-by: Michael Stecklein <m-stecklein@ti.com> Signed-off-by: Andrew F. Davis <afd@ti.com> Signed-off-by: Mark Brown <broonie@kernel.org>
70 lines
1.8 KiB
C
70 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Texas Instruments PCM186x Universal Audio ADC - SPI
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*
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* Copyright (C) 2015-2017 Texas Instruments Incorporated - http://www.ti.com
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* Andreas Dannenberg <dannenberg@ti.com>
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* Andrew F. Davis <afd@ti.com>
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/spi/spi.h>
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#include "pcm186x.h"
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static const struct of_device_id pcm186x_of_match[] = {
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{ .compatible = "ti,pcm1862", .data = (void *)PCM1862 },
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{ .compatible = "ti,pcm1863", .data = (void *)PCM1863 },
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{ .compatible = "ti,pcm1864", .data = (void *)PCM1864 },
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{ .compatible = "ti,pcm1865", .data = (void *)PCM1865 },
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{ }
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};
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MODULE_DEVICE_TABLE(of, pcm186x_of_match);
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static int pcm186x_spi_probe(struct spi_device *spi)
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{
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const enum pcm186x_type type =
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(enum pcm186x_type)spi_get_device_id(spi)->driver_data;
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int irq = spi->irq;
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struct regmap *regmap;
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regmap = devm_regmap_init_spi(spi, &pcm186x_regmap);
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if (IS_ERR(regmap))
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return PTR_ERR(regmap);
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return pcm186x_probe(&spi->dev, type, irq, regmap);
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}
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static int pcm186x_spi_remove(struct spi_device *spi)
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{
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pcm186x_remove(&spi->dev);
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return 0;
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}
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static const struct spi_device_id pcm186x_spi_id[] = {
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{ "pcm1862", PCM1862 },
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{ "pcm1863", PCM1863 },
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{ "pcm1864", PCM1864 },
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{ "pcm1865", PCM1865 },
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{ }
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};
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MODULE_DEVICE_TABLE(spi, pcm186x_spi_id);
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static struct spi_driver pcm186x_spi_driver = {
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.probe = pcm186x_spi_probe,
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.remove = pcm186x_spi_remove,
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.id_table = pcm186x_spi_id,
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.driver = {
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.name = "pcm186x",
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.of_match_table = pcm186x_of_match,
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},
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};
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module_spi_driver(pcm186x_spi_driver);
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MODULE_AUTHOR("Andreas Dannenberg <dannenberg@ti.com>");
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MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
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MODULE_DESCRIPTION("PCM186x Universal Audio ADC SPI Interface Driver");
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MODULE_LICENSE("GPL v2");
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