cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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tlv320aic32x4-spi.c (2088B)

      1/* SPDX-License-Identifier: GPL-2.0
      2 *
      3 * Copyright 2011-2019 NW Digital Radio
      4 *
      5 * Author: Annaliese McDermond <nh6z@nh6z.net>
      6 *
      7 * Based on sound/soc/codecs/wm8974 and TI driver for kernel 2.6.27.
      8 *
      9 */
     10
     11#include <linux/spi/spi.h>
     12#include <linux/module.h>
     13#include <linux/of.h>
     14#include <linux/regmap.h>
     15#include <sound/soc.h>
     16
     17#include "tlv320aic32x4.h"
     18
     19static const struct of_device_id aic32x4_of_id[];
     20
     21static int aic32x4_spi_probe(struct spi_device *spi)
     22{
     23	struct regmap *regmap;
     24	struct regmap_config config;
     25
     26	config = aic32x4_regmap_config;
     27	config.reg_bits = 7;
     28	config.pad_bits = 1;
     29	config.val_bits = 8;
     30	config.read_flag_mask = 0x01;
     31
     32	regmap = devm_regmap_init_spi(spi, &config);
     33
     34	if (spi->dev.of_node) {
     35		const struct of_device_id *oid;
     36
     37		oid = of_match_node(aic32x4_of_id, spi->dev.of_node);
     38		dev_set_drvdata(&spi->dev, (void *)oid->data);
     39	} else {
     40		const struct spi_device_id *id_entry;
     41
     42		id_entry = spi_get_device_id(spi);
     43		dev_set_drvdata(&spi->dev, (void *)id_entry->driver_data);
     44	}
     45
     46	return aic32x4_probe(&spi->dev, regmap);
     47}
     48
     49static void aic32x4_spi_remove(struct spi_device *spi)
     50{
     51	aic32x4_remove(&spi->dev);
     52}
     53
     54static const struct spi_device_id aic32x4_spi_id[] = {
     55	{ "tlv320aic32x4", (kernel_ulong_t)AIC32X4_TYPE_AIC32X4 },
     56	{ "tlv320aic32x6", (kernel_ulong_t)AIC32X4_TYPE_AIC32X6 },
     57	{ /* sentinel */ }
     58};
     59MODULE_DEVICE_TABLE(spi, aic32x4_spi_id);
     60
     61static const struct of_device_id aic32x4_of_id[] = {
     62	{ .compatible = "ti,tlv320aic32x4", .data = (void *)AIC32X4_TYPE_AIC32X4 },
     63	{ .compatible = "ti,tlv320aic32x6", .data = (void *)AIC32X4_TYPE_AIC32X6 },
     64	{ /* senitel */ }
     65};
     66MODULE_DEVICE_TABLE(of, aic32x4_of_id);
     67
     68static struct spi_driver aic32x4_spi_driver = {
     69	.driver = {
     70		.name = "tlv320aic32x4",
     71		.owner = THIS_MODULE,
     72		.of_match_table = aic32x4_of_id,
     73	},
     74	.probe =    aic32x4_spi_probe,
     75	.remove =   aic32x4_spi_remove,
     76	.id_table = aic32x4_spi_id,
     77};
     78
     79module_spi_driver(aic32x4_spi_driver);
     80
     81MODULE_DESCRIPTION("ASoC TLV320AIC32x4 codec driver SPI");
     82MODULE_AUTHOR("Annaliese McDermond <nh6z@nh6z.net>");
     83MODULE_LICENSE("GPL");