cs35l41_hda_spi.c (1551B)
1// SPDX-License-Identifier: GPL-2.0 2// 3// cs35l41.c -- CS35l41 HDA SPI driver 4// 5// Copyright 2021 Cirrus Logic, Inc. 6// 7// Author: Lucas Tanure <tanureal@opensource.cirrus.com> 8 9#include <linux/acpi.h> 10#include <linux/module.h> 11#include <linux/spi/spi.h> 12 13#include "cs35l41_hda.h" 14 15static int cs35l41_hda_spi_probe(struct spi_device *spi) 16{ 17 const char *device_name; 18 19 /* Compare against the device name so it works for SPI, normal ACPI 20 * and for ACPI by spi-multi-instantiate matching cases 21 */ 22 if (strstr(dev_name(&spi->dev), "CSC3551")) 23 device_name = "CSC3551"; 24 else 25 return -ENODEV; 26 27 return cs35l41_hda_probe(&spi->dev, device_name, spi->chip_select, spi->irq, 28 devm_regmap_init_spi(spi, &cs35l41_regmap_spi)); 29} 30 31static void cs35l41_hda_spi_remove(struct spi_device *spi) 32{ 33 cs35l41_hda_remove(&spi->dev); 34} 35 36static const struct spi_device_id cs35l41_hda_spi_id[] = { 37 { "cs35l41-hda", 0 }, 38 {} 39}; 40 41#ifdef CONFIG_ACPI 42static const struct acpi_device_id cs35l41_acpi_hda_match[] = { 43 { "CSC3551", 0 }, 44 {}, 45}; 46MODULE_DEVICE_TABLE(acpi, cs35l41_acpi_hda_match); 47#endif 48 49static struct spi_driver cs35l41_spi_driver = { 50 .driver = { 51 .name = "cs35l41-hda", 52 .acpi_match_table = ACPI_PTR(cs35l41_acpi_hda_match), 53 }, 54 .id_table = cs35l41_hda_spi_id, 55 .probe = cs35l41_hda_spi_probe, 56 .remove = cs35l41_hda_spi_remove, 57}; 58module_spi_driver(cs35l41_spi_driver); 59 60MODULE_DESCRIPTION("HDA CS35L41 driver"); 61MODULE_IMPORT_NS(SND_HDA_SCODEC_CS35L41); 62MODULE_AUTHOR("Lucas Tanure <tanureal@opensource.cirrus.com>"); 63MODULE_LICENSE("GPL");