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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em-x270.c (2172B)

      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 * SoC audio driver for EM-X270, eXeda and CM-X300
      4 *
      5 * Copyright 2007, 2009 CompuLab, Ltd.
      6 *
      7 * Author: Mike Rapoport <mike@compulab.co.il>
      8 *
      9 * Copied from tosa.c:
     10 * Copyright 2005 Wolfson Microelectronics PLC.
     11 * Copyright 2005 Openedhand Ltd.
     12 *
     13 * Authors: Liam Girdwood <lrg@slimlogic.co.uk>
     14 *          Richard Purdie <richard@openedhand.com>
     15 */
     16
     17#include <linux/module.h>
     18#include <linux/moduleparam.h>
     19#include <linux/device.h>
     20
     21#include <sound/core.h>
     22#include <sound/pcm.h>
     23#include <sound/soc.h>
     24
     25#include <asm/mach-types.h>
     26#include <linux/platform_data/asoc-pxa.h>
     27
     28SND_SOC_DAILINK_DEFS(ac97,
     29	DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97")),
     30	DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-hifi")),
     31	DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
     32
     33SND_SOC_DAILINK_DEFS(ac97_aux,
     34	DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97-aux")),
     35	DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-aux")),
     36	DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
     37
     38static struct snd_soc_dai_link em_x270_dai[] = {
     39	{
     40		.name = "AC97",
     41		.stream_name = "AC97 HiFi",
     42		SND_SOC_DAILINK_REG(ac97),
     43	},
     44	{
     45		.name = "AC97 Aux",
     46		.stream_name = "AC97 Aux",
     47		SND_SOC_DAILINK_REG(ac97_aux),
     48	},
     49};
     50
     51static struct snd_soc_card em_x270 = {
     52	.name = "EM-X270",
     53	.owner = THIS_MODULE,
     54	.dai_link = em_x270_dai,
     55	.num_links = ARRAY_SIZE(em_x270_dai),
     56};
     57
     58static struct platform_device *em_x270_snd_device;
     59
     60static int __init em_x270_init(void)
     61{
     62	int ret;
     63
     64	if (!(machine_is_em_x270() || machine_is_exeda()
     65	      || machine_is_cm_x300()))
     66		return -ENODEV;
     67
     68	em_x270_snd_device = platform_device_alloc("soc-audio", -1);
     69	if (!em_x270_snd_device)
     70		return -ENOMEM;
     71
     72	platform_set_drvdata(em_x270_snd_device, &em_x270);
     73	ret = platform_device_add(em_x270_snd_device);
     74
     75	if (ret)
     76		platform_device_put(em_x270_snd_device);
     77
     78	return ret;
     79}
     80
     81static void __exit em_x270_exit(void)
     82{
     83	platform_device_unregister(em_x270_snd_device);
     84}
     85
     86module_init(em_x270_init);
     87module_exit(em_x270_exit);
     88
     89/* Module information */
     90MODULE_AUTHOR("Mike Rapoport");
     91MODULE_DESCRIPTION("ALSA SoC EM-X270, eXeda and CM-X300");
     92MODULE_LICENSE("GPL");