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1// SPDX-License-Identifier: GPL-2.02//3// Generic AC97 sound support for SH77604//5// (c) 2007 Manuel Lauss6 7#include <linux/module.h>8#include <linux/moduleparam.h>9#include <linux/platform_device.h>10#include <sound/core.h>11#include <sound/pcm.h>12#include <sound/soc.h>13#include <asm/io.h>14 15#define IPSEL 0xFE40003416 17SND_SOC_DAILINK_DEFS(ac97,18 DAILINK_COMP_ARRAY(COMP_CPU("hac-dai.0")), /* HAC0 */19 DAILINK_COMP_ARRAY(COMP_CODEC("ac97-codec", "ac97-hifi")),20 DAILINK_COMP_ARRAY(COMP_PLATFORM("sh7760-pcm-audio")));21 22static struct snd_soc_dai_link sh7760_ac97_dai = {23 .name = "AC97",24 .stream_name = "AC97 HiFi",25 SND_SOC_DAILINK_REG(ac97),26};27 28static struct snd_soc_card sh7760_ac97_soc_machine = {29 .name = "SH7760 AC97",30 .owner = THIS_MODULE,31 .dai_link = &sh7760_ac97_dai,32 .num_links = 1,33};34 35static struct platform_device *sh7760_ac97_snd_device;36 37static int __init sh7760_ac97_init(void)38{39 int ret;40 unsigned short ipsel;41 42 /* enable both AC97 controllers in pinmux reg */43 ipsel = __raw_readw(IPSEL);44 __raw_writew(ipsel | (3 << 10), IPSEL);45 46 ret = -ENOMEM;47 sh7760_ac97_snd_device = platform_device_alloc("soc-audio", -1);48 if (!sh7760_ac97_snd_device)49 goto out;50 51 platform_set_drvdata(sh7760_ac97_snd_device,52 &sh7760_ac97_soc_machine);53 ret = platform_device_add(sh7760_ac97_snd_device);54 55 if (ret)56 platform_device_put(sh7760_ac97_snd_device);57 58out:59 return ret;60}61 62static void __exit sh7760_ac97_exit(void)63{64 platform_device_unregister(sh7760_ac97_snd_device);65}66 67module_init(sh7760_ac97_init);68module_exit(sh7760_ac97_exit);69 70MODULE_LICENSE("GPL v2");71MODULE_DESCRIPTION("Generic SH7760 AC97 sound machine");72MODULE_AUTHOR("Manuel Lauss <mano@roarinelk.homelinux.net>");73