1 // SPDX-License-Identifier: GPL-2.0 2 // 3 // Generic AC97 sound support for SH7760 4 // 5 // (c) 2007 Manuel Lauss 6 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 0xFE400034 16 17 static struct snd_soc_dai_link sh7760_ac97_dai = { 18 .name = "AC97", 19 .stream_name = "AC97 HiFi", 20 .cpu_dai_name = "hac-dai.0", /* HAC0 */ 21 .codec_dai_name = "ac97-hifi", 22 .platform_name = "sh7760-pcm-audio", 23 .codec_name = "ac97-codec", 24 .ops = NULL, 25 }; 26 27 static struct snd_soc_card sh7760_ac97_soc_machine = { 28 .name = "SH7760 AC97", 29 .owner = THIS_MODULE, 30 .dai_link = &sh7760_ac97_dai, 31 .num_links = 1, 32 }; 33 34 static struct platform_device *sh7760_ac97_snd_device; 35 36 static int __init sh7760_ac97_init(void) 37 { 38 int ret; 39 unsigned short ipsel; 40 41 /* enable both AC97 controllers in pinmux reg */ 42 ipsel = __raw_readw(IPSEL); 43 __raw_writew(ipsel | (3 << 10), IPSEL); 44 45 ret = -ENOMEM; 46 sh7760_ac97_snd_device = platform_device_alloc("soc-audio", -1); 47 if (!sh7760_ac97_snd_device) 48 goto out; 49 50 platform_set_drvdata(sh7760_ac97_snd_device, 51 &sh7760_ac97_soc_machine); 52 ret = platform_device_add(sh7760_ac97_snd_device); 53 54 if (ret) 55 platform_device_put(sh7760_ac97_snd_device); 56 57 out: 58 return ret; 59 } 60 61 static void __exit sh7760_ac97_exit(void) 62 { 63 platform_device_unregister(sh7760_ac97_snd_device); 64 } 65 66 module_init(sh7760_ac97_init); 67 module_exit(sh7760_ac97_exit); 68 69 MODULE_LICENSE("GPL v2"); 70 MODULE_DESCRIPTION("Generic SH7760 AC97 sound machine"); 71 MODULE_AUTHOR("Manuel Lauss <mano@roarinelk.homelinux.net>"); 72