1a9262c4fSJon Smirl /* 2a9262c4fSJon Smirl * Phytec pcm030 driver for the PSC of the Freescale MPC52xx 3a9262c4fSJon Smirl * configured as AC97 interface 4a9262c4fSJon Smirl * 5a9262c4fSJon Smirl * Copyright 2008 Jon Smirl, Digispeaker 6a9262c4fSJon Smirl * Author: Jon Smirl <jonsmirl@gmail.com> 7a9262c4fSJon Smirl * 8a9262c4fSJon Smirl * This file is licensed under the terms of the GNU General Public License 9a9262c4fSJon Smirl * version 2. This program is licensed "as is" without any warranty of any 10a9262c4fSJon Smirl * kind, whether express or implied. 11a9262c4fSJon Smirl */ 12a9262c4fSJon Smirl 13a9262c4fSJon Smirl #include <linux/init.h> 14a9262c4fSJon Smirl #include <linux/module.h> 15a9262c4fSJon Smirl #include <linux/device.h> 16a9262c4fSJon Smirl #include <linux/of_device.h> 17a9262c4fSJon Smirl #include <linux/of_platform.h> 18a9262c4fSJon Smirl 19a9262c4fSJon Smirl #include <sound/soc.h> 20a9262c4fSJon Smirl 21a9262c4fSJon Smirl #include "mpc5200_dma.h" 22a9262c4fSJon Smirl 23afc5e652STakashi Iwai #define DRV_NAME "pcm030-audio-fabric" 24afc5e652STakashi Iwai 25c912fa91SEric Millbrandt struct pcm030_audio_data { 26c912fa91SEric Millbrandt struct snd_soc_card *card; 27c912fa91SEric Millbrandt struct platform_device *codec_device; 28c912fa91SEric Millbrandt }; 29c912fa91SEric Millbrandt 30a9262c4fSJon Smirl static struct snd_soc_dai_link pcm030_fabric_dai[] = { 31a9262c4fSJon Smirl { 32c73adc74SEric Millbrandt .name = "AC97.0", 33a9262c4fSJon Smirl .stream_name = "AC97 Analog", 34f0fba2adSLiam Girdwood .codec_dai_name = "wm9712-hifi", 35f0fba2adSLiam Girdwood .cpu_dai_name = "mpc5200-psc-ac97.0", 36f0fba2adSLiam Girdwood .codec_name = "wm9712-codec", 37a9262c4fSJon Smirl }, 38a9262c4fSJon Smirl { 39c73adc74SEric Millbrandt .name = "AC97.1", 40a9262c4fSJon Smirl .stream_name = "AC97 IEC958", 41f0fba2adSLiam Girdwood .codec_dai_name = "wm9712-aux", 42f0fba2adSLiam Girdwood .cpu_dai_name = "mpc5200-psc-ac97.1", 43e94be5f3SLiam Girdwood .codec_name = "wm9712-codec", 44a9262c4fSJon Smirl }, 45a9262c4fSJon Smirl }; 46a9262c4fSJon Smirl 4708401161SEric Millbrandt static struct snd_soc_card pcm030_card = { 484c3c5df0SAxel Lin .name = "pcm030", 494c3c5df0SAxel Lin .owner = THIS_MODULE, 504c3c5df0SAxel Lin .dai_link = pcm030_fabric_dai, 514c3c5df0SAxel Lin .num_links = ARRAY_SIZE(pcm030_fabric_dai), 524c3c5df0SAxel Lin }; 534c3c5df0SAxel Lin 5408401161SEric Millbrandt static int __init pcm030_fabric_probe(struct platform_device *op) 55a9262c4fSJon Smirl { 5608401161SEric Millbrandt struct device_node *np = op->dev.of_node; 5708401161SEric Millbrandt struct device_node *platform_np; 5808401161SEric Millbrandt struct snd_soc_card *card = &pcm030_card; 59c912fa91SEric Millbrandt struct pcm030_audio_data *pdata; 6008401161SEric Millbrandt int ret; 6108401161SEric Millbrandt int i; 62a9262c4fSJon Smirl 6371a157e8SGrant Likely if (!of_machine_is_compatible("phytec,pcm030")) 64a9262c4fSJon Smirl return -ENODEV; 65a9262c4fSJon Smirl 66c912fa91SEric Millbrandt pdata = devm_kzalloc(&op->dev, sizeof(struct pcm030_audio_data), 67c912fa91SEric Millbrandt GFP_KERNEL); 68c912fa91SEric Millbrandt if (!pdata) 69c912fa91SEric Millbrandt return -ENOMEM; 70c912fa91SEric Millbrandt 7108401161SEric Millbrandt card->dev = &op->dev; 72c912fa91SEric Millbrandt platform_set_drvdata(op, pdata); 73c912fa91SEric Millbrandt 74c912fa91SEric Millbrandt pdata->card = card; 7508401161SEric Millbrandt 7608401161SEric Millbrandt platform_np = of_parse_phandle(np, "asoc-platform", 0); 7708401161SEric Millbrandt if (!platform_np) { 7808401161SEric Millbrandt dev_err(&op->dev, "ac97 not registered\n"); 79a9262c4fSJon Smirl return -ENODEV; 80a9262c4fSJon Smirl } 81a9262c4fSJon Smirl 8208401161SEric Millbrandt for (i = 0; i < card->num_links; i++) 8308401161SEric Millbrandt card->dai_link[i].platform_of_node = platform_np; 84a9262c4fSJon Smirl 85c912fa91SEric Millbrandt ret = request_module("snd-soc-wm9712"); 86c912fa91SEric Millbrandt if (ret) 87c912fa91SEric Millbrandt dev_err(&op->dev, "request_module returned: %d\n", ret); 88c912fa91SEric Millbrandt 89c912fa91SEric Millbrandt pdata->codec_device = platform_device_alloc("wm9712-codec", -1); 90c912fa91SEric Millbrandt if (!pdata->codec_device) 91c912fa91SEric Millbrandt dev_err(&op->dev, "platform_device_alloc() failed\n"); 92c912fa91SEric Millbrandt 93c912fa91SEric Millbrandt ret = platform_device_add(pdata->codec_device); 94c912fa91SEric Millbrandt if (ret) 95c912fa91SEric Millbrandt dev_err(&op->dev, "platform_device_add() failed: %d\n", ret); 96c912fa91SEric Millbrandt 9708401161SEric Millbrandt ret = snd_soc_register_card(card); 9808401161SEric Millbrandt if (ret) 9908401161SEric Millbrandt dev_err(&op->dev, "snd_soc_register_card() failed: %d\n", ret); 10008401161SEric Millbrandt 10108401161SEric Millbrandt return ret; 102a9262c4fSJon Smirl } 103a9262c4fSJon Smirl 104a0a3d518SBill Pemberton static int pcm030_fabric_remove(struct platform_device *op) 10508401161SEric Millbrandt { 106c912fa91SEric Millbrandt struct pcm030_audio_data *pdata = platform_get_drvdata(op); 10708401161SEric Millbrandt int ret; 10808401161SEric Millbrandt 109c912fa91SEric Millbrandt ret = snd_soc_unregister_card(pdata->card); 110c912fa91SEric Millbrandt platform_device_unregister(pdata->codec_device); 11108401161SEric Millbrandt 11208401161SEric Millbrandt return ret; 11308401161SEric Millbrandt } 11408401161SEric Millbrandt 11508401161SEric Millbrandt static struct of_device_id pcm030_audio_match[] = { 11608401161SEric Millbrandt { .compatible = "phytec,pcm030-audio-fabric", }, 11708401161SEric Millbrandt {} 11808401161SEric Millbrandt }; 11908401161SEric Millbrandt MODULE_DEVICE_TABLE(of, pcm030_audio_match); 12008401161SEric Millbrandt 12108401161SEric Millbrandt static struct platform_driver pcm030_fabric_driver = { 12208401161SEric Millbrandt .probe = pcm030_fabric_probe, 123a0a3d518SBill Pemberton .remove = pcm030_fabric_remove, 12408401161SEric Millbrandt .driver = { 12508401161SEric Millbrandt .name = DRV_NAME, 12608401161SEric Millbrandt .owner = THIS_MODULE, 12708401161SEric Millbrandt .of_match_table = pcm030_audio_match, 12808401161SEric Millbrandt }, 12908401161SEric Millbrandt }; 13008401161SEric Millbrandt 13108401161SEric Millbrandt module_platform_driver(pcm030_fabric_driver); 132a9262c4fSJon Smirl 133a9262c4fSJon Smirl 134a9262c4fSJon Smirl MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>"); 135a9262c4fSJon Smirl MODULE_DESCRIPTION(DRV_NAME ": mpc5200 pcm030 fabric driver"); 136a9262c4fSJon Smirl MODULE_LICENSE("GPL"); 137a9262c4fSJon Smirl 138