1 /* 2 * Copyright (C) ST-Ericsson SA 2012 3 * 4 * Author: Ola Lilja (ola.o.lilja@stericsson.com) 5 * for ST-Ericsson. 6 * 7 * License terms: 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License version 2 as published 11 * by the Free Software Foundation. 12 */ 13 14 #include <asm/mach-types.h> 15 16 #include <linux/module.h> 17 #include <linux/io.h> 18 #include <linux/spi/spi.h> 19 #include <linux/of.h> 20 21 #include <sound/soc.h> 22 #include <sound/initval.h> 23 24 #include "ux500_pcm.h" 25 #include "ux500_msp_dai.h" 26 27 #include <mop500_ab8500.h> 28 29 /* Define the whole MOP500 soundcard, linking platform to the codec-drivers */ 30 struct snd_soc_dai_link mop500_dai_links[] = { 31 { 32 .name = "ab8500_0", 33 .stream_name = "ab8500_0", 34 .cpu_dai_name = "ux500-msp-i2s.1", 35 .codec_dai_name = "ab8500-codec-dai.0", 36 .platform_name = "ux500-pcm.0", 37 .codec_name = "ab8500-codec.0", 38 .init = mop500_ab8500_machine_init, 39 .ops = mop500_ab8500_ops, 40 }, 41 { 42 .name = "ab8500_1", 43 .stream_name = "ab8500_1", 44 .cpu_dai_name = "ux500-msp-i2s.3", 45 .codec_dai_name = "ab8500-codec-dai.1", 46 .platform_name = "ux500-pcm.0", 47 .codec_name = "ab8500-codec.0", 48 .init = NULL, 49 .ops = mop500_ab8500_ops, 50 }, 51 }; 52 53 static struct snd_soc_card mop500_card = { 54 .name = "MOP500-card", 55 .probe = NULL, 56 .dai_link = mop500_dai_links, 57 .num_links = ARRAY_SIZE(mop500_dai_links), 58 }; 59 60 static int __devinit mop500_of_probe(struct platform_device *pdev, 61 struct device_node *np) 62 { 63 struct device_node *codec_np, *msp_np[2]; 64 int i; 65 66 msp_np[0] = of_parse_phandle(np, "stericsson,cpu-dai", 0); 67 msp_np[1] = of_parse_phandle(np, "stericsson,cpu-dai", 1); 68 codec_np = of_parse_phandle(np, "stericsson,audio-codec", 0); 69 70 if (!(msp_np[0] && msp_np[1] && codec_np)) { 71 dev_err(&pdev->dev, "Phandle missing or invalid\n"); 72 return -EINVAL; 73 } 74 75 for (i = 0; i < 2; i++) { 76 mop500_dai_links[i].cpu_of_node = msp_np[i]; 77 mop500_dai_links[i].cpu_dai_name = NULL; 78 mop500_dai_links[i].codec_of_node = codec_np; 79 mop500_dai_links[i].codec_name = NULL; 80 } 81 82 snd_soc_of_parse_card_name(&mop500_card, "stericsson,card-name"); 83 84 return 0; 85 } 86 static int __devinit mop500_probe(struct platform_device *pdev) 87 { 88 struct device_node *np = pdev->dev.of_node; 89 int ret; 90 91 dev_dbg(&pdev->dev, "%s: Enter.\n", __func__); 92 93 mop500_card.dev = &pdev->dev; 94 95 if (np) { 96 ret = mop500_of_probe(pdev, np); 97 if (ret) 98 return ret; 99 } 100 101 dev_dbg(&pdev->dev, "%s: Card %s: Set platform drvdata.\n", 102 __func__, mop500_card.name); 103 platform_set_drvdata(pdev, &mop500_card); 104 105 snd_soc_card_set_drvdata(&mop500_card, NULL); 106 107 dev_dbg(&pdev->dev, "%s: Card %s: num_links = %d\n", 108 __func__, mop500_card.name, mop500_card.num_links); 109 dev_dbg(&pdev->dev, "%s: Card %s: DAI-link 0: name = %s\n", 110 __func__, mop500_card.name, mop500_card.dai_link[0].name); 111 dev_dbg(&pdev->dev, "%s: Card %s: DAI-link 0: stream_name = %s\n", 112 __func__, mop500_card.name, 113 mop500_card.dai_link[0].stream_name); 114 115 ret = snd_soc_register_card(&mop500_card); 116 if (ret) 117 dev_err(&pdev->dev, 118 "Error: snd_soc_register_card failed (%d)!\n", ret); 119 120 return ret; 121 } 122 123 static int __devexit mop500_remove(struct platform_device *pdev) 124 { 125 struct snd_soc_card *mop500_card = platform_get_drvdata(pdev); 126 127 pr_debug("%s: Enter.\n", __func__); 128 129 snd_soc_unregister_card(mop500_card); 130 mop500_ab8500_remove(mop500_card); 131 132 return 0; 133 } 134 135 static const struct of_device_id snd_soc_mop500_match[] = { 136 { .compatible = "stericsson,snd-soc-mop500", }, 137 {}, 138 }; 139 140 static struct platform_driver snd_soc_mop500_driver = { 141 .driver = { 142 .owner = THIS_MODULE, 143 .name = "snd-soc-mop500", 144 .of_match_table = snd_soc_mop500_match, 145 }, 146 .probe = mop500_probe, 147 .remove = __devexit_p(mop500_remove), 148 }; 149 150 module_platform_driver(snd_soc_mop500_driver); 151