1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (C) ST-Ericsson SA 2012 4 * 5 * Author: Ola Lilja (ola.o.lilja@stericsson.com) 6 * for ST-Ericsson. 7 * 8 * License terms: 9 */ 10 11 #include <asm/mach-types.h> 12 13 #include <linux/module.h> 14 #include <linux/io.h> 15 #include <linux/spi/spi.h> 16 #include <linux/of.h> 17 18 #include <sound/soc.h> 19 #include <sound/initval.h> 20 21 #include "ux500_pcm.h" 22 #include "ux500_msp_dai.h" 23 24 #include "mop500_ab8500.h" 25 26 /* Define the whole MOP500 soundcard, linking platform to the codec-drivers */ 27 SND_SOC_DAILINK_DEFS(link1, 28 DAILINK_COMP_ARRAY(COMP_CPU("ux500-msp-i2s.1")), 29 DAILINK_COMP_ARRAY(COMP_CODEC("ab8500-codec.0", "ab8500-codec-dai.0")), 30 DAILINK_COMP_ARRAY(COMP_PLATFORM("ux500-msp-i2s.1"))); 31 32 SND_SOC_DAILINK_DEFS(link2, 33 DAILINK_COMP_ARRAY(COMP_CPU("ux500-msp-i2s.3")), 34 DAILINK_COMP_ARRAY(COMP_CODEC("ab8500-codec.0", "ab8500-codec-dai.1")), 35 DAILINK_COMP_ARRAY(COMP_PLATFORM("ux500-msp-i2s.3"))); 36 37 static struct snd_soc_dai_link mop500_dai_links[] = { 38 { 39 .name = "ab8500_0", 40 .stream_name = "ab8500_0", 41 .init = mop500_ab8500_machine_init, 42 .ops = mop500_ab8500_ops, 43 SND_SOC_DAILINK_REG(link1), 44 }, 45 { 46 .name = "ab8500_1", 47 .stream_name = "ab8500_1", 48 .init = NULL, 49 .ops = mop500_ab8500_ops, 50 SND_SOC_DAILINK_REG(link2), 51 }, 52 }; 53 54 static struct snd_soc_card mop500_card = { 55 .name = "MOP500-card", 56 .owner = THIS_MODULE, 57 .probe = NULL, 58 .dai_link = mop500_dai_links, 59 .num_links = ARRAY_SIZE(mop500_dai_links), 60 }; 61 62 static void mop500_of_node_put(void) 63 { 64 int i; 65 66 for (i = 0; i < 2; i++) { 67 of_node_put(mop500_dai_links[i].cpus->of_node); 68 of_node_put(mop500_dai_links[i].codecs->of_node); 69 } 70 } 71 72 static int mop500_of_probe(struct platform_device *pdev, 73 struct device_node *np) 74 { 75 struct device_node *codec_np, *msp_np[2]; 76 int i; 77 78 msp_np[0] = of_parse_phandle(np, "stericsson,cpu-dai", 0); 79 msp_np[1] = of_parse_phandle(np, "stericsson,cpu-dai", 1); 80 codec_np = of_parse_phandle(np, "stericsson,audio-codec", 0); 81 82 if (!(msp_np[0] && msp_np[1] && codec_np)) { 83 dev_err(&pdev->dev, "Phandle missing or invalid\n"); 84 mop500_of_node_put(); 85 return -EINVAL; 86 } 87 88 for (i = 0; i < 2; i++) { 89 mop500_dai_links[i].cpus->of_node = msp_np[i]; 90 mop500_dai_links[i].cpus->dai_name = NULL; 91 mop500_dai_links[i].platforms->of_node = msp_np[i]; 92 mop500_dai_links[i].platforms->name = NULL; 93 mop500_dai_links[i].codecs->of_node = codec_np; 94 mop500_dai_links[i].codecs->name = NULL; 95 } 96 97 snd_soc_of_parse_card_name(&mop500_card, "stericsson,card-name"); 98 99 return 0; 100 } 101 102 static int mop500_probe(struct platform_device *pdev) 103 { 104 struct device_node *np = pdev->dev.of_node; 105 int ret; 106 107 dev_dbg(&pdev->dev, "%s: Enter.\n", __func__); 108 109 mop500_card.dev = &pdev->dev; 110 111 if (np) { 112 ret = mop500_of_probe(pdev, np); 113 if (ret) 114 return ret; 115 } 116 117 dev_dbg(&pdev->dev, "%s: Card %s: Set platform drvdata.\n", 118 __func__, mop500_card.name); 119 120 snd_soc_card_set_drvdata(&mop500_card, NULL); 121 122 dev_dbg(&pdev->dev, "%s: Card %s: num_links = %d\n", 123 __func__, mop500_card.name, mop500_card.num_links); 124 dev_dbg(&pdev->dev, "%s: Card %s: DAI-link 0: name = %s\n", 125 __func__, mop500_card.name, mop500_card.dai_link[0].name); 126 dev_dbg(&pdev->dev, "%s: Card %s: DAI-link 0: stream_name = %s\n", 127 __func__, mop500_card.name, 128 mop500_card.dai_link[0].stream_name); 129 130 ret = snd_soc_register_card(&mop500_card); 131 if (ret) 132 dev_err(&pdev->dev, 133 "Error: snd_soc_register_card failed (%d)!\n", ret); 134 135 return ret; 136 } 137 138 static int mop500_remove(struct platform_device *pdev) 139 { 140 struct snd_soc_card *mop500_card = platform_get_drvdata(pdev); 141 142 pr_debug("%s: Enter.\n", __func__); 143 144 snd_soc_unregister_card(mop500_card); 145 mop500_ab8500_remove(mop500_card); 146 mop500_of_node_put(); 147 148 return 0; 149 } 150 151 static const struct of_device_id snd_soc_mop500_match[] = { 152 { .compatible = "stericsson,snd-soc-mop500", }, 153 {}, 154 }; 155 MODULE_DEVICE_TABLE(of, snd_soc_mop500_match); 156 157 static struct platform_driver snd_soc_mop500_driver = { 158 .driver = { 159 .name = "snd-soc-mop500", 160 .of_match_table = snd_soc_mop500_match, 161 }, 162 .probe = mop500_probe, 163 .remove = mop500_remove, 164 }; 165 166 module_platform_driver(snd_soc_mop500_driver); 167 168 MODULE_LICENSE("GPL v2"); 169 MODULE_DESCRIPTION("ASoC MOP500 board driver"); 170 MODULE_AUTHOR("Ola Lilja"); 171