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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Copyright (C) ST-Ericsson SA 20124 *5 * Author: Ola Lilja (ola.o.lilja@stericsson.com)6 * for ST-Ericsson.7 */8 9#include <asm/mach-types.h>10 11#include <linux/module.h>12#include <linux/io.h>13#include <linux/spi/spi.h>14#include <linux/of.h>15 16#include <sound/soc.h>17#include <sound/initval.h>18 19#include "ux500_pcm.h"20#include "ux500_msp_dai.h"21 22#include "mop500_ab8500.h"23 24/* Define the whole MOP500 soundcard, linking platform to the codec-drivers */25SND_SOC_DAILINK_DEFS(link1,26 DAILINK_COMP_ARRAY(COMP_CPU("ux500-msp-i2s.1")),27 DAILINK_COMP_ARRAY(COMP_CODEC("ab8500-codec.0", "ab8500-codec-dai.0")),28 DAILINK_COMP_ARRAY(COMP_PLATFORM("ux500-msp-i2s.1")));29 30SND_SOC_DAILINK_DEFS(link2,31 DAILINK_COMP_ARRAY(COMP_CPU("ux500-msp-i2s.3")),32 DAILINK_COMP_ARRAY(COMP_CODEC("ab8500-codec.0", "ab8500-codec-dai.1")),33 DAILINK_COMP_ARRAY(COMP_PLATFORM("ux500-msp-i2s.3")));34 35static struct snd_soc_dai_link mop500_dai_links[] = {36 {37 .name = "ab8500_0",38 .stream_name = "ab8500_0",39 .init = mop500_ab8500_machine_init,40 .ops = mop500_ab8500_ops,41 SND_SOC_DAILINK_REG(link1),42 },43 {44 .name = "ab8500_1",45 .stream_name = "ab8500_1",46 .init = NULL,47 .ops = mop500_ab8500_ops,48 SND_SOC_DAILINK_REG(link2),49 },50};51 52static struct snd_soc_card mop500_card = {53 .name = "MOP500-card",54 .owner = THIS_MODULE,55 .probe = NULL,56 .dai_link = mop500_dai_links,57 .num_links = ARRAY_SIZE(mop500_dai_links),58};59 60static void mop500_of_node_put(void)61{62 int i;63 64 for (i = 0; i < 2; i++)65 of_node_put(mop500_dai_links[i].cpus->of_node);66 67 /* Both links use the same codec, which is refcounted only once */68 of_node_put(mop500_dai_links[0].codecs->of_node);69}70 71static int mop500_of_probe(struct platform_device *pdev,72 struct device_node *np)73{74 struct device_node *codec_np, *msp_np[2];75 int i;76 77 msp_np[0] = of_parse_phandle(np, "stericsson,cpu-dai", 0);78 msp_np[1] = of_parse_phandle(np, "stericsson,cpu-dai", 1);79 codec_np = of_parse_phandle(np, "stericsson,audio-codec", 0);80 81 if (!(msp_np[0] && msp_np[1] && codec_np)) {82 dev_err(&pdev->dev, "Phandle missing or invalid\n");83 for (i = 0; i < 2; i++)84 of_node_put(msp_np[i]);85 of_node_put(codec_np);86 return -EINVAL;87 }88 89 for (i = 0; i < 2; i++) {90 mop500_dai_links[i].cpus->of_node = msp_np[i];91 mop500_dai_links[i].cpus->dai_name = NULL;92 mop500_dai_links[i].platforms->of_node = msp_np[i];93 mop500_dai_links[i].platforms->name = NULL;94 mop500_dai_links[i].codecs->of_node = codec_np;95 mop500_dai_links[i].codecs->name = NULL;96 }97 98 snd_soc_of_parse_card_name(&mop500_card, "stericsson,card-name");99 100 return 0;101}102 103static int mop500_probe(struct platform_device *pdev)104{105 struct device_node *np = pdev->dev.of_node;106 int ret;107 108 dev_dbg(&pdev->dev, "%s: Enter.\n", __func__);109 110 mop500_card.dev = &pdev->dev;111 112 ret = mop500_of_probe(pdev, np);113 if (ret)114 return ret;115 116 dev_dbg(&pdev->dev, "%s: Card %s: Set platform drvdata.\n",117 __func__, mop500_card.name);118 119 snd_soc_card_set_drvdata(&mop500_card, NULL);120 121 dev_dbg(&pdev->dev, "%s: Card %s: num_links = %d\n",122 __func__, mop500_card.name, mop500_card.num_links);123 dev_dbg(&pdev->dev, "%s: Card %s: DAI-link 0: name = %s\n",124 __func__, mop500_card.name, mop500_card.dai_link[0].name);125 dev_dbg(&pdev->dev, "%s: Card %s: DAI-link 0: stream_name = %s\n",126 __func__, mop500_card.name,127 mop500_card.dai_link[0].stream_name);128 129 ret = snd_soc_register_card(&mop500_card);130 if (ret)131 dev_err(&pdev->dev,132 "Error: snd_soc_register_card failed (%d)!\n", ret);133 134 return ret;135}136 137static void mop500_remove(struct platform_device *pdev)138{139 struct snd_soc_card *card = platform_get_drvdata(pdev);140 141 pr_debug("%s: Enter.\n", __func__);142 143 snd_soc_unregister_card(card);144 mop500_ab8500_remove(card);145 mop500_of_node_put();146}147 148static const struct of_device_id snd_soc_mop500_match[] = {149 { .compatible = "stericsson,snd-soc-mop500", },150 {},151};152MODULE_DEVICE_TABLE(of, snd_soc_mop500_match);153 154static struct platform_driver snd_soc_mop500_driver = {155 .driver = {156 .name = "snd-soc-mop500",157 .of_match_table = snd_soc_mop500_match,158 },159 .probe = mop500_probe,160 .remove = mop500_remove,161};162 163module_platform_driver(snd_soc_mop500_driver);164 165MODULE_LICENSE("GPL v2");166MODULE_DESCRIPTION("ASoC MOP500 board driver");167MODULE_AUTHOR("Ola Lilja");168