170 lines
4.1 KiB
C
170 lines
4.1 KiB
C
/*
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* Copyright (C) ST-Ericsson SA 2012
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*
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* Author: Ola Lilja (ola.o.lilja@stericsson.com)
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* for ST-Ericsson.
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*
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* License terms:
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*/
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#include <asm/mach-types.h>
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#include <linux/module.h>
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#include <linux/io.h>
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#include <linux/spi/spi.h>
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#include <linux/of.h>
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#include <sound/soc.h>
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#include <sound/initval.h>
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#include "ux500_pcm.h"
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#include "ux500_msp_dai.h"
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#include "mop500_ab8500.h"
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/* Define the whole MOP500 soundcard, linking platform to the codec-drivers */
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static struct snd_soc_dai_link mop500_dai_links[] = {
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{
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.name = "ab8500_0",
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.stream_name = "ab8500_0",
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.cpu_dai_name = "ux500-msp-i2s.1",
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.codec_dai_name = "ab8500-codec-dai.0",
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.platform_name = "ux500-msp-i2s.1",
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.codec_name = "ab8500-codec.0",
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.init = mop500_ab8500_machine_init,
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.ops = mop500_ab8500_ops,
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},
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{
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.name = "ab8500_1",
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.stream_name = "ab8500_1",
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.cpu_dai_name = "ux500-msp-i2s.3",
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.codec_dai_name = "ab8500-codec-dai.1",
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.platform_name = "ux500-msp-i2s.3",
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.codec_name = "ab8500-codec.0",
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.init = NULL,
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.ops = mop500_ab8500_ops,
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},
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};
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static struct snd_soc_card mop500_card = {
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.name = "MOP500-card",
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.owner = THIS_MODULE,
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.probe = NULL,
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.dai_link = mop500_dai_links,
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.num_links = ARRAY_SIZE(mop500_dai_links),
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};
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static void mop500_of_node_put(void)
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{
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int i;
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for (i = 0; i < 2; i++) {
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of_node_put(mop500_dai_links[i].cpu_of_node);
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of_node_put(mop500_dai_links[i].codec_of_node);
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}
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}
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static int mop500_of_probe(struct platform_device *pdev,
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struct device_node *np)
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{
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struct device_node *codec_np, *msp_np[2];
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int i;
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msp_np[0] = of_parse_phandle(np, "stericsson,cpu-dai", 0);
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msp_np[1] = of_parse_phandle(np, "stericsson,cpu-dai", 1);
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codec_np = of_parse_phandle(np, "stericsson,audio-codec", 0);
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if (!(msp_np[0] && msp_np[1] && codec_np)) {
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dev_err(&pdev->dev, "Phandle missing or invalid\n");
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mop500_of_node_put();
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return -EINVAL;
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}
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for (i = 0; i < 2; i++) {
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mop500_dai_links[i].cpu_of_node = msp_np[i];
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mop500_dai_links[i].cpu_dai_name = NULL;
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mop500_dai_links[i].platform_of_node = msp_np[i];
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mop500_dai_links[i].platform_name = NULL;
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mop500_dai_links[i].codec_of_node = codec_np;
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mop500_dai_links[i].codec_name = NULL;
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}
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snd_soc_of_parse_card_name(&mop500_card, "stericsson,card-name");
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return 0;
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}
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static int mop500_probe(struct platform_device *pdev)
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{
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struct device_node *np = pdev->dev.of_node;
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int ret;
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dev_dbg(&pdev->dev, "%s: Enter.\n", __func__);
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mop500_card.dev = &pdev->dev;
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if (np) {
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ret = mop500_of_probe(pdev, np);
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if (ret)
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return ret;
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}
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dev_dbg(&pdev->dev, "%s: Card %s: Set platform drvdata.\n",
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__func__, mop500_card.name);
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snd_soc_card_set_drvdata(&mop500_card, NULL);
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dev_dbg(&pdev->dev, "%s: Card %s: num_links = %d\n",
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__func__, mop500_card.name, mop500_card.num_links);
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dev_dbg(&pdev->dev, "%s: Card %s: DAI-link 0: name = %s\n",
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__func__, mop500_card.name, mop500_card.dai_link[0].name);
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dev_dbg(&pdev->dev, "%s: Card %s: DAI-link 0: stream_name = %s\n",
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__func__, mop500_card.name,
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mop500_card.dai_link[0].stream_name);
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ret = snd_soc_register_card(&mop500_card);
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if (ret)
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dev_err(&pdev->dev,
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"Error: snd_soc_register_card failed (%d)!\n", ret);
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return ret;
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}
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static int mop500_remove(struct platform_device *pdev)
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{
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struct snd_soc_card *mop500_card = platform_get_drvdata(pdev);
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pr_debug("%s: Enter.\n", __func__);
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snd_soc_unregister_card(mop500_card);
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mop500_ab8500_remove(mop500_card);
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mop500_of_node_put();
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return 0;
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}
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static const struct of_device_id snd_soc_mop500_match[] = {
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{ .compatible = "stericsson,snd-soc-mop500", },
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{},
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};
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MODULE_DEVICE_TABLE(of, snd_soc_mop500_match);
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static struct platform_driver snd_soc_mop500_driver = {
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.driver = {
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.name = "snd-soc-mop500",
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.of_match_table = snd_soc_mop500_match,
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},
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.probe = mop500_probe,
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.remove = mop500_remove,
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};
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module_platform_driver(snd_soc_mop500_driver);
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MODULE_LICENSE("GPL v2");
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MODULE_DESCRIPTION("ASoC MOP500 board driver");
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MODULE_AUTHOR("Ola Lilja");
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