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143 lines
3.4 KiB
143 lines
3.4 KiB
// SPDX-License-Identifier: GPL-2.0 |
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// |
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// Phytec pcm030 driver for the PSC of the Freescale MPC52xx |
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// configured as AC97 interface |
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// |
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// Copyright 2008 Jon Smirl, Digispeaker |
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// Author: Jon Smirl <[email protected]> |
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#include <linux/init.h> |
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#include <linux/module.h> |
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#include <linux/device.h> |
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#include <linux/of_device.h> |
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#include <linux/of_platform.h> |
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#include <sound/soc.h> |
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#include "mpc5200_dma.h" |
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#define DRV_NAME "pcm030-audio-fabric" |
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struct pcm030_audio_data { |
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struct snd_soc_card *card; |
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struct platform_device *codec_device; |
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}; |
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SND_SOC_DAILINK_DEFS(analog, |
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DAILINK_COMP_ARRAY(COMP_CPU("mpc5200-psc-ac97.0")), |
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DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-hifi")), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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SND_SOC_DAILINK_DEFS(iec958, |
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DAILINK_COMP_ARRAY(COMP_CPU("mpc5200-psc-ac97.1")), |
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DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-aux")), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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static struct snd_soc_dai_link pcm030_fabric_dai[] = { |
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{ |
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.name = "AC97.0", |
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.stream_name = "AC97 Analog", |
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SND_SOC_DAILINK_REG(analog), |
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}, |
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{ |
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.name = "AC97.1", |
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.stream_name = "AC97 IEC958", |
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SND_SOC_DAILINK_REG(iec958), |
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}, |
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}; |
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static struct snd_soc_card pcm030_card = { |
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.name = "pcm030", |
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.owner = THIS_MODULE, |
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.dai_link = pcm030_fabric_dai, |
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.num_links = ARRAY_SIZE(pcm030_fabric_dai), |
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}; |
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static int pcm030_fabric_probe(struct platform_device *op) |
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{ |
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struct device_node *np = op->dev.of_node; |
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struct device_node *platform_np; |
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struct snd_soc_card *card = &pcm030_card; |
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struct pcm030_audio_data *pdata; |
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struct snd_soc_dai_link *dai_link; |
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int ret; |
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int i; |
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if (!of_machine_is_compatible("phytec,pcm030")) |
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return -ENODEV; |
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pdata = devm_kzalloc(&op->dev, sizeof(struct pcm030_audio_data), |
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GFP_KERNEL); |
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if (!pdata) |
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return -ENOMEM; |
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card->dev = &op->dev; |
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pdata->card = card; |
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platform_np = of_parse_phandle(np, "asoc-platform", 0); |
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if (!platform_np) { |
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dev_err(&op->dev, "ac97 not registered\n"); |
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return -ENODEV; |
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} |
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for_each_card_prelinks(card, i, dai_link) |
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dai_link->platforms->of_node = platform_np; |
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ret = request_module("snd-soc-wm9712"); |
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if (ret) |
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dev_err(&op->dev, "request_module returned: %d\n", ret); |
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pdata->codec_device = platform_device_alloc("wm9712-codec", -1); |
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if (!pdata->codec_device) |
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dev_err(&op->dev, "platform_device_alloc() failed\n"); |
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ret = platform_device_add(pdata->codec_device); |
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if (ret) { |
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dev_err(&op->dev, "platform_device_add() failed: %d\n", ret); |
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platform_device_put(pdata->codec_device); |
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} |
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ret = snd_soc_register_card(card); |
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if (ret) { |
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dev_err(&op->dev, "snd_soc_register_card() failed: %d\n", ret); |
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platform_device_unregister(pdata->codec_device); |
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} |
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platform_set_drvdata(op, pdata); |
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return ret; |
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} |
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static int pcm030_fabric_remove(struct platform_device *op) |
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{ |
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struct pcm030_audio_data *pdata = platform_get_drvdata(op); |
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snd_soc_unregister_card(pdata->card); |
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platform_device_unregister(pdata->codec_device); |
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return 0; |
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} |
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static const struct of_device_id pcm030_audio_match[] = { |
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{ .compatible = "phytec,pcm030-audio-fabric", }, |
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{} |
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}; |
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MODULE_DEVICE_TABLE(of, pcm030_audio_match); |
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static struct platform_driver pcm030_fabric_driver = { |
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.probe = pcm030_fabric_probe, |
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.remove = pcm030_fabric_remove, |
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.driver = { |
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.name = DRV_NAME, |
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.of_match_table = pcm030_audio_match, |
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}, |
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}; |
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module_platform_driver(pcm030_fabric_driver); |
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MODULE_AUTHOR("Jon Smirl <[email protected]>"); |
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MODULE_DESCRIPTION(DRV_NAME ": mpc5200 pcm030 fabric driver"); |
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MODULE_LICENSE("GPL"); |
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