174d04c3eSThomas Petazzoni /* 274d04c3eSThomas Petazzoni * Copyright (C) 2014 Marvell 374d04c3eSThomas Petazzoni * 474d04c3eSThomas Petazzoni * Thomas Petazzoni <thomas.petazzoni@free-electrons.com> 574d04c3eSThomas Petazzoni * 674d04c3eSThomas Petazzoni * This program is free software; you can redistribute it and/or 774d04c3eSThomas Petazzoni * modify it under the terms of the GNU General Public License as 874d04c3eSThomas Petazzoni * published by the Free Software Foundation; either version 2 of the 974d04c3eSThomas Petazzoni * License, or (at your option) any later version. 1074d04c3eSThomas Petazzoni */ 1174d04c3eSThomas Petazzoni 1274d04c3eSThomas Petazzoni #include <linux/module.h> 1374d04c3eSThomas Petazzoni #include <linux/moduleparam.h> 1474d04c3eSThomas Petazzoni #include <linux/interrupt.h> 1574d04c3eSThomas Petazzoni #include <linux/platform_device.h> 1674d04c3eSThomas Petazzoni #include <linux/slab.h> 1774d04c3eSThomas Petazzoni #include <sound/soc.h> 1874d04c3eSThomas Petazzoni #include <linux/of.h> 1974d04c3eSThomas Petazzoni #include <linux/platform_data/asoc-kirkwood.h> 2074d04c3eSThomas Petazzoni #include "../codecs/cs42l51.h" 2174d04c3eSThomas Petazzoni 2274d04c3eSThomas Petazzoni static int a370db_hw_params(struct snd_pcm_substream *substream, 2374d04c3eSThomas Petazzoni struct snd_pcm_hw_params *params) 2474d04c3eSThomas Petazzoni { 2574d04c3eSThomas Petazzoni struct snd_soc_pcm_runtime *rtd = substream->private_data; 2674d04c3eSThomas Petazzoni struct snd_soc_dai *codec_dai = rtd->codec_dai; 2774d04c3eSThomas Petazzoni unsigned int freq; 2874d04c3eSThomas Petazzoni 2974d04c3eSThomas Petazzoni switch (params_rate(params)) { 3074d04c3eSThomas Petazzoni default: 3174d04c3eSThomas Petazzoni case 44100: 3274d04c3eSThomas Petazzoni freq = 11289600; 3374d04c3eSThomas Petazzoni break; 3474d04c3eSThomas Petazzoni case 48000: 3574d04c3eSThomas Petazzoni freq = 12288000; 3674d04c3eSThomas Petazzoni break; 3774d04c3eSThomas Petazzoni case 96000: 3874d04c3eSThomas Petazzoni freq = 24576000; 3974d04c3eSThomas Petazzoni break; 4074d04c3eSThomas Petazzoni } 4174d04c3eSThomas Petazzoni 4274d04c3eSThomas Petazzoni return snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_IN); 4374d04c3eSThomas Petazzoni } 4474d04c3eSThomas Petazzoni 459b6fdef6SJulia Lawall static const struct snd_soc_ops a370db_ops = { 4674d04c3eSThomas Petazzoni .hw_params = a370db_hw_params, 4774d04c3eSThomas Petazzoni }; 4874d04c3eSThomas Petazzoni 4974d04c3eSThomas Petazzoni static const struct snd_soc_dapm_widget a370db_dapm_widgets[] = { 5074d04c3eSThomas Petazzoni SND_SOC_DAPM_HP("Out Jack", NULL), 5174d04c3eSThomas Petazzoni SND_SOC_DAPM_LINE("In Jack", NULL), 5274d04c3eSThomas Petazzoni }; 5374d04c3eSThomas Petazzoni 5474d04c3eSThomas Petazzoni static const struct snd_soc_dapm_route a370db_route[] = { 5574d04c3eSThomas Petazzoni { "Out Jack", NULL, "HPL" }, 5674d04c3eSThomas Petazzoni { "Out Jack", NULL, "HPR" }, 5774d04c3eSThomas Petazzoni { "AIN1L", NULL, "In Jack" }, 5874d04c3eSThomas Petazzoni { "AIN1L", NULL, "In Jack" }, 5974d04c3eSThomas Petazzoni }; 6074d04c3eSThomas Petazzoni 6174d04c3eSThomas Petazzoni static struct snd_soc_dai_link a370db_dai[] = { 6274d04c3eSThomas Petazzoni { 6374d04c3eSThomas Petazzoni .name = "CS42L51", 6474d04c3eSThomas Petazzoni .stream_name = "analog", 6574d04c3eSThomas Petazzoni .cpu_dai_name = "i2s", 6674d04c3eSThomas Petazzoni .codec_dai_name = "cs42l51-hifi", 6774d04c3eSThomas Petazzoni .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS, 6874d04c3eSThomas Petazzoni .ops = &a370db_ops, 6974d04c3eSThomas Petazzoni }, 70cece5656SThomas Petazzoni { 71cece5656SThomas Petazzoni .name = "S/PDIF out", 72cece5656SThomas Petazzoni .stream_name = "spdif-out", 73cece5656SThomas Petazzoni .cpu_dai_name = "spdif", 74cece5656SThomas Petazzoni .codec_dai_name = "dit-hifi", 75cece5656SThomas Petazzoni .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS, 76cece5656SThomas Petazzoni }, 77cece5656SThomas Petazzoni { 78cece5656SThomas Petazzoni .name = "S/PDIF in", 79cece5656SThomas Petazzoni .stream_name = "spdif-in", 80cece5656SThomas Petazzoni .cpu_dai_name = "spdif", 81cece5656SThomas Petazzoni .codec_dai_name = "dir-hifi", 82cece5656SThomas Petazzoni .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS, 83cece5656SThomas Petazzoni }, 8474d04c3eSThomas Petazzoni }; 8574d04c3eSThomas Petazzoni 8674d04c3eSThomas Petazzoni static struct snd_soc_card a370db = { 8774d04c3eSThomas Petazzoni .name = "a370db", 8874d04c3eSThomas Petazzoni .owner = THIS_MODULE, 8974d04c3eSThomas Petazzoni .dai_link = a370db_dai, 9074d04c3eSThomas Petazzoni .num_links = ARRAY_SIZE(a370db_dai), 9174d04c3eSThomas Petazzoni .dapm_widgets = a370db_dapm_widgets, 9274d04c3eSThomas Petazzoni .num_dapm_widgets = ARRAY_SIZE(a370db_dapm_widgets), 9374d04c3eSThomas Petazzoni .dapm_routes = a370db_route, 9474d04c3eSThomas Petazzoni .num_dapm_routes = ARRAY_SIZE(a370db_route), 9574d04c3eSThomas Petazzoni }; 9674d04c3eSThomas Petazzoni 9774d04c3eSThomas Petazzoni static int a370db_probe(struct platform_device *pdev) 9874d04c3eSThomas Petazzoni { 9974d04c3eSThomas Petazzoni struct snd_soc_card *card = &a370db; 10074d04c3eSThomas Petazzoni 10174d04c3eSThomas Petazzoni card->dev = &pdev->dev; 10274d04c3eSThomas Petazzoni 10374d04c3eSThomas Petazzoni a370db_dai[0].cpu_of_node = 10474d04c3eSThomas Petazzoni of_parse_phandle(pdev->dev.of_node, 10574d04c3eSThomas Petazzoni "marvell,audio-controller", 0); 10674d04c3eSThomas Petazzoni a370db_dai[0].platform_of_node = a370db_dai[0].cpu_of_node; 10774d04c3eSThomas Petazzoni 10874d04c3eSThomas Petazzoni a370db_dai[0].codec_of_node = 10974d04c3eSThomas Petazzoni of_parse_phandle(pdev->dev.of_node, 11074d04c3eSThomas Petazzoni "marvell,audio-codec", 0); 11174d04c3eSThomas Petazzoni 112cece5656SThomas Petazzoni a370db_dai[1].cpu_of_node = a370db_dai[0].cpu_of_node; 113cece5656SThomas Petazzoni a370db_dai[1].platform_of_node = a370db_dai[0].cpu_of_node; 114cece5656SThomas Petazzoni 115cece5656SThomas Petazzoni a370db_dai[1].codec_of_node = 116cece5656SThomas Petazzoni of_parse_phandle(pdev->dev.of_node, 117cece5656SThomas Petazzoni "marvell,audio-codec", 1); 118cece5656SThomas Petazzoni 119cece5656SThomas Petazzoni a370db_dai[2].cpu_of_node = a370db_dai[0].cpu_of_node; 120cece5656SThomas Petazzoni a370db_dai[2].platform_of_node = a370db_dai[0].cpu_of_node; 121cece5656SThomas Petazzoni 122cece5656SThomas Petazzoni a370db_dai[2].codec_of_node = 123cece5656SThomas Petazzoni of_parse_phandle(pdev->dev.of_node, 124cece5656SThomas Petazzoni "marvell,audio-codec", 2); 125cece5656SThomas Petazzoni 12674d04c3eSThomas Petazzoni return devm_snd_soc_register_card(card->dev, card); 12774d04c3eSThomas Petazzoni } 12874d04c3eSThomas Petazzoni 12974d04c3eSThomas Petazzoni static const struct of_device_id a370db_dt_ids[] = { 13074d04c3eSThomas Petazzoni { .compatible = "marvell,a370db-audio" }, 13174d04c3eSThomas Petazzoni { }, 13274d04c3eSThomas Petazzoni }; 13330953a80SLuis de Bethencourt MODULE_DEVICE_TABLE(of, a370db_dt_ids); 13474d04c3eSThomas Petazzoni 13574d04c3eSThomas Petazzoni static struct platform_driver a370db_driver = { 13674d04c3eSThomas Petazzoni .driver = { 13774d04c3eSThomas Petazzoni .name = "a370db-audio", 13874d04c3eSThomas Petazzoni .of_match_table = of_match_ptr(a370db_dt_ids), 13974d04c3eSThomas Petazzoni }, 14074d04c3eSThomas Petazzoni .probe = a370db_probe, 14174d04c3eSThomas Petazzoni }; 14274d04c3eSThomas Petazzoni 14374d04c3eSThomas Petazzoni module_platform_driver(a370db_driver); 14474d04c3eSThomas Petazzoni 14574d04c3eSThomas Petazzoni MODULE_AUTHOR("Thomas Petazzoni <thomas.petazzoni@free-electrons.com>"); 14674d04c3eSThomas Petazzoni MODULE_DESCRIPTION("ALSA SoC a370db audio client"); 14774d04c3eSThomas Petazzoni MODULE_LICENSE("GPL"); 14874d04c3eSThomas Petazzoni MODULE_ALIAS("platform:a370db-audio"); 149