| // SPDX-License-Identifier: GPL-2.0-or-later |
| /* |
| * Copyright 2011 Freescale Semiconductor, Inc. |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/device.h> |
| #include <linux/of.h> |
| #include <linux/of_device.h> |
| #include <sound/core.h> |
| #include <sound/pcm.h> |
| #include <sound/soc.h> |
| #include <sound/jack.h> |
| #include <sound/soc-dapm.h> |
| |
| #include "../codecs/sgtl5000.h" |
| #include "mxs-saif.h" |
| |
| static int mxs_sgtl5000_hw_params(struct snd_pcm_substream *substream, |
| struct snd_pcm_hw_params *params) |
| { |
| struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
| struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
| unsigned int rate = params_rate(params); |
| u32 mclk; |
| int ret; |
| |
| /* sgtl5000 does not support 512*rate when in 96000 fs */ |
| switch (rate) { |
| case 96000: |
| mclk = 256 * rate; |
| break; |
| default: |
| mclk = 512 * rate; |
| break; |
| } |
| |
| /* Set SGTL5000's SYSCLK (provided by SAIF MCLK) */ |
| ret = snd_soc_dai_set_sysclk(codec_dai, SGTL5000_SYSCLK, mclk, 0); |
| if (ret) { |
| dev_err(codec_dai->dev, "Failed to set sysclk to %u.%03uMHz\n", |
| mclk / 1000000, mclk / 1000 % 1000); |
| return ret; |
| } |
| |
| /* The SAIF MCLK should be the same as SGTL5000_SYSCLK */ |
| ret = snd_soc_dai_set_sysclk(cpu_dai, MXS_SAIF_MCLK, mclk, 0); |
| if (ret) { |
| dev_err(cpu_dai->dev, "Failed to set sysclk to %u.%03uMHz\n", |
| mclk / 1000000, mclk / 1000 % 1000); |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| static const struct snd_soc_ops mxs_sgtl5000_hifi_ops = { |
| .hw_params = mxs_sgtl5000_hw_params, |
| }; |
| |
| #define MXS_SGTL5000_DAI_FMT (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | \ |
| SND_SOC_DAIFMT_CBS_CFS) |
| |
| |
| SND_SOC_DAILINK_DEFS(hifi_tx, |
| DAILINK_COMP_ARRAY(COMP_EMPTY()), |
| DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "sgtl5000")), |
| DAILINK_COMP_ARRAY(COMP_EMPTY())); |
| |
| SND_SOC_DAILINK_DEFS(hifi_rx, |
| DAILINK_COMP_ARRAY(COMP_EMPTY()), |
| DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "sgtl5000")), |
| DAILINK_COMP_ARRAY(COMP_EMPTY())); |
| |
| static struct snd_soc_dai_link mxs_sgtl5000_dai[] = { |
| { |
| .name = "HiFi Tx", |
| .stream_name = "HiFi Playback", |
| .dai_fmt = MXS_SGTL5000_DAI_FMT, |
| .ops = &mxs_sgtl5000_hifi_ops, |
| .playback_only = true, |
| SND_SOC_DAILINK_REG(hifi_tx), |
| }, { |
| .name = "HiFi Rx", |
| .stream_name = "HiFi Capture", |
| .dai_fmt = MXS_SGTL5000_DAI_FMT, |
| .ops = &mxs_sgtl5000_hifi_ops, |
| .capture_only = true, |
| SND_SOC_DAILINK_REG(hifi_rx), |
| }, |
| }; |
| |
| static const struct snd_soc_dapm_widget mxs_sgtl5000_dapm_widgets[] = { |
| SND_SOC_DAPM_MIC("Mic Jack", NULL), |
| SND_SOC_DAPM_LINE("Line In Jack", NULL), |
| SND_SOC_DAPM_HP("Headphone Jack", NULL), |
| SND_SOC_DAPM_SPK("Line Out Jack", NULL), |
| SND_SOC_DAPM_SPK("Ext Spk", NULL), |
| }; |
| |
| static struct snd_soc_card mxs_sgtl5000 = { |
| .name = "mxs_sgtl5000", |
| .owner = THIS_MODULE, |
| .dai_link = mxs_sgtl5000_dai, |
| .num_links = ARRAY_SIZE(mxs_sgtl5000_dai), |
| }; |
| |
| static int mxs_sgtl5000_probe(struct platform_device *pdev) |
| { |
| struct snd_soc_card *card = &mxs_sgtl5000; |
| int ret, i; |
| struct device_node *np = pdev->dev.of_node; |
| struct device_node *saif_np[2], *codec_np; |
| |
| saif_np[0] = of_parse_phandle(np, "saif-controllers", 0); |
| saif_np[1] = of_parse_phandle(np, "saif-controllers", 1); |
| codec_np = of_parse_phandle(np, "audio-codec", 0); |
| if (!saif_np[0] || !saif_np[1] || !codec_np) { |
| dev_err(&pdev->dev, "phandle missing or invalid\n"); |
| return -EINVAL; |
| } |
| |
| for (i = 0; i < 2; i++) { |
| mxs_sgtl5000_dai[i].codecs->name = NULL; |
| mxs_sgtl5000_dai[i].codecs->of_node = codec_np; |
| mxs_sgtl5000_dai[i].cpus->dai_name = NULL; |
| mxs_sgtl5000_dai[i].cpus->of_node = saif_np[i]; |
| mxs_sgtl5000_dai[i].platforms->name = NULL; |
| mxs_sgtl5000_dai[i].platforms->of_node = saif_np[i]; |
| } |
| |
| of_node_put(codec_np); |
| of_node_put(saif_np[0]); |
| of_node_put(saif_np[1]); |
| |
| /* |
| * Set an init clock(11.28Mhz) for sgtl5000 initialization(i2c r/w). |
| * The Sgtl5000 sysclk is derived from saif0 mclk and it's range |
| * should be >= 8MHz and <= 27M. |
| */ |
| ret = mxs_saif_get_mclk(0, 44100 * 256, 44100); |
| if (ret) { |
| dev_err(&pdev->dev, "failed to get mclk\n"); |
| return ret; |
| } |
| |
| card->dev = &pdev->dev; |
| |
| if (of_find_property(np, "audio-routing", NULL)) { |
| card->dapm_widgets = mxs_sgtl5000_dapm_widgets; |
| card->num_dapm_widgets = ARRAY_SIZE(mxs_sgtl5000_dapm_widgets); |
| |
| ret = snd_soc_of_parse_audio_routing(card, "audio-routing"); |
| if (ret) { |
| dev_err(&pdev->dev, "failed to parse audio-routing (%d)\n", |
| ret); |
| return ret; |
| } |
| } |
| |
| ret = devm_snd_soc_register_card(&pdev->dev, card); |
| if (ret) { |
| if (ret != -EPROBE_DEFER) |
| dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", |
| ret); |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| static int mxs_sgtl5000_remove(struct platform_device *pdev) |
| { |
| mxs_saif_put_mclk(0); |
| |
| return 0; |
| } |
| |
| static const struct of_device_id mxs_sgtl5000_dt_ids[] = { |
| { .compatible = "fsl,mxs-audio-sgtl5000", }, |
| { /* sentinel */ } |
| }; |
| MODULE_DEVICE_TABLE(of, mxs_sgtl5000_dt_ids); |
| |
| static struct platform_driver mxs_sgtl5000_audio_driver = { |
| .driver = { |
| .name = "mxs-sgtl5000", |
| .of_match_table = mxs_sgtl5000_dt_ids, |
| }, |
| .probe = mxs_sgtl5000_probe, |
| .remove = mxs_sgtl5000_remove, |
| }; |
| |
| module_platform_driver(mxs_sgtl5000_audio_driver); |
| |
| MODULE_AUTHOR("Freescale Semiconductor, Inc."); |
| MODULE_DESCRIPTION("MXS ALSA SoC Machine driver"); |
| MODULE_LICENSE("GPL"); |
| MODULE_ALIAS("platform:mxs-sgtl5000"); |