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172 lines
4.4 KiB
172 lines
4.4 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* trimslice.c - TrimSlice machine ASoC driver |
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* |
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* Copyright (C) 2011 - CompuLab, Ltd. |
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* Author: Mike Rapoport <[email protected]> |
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* |
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* Based on code copyright/by: |
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* Author: Stephen Warren <[email protected]> |
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* Copyright (C) 2010-2011 - NVIDIA, Inc. |
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*/ |
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#include <linux/module.h> |
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#include <linux/of.h> |
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#include <linux/platform_device.h> |
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#include <linux/slab.h> |
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#include <sound/core.h> |
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#include <sound/jack.h> |
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#include <sound/pcm.h> |
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#include <sound/pcm_params.h> |
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#include <sound/soc.h> |
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#include "../codecs/tlv320aic23.h" |
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#include "tegra_asoc_utils.h" |
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#define DRV_NAME "tegra-snd-trimslice" |
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struct tegra_trimslice { |
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struct tegra_asoc_utils_data util_data; |
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}; |
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static int trimslice_asoc_hw_params(struct snd_pcm_substream *substream, |
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struct snd_pcm_hw_params *params) |
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{ |
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
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struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
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struct snd_soc_card *card = rtd->card; |
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struct tegra_trimslice *trimslice = snd_soc_card_get_drvdata(card); |
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int srate, mclk; |
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int err; |
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srate = params_rate(params); |
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mclk = 128 * srate; |
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err = tegra_asoc_utils_set_rate(&trimslice->util_data, srate, mclk); |
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if (err < 0) { |
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dev_err(card->dev, "Can't configure clocks\n"); |
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return err; |
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} |
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err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk, |
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SND_SOC_CLOCK_IN); |
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if (err < 0) { |
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dev_err(card->dev, "codec_dai clock not set\n"); |
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return err; |
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} |
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return 0; |
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} |
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static const struct snd_soc_ops trimslice_asoc_ops = { |
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.hw_params = trimslice_asoc_hw_params, |
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}; |
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static const struct snd_soc_dapm_widget trimslice_dapm_widgets[] = { |
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SND_SOC_DAPM_HP("Line Out", NULL), |
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SND_SOC_DAPM_LINE("Line In", NULL), |
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}; |
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static const struct snd_soc_dapm_route trimslice_audio_map[] = { |
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{"Line Out", NULL, "LOUT"}, |
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{"Line Out", NULL, "ROUT"}, |
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{"LLINEIN", NULL, "Line In"}, |
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{"RLINEIN", NULL, "Line In"}, |
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}; |
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SND_SOC_DAILINK_DEFS(single_dsp, |
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DAILINK_COMP_ARRAY(COMP_EMPTY()), |
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DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "tlv320aic23-hifi")), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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static struct snd_soc_dai_link trimslice_tlv320aic23_dai = { |
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.name = "TLV320AIC23", |
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.stream_name = "AIC23", |
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.ops = &trimslice_asoc_ops, |
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.dai_fmt = SND_SOC_DAIFMT_I2S | |
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SND_SOC_DAIFMT_NB_NF | |
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SND_SOC_DAIFMT_CBS_CFS, |
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SND_SOC_DAILINK_REG(single_dsp), |
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}; |
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static struct snd_soc_card snd_soc_trimslice = { |
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.name = "tegra-trimslice", |
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.owner = THIS_MODULE, |
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.dai_link = &trimslice_tlv320aic23_dai, |
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.num_links = 1, |
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.dapm_widgets = trimslice_dapm_widgets, |
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.num_dapm_widgets = ARRAY_SIZE(trimslice_dapm_widgets), |
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.dapm_routes = trimslice_audio_map, |
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.num_dapm_routes = ARRAY_SIZE(trimslice_audio_map), |
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.fully_routed = true, |
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}; |
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static int tegra_snd_trimslice_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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struct snd_soc_card *card = &snd_soc_trimslice; |
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struct tegra_trimslice *trimslice; |
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int ret; |
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trimslice = devm_kzalloc(&pdev->dev, sizeof(struct tegra_trimslice), |
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GFP_KERNEL); |
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if (!trimslice) |
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return -ENOMEM; |
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card->dev = &pdev->dev; |
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snd_soc_card_set_drvdata(card, trimslice); |
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trimslice_tlv320aic23_dai.codecs->of_node = of_parse_phandle(np, |
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"nvidia,audio-codec", 0); |
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if (!trimslice_tlv320aic23_dai.codecs->of_node) { |
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dev_err(&pdev->dev, |
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"Property 'nvidia,audio-codec' missing or invalid\n"); |
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return -EINVAL; |
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} |
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trimslice_tlv320aic23_dai.cpus->of_node = of_parse_phandle(np, |
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"nvidia,i2s-controller", 0); |
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if (!trimslice_tlv320aic23_dai.cpus->of_node) { |
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dev_err(&pdev->dev, |
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"Property 'nvidia,i2s-controller' missing or invalid\n"); |
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return -EINVAL; |
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} |
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trimslice_tlv320aic23_dai.platforms->of_node = |
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trimslice_tlv320aic23_dai.cpus->of_node; |
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ret = tegra_asoc_utils_init(&trimslice->util_data, &pdev->dev); |
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if (ret) |
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return ret; |
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ret = devm_snd_soc_register_card(&pdev->dev, card); |
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if (ret) |
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return dev_err_probe(&pdev->dev, ret, |
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"snd_soc_register_card failed\n"); |
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return 0; |
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} |
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static const struct of_device_id trimslice_of_match[] = { |
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{ .compatible = "nvidia,tegra-audio-trimslice", }, |
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{}, |
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}; |
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MODULE_DEVICE_TABLE(of, trimslice_of_match); |
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static struct platform_driver tegra_snd_trimslice_driver = { |
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.driver = { |
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.name = DRV_NAME, |
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.of_match_table = trimslice_of_match, |
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}, |
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.probe = tegra_snd_trimslice_probe, |
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}; |
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module_platform_driver(tegra_snd_trimslice_driver); |
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MODULE_AUTHOR("Mike Rapoport <[email protected]>"); |
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MODULE_DESCRIPTION("Trimslice machine ASoC driver"); |
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MODULE_LICENSE("GPL"); |
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MODULE_ALIAS("platform:" DRV_NAME);
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