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Deferred probe is an expected return value for snd_soc_register_card(). Given that the driver deals with it properly, there's no need to output a warning that may potentially confuse users. Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Link: https://lore.kernel.org/r/20201111103245.152189-1-jonathanh@nvidia.com Signed-off-by: Mark Brown <broonie@kernel.org>
173 lines
4.4 KiB
C
173 lines
4.4 KiB
C
// 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 <mike@compulab.co.il>
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*
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* Based on code copyright/by:
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* Author: Stephen Warren <swarren@nvidia.com>
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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 <mike@compulab.co.il>");
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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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