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226 lines
5.8 KiB
226 lines
5.8 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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// |
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// Copyright 2012 Freescale Semiconductor, Inc. |
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// Copyright 2012 Linaro Ltd. |
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#include <linux/module.h> |
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#include <linux/of.h> |
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#include <linux/of_platform.h> |
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#include <linux/i2c.h> |
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#include <linux/clk.h> |
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#include <sound/soc.h> |
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#include "../codecs/sgtl5000.h" |
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#include "imx-audmux.h" |
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#define DAI_NAME_SIZE 32 |
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struct imx_sgtl5000_data { |
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struct snd_soc_dai_link dai; |
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struct snd_soc_card card; |
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char codec_dai_name[DAI_NAME_SIZE]; |
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char platform_name[DAI_NAME_SIZE]; |
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struct clk *codec_clk; |
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unsigned int clk_frequency; |
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}; |
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static int imx_sgtl5000_dai_init(struct snd_soc_pcm_runtime *rtd) |
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{ |
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struct imx_sgtl5000_data *data = snd_soc_card_get_drvdata(rtd->card); |
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struct device *dev = rtd->card->dev; |
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int ret; |
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ret = snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), SGTL5000_SYSCLK, |
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data->clk_frequency, SND_SOC_CLOCK_IN); |
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if (ret) { |
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dev_err(dev, "could not set codec driver clock params\n"); |
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return ret; |
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} |
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return 0; |
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} |
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static const struct snd_soc_dapm_widget imx_sgtl5000_dapm_widgets[] = { |
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SND_SOC_DAPM_MIC("Mic Jack", NULL), |
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SND_SOC_DAPM_LINE("Line In Jack", NULL), |
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SND_SOC_DAPM_HP("Headphone Jack", NULL), |
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SND_SOC_DAPM_SPK("Line Out Jack", NULL), |
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SND_SOC_DAPM_SPK("Ext Spk", NULL), |
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}; |
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static int imx_sgtl5000_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 device_node *ssi_np, *codec_np; |
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struct platform_device *ssi_pdev; |
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struct i2c_client *codec_dev; |
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struct imx_sgtl5000_data *data = NULL; |
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struct snd_soc_dai_link_component *comp; |
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int int_port, ext_port; |
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int ret; |
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ret = of_property_read_u32(np, "mux-int-port", &int_port); |
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if (ret) { |
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dev_err(&pdev->dev, "mux-int-port missing or invalid\n"); |
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return ret; |
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} |
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ret = of_property_read_u32(np, "mux-ext-port", &ext_port); |
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if (ret) { |
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dev_err(&pdev->dev, "mux-ext-port missing or invalid\n"); |
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return ret; |
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} |
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/* |
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* The port numbering in the hardware manual starts at 1, while |
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* the audmux API expects it starts at 0. |
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*/ |
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int_port--; |
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ext_port--; |
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ret = imx_audmux_v2_configure_port(int_port, |
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IMX_AUDMUX_V2_PTCR_SYN | |
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IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) | |
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IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) | |
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IMX_AUDMUX_V2_PTCR_TFSDIR | |
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IMX_AUDMUX_V2_PTCR_TCLKDIR, |
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IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port)); |
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if (ret) { |
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dev_err(&pdev->dev, "audmux internal port setup failed\n"); |
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return ret; |
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} |
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ret = imx_audmux_v2_configure_port(ext_port, |
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IMX_AUDMUX_V2_PTCR_SYN, |
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IMX_AUDMUX_V2_PDCR_RXDSEL(int_port)); |
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if (ret) { |
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dev_err(&pdev->dev, "audmux external port setup failed\n"); |
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return ret; |
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} |
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ssi_np = of_parse_phandle(pdev->dev.of_node, "ssi-controller", 0); |
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codec_np = of_parse_phandle(pdev->dev.of_node, "audio-codec", 0); |
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if (!ssi_np || !codec_np) { |
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dev_err(&pdev->dev, "phandle missing or invalid\n"); |
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ret = -EINVAL; |
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goto fail; |
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} |
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ssi_pdev = of_find_device_by_node(ssi_np); |
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if (!ssi_pdev) { |
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dev_dbg(&pdev->dev, "failed to find SSI platform device\n"); |
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ret = -EPROBE_DEFER; |
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goto fail; |
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} |
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put_device(&ssi_pdev->dev); |
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codec_dev = of_find_i2c_device_by_node(codec_np); |
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if (!codec_dev) { |
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dev_dbg(&pdev->dev, "failed to find codec platform device\n"); |
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ret = -EPROBE_DEFER; |
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goto fail; |
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} |
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data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); |
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if (!data) { |
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ret = -ENOMEM; |
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goto fail; |
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} |
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comp = devm_kzalloc(&pdev->dev, 3 * sizeof(*comp), GFP_KERNEL); |
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if (!comp) { |
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ret = -ENOMEM; |
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goto fail; |
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} |
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data->codec_clk = clk_get(&codec_dev->dev, NULL); |
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if (IS_ERR(data->codec_clk)) { |
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ret = PTR_ERR(data->codec_clk); |
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goto fail; |
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} |
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data->clk_frequency = clk_get_rate(data->codec_clk); |
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data->dai.cpus = &comp[0]; |
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data->dai.codecs = &comp[1]; |
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data->dai.platforms = &comp[2]; |
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data->dai.num_cpus = 1; |
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data->dai.num_codecs = 1; |
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data->dai.num_platforms = 1; |
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data->dai.name = "HiFi"; |
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data->dai.stream_name = "HiFi"; |
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data->dai.codecs->dai_name = "sgtl5000"; |
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data->dai.codecs->of_node = codec_np; |
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data->dai.cpus->of_node = ssi_np; |
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data->dai.platforms->of_node = ssi_np; |
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data->dai.init = &imx_sgtl5000_dai_init; |
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data->dai.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
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SND_SOC_DAIFMT_CBM_CFM; |
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data->card.dev = &pdev->dev; |
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ret = snd_soc_of_parse_card_name(&data->card, "model"); |
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if (ret) |
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goto fail; |
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ret = snd_soc_of_parse_audio_routing(&data->card, "audio-routing"); |
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if (ret) |
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goto fail; |
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data->card.num_links = 1; |
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data->card.owner = THIS_MODULE; |
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data->card.dai_link = &data->dai; |
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data->card.dapm_widgets = imx_sgtl5000_dapm_widgets; |
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data->card.num_dapm_widgets = ARRAY_SIZE(imx_sgtl5000_dapm_widgets); |
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platform_set_drvdata(pdev, &data->card); |
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snd_soc_card_set_drvdata(&data->card, data); |
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ret = devm_snd_soc_register_card(&pdev->dev, &data->card); |
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if (ret) { |
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if (ret != -EPROBE_DEFER) |
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dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", |
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ret); |
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goto fail; |
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} |
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of_node_put(ssi_np); |
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of_node_put(codec_np); |
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return 0; |
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fail: |
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if (data && !IS_ERR(data->codec_clk)) |
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clk_put(data->codec_clk); |
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of_node_put(ssi_np); |
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of_node_put(codec_np); |
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return ret; |
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} |
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static int imx_sgtl5000_remove(struct platform_device *pdev) |
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{ |
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struct snd_soc_card *card = platform_get_drvdata(pdev); |
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struct imx_sgtl5000_data *data = snd_soc_card_get_drvdata(card); |
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clk_put(data->codec_clk); |
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return 0; |
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} |
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static const struct of_device_id imx_sgtl5000_dt_ids[] = { |
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{ .compatible = "fsl,imx-audio-sgtl5000", }, |
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{ /* sentinel */ } |
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}; |
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MODULE_DEVICE_TABLE(of, imx_sgtl5000_dt_ids); |
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static struct platform_driver imx_sgtl5000_driver = { |
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.driver = { |
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.name = "imx-sgtl5000", |
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.pm = &snd_soc_pm_ops, |
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.of_match_table = imx_sgtl5000_dt_ids, |
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}, |
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.probe = imx_sgtl5000_probe, |
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.remove = imx_sgtl5000_remove, |
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}; |
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module_platform_driver(imx_sgtl5000_driver); |
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MODULE_AUTHOR("Shawn Guo <[email protected]>"); |
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MODULE_DESCRIPTION("Freescale i.MX SGTL5000 ASoC machine driver"); |
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MODULE_LICENSE("GPL v2"); |
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MODULE_ALIAS("platform:imx-sgtl5000");
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