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240 lines
5.9 KiB
240 lines
5.9 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/gpio.h> |
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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/of_gpio.h> |
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#include <sound/soc.h> |
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#include <sound/jack.h> |
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#include "imx-audmux.h" |
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#define DAI_NAME_SIZE 32 |
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#define MUX_PORT_MAX 7 |
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struct imx_es8328_data { |
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struct device *dev; |
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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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int jack_gpio; |
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}; |
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static struct snd_soc_jack_gpio headset_jack_gpios[] = { |
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{ |
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.gpio = -1, |
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.name = "headset-gpio", |
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.report = SND_JACK_HEADSET, |
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.invert = 0, |
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.debounce_time = 200, |
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}, |
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}; |
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static struct snd_soc_jack headset_jack; |
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static int imx_es8328_dai_init(struct snd_soc_pcm_runtime *rtd) |
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{ |
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struct imx_es8328_data *data = container_of(rtd->card, |
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struct imx_es8328_data, card); |
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int ret = 0; |
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/* Headphone jack detection */ |
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if (gpio_is_valid(data->jack_gpio)) { |
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ret = snd_soc_card_jack_new(rtd->card, "Headphone", |
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SND_JACK_HEADPHONE | SND_JACK_BTN_0, |
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&headset_jack, NULL, 0); |
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if (ret) |
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return ret; |
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headset_jack_gpios[0].gpio = data->jack_gpio; |
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ret = snd_soc_jack_add_gpios(&headset_jack, |
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ARRAY_SIZE(headset_jack_gpios), |
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headset_jack_gpios); |
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} |
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return ret; |
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} |
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static const struct snd_soc_dapm_widget imx_es8328_dapm_widgets[] = { |
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SND_SOC_DAPM_MIC("Mic Jack", NULL), |
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SND_SOC_DAPM_HP("Headphone", NULL), |
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SND_SOC_DAPM_SPK("Speaker", NULL), |
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SND_SOC_DAPM_REGULATOR_SUPPLY("audio-amp", 1, 0), |
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}; |
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static int imx_es8328_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 = NULL, *codec_np = NULL; |
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struct platform_device *ssi_pdev; |
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struct imx_es8328_data *data; |
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struct snd_soc_dai_link_component *comp; |
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u32 int_port, ext_port; |
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int ret; |
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struct device *dev = &pdev->dev; |
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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(dev, "mux-int-port missing or invalid\n"); |
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goto fail; |
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} |
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if (int_port > MUX_PORT_MAX || int_port == 0) { |
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dev_err(dev, "mux-int-port: hardware only has %d mux ports\n", |
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MUX_PORT_MAX); |
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goto fail; |
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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(dev, "mux-ext-port missing or invalid\n"); |
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goto fail; |
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} |
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if (ext_port > MUX_PORT_MAX || ext_port == 0) { |
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dev_err(dev, "mux-ext-port: hardware only has %d mux ports\n", |
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MUX_PORT_MAX); |
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ret = -EINVAL; |
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goto fail; |
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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(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(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(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_err(dev, "failed to find SSI platform device\n"); |
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ret = -EINVAL; |
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goto fail; |
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} |
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data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); |
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if (!data) { |
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ret = -ENOMEM; |
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goto put_device; |
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} |
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comp = devm_kzalloc(dev, 3 * sizeof(*comp), GFP_KERNEL); |
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if (!comp) { |
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ret = -ENOMEM; |
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goto put_device; |
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} |
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data->dev = dev; |
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data->jack_gpio = of_get_named_gpio(pdev->dev.of_node, "jack-gpio", 0); |
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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 = "es8328-hifi-analog"; |
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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_es8328_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 = dev; |
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data->card.dapm_widgets = imx_es8328_dapm_widgets; |
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data->card.num_dapm_widgets = ARRAY_SIZE(imx_es8328_dapm_widgets); |
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ret = snd_soc_of_parse_card_name(&data->card, "model"); |
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if (ret) { |
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dev_err(dev, "Unable to parse card name\n"); |
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goto put_device; |
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} |
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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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dev_err(dev, "Unable to parse routing: %d\n", ret); |
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goto put_device; |
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} |
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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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ret = snd_soc_register_card(&data->card); |
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if (ret) { |
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dev_err(dev, "Unable to register: %d\n", ret); |
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goto put_device; |
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} |
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platform_set_drvdata(pdev, data); |
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put_device: |
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put_device(&ssi_pdev->dev); |
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fail: |
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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_es8328_remove(struct platform_device *pdev) |
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{ |
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struct imx_es8328_data *data = platform_get_drvdata(pdev); |
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snd_soc_unregister_card(&data->card); |
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return 0; |
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} |
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static const struct of_device_id imx_es8328_dt_ids[] = { |
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{ .compatible = "fsl,imx-audio-es8328", }, |
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{ /* sentinel */ } |
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}; |
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MODULE_DEVICE_TABLE(of, imx_es8328_dt_ids); |
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static struct platform_driver imx_es8328_driver = { |
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.driver = { |
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.name = "imx-es8328", |
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.of_match_table = imx_es8328_dt_ids, |
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}, |
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.probe = imx_es8328_probe, |
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.remove = imx_es8328_remove, |
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}; |
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module_platform_driver(imx_es8328_driver); |
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MODULE_AUTHOR("Sean Cross <[email protected]>"); |
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MODULE_DESCRIPTION("Kosagi i.MX6 ES8328 ASoC machine driver"); |
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MODULE_LICENSE("GPL v2"); |
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MODULE_ALIAS("platform:imx-audio-es8328");
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