MLK-16784-5 sound: asoc: add machine driver for micfil in iMX8MM
Add machine driver for micfill IP in iMX8MM. Signed-off-by: Cosmin-Gabriel Samoila <cosmin.samoila@nxp.com> (cherry picked from commit 3c788dfc51a44bde546572e519cac8cfca3d8f2d)5.4-rM2-2.2.x-imx-squashed
Cosmin-Gabriel Samoila
Dong Aisheng
parent
29bf3d3b48
commit
9bf74ee0f5
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@ -368,6 +368,16 @@ config SND_SOC_IMX_WM8962_ANDROID
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Say Y if you want to add support for SoC audio on an i.MX board with
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a wm8962 codec in android.
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config SND_SOC_IMX_MICFIL
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tristate "SoC Audio support for i.MX boards with micfil"
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depends on OF && I2C
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select SND_SOC_IMX_PCM_DMA
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select SND_SOC_FSL_MICFIL
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help
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Soc Audio support for i.MX boards with micfil
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Say Y if you want to add support for SoC audio on
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an i.MX board with micfil.
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config SND_SOC_IMX_ES8328
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tristate "SoC Audio support for i.MX boards with the ES8328 codec"
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depends on OF && (I2C || SPI)
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@ -74,6 +74,7 @@ snd-soc-imx-pdm-objs := imx-pdm.o
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snd-soc-imx-ak4458-objs := imx-ak4458.o
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snd-soc-imx-ak5558-objs := imx-ak5558.o
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snd-soc-imx-ak4497-objs := imx-ak4497.o
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snd-soc-imx-micfil-objs := imx-micfil.o
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obj-$(CONFIG_SND_SOC_EUKREA_TLV320) += snd-soc-eukrea-tlv320.o
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obj-$(CONFIG_SND_SOC_PHYCORE_AC97) += snd-soc-phycore-ac97.o
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@ -95,3 +96,4 @@ obj-$(CONFIG_SND_SOC_IMX_PDM_MIC) += snd-soc-imx-pdm.o
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obj-$(CONFIG_SND_SOC_IMX_AK4458) += snd-soc-imx-ak4458.o
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obj-$(CONFIG_SND_SOC_IMX_AK5558) += snd-soc-imx-ak5558.o
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obj-$(CONFIG_SND_SOC_IMX_AK4497) += snd-soc-imx-ak4497.o
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obj-$(CONFIG_SND_SOC_IMX_MICFIL) += snd-soc-imx-micfil.o
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@ -0,0 +1,184 @@
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/*
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* Copyright 2018 NXP
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*
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* The code contained herein is licensed under the GNU General Public
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* License. You may obtain a copy of the GNU General Public License
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* Version 2 or later at the following locations:
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*
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* http://www.opensource.org/licenses/gpl-license.html
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* http://www.gnu.org/copyleft/gpl.html
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*/
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#include <linux/module.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 <linux/slab.h>
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#include <linux/gpio.h>
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#include <linux/clk.h>
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#include <sound/soc.h>
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#include <sound/jack.h>
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#include <sound/control.h>
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#include <sound/pcm_params.h>
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#include <sound/soc-dapm.h>
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#include <linux/pinctrl/consumer.h>
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#include "fsl_micfil.h"
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#define RX 0
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#define TX 1
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struct imx_micfil_data {
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char name[32];
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struct snd_soc_dai_link dai;
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struct snd_soc_card card;
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};
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static int imx_micfil_startup(struct snd_pcm_substream *substream)
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{
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struct snd_pcm_runtime *runtime = substream->runtime;
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static struct snd_pcm_hw_constraint_list constraint_rates;
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int ret;
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static u32 support_rates[] = {11025, 16000, 22050,
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32000, 44100, 48000,};
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constraint_rates.list = support_rates;
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constraint_rates.count = ARRAY_SIZE(support_rates);
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ret = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
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&constraint_rates);
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if (ret)
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return ret;
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return 0;
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}
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static int imx_micfil_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 = substream->private_data;
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bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
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struct device *dev = rtd->card->dev;
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unsigned int fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF;
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unsigned int rate = params_rate(params);
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int ret, dir;
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/* For playback the XTOR is slave, and for record is master */
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fmt |= tx ? SND_SOC_DAIFMT_CBS_CFS : SND_SOC_DAIFMT_CBM_CFM;
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dir = tx ? SND_SOC_CLOCK_OUT : SND_SOC_CLOCK_IN;
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/* set cpu DAI configuration */
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ret = snd_soc_dai_set_fmt(rtd->cpu_dai, fmt);
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if (ret) {
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dev_err(dev, "failed to set cpu dai fmt: %d\n", ret);
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return ret;
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}
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/* Specific configurations of DAIs starts from here */
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ret = snd_soc_dai_set_sysclk(rtd->cpu_dai, 0,
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rate, dir);
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if (ret) {
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dev_err(dev,
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"%s: failed to set cpu sysclk: %d\n", __func__,
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ret);
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return ret;
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}
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return 0;
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}
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struct snd_soc_ops imx_micfil_ops = {
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.startup = imx_micfil_startup,
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.hw_params = imx_micfil_hw_params,
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};
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static int imx_micfil_probe(struct platform_device *pdev)
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{
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struct device_node *cpu_np;
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struct platform_device *cpu_pdev;
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struct imx_micfil_data *data;
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struct snd_soc_dai_link_component *dlc;
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int ret;
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dlc = devm_kzalloc(&pdev->dev, 3 * sizeof(*dlc), GFP_KERNEL);
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if (!dlc)
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return -ENOMEM;
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cpu_np = of_parse_phandle(pdev->dev.of_node, "cpu-dai", 0);
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if (!cpu_np) {
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dev_err(&pdev->dev, "cpu dai 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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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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strncpy(data->name, cpu_np->name, sizeof(data->name) - 1);
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cpu_pdev = of_find_device_by_node(cpu_np);
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if (!cpu_pdev) {
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dev_err(&pdev->dev, "failed to find MICFIL platform device\n");
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ret = -EINVAL;
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goto fail;
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}
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data->dai.cpus = &dlc[0];
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data->dai.num_cpus = 1;
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data->dai.platforms = &dlc[1];
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data->dai.num_platforms = 1;
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data->dai.codecs = &dlc[2];
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data->dai.num_codecs = 1;
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data->dai.name = "micfil hifi";
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data->dai.stream_name = "micfil hifi";
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data->dai.codecs->dai_name = "snd-soc-dummy-dai";
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data->dai.codecs->name = "snd-soc-dummy";
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data->dai.cpus->dai_name = dev_name(&cpu_pdev->dev);
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data->dai.platforms->of_node = cpu_np;
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data->dai.playback_only = false;
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data->dai.ops = &imx_micfil_ops;
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data->card.num_links = 1;
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data->card.dai_link = &data->dai;
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data->card.dev = &pdev->dev;
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data->card.owner = THIS_MODULE;
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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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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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dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
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goto fail;
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}
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fail:
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if (cpu_np)
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of_node_put(cpu_np);
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return ret;
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}
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static const struct of_device_id imx_micfil_dt_ids[] = {
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{ .compatible = "fsl,imx-audio-micfil", },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(of, imx_micfil_dt_ids);
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static struct platform_driver imx_micfil_driver = {
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.driver = {
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.name = "imx-micfil",
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.owner = THIS_MODULE,
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.pm = &snd_soc_pm_ops,
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.of_match_table = imx_micfil_dt_ids,
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},
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.probe = imx_micfil_probe,
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};
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module_platform_driver(imx_micfil_driver);
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MODULE_AUTHOR("Cosmin-Gabriel Samoila <cosmin.samoila@nxp.com>");
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MODULE_DESCRIPTION("NXP Micfil ASoC machine driver");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("platform:imx-micfil");
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