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>
diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig
index 189d3eb..bbcbf93 100644
--- a/sound/soc/fsl/Kconfig
+++ b/sound/soc/fsl/Kconfig
@@ -406,6 +406,16 @@
Say Y if you want to add support for SoC audio on an i.MX board with
a wm8962 codec in android.
+config SND_SOC_IMX_MICFIL
+ tristate "SoC Audio support for i.MX boards with micfil"
+ depends on OF && I2C
+ select SND_SOC_IMX_PCM_DMA
+ select SND_SOC_FSL_MICFIL
+ help
+ Soc Audio support for i.MX boards with micfil
+ Say Y if you want to add support for SoC audio on
+ an i.MX board with micfil.
+
config SND_SOC_IMX_RPMSG
tristate "SoC Audio support for i.MX boards with rpmsg"
depends on OF && I2C && INPUT
diff --git a/sound/soc/fsl/Makefile b/sound/soc/fsl/Makefile
index f444f4a..ccbf07f 100644
--- a/sound/soc/fsl/Makefile
+++ b/sound/soc/fsl/Makefile
@@ -90,6 +90,7 @@
snd-soc-imx-ak4458-objs := imx-ak4458.o
snd-soc-imx-ak5558-objs := imx-ak5558.o
snd-soc-imx-ak4497-objs := imx-ak4497.o
+snd-soc-imx-micfil-objs := imx-micfil.o
obj-$(CONFIG_SND_SOC_EUKREA_TLV320) += snd-soc-eukrea-tlv320.o
obj-$(CONFIG_SND_SOC_PHYCORE_AC97) += snd-soc-phycore-ac97.o
@@ -116,5 +117,6 @@
obj-$(CONFIG_SND_SOC_IMX_AK4458) += snd-soc-imx-ak4458.o
obj-$(CONFIG_SND_SOC_IMX_AK5558) += snd-soc-imx-ak5558.o
obj-$(CONFIG_SND_SOC_IMX_AK4497) += snd-soc-imx-ak4497.o
+obj-$(CONFIG_SND_SOC_IMX_MICFIL) += snd-soc-imx-micfil.o
AFLAGS_hdmi_pcm.o := -march=armv7-a -mtune=cortex-a9 -mfpu=neon -mfloat-abi=softfp
diff --git a/sound/soc/fsl/imx-micfil.c b/sound/soc/fsl/imx-micfil.c
new file mode 100644
index 0000000..c4721d7
--- /dev/null
+++ b/sound/soc/fsl/imx-micfil.c
@@ -0,0 +1,172 @@
+/*
+ * Copyright 2018 NXP
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <linux/i2c.h>
+#include <linux/of_gpio.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/clk.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+#include <sound/control.h>
+#include <sound/pcm_params.h>
+#include <sound/soc-dapm.h>
+#include <linux/pinctrl/consumer.h>
+#include "fsl_micfil.h"
+
+#define RX 0
+#define TX 1
+
+struct imx_micfil_data {
+ char name[32];
+ struct snd_soc_dai_link dai;
+ struct snd_soc_card card;
+};
+
+static int imx_micfil_startup(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ static struct snd_pcm_hw_constraint_list constraint_rates;
+ int ret;
+ static u32 support_rates[] = {11025, 16000, 22050,
+ 32000, 44100, 48000,};
+
+ constraint_rates.list = support_rates;
+ constraint_rates.count = ARRAY_SIZE(support_rates);
+
+ ret = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
+ &constraint_rates);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int imx_micfil_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+ struct device *dev = rtd->card->dev;
+ unsigned int fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF;
+ int ret, dir;
+
+ /* For playback the XTOR is slave, and for record is master */
+ fmt |= tx ? SND_SOC_DAIFMT_CBS_CFS : SND_SOC_DAIFMT_CBM_CFM;
+ dir = tx ? SND_SOC_CLOCK_OUT : SND_SOC_CLOCK_IN;
+
+ /* set cpu DAI configuration */
+ ret = snd_soc_dai_set_fmt(rtd->cpu_dai, fmt);
+ if (ret) {
+ dev_err(dev, "failed to set cpu dai fmt: %d\n", ret);
+ return ret;
+ }
+
+ /* Specific configurations of DAIs starts from here */
+ ret = snd_soc_dai_set_sysclk(rtd->cpu_dai, 0,
+ 0, dir);
+ if (ret) {
+ dev_err(dev,
+ "%s: failed to set cpu sysclk: %d\n", __func__,
+ ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+struct snd_soc_ops imx_micfil_ops = {
+ .startup = imx_micfil_startup,
+ .hw_params = imx_micfil_hw_params,
+};
+
+static int imx_micfil_probe(struct platform_device *pdev)
+{
+ struct device_node *cpu_np;
+ struct platform_device *cpu_pdev;
+ struct imx_micfil_data *data;
+ int ret;
+
+ cpu_np = of_parse_phandle(pdev->dev.of_node, "cpu-dai", 0);
+ if (!cpu_np) {
+ dev_err(&pdev->dev, "cpu dai phandle missing or invalid\n");
+ ret = -EINVAL;
+ goto fail;
+ }
+
+ data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+ if (!data) {
+ ret = -ENOMEM;
+ goto fail;
+ }
+
+ strncpy(data->name, cpu_np->name, sizeof(data->name) - 1);
+
+ cpu_pdev = of_find_device_by_node(cpu_np);
+ if (!cpu_pdev) {
+ dev_err(&pdev->dev, "failed to find MICFIL platform device\n");
+ ret = -EINVAL;
+ goto fail;
+ }
+
+ data->dai.name = "micfil hifi";
+ data->dai.stream_name = "micfil hifi";
+ data->dai.codec_dai_name = "snd-soc-dummy-dai";
+ data->dai.codec_name = "snd-soc-dummy";
+ data->dai.cpu_dai_name = dev_name(&cpu_pdev->dev);
+ data->dai.platform_of_node = cpu_np;
+ data->dai.playback_only = false;
+ data->dai.ops = &imx_micfil_ops;
+ data->card.num_links = 1;
+ data->card.dai_link = &data->dai;
+ data->card.dev = &pdev->dev;
+ data->card.owner = THIS_MODULE;
+ ret = snd_soc_of_parse_card_name(&data->card, "model");
+ if (ret)
+ goto fail;
+
+ platform_set_drvdata(pdev, &data->card);
+ snd_soc_card_set_drvdata(&data->card, data);
+ ret = devm_snd_soc_register_card(&pdev->dev, &data->card);
+ if (ret) {
+ dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
+ goto fail;
+ }
+
+fail:
+ if (cpu_np)
+ of_node_put(cpu_np);
+ return ret;
+}
+
+static const struct of_device_id imx_micfil_dt_ids[] = {
+ { .compatible = "fsl,imx-audio-micfil", },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, imx_micfil_dt_ids);
+
+static struct platform_driver imx_micfil_driver = {
+ .driver = {
+ .name = "imx-micfil",
+ .owner = THIS_MODULE,
+ .pm = &snd_soc_pm_ops,
+ .of_match_table = imx_micfil_dt_ids,
+ },
+ .probe = imx_micfil_probe,
+};
+module_platform_driver(imx_micfil_driver);
+
+MODULE_AUTHOR("Cosmin-Gabriel Samoila <cosmin.samoila@nxp.com>");
+MODULE_DESCRIPTION("NXP Micfil ASoC machine driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:imx-micfil");
