Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 625 insertions, 0 deletions

diff --git a/sound/soc/rockchip/rk3399_gru_sound.c b/sound/soc/rockchip/rk3399_gru_sound.c
new file mode 100644
index 000000000..2540b9ba3
--- /dev/null
+++ b/sound/soc/rockchip/rk3399_gru_sound.c
@@ -0,0 +1,625 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Rockchip machine ASoC driver for boards using MAX98357A/RT5514/DA7219
+ *
+ * Copyright (c) 2016, ROCKCHIP CORPORATION.  All rights reserved.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/of_gpio.h>
+#include <linux/delay.h>
+#include <linux/spi/spi.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <sound/core.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include "rockchip_i2s.h"
+#include "../codecs/da7219.h"
+#include "../codecs/da7219-aad.h"
+#include "../codecs/rt5514.h"
+
+#define DRV_NAME "rk3399-gru-sound"
+
+#define SOUND_FS	256
+
+static unsigned int dmic_wakeup_delay;
+
+static struct snd_soc_jack rockchip_sound_jack;
+
+/* Headset jack detection DAPM pins */
+static struct snd_soc_jack_pin rockchip_sound_jack_pins[] = {
+	{
+		.pin = "Headphones",
+		.mask = SND_JACK_HEADPHONE,
+	},
+	{
+		.pin = "Headset Mic",
+		.mask = SND_JACK_MICROPHONE,
+	},
+
+};
+
+static const struct snd_soc_dapm_widget rockchip_dapm_widgets[] = {
+	SND_SOC_DAPM_HP("Headphones", NULL),
+	SND_SOC_DAPM_SPK("Speakers", NULL),
+	SND_SOC_DAPM_MIC("Headset Mic", NULL),
+	SND_SOC_DAPM_MIC("Int Mic", NULL),
+	SND_SOC_DAPM_LINE("HDMI", NULL),
+};
+
+static const struct snd_kcontrol_new rockchip_controls[] = {
+	SOC_DAPM_PIN_SWITCH("Headphones"),
+	SOC_DAPM_PIN_SWITCH("Speakers"),
+	SOC_DAPM_PIN_SWITCH("Headset Mic"),
+	SOC_DAPM_PIN_SWITCH("Int Mic"),
+	SOC_DAPM_PIN_SWITCH("HDMI"),
+};
+
+static int rockchip_sound_max98357a_hw_params(struct snd_pcm_substream *substream,
+			     struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	unsigned int mclk;
+	int ret;
+
+	mclk = params_rate(params) * SOUND_FS;
+
+	ret = snd_soc_dai_set_sysclk(asoc_rtd_to_cpu(rtd, 0), 0, mclk, 0);
+	if (ret) {
+		dev_err(rtd->card->dev, "%s() error setting sysclk to %u: %d\n",
+				__func__, mclk, ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int rockchip_sound_rt5514_hw_params(struct snd_pcm_substream *substream,
+			     struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+	unsigned int mclk;
+	int ret;
+
+	mclk = params_rate(params) * SOUND_FS;
+
+	ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
+				     SND_SOC_CLOCK_OUT);
+	if (ret < 0) {
+		dev_err(rtd->card->dev, "Can't set cpu clock out %d\n", ret);
+		return ret;
+	}
+
+	ret = snd_soc_dai_set_sysclk(codec_dai, RT5514_SCLK_S_MCLK,
+				     mclk, SND_SOC_CLOCK_IN);
+	if (ret) {
+		dev_err(rtd->card->dev, "%s() error setting sysclk to %u: %d\n",
+				__func__, params_rate(params) * 512, ret);
+		return ret;
+	}
+
+	/* Wait for DMIC stable */
+	msleep(dmic_wakeup_delay);
+
+	return 0;
+}
+
+static int rockchip_sound_da7219_hw_params(struct snd_pcm_substream *substream,
+			     struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+	int mclk, ret;
+
+	/* in bypass mode, the mclk has to be one of the frequencies below */
+	switch (params_rate(params)) {
+	case 8000:
+	case 16000:
+	case 24000:
+	case 32000:
+	case 48000:
+	case 64000:
+	case 96000:
+		mclk = 12288000;
+		break;
+	case 11025:
+	case 22050:
+	case 44100:
+	case 88200:
+		mclk = 11289600;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
+				     SND_SOC_CLOCK_OUT);
+	if (ret < 0) {
+		dev_err(codec_dai->dev, "Can't set cpu clock out %d\n", ret);
+		return ret;
+	}
+
+	ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
+				     SND_SOC_CLOCK_IN);
+	if (ret < 0) {
+		dev_err(codec_dai->dev, "Can't set codec clock in %d\n", ret);
+		return ret;
+	}
+
+	ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_MCLK, 0, 0);
+	if (ret < 0) {
+		dev_err(codec_dai->dev, "Can't set pll sysclk mclk %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static struct snd_soc_jack cdn_dp_card_jack;
+
+static int rockchip_sound_cdndp_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+	struct snd_soc_card *card = rtd->card;
+	int ret;
+
+	/* Enable jack detection. */
+	ret = snd_soc_card_jack_new(card, "DP Jack", SND_JACK_LINEOUT,
+				    &cdn_dp_card_jack);
+	if (ret) {
+		dev_err(card->dev, "Can't create DP Jack %d\n", ret);
+		return ret;
+	}
+
+	return snd_soc_component_set_jack(component, &cdn_dp_card_jack, NULL);
+}
+
+static int rockchip_sound_da7219_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+	int ret;
+
+	/* We need default MCLK and PLL settings for the accessory detection */
+	ret = snd_soc_dai_set_sysclk(codec_dai, 0, 12288000,
+				     SND_SOC_CLOCK_IN);
+	if (ret < 0) {
+		dev_err(codec_dai->dev, "Init can't set codec clock in %d\n", ret);
+		return ret;
+	}
+
+	ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_MCLK, 0, 0);
+	if (ret < 0) {
+		dev_err(codec_dai->dev, "Init can't set pll sysclk mclk %d\n", ret);
+		return ret;
+	}
+
+	/* Enable Headset and 4 Buttons Jack detection */
+	ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack",
+					 SND_JACK_HEADSET | SND_JACK_LINEOUT |
+					 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
+					 SND_JACK_BTN_2 | SND_JACK_BTN_3,
+					 &rockchip_sound_jack,
+					 rockchip_sound_jack_pins,
+					 ARRAY_SIZE(rockchip_sound_jack_pins));
+
+	if (ret) {
+		dev_err(rtd->card->dev, "New Headset Jack failed! (%d)\n", ret);
+		return ret;
+	}
+
+	snd_jack_set_key(
+		rockchip_sound_jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
+	snd_jack_set_key(
+		rockchip_sound_jack.jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
+	snd_jack_set_key(
+		rockchip_sound_jack.jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
+	snd_jack_set_key(
+		rockchip_sound_jack.jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
+
+	da7219_aad_jack_det(component, &rockchip_sound_jack);
+
+	return 0;
+}
+
+static int rockchip_sound_dmic_hw_params(struct snd_pcm_substream *substream,
+			     struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	unsigned int mclk;
+	int ret;
+
+	mclk = params_rate(params) * SOUND_FS;
+
+	ret = snd_soc_dai_set_sysclk(asoc_rtd_to_cpu(rtd, 0), 0, mclk, 0);
+	if (ret) {
+		dev_err(rtd->card->dev, "%s() error setting sysclk to %u: %d\n",
+				__func__, mclk, ret);
+		return ret;
+	}
+
+	/* Wait for DMIC stable */
+	msleep(dmic_wakeup_delay);
+
+	return 0;
+}
+
+static int rockchip_sound_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+
+	runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
+	return snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_RATE,
+			8000, 96000);
+}
+
+static const struct snd_soc_ops rockchip_sound_max98357a_ops = {
+	.startup = rockchip_sound_startup,
+	.hw_params = rockchip_sound_max98357a_hw_params,
+};
+
+static const struct snd_soc_ops rockchip_sound_rt5514_ops = {
+	.startup = rockchip_sound_startup,
+	.hw_params = rockchip_sound_rt5514_hw_params,
+};
+
+static const struct snd_soc_ops rockchip_sound_da7219_ops = {
+	.startup = rockchip_sound_startup,
+	.hw_params = rockchip_sound_da7219_hw_params,
+};
+
+static const struct snd_soc_ops rockchip_sound_dmic_ops = {
+	.startup = rockchip_sound_startup,
+	.hw_params = rockchip_sound_dmic_hw_params,
+};
+
+static struct snd_soc_card rockchip_sound_card = {
+	.name = "rk3399-gru-sound",
+	.owner = THIS_MODULE,
+	.dapm_widgets = rockchip_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(rockchip_dapm_widgets),
+	.controls = rockchip_controls,
+	.num_controls = ARRAY_SIZE(rockchip_controls),
+};
+
+enum {
+	DAILINK_CDNDP,
+	DAILINK_DA7219,
+	DAILINK_DMIC,
+	DAILINK_MAX98357A,
+	DAILINK_RT5514,
+	DAILINK_RT5514_DSP,
+};
+
+SND_SOC_DAILINK_DEFS(cdndp,
+	DAILINK_COMP_ARRAY(COMP_EMPTY()),
+	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "spdif-hifi")),
+	DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+SND_SOC_DAILINK_DEFS(da7219,
+	DAILINK_COMP_ARRAY(COMP_EMPTY()),
+	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "da7219-hifi")),
+	DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+SND_SOC_DAILINK_DEFS(dmic,
+	DAILINK_COMP_ARRAY(COMP_EMPTY()),
+	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "dmic-hifi")),
+	DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+SND_SOC_DAILINK_DEFS(max98357a,
+	DAILINK_COMP_ARRAY(COMP_EMPTY()),
+	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "HiFi")),
+	DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+SND_SOC_DAILINK_DEFS(rt5514,
+	DAILINK_COMP_ARRAY(COMP_EMPTY()),
+	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "rt5514-aif1")),
+	DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+SND_SOC_DAILINK_DEFS(rt5514_dsp,
+	DAILINK_COMP_ARRAY(COMP_EMPTY()),
+	DAILINK_COMP_ARRAY(COMP_DUMMY()),
+	DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static const struct snd_soc_dai_link rockchip_dais[] = {
+	[DAILINK_CDNDP] = {
+		.name = "DP",
+		.stream_name = "DP PCM",
+		.init = rockchip_sound_cdndp_init,
+		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+			SND_SOC_DAIFMT_CBS_CFS,
+		SND_SOC_DAILINK_REG(cdndp),
+	},
+	[DAILINK_DA7219] = {
+		.name = "DA7219",
+		.stream_name = "DA7219 PCM",
+		.init = rockchip_sound_da7219_init,
+		.ops = &rockchip_sound_da7219_ops,
+		/* set da7219 as slave */
+		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+			SND_SOC_DAIFMT_CBS_CFS,
+		SND_SOC_DAILINK_REG(da7219),
+	},
+	[DAILINK_DMIC] = {
+		.name = "DMIC",
+		.stream_name = "DMIC PCM",
+		.ops = &rockchip_sound_dmic_ops,
+		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+			SND_SOC_DAIFMT_CBS_CFS,
+		SND_SOC_DAILINK_REG(dmic),
+	},
+	[DAILINK_MAX98357A] = {
+		.name = "MAX98357A",
+		.stream_name = "MAX98357A PCM",
+		.ops = &rockchip_sound_max98357a_ops,
+		/* set max98357a as slave */
+		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+			SND_SOC_DAIFMT_CBS_CFS,
+		SND_SOC_DAILINK_REG(max98357a),
+	},
+	[DAILINK_RT5514] = {
+		.name = "RT5514",
+		.stream_name = "RT5514 PCM",
+		.ops = &rockchip_sound_rt5514_ops,
+		/* set rt5514 as slave */
+		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+			SND_SOC_DAIFMT_CBS_CFS,
+		SND_SOC_DAILINK_REG(rt5514),
+	},
+	/* RT5514 DSP for voice wakeup via spi bus */
+	[DAILINK_RT5514_DSP] = {
+		.name = "RT5514 DSP",
+		.stream_name = "Wake on Voice",
+		SND_SOC_DAILINK_REG(rt5514_dsp),
+	},
+};
+
+static const struct snd_soc_dapm_route rockchip_sound_cdndp_routes[] = {
+	/* Output */
+	{"HDMI", NULL, "TX"},
+};
+
+static const struct snd_soc_dapm_route rockchip_sound_da7219_routes[] = {
+	/* Output */
+	{"Headphones", NULL, "HPL"},
+	{"Headphones", NULL, "HPR"},
+
+	/* Input */
+	{"MIC", NULL, "Headset Mic"},
+};
+
+static const struct snd_soc_dapm_route rockchip_sound_dmic_routes[] = {
+	/* Input */
+	{"DMic", NULL, "Int Mic"},
+};
+
+static const struct snd_soc_dapm_route rockchip_sound_max98357a_routes[] = {
+	/* Output */
+	{"Speakers", NULL, "Speaker"},
+};
+
+static const struct snd_soc_dapm_route rockchip_sound_rt5514_routes[] = {
+	/* Input */
+	{"DMIC1L", NULL, "Int Mic"},
+	{"DMIC1R", NULL, "Int Mic"},
+};
+
+struct rockchip_sound_route {
+	const struct snd_soc_dapm_route *routes;
+	int num_routes;
+};
+
+static const struct rockchip_sound_route rockchip_routes[] = {
+	[DAILINK_CDNDP] = {
+		.routes = rockchip_sound_cdndp_routes,
+		.num_routes = ARRAY_SIZE(rockchip_sound_cdndp_routes),
+	},
+	[DAILINK_DA7219] = {
+		.routes = rockchip_sound_da7219_routes,
+		.num_routes = ARRAY_SIZE(rockchip_sound_da7219_routes),
+	},
+	[DAILINK_DMIC] = {
+		.routes = rockchip_sound_dmic_routes,
+		.num_routes = ARRAY_SIZE(rockchip_sound_dmic_routes),
+	},
+	[DAILINK_MAX98357A] = {
+		.routes = rockchip_sound_max98357a_routes,
+		.num_routes = ARRAY_SIZE(rockchip_sound_max98357a_routes),
+	},
+	[DAILINK_RT5514] = {
+		.routes = rockchip_sound_rt5514_routes,
+		.num_routes = ARRAY_SIZE(rockchip_sound_rt5514_routes),
+	},
+	[DAILINK_RT5514_DSP] = {},
+};
+
+struct dailink_match_data {
+	const char *compatible;
+	struct bus_type *bus_type;
+};
+
+static const struct dailink_match_data dailink_match[] = {
+	[DAILINK_CDNDP] = {
+		.compatible = "rockchip,rk3399-cdn-dp",
+	},
+	[DAILINK_DA7219] = {
+		.compatible = "dlg,da7219",
+	},
+	[DAILINK_DMIC] = {
+		.compatible = "dmic-codec",
+	},
+	[DAILINK_MAX98357A] = {
+		.compatible = "maxim,max98357a",
+	},
+	[DAILINK_RT5514] = {
+		.compatible = "realtek,rt5514",
+		.bus_type = &i2c_bus_type,
+	},
+	[DAILINK_RT5514_DSP] = {
+		.compatible = "realtek,rt5514",
+		.bus_type = &spi_bus_type,
+	},
+};
+
+static int rockchip_sound_codec_node_match(struct device_node *np_codec)
+{
+	struct device *dev;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(dailink_match); i++) {
+		if (!of_device_is_compatible(np_codec,
+					     dailink_match[i].compatible))
+			continue;
+
+		if (dailink_match[i].bus_type) {
+			dev = bus_find_device_by_of_node(dailink_match[i].bus_type,
+							 np_codec);
+			if (!dev)
+				continue;
+			put_device(dev);
+		}
+
+		return i;
+	}
+	return -1;
+}
+
+static int rockchip_sound_of_parse_dais(struct device *dev,
+					struct snd_soc_card *card)
+{
+	struct device_node *np_cpu, *np_cpu0, *np_cpu1;
+	struct device_node *np_codec;
+	struct snd_soc_dai_link *dai;
+	struct snd_soc_dapm_route *routes;
+	int i, index;
+	int num_routes;
+
+	card->dai_link = devm_kzalloc(dev, sizeof(rockchip_dais),
+				      GFP_KERNEL);
+	if (!card->dai_link)
+		return -ENOMEM;
+
+	num_routes = 0;
+	for (i = 0; i < ARRAY_SIZE(rockchip_routes); i++)
+		num_routes += rockchip_routes[i].num_routes;
+	routes = devm_kcalloc(dev, num_routes, sizeof(*routes),
+			      GFP_KERNEL);
+	if (!routes)
+		return -ENOMEM;
+	card->dapm_routes = routes;
+
+	np_cpu0 = of_parse_phandle(dev->of_node, "rockchip,cpu", 0);
+	np_cpu1 = of_parse_phandle(dev->of_node, "rockchip,cpu", 1);
+
+	card->num_dapm_routes = 0;
+	card->num_links = 0;
+	for (i = 0; i < ARRAY_SIZE(rockchip_dais); i++) {
+		np_codec = of_parse_phandle(dev->of_node,
+					    "rockchip,codec", i);
+		if (!np_codec)
+			break;
+
+		if (!of_device_is_available(np_codec))
+			continue;
+
+		index = rockchip_sound_codec_node_match(np_codec);
+		if (index < 0)
+			continue;
+
+		switch (index) {
+		case DAILINK_CDNDP:
+			np_cpu = np_cpu1;
+			break;
+		case DAILINK_RT5514_DSP:
+			np_cpu = np_codec;
+			break;
+		default:
+			np_cpu = np_cpu0;
+			break;
+		}
+
+		if (!np_cpu) {
+			dev_err(dev, "Missing 'rockchip,cpu' for %s\n",
+				rockchip_dais[index].name);
+			return -EINVAL;
+		}
+
+		dai = &card->dai_link[card->num_links++];
+		*dai = rockchip_dais[index];
+
+		if (!dai->codecs->name)
+			dai->codecs->of_node = np_codec;
+		dai->platforms->of_node = np_cpu;
+		dai->cpus->of_node = np_cpu;
+
+		if (card->num_dapm_routes + rockchip_routes[index].num_routes >
+		    num_routes) {
+			dev_err(dev, "Too many routes\n");
+			return -EINVAL;
+		}
+
+		memcpy(routes + card->num_dapm_routes,
+		       rockchip_routes[index].routes,
+		       rockchip_routes[index].num_routes * sizeof(*routes));
+		card->num_dapm_routes += rockchip_routes[index].num_routes;
+	}
+
+	return 0;
+}
+
+static int rockchip_sound_probe(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = &rockchip_sound_card;
+	int ret;
+
+	ret = rockchip_sound_of_parse_dais(&pdev->dev, card);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Failed to parse dais: %d\n", ret);
+		return ret;
+	}
+
+	/* Set DMIC wakeup delay */
+	ret = device_property_read_u32(&pdev->dev, "dmic-wakeup-delay-ms",
+					&dmic_wakeup_delay);
+	if (ret) {
+		dmic_wakeup_delay = 0;
+		dev_dbg(&pdev->dev,
+			"no optional property 'dmic-wakeup-delay-ms' found, default: no delay\n");
+	}
+
+	card->dev = &pdev->dev;
+	return devm_snd_soc_register_card(&pdev->dev, card);
+}
+
+static const struct of_device_id rockchip_sound_of_match[] = {
+	{ .compatible = "rockchip,rk3399-gru-sound", },
+	{},
+};
+
+static struct platform_driver rockchip_sound_driver = {
+	.probe = rockchip_sound_probe,
+	.driver = {
+		.name = DRV_NAME,
+		.of_match_table = rockchip_sound_of_match,
+#ifdef CONFIG_PM
+		.pm = &snd_soc_pm_ops,
+#endif
+	},
+};
+
+module_platform_driver(rockchip_sound_driver);
+
+MODULE_AUTHOR("Xing Zheng <zhengxing@rock-chips.com>");
+MODULE_DESCRIPTION("Rockchip ASoC Machine Driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" DRV_NAME);
+MODULE_DEVICE_TABLE(of, rockchip_sound_of_match);