Adding upstream version 5.10.209.upstream/5.10.209upstream

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

1 files changed, 998 insertions, 0 deletions

diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c
new file mode 100644
index 000000000..9e70c193d
--- /dev/null
+++ b/sound/soc/qcom/lpass-cpu.c
@@ -0,0 +1,998 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved.
+ *
+ * lpass-cpu.c -- ALSA SoC CPU DAI driver for QTi LPASS
+ */
+
+#include <linux/clk.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <linux/regmap.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+#include "lpass-lpaif-reg.h"
+#include "lpass.h"
+
+#define LPASS_CPU_MAX_MI2S_LINES	4
+#define LPASS_CPU_I2S_SD0_MASK		BIT(0)
+#define LPASS_CPU_I2S_SD1_MASK		BIT(1)
+#define LPASS_CPU_I2S_SD2_MASK		BIT(2)
+#define LPASS_CPU_I2S_SD3_MASK		BIT(3)
+#define LPASS_CPU_I2S_SD0_1_MASK	GENMASK(1, 0)
+#define LPASS_CPU_I2S_SD2_3_MASK	GENMASK(3, 2)
+#define LPASS_CPU_I2S_SD0_1_2_MASK	GENMASK(2, 0)
+#define LPASS_CPU_I2S_SD0_1_2_3_MASK	GENMASK(3, 0)
+
+static int lpass_cpu_init_i2sctl_bitfields(struct device *dev,
+			struct lpaif_i2sctl *i2sctl, struct regmap *map)
+{
+	struct lpass_data *drvdata = dev_get_drvdata(dev);
+	struct lpass_variant *v = drvdata->variant;
+
+	i2sctl->loopback = devm_regmap_field_alloc(dev, map, v->loopback);
+	i2sctl->spken = devm_regmap_field_alloc(dev, map, v->spken);
+	i2sctl->spkmode = devm_regmap_field_alloc(dev, map, v->spkmode);
+	i2sctl->spkmono = devm_regmap_field_alloc(dev, map, v->spkmono);
+	i2sctl->micen = devm_regmap_field_alloc(dev, map, v->micen);
+	i2sctl->micmode = devm_regmap_field_alloc(dev, map, v->micmode);
+	i2sctl->micmono = devm_regmap_field_alloc(dev, map, v->micmono);
+	i2sctl->wssrc = devm_regmap_field_alloc(dev, map, v->wssrc);
+	i2sctl->bitwidth = devm_regmap_field_alloc(dev, map, v->bitwidth);
+
+	if (IS_ERR(i2sctl->loopback) || IS_ERR(i2sctl->spken) ||
+	    IS_ERR(i2sctl->spkmode) || IS_ERR(i2sctl->spkmono) ||
+	    IS_ERR(i2sctl->micen) || IS_ERR(i2sctl->micmode) ||
+	    IS_ERR(i2sctl->micmono) || IS_ERR(i2sctl->wssrc) ||
+	    IS_ERR(i2sctl->bitwidth))
+		return -EINVAL;
+
+	return 0;
+}
+
+static int lpass_cpu_daiops_set_sysclk(struct snd_soc_dai *dai, int clk_id,
+		unsigned int freq, int dir)
+{
+	struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
+	int ret;
+
+	ret = clk_set_rate(drvdata->mi2s_osr_clk[dai->driver->id], freq);
+	if (ret)
+		dev_err(dai->dev, "error setting mi2s osrclk to %u: %d\n",
+			freq, ret);
+
+	return ret;
+}
+
+static int lpass_cpu_daiops_startup(struct snd_pcm_substream *substream,
+		struct snd_soc_dai *dai)
+{
+	struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
+	int ret;
+
+	ret = clk_prepare_enable(drvdata->mi2s_osr_clk[dai->driver->id]);
+	if (ret) {
+		dev_err(dai->dev, "error in enabling mi2s osr clk: %d\n", ret);
+		return ret;
+	}
+	ret = clk_prepare(drvdata->mi2s_bit_clk[dai->driver->id]);
+	if (ret) {
+		dev_err(dai->dev, "error in enabling mi2s bit clk: %d\n", ret);
+		clk_disable_unprepare(drvdata->mi2s_osr_clk[dai->driver->id]);
+		return ret;
+	}
+	return 0;
+}
+
+static void lpass_cpu_daiops_shutdown(struct snd_pcm_substream *substream,
+		struct snd_soc_dai *dai)
+{
+	struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
+	struct lpaif_i2sctl *i2sctl = drvdata->i2sctl;
+	unsigned int id = dai->driver->id;
+
+	clk_disable_unprepare(drvdata->mi2s_osr_clk[dai->driver->id]);
+	/*
+	 * Ensure LRCLK is disabled even in device node validation.
+	 * Will not impact if disabled in lpass_cpu_daiops_trigger()
+	 * suspend.
+	 */
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		regmap_fields_write(i2sctl->spken, id, LPAIF_I2SCTL_SPKEN_DISABLE);
+	else
+		regmap_fields_write(i2sctl->micen, id, LPAIF_I2SCTL_MICEN_DISABLE);
+
+	/*
+	 * BCLK may not be enabled if lpass_cpu_daiops_prepare is called before
+	 * lpass_cpu_daiops_shutdown. It's paired with the clk_enable in
+	 * lpass_cpu_daiops_prepare.
+	 */
+	if (drvdata->mi2s_was_prepared[dai->driver->id]) {
+		drvdata->mi2s_was_prepared[dai->driver->id] = false;
+		clk_disable(drvdata->mi2s_bit_clk[dai->driver->id]);
+	}
+
+	clk_unprepare(drvdata->mi2s_bit_clk[dai->driver->id]);
+}
+
+static int lpass_cpu_daiops_hw_params(struct snd_pcm_substream *substream,
+		struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+	struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
+	struct lpaif_i2sctl *i2sctl = drvdata->i2sctl;
+	unsigned int id = dai->driver->id;
+	snd_pcm_format_t format = params_format(params);
+	unsigned int channels = params_channels(params);
+	unsigned int rate = params_rate(params);
+	unsigned int mode;
+	unsigned int regval;
+	int bitwidth, ret;
+
+	bitwidth = snd_pcm_format_width(format);
+	if (bitwidth < 0) {
+		dev_err(dai->dev, "invalid bit width given: %d\n", bitwidth);
+		return bitwidth;
+	}
+
+	ret = regmap_fields_write(i2sctl->loopback, id,
+				 LPAIF_I2SCTL_LOOPBACK_DISABLE);
+	if (ret) {
+		dev_err(dai->dev, "error updating loopback field: %d\n", ret);
+		return ret;
+	}
+
+	ret = regmap_fields_write(i2sctl->wssrc, id,
+				 LPAIF_I2SCTL_WSSRC_INTERNAL);
+	if (ret) {
+		dev_err(dai->dev, "error updating wssrc field: %d\n", ret);
+		return ret;
+	}
+
+	switch (bitwidth) {
+	case 16:
+		regval = LPAIF_I2SCTL_BITWIDTH_16;
+		break;
+	case 24:
+		regval = LPAIF_I2SCTL_BITWIDTH_24;
+		break;
+	case 32:
+		regval = LPAIF_I2SCTL_BITWIDTH_32;
+		break;
+	default:
+		dev_err(dai->dev, "invalid bitwidth given: %d\n", bitwidth);
+		return -EINVAL;
+	}
+
+	ret = regmap_fields_write(i2sctl->bitwidth, id, regval);
+	if (ret) {
+		dev_err(dai->dev, "error updating bitwidth field: %d\n", ret);
+		return ret;
+	}
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		mode = drvdata->mi2s_playback_sd_mode[id];
+	else
+		mode = drvdata->mi2s_capture_sd_mode[id];
+
+	if (!mode) {
+		dev_err(dai->dev, "no line is assigned\n");
+		return -EINVAL;
+	}
+
+	switch (channels) {
+	case 1:
+	case 2:
+		switch (mode) {
+		case LPAIF_I2SCTL_MODE_QUAD01:
+		case LPAIF_I2SCTL_MODE_6CH:
+		case LPAIF_I2SCTL_MODE_8CH:
+			mode = LPAIF_I2SCTL_MODE_SD0;
+			break;
+		case LPAIF_I2SCTL_MODE_QUAD23:
+			mode = LPAIF_I2SCTL_MODE_SD2;
+			break;
+		}
+
+		break;
+	case 4:
+		if (mode < LPAIF_I2SCTL_MODE_QUAD01) {
+			dev_err(dai->dev, "cannot configure 4 channels with mode %d\n",
+				mode);
+			return -EINVAL;
+		}
+
+		switch (mode) {
+		case LPAIF_I2SCTL_MODE_6CH:
+		case LPAIF_I2SCTL_MODE_8CH:
+			mode = LPAIF_I2SCTL_MODE_QUAD01;
+			break;
+		}
+		break;
+	case 6:
+		if (mode < LPAIF_I2SCTL_MODE_6CH) {
+			dev_err(dai->dev, "cannot configure 6 channels with mode %d\n",
+				mode);
+			return -EINVAL;
+		}
+
+		switch (mode) {
+		case LPAIF_I2SCTL_MODE_8CH:
+			mode = LPAIF_I2SCTL_MODE_6CH;
+			break;
+		}
+		break;
+	case 8:
+		if (mode < LPAIF_I2SCTL_MODE_8CH) {
+			dev_err(dai->dev, "cannot configure 8 channels with mode %d\n",
+				mode);
+			return -EINVAL;
+		}
+		break;
+	default:
+		dev_err(dai->dev, "invalid channels given: %u\n", channels);
+		return -EINVAL;
+	}
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		ret = regmap_fields_write(i2sctl->spkmode, id,
+					 LPAIF_I2SCTL_SPKMODE(mode));
+		if (ret) {
+			dev_err(dai->dev, "error writing to i2sctl spkr mode: %d\n",
+				ret);
+			return ret;
+		}
+		if (channels >= 2)
+			ret = regmap_fields_write(i2sctl->spkmono, id,
+						 LPAIF_I2SCTL_SPKMONO_STEREO);
+		else
+			ret = regmap_fields_write(i2sctl->spkmono, id,
+						 LPAIF_I2SCTL_SPKMONO_MONO);
+	} else {
+		ret = regmap_fields_write(i2sctl->micmode, id,
+					 LPAIF_I2SCTL_MICMODE(mode));
+		if (ret) {
+			dev_err(dai->dev, "error writing to i2sctl mic mode: %d\n",
+				ret);
+			return ret;
+		}
+		if (channels >= 2)
+			ret = regmap_fields_write(i2sctl->micmono, id,
+						 LPAIF_I2SCTL_MICMONO_STEREO);
+		else
+			ret = regmap_fields_write(i2sctl->micmono, id,
+						 LPAIF_I2SCTL_MICMONO_MONO);
+	}
+
+	if (ret) {
+		dev_err(dai->dev, "error writing to i2sctl channels mode: %d\n",
+			ret);
+		return ret;
+	}
+
+	ret = clk_set_rate(drvdata->mi2s_bit_clk[id],
+			   rate * bitwidth * 2);
+	if (ret) {
+		dev_err(dai->dev, "error setting mi2s bitclk to %u: %d\n",
+			rate * bitwidth * 2, ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int lpass_cpu_daiops_trigger(struct snd_pcm_substream *substream,
+		int cmd, struct snd_soc_dai *dai)
+{
+	struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
+	struct lpaif_i2sctl *i2sctl = drvdata->i2sctl;
+	unsigned int id = dai->driver->id;
+	int ret = -EINVAL;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		/*
+		 * Ensure lpass BCLK/LRCLK is enabled during
+		 * device resume as lpass_cpu_daiops_prepare() is not called
+		 * after the device resumes. We don't check mi2s_was_prepared before
+		 * enable/disable BCLK in trigger events because:
+		 *  1. These trigger events are paired, so the BCLK
+		 *     enable_count is balanced.
+		 *  2. the BCLK can be shared (ex: headset and headset mic),
+		 *     we need to increase the enable_count so that we don't
+		 *     turn off the shared BCLK while other devices are using
+		 *     it.
+		 */
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+			ret = regmap_fields_write(i2sctl->spken, id,
+						 LPAIF_I2SCTL_SPKEN_ENABLE);
+		} else  {
+			ret = regmap_fields_write(i2sctl->micen, id,
+						 LPAIF_I2SCTL_MICEN_ENABLE);
+		}
+		if (ret)
+			dev_err(dai->dev, "error writing to i2sctl reg: %d\n",
+				ret);
+
+		ret = clk_enable(drvdata->mi2s_bit_clk[id]);
+		if (ret) {
+			dev_err(dai->dev, "error in enabling mi2s bit clk: %d\n", ret);
+			clk_disable(drvdata->mi2s_osr_clk[id]);
+			return ret;
+		}
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		/*
+		 * To ensure lpass BCLK/LRCLK is disabled during
+		 * device suspend.
+		 */
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+			ret = regmap_fields_write(i2sctl->spken, id,
+						 LPAIF_I2SCTL_SPKEN_DISABLE);
+		} else  {
+			ret = regmap_fields_write(i2sctl->micen, id,
+						 LPAIF_I2SCTL_MICEN_DISABLE);
+		}
+		if (ret)
+			dev_err(dai->dev, "error writing to i2sctl reg: %d\n",
+				ret);
+
+		clk_disable(drvdata->mi2s_bit_clk[dai->driver->id]);
+
+		break;
+	}
+
+	return ret;
+}
+
+static int lpass_cpu_daiops_prepare(struct snd_pcm_substream *substream,
+		struct snd_soc_dai *dai)
+{
+	struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
+	struct lpaif_i2sctl *i2sctl = drvdata->i2sctl;
+	unsigned int id = dai->driver->id;
+	int ret;
+
+	/*
+	 * Ensure lpass BCLK/LRCLK is enabled bit before playback/capture
+	 * data flow starts. This allows other codec to have some delay before
+	 * the data flow.
+	 * (ex: to drop start up pop noise before capture starts).
+	 */
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		ret = regmap_fields_write(i2sctl->spken, id, LPAIF_I2SCTL_SPKEN_ENABLE);
+	else
+		ret = regmap_fields_write(i2sctl->micen, id, LPAIF_I2SCTL_MICEN_ENABLE);
+
+	if (ret) {
+		dev_err(dai->dev, "error writing to i2sctl reg: %d\n", ret);
+		return ret;
+	}
+
+	/*
+	 * Check mi2s_was_prepared before enabling BCLK as lpass_cpu_daiops_prepare can
+	 * be called multiple times. It's paired with the clk_disable in
+	 * lpass_cpu_daiops_shutdown.
+	 */
+	if (!drvdata->mi2s_was_prepared[dai->driver->id]) {
+		ret = clk_enable(drvdata->mi2s_bit_clk[id]);
+		if (ret) {
+			dev_err(dai->dev, "error in enabling mi2s bit clk: %d\n", ret);
+			return ret;
+		}
+		drvdata->mi2s_was_prepared[dai->driver->id] = true;
+	}
+	return 0;
+}
+
+const struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops = {
+	.set_sysclk	= lpass_cpu_daiops_set_sysclk,
+	.startup	= lpass_cpu_daiops_startup,
+	.shutdown	= lpass_cpu_daiops_shutdown,
+	.hw_params	= lpass_cpu_daiops_hw_params,
+	.trigger	= lpass_cpu_daiops_trigger,
+	.prepare	= lpass_cpu_daiops_prepare,
+};
+EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_dai_ops);
+
+int asoc_qcom_lpass_cpu_dai_probe(struct snd_soc_dai *dai)
+{
+	struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
+	int ret;
+
+	/* ensure audio hardware is disabled */
+	ret = regmap_write(drvdata->lpaif_map,
+			LPAIF_I2SCTL_REG(drvdata->variant, dai->driver->id), 0);
+	if (ret)
+		dev_err(dai->dev, "error writing to i2sctl reg: %d\n", ret);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_dai_probe);
+
+static int asoc_qcom_of_xlate_dai_name(struct snd_soc_component *component,
+				   struct of_phandle_args *args,
+				   const char **dai_name)
+{
+	struct lpass_data *drvdata = snd_soc_component_get_drvdata(component);
+	struct lpass_variant *variant = drvdata->variant;
+	int id = args->args[0];
+	int ret = -EINVAL;
+	int i;
+
+	for (i = 0; i  < variant->num_dai; i++) {
+		if (variant->dai_driver[i].id == id) {
+			*dai_name = variant->dai_driver[i].name;
+			ret = 0;
+			break;
+		}
+	}
+
+	return ret;
+}
+
+static const struct snd_soc_component_driver lpass_cpu_comp_driver = {
+	.name = "lpass-cpu",
+	.of_xlate_dai_name = asoc_qcom_of_xlate_dai_name,
+};
+
+static bool lpass_cpu_regmap_writeable(struct device *dev, unsigned int reg)
+{
+	struct lpass_data *drvdata = dev_get_drvdata(dev);
+	struct lpass_variant *v = drvdata->variant;
+	int i;
+
+	for (i = 0; i < v->i2s_ports; ++i)
+		if (reg == LPAIF_I2SCTL_REG(v, i))
+			return true;
+
+	for (i = 0; i < v->irq_ports; ++i) {
+		if (reg == LPAIF_IRQEN_REG(v, i))
+			return true;
+		if (reg == LPAIF_IRQCLEAR_REG(v, i))
+			return true;
+	}
+
+	for (i = 0; i < v->rdma_channels; ++i) {
+		if (reg == LPAIF_RDMACTL_REG(v, i))
+			return true;
+		if (reg == LPAIF_RDMABASE_REG(v, i))
+			return true;
+		if (reg == LPAIF_RDMABUFF_REG(v, i))
+			return true;
+		if (reg == LPAIF_RDMAPER_REG(v, i))
+			return true;
+	}
+
+	for (i = 0; i < v->wrdma_channels; ++i) {
+		if (reg == LPAIF_WRDMACTL_REG(v, i + v->wrdma_channel_start))
+			return true;
+		if (reg == LPAIF_WRDMABASE_REG(v, i + v->wrdma_channel_start))
+			return true;
+		if (reg == LPAIF_WRDMABUFF_REG(v, i + v->wrdma_channel_start))
+			return true;
+		if (reg == LPAIF_WRDMAPER_REG(v, i + v->wrdma_channel_start))
+			return true;
+	}
+
+	return false;
+}
+
+static bool lpass_cpu_regmap_readable(struct device *dev, unsigned int reg)
+{
+	struct lpass_data *drvdata = dev_get_drvdata(dev);
+	struct lpass_variant *v = drvdata->variant;
+	int i;
+
+	for (i = 0; i < v->i2s_ports; ++i)
+		if (reg == LPAIF_I2SCTL_REG(v, i))
+			return true;
+
+	for (i = 0; i < v->irq_ports; ++i) {
+		if (reg == LPAIF_IRQEN_REG(v, i))
+			return true;
+		if (reg == LPAIF_IRQSTAT_REG(v, i))
+			return true;
+	}
+
+	for (i = 0; i < v->rdma_channels; ++i) {
+		if (reg == LPAIF_RDMACTL_REG(v, i))
+			return true;
+		if (reg == LPAIF_RDMABASE_REG(v, i))
+			return true;
+		if (reg == LPAIF_RDMABUFF_REG(v, i))
+			return true;
+		if (reg == LPAIF_RDMACURR_REG(v, i))
+			return true;
+		if (reg == LPAIF_RDMAPER_REG(v, i))
+			return true;
+	}
+
+	for (i = 0; i < v->wrdma_channels; ++i) {
+		if (reg == LPAIF_WRDMACTL_REG(v, i + v->wrdma_channel_start))
+			return true;
+		if (reg == LPAIF_WRDMABASE_REG(v, i + v->wrdma_channel_start))
+			return true;
+		if (reg == LPAIF_WRDMABUFF_REG(v, i + v->wrdma_channel_start))
+			return true;
+		if (reg == LPAIF_WRDMACURR_REG(v, i + v->wrdma_channel_start))
+			return true;
+		if (reg == LPAIF_WRDMAPER_REG(v, i + v->wrdma_channel_start))
+			return true;
+	}
+
+	return false;
+}
+
+static bool lpass_cpu_regmap_volatile(struct device *dev, unsigned int reg)
+{
+	struct lpass_data *drvdata = dev_get_drvdata(dev);
+	struct lpass_variant *v = drvdata->variant;
+	int i;
+
+	for (i = 0; i < v->irq_ports; ++i)
+		if (reg == LPAIF_IRQSTAT_REG(v, i))
+			return true;
+
+	for (i = 0; i < v->rdma_channels; ++i)
+		if (reg == LPAIF_RDMACURR_REG(v, i))
+			return true;
+
+	for (i = 0; i < v->wrdma_channels; ++i)
+		if (reg == LPAIF_WRDMACURR_REG(v, i + v->wrdma_channel_start))
+			return true;
+
+	return false;
+}
+
+static struct regmap_config lpass_cpu_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+	.writeable_reg = lpass_cpu_regmap_writeable,
+	.readable_reg = lpass_cpu_regmap_readable,
+	.volatile_reg = lpass_cpu_regmap_volatile,
+	.cache_type = REGCACHE_FLAT,
+};
+
+static int lpass_hdmi_init_bitfields(struct device *dev, struct regmap *map)
+{
+	struct lpass_data *drvdata = dev_get_drvdata(dev);
+	struct lpass_variant *v = drvdata->variant;
+	unsigned int i;
+	struct lpass_hdmi_tx_ctl *tx_ctl;
+	struct regmap_field *legacy_en;
+	struct lpass_vbit_ctrl *vbit_ctl;
+	struct regmap_field *tx_parity;
+	struct lpass_dp_metadata_ctl *meta_ctl;
+	struct lpass_sstream_ctl *sstream_ctl;
+	struct regmap_field *ch_msb;
+	struct regmap_field *ch_lsb;
+	struct lpass_hdmitx_dmactl *tx_dmactl;
+	int rval;
+
+	tx_ctl = devm_kzalloc(dev, sizeof(*tx_ctl), GFP_KERNEL);
+	if (!tx_ctl)
+		return -ENOMEM;
+
+	QCOM_REGMAP_FIELD_ALLOC(dev, map, v->soft_reset, tx_ctl->soft_reset);
+	QCOM_REGMAP_FIELD_ALLOC(dev, map, v->force_reset, tx_ctl->force_reset);
+	drvdata->tx_ctl = tx_ctl;
+
+	QCOM_REGMAP_FIELD_ALLOC(dev, map, v->legacy_en, legacy_en);
+	drvdata->hdmitx_legacy_en = legacy_en;
+
+	vbit_ctl = devm_kzalloc(dev, sizeof(*vbit_ctl), GFP_KERNEL);
+	if (!vbit_ctl)
+		return -ENOMEM;
+
+	QCOM_REGMAP_FIELD_ALLOC(dev, map, v->replace_vbit, vbit_ctl->replace_vbit);
+	QCOM_REGMAP_FIELD_ALLOC(dev, map, v->vbit_stream, vbit_ctl->vbit_stream);
+	drvdata->vbit_ctl = vbit_ctl;
+
+
+	QCOM_REGMAP_FIELD_ALLOC(dev, map, v->calc_en, tx_parity);
+	drvdata->hdmitx_parity_calc_en = tx_parity;
+
+	meta_ctl = devm_kzalloc(dev, sizeof(*meta_ctl), GFP_KERNEL);
+	if (!meta_ctl)
+		return -ENOMEM;
+
+	rval = devm_regmap_field_bulk_alloc(dev, map, &meta_ctl->mute, &v->mute, 7);
+	if (rval)
+		return rval;
+	drvdata->meta_ctl = meta_ctl;
+
+	sstream_ctl = devm_kzalloc(dev, sizeof(*sstream_ctl), GFP_KERNEL);
+	if (!sstream_ctl)
+		return -ENOMEM;
+
+	rval = devm_regmap_field_bulk_alloc(dev, map, &sstream_ctl->sstream_en, &v->sstream_en, 9);
+	if (rval)
+		return rval;
+
+	drvdata->sstream_ctl = sstream_ctl;
+
+	for (i = 0; i < LPASS_MAX_HDMI_DMA_CHANNELS; i++) {
+		QCOM_REGMAP_FIELD_ALLOC(dev, map, v->msb_bits, ch_msb);
+		drvdata->hdmitx_ch_msb[i] = ch_msb;
+
+		QCOM_REGMAP_FIELD_ALLOC(dev, map, v->lsb_bits, ch_lsb);
+		drvdata->hdmitx_ch_lsb[i] = ch_lsb;
+
+		tx_dmactl = devm_kzalloc(dev, sizeof(*tx_dmactl), GFP_KERNEL);
+		if (!tx_dmactl)
+			return -ENOMEM;
+
+		QCOM_REGMAP_FIELD_ALLOC(dev, map, v->use_hw_chs, tx_dmactl->use_hw_chs);
+		QCOM_REGMAP_FIELD_ALLOC(dev, map, v->use_hw_usr, tx_dmactl->use_hw_usr);
+		QCOM_REGMAP_FIELD_ALLOC(dev, map, v->hw_chs_sel, tx_dmactl->hw_chs_sel);
+		QCOM_REGMAP_FIELD_ALLOC(dev, map, v->hw_usr_sel, tx_dmactl->hw_usr_sel);
+		drvdata->hdmi_tx_dmactl[i] = tx_dmactl;
+	}
+	return 0;
+}
+
+static bool lpass_hdmi_regmap_writeable(struct device *dev, unsigned int reg)
+{
+	struct lpass_data *drvdata = dev_get_drvdata(dev);
+	struct lpass_variant *v = drvdata->variant;
+	int i;
+
+	if (reg == LPASS_HDMI_TX_CTL_ADDR(v))
+		return true;
+	if (reg == LPASS_HDMI_TX_LEGACY_ADDR(v))
+		return true;
+	if (reg == LPASS_HDMI_TX_VBIT_CTL_ADDR(v))
+		return true;
+	if (reg == LPASS_HDMI_TX_PARITY_ADDR(v))
+		return true;
+	if (reg == LPASS_HDMI_TX_DP_ADDR(v))
+		return true;
+	if (reg == LPASS_HDMI_TX_SSTREAM_ADDR(v))
+		return true;
+	if (reg == LPASS_HDMITX_APP_IRQEN_REG(v))
+		return true;
+	if (reg == LPASS_HDMITX_APP_IRQCLEAR_REG(v))
+		return true;
+
+	for (i = 0; i < v->hdmi_rdma_channels; i++) {
+		if (reg == LPASS_HDMI_TX_CH_LSB_ADDR(v, i))
+			return true;
+		if (reg == LPASS_HDMI_TX_CH_MSB_ADDR(v, i))
+			return true;
+		if (reg == LPASS_HDMI_TX_DMA_ADDR(v, i))
+			return true;
+	}
+
+	for (i = 0; i < v->hdmi_rdma_channels; ++i) {
+		if (reg == LPAIF_HDMI_RDMACTL_REG(v, i))
+			return true;
+		if (reg == LPAIF_HDMI_RDMABASE_REG(v, i))
+			return true;
+		if (reg == LPAIF_HDMI_RDMABUFF_REG(v, i))
+			return true;
+		if (reg == LPAIF_HDMI_RDMAPER_REG(v, i))
+			return true;
+	}
+	return false;
+}
+
+static bool lpass_hdmi_regmap_readable(struct device *dev, unsigned int reg)
+{
+	struct lpass_data *drvdata = dev_get_drvdata(dev);
+	struct lpass_variant *v = drvdata->variant;
+	int i;
+
+	if (reg == LPASS_HDMI_TX_CTL_ADDR(v))
+		return true;
+	if (reg == LPASS_HDMI_TX_LEGACY_ADDR(v))
+		return true;
+	if (reg == LPASS_HDMI_TX_VBIT_CTL_ADDR(v))
+		return true;
+
+	for (i = 0; i < v->hdmi_rdma_channels; i++) {
+		if (reg == LPASS_HDMI_TX_CH_LSB_ADDR(v, i))
+			return true;
+		if (reg == LPASS_HDMI_TX_CH_MSB_ADDR(v, i))
+			return true;
+		if (reg == LPASS_HDMI_TX_DMA_ADDR(v, i))
+			return true;
+	}
+
+	if (reg == LPASS_HDMI_TX_PARITY_ADDR(v))
+		return true;
+	if (reg == LPASS_HDMI_TX_DP_ADDR(v))
+		return true;
+	if (reg == LPASS_HDMI_TX_SSTREAM_ADDR(v))
+		return true;
+	if (reg == LPASS_HDMITX_APP_IRQEN_REG(v))
+		return true;
+	if (reg == LPASS_HDMITX_APP_IRQSTAT_REG(v))
+		return true;
+
+	for (i = 0; i < v->hdmi_rdma_channels; ++i) {
+		if (reg == LPAIF_HDMI_RDMACTL_REG(v, i))
+			return true;
+		if (reg == LPAIF_HDMI_RDMABASE_REG(v, i))
+			return true;
+		if (reg == LPAIF_HDMI_RDMABUFF_REG(v, i))
+			return true;
+		if (reg == LPAIF_HDMI_RDMAPER_REG(v, i))
+			return true;
+		if (reg == LPAIF_HDMI_RDMACURR_REG(v, i))
+			return true;
+	}
+
+	return false;
+}
+
+static bool lpass_hdmi_regmap_volatile(struct device *dev, unsigned int reg)
+{
+	struct lpass_data *drvdata = dev_get_drvdata(dev);
+	struct lpass_variant *v = drvdata->variant;
+	int i;
+
+	if (reg == LPASS_HDMITX_APP_IRQSTAT_REG(v))
+		return true;
+	if (reg == LPASS_HDMI_TX_LEGACY_ADDR(v))
+		return true;
+	if (reg == LPASS_HDMI_TX_VBIT_CTL_ADDR(v))
+		return true;
+	if (reg == LPASS_HDMI_TX_PARITY_ADDR(v))
+		return true;
+
+	for (i = 0; i < v->hdmi_rdma_channels; ++i) {
+		if (reg == LPAIF_HDMI_RDMACURR_REG(v, i))
+			return true;
+		if (reg == LPASS_HDMI_TX_DMA_ADDR(v, i))
+			return true;
+		if (reg == LPASS_HDMI_TX_CH_LSB_ADDR(v, i))
+			return true;
+		if (reg == LPASS_HDMI_TX_CH_MSB_ADDR(v, i))
+			return true;
+	}
+	return false;
+}
+
+struct regmap_config lpass_hdmi_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+	.writeable_reg = lpass_hdmi_regmap_writeable,
+	.readable_reg = lpass_hdmi_regmap_readable,
+	.volatile_reg = lpass_hdmi_regmap_volatile,
+	.cache_type = REGCACHE_FLAT,
+};
+
+static unsigned int of_lpass_cpu_parse_sd_lines(struct device *dev,
+						struct device_node *node,
+						const char *name)
+{
+	unsigned int lines[LPASS_CPU_MAX_MI2S_LINES];
+	unsigned int sd_line_mask = 0;
+	int num_lines, i;
+
+	num_lines = of_property_read_variable_u32_array(node, name, lines, 0,
+							LPASS_CPU_MAX_MI2S_LINES);
+	if (num_lines < 0)
+		return LPAIF_I2SCTL_MODE_NONE;
+
+	for (i = 0; i < num_lines; i++)
+		sd_line_mask |= BIT(lines[i]);
+
+	switch (sd_line_mask) {
+	case LPASS_CPU_I2S_SD0_MASK:
+		return LPAIF_I2SCTL_MODE_SD0;
+	case LPASS_CPU_I2S_SD1_MASK:
+		return LPAIF_I2SCTL_MODE_SD1;
+	case LPASS_CPU_I2S_SD2_MASK:
+		return LPAIF_I2SCTL_MODE_SD2;
+	case LPASS_CPU_I2S_SD3_MASK:
+		return LPAIF_I2SCTL_MODE_SD3;
+	case LPASS_CPU_I2S_SD0_1_MASK:
+		return LPAIF_I2SCTL_MODE_QUAD01;
+	case LPASS_CPU_I2S_SD2_3_MASK:
+		return LPAIF_I2SCTL_MODE_QUAD23;
+	case LPASS_CPU_I2S_SD0_1_2_MASK:
+		return LPAIF_I2SCTL_MODE_6CH;
+	case LPASS_CPU_I2S_SD0_1_2_3_MASK:
+		return LPAIF_I2SCTL_MODE_8CH;
+	default:
+		dev_err(dev, "Unsupported SD line mask: %#x\n", sd_line_mask);
+		return LPAIF_I2SCTL_MODE_NONE;
+	}
+}
+
+static void of_lpass_cpu_parse_dai_data(struct device *dev,
+					struct lpass_data *data)
+{
+	struct device_node *node;
+	int ret, i, id;
+
+	/* Allow all channels by default for backwards compatibility */
+	for (i = 0; i < data->variant->num_dai; i++) {
+		id = data->variant->dai_driver[i].id;
+		data->mi2s_playback_sd_mode[id] = LPAIF_I2SCTL_MODE_8CH;
+		data->mi2s_capture_sd_mode[id] = LPAIF_I2SCTL_MODE_8CH;
+	}
+
+	for_each_child_of_node(dev->of_node, node) {
+		ret = of_property_read_u32(node, "reg", &id);
+		if (ret || id < 0) {
+			dev_err(dev, "valid dai id not found: %d\n", ret);
+			continue;
+		}
+		if (id == LPASS_DP_RX) {
+			data->hdmi_port_enable = 1;
+		} else {
+			data->mi2s_playback_sd_mode[id] =
+				of_lpass_cpu_parse_sd_lines(dev, node,
+							    "qcom,playback-sd-lines");
+			data->mi2s_capture_sd_mode[id] =
+				of_lpass_cpu_parse_sd_lines(dev, node,
+						    "qcom,capture-sd-lines");
+		}
+	}
+}
+
+int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev)
+{
+	struct lpass_data *drvdata;
+	struct device_node *dsp_of_node;
+	struct resource *res;
+	struct lpass_variant *variant;
+	struct device *dev = &pdev->dev;
+	const struct of_device_id *match;
+	int ret, i, dai_id;
+
+	dsp_of_node = of_parse_phandle(pdev->dev.of_node, "qcom,adsp", 0);
+	if (dsp_of_node) {
+		dev_err(dev, "DSP exists and holds audio resources\n");
+		of_node_put(dsp_of_node);
+		return -EBUSY;
+	}
+
+	drvdata = devm_kzalloc(dev, sizeof(struct lpass_data), GFP_KERNEL);
+	if (!drvdata)
+		return -ENOMEM;
+	platform_set_drvdata(pdev, drvdata);
+
+	match = of_match_device(dev->driver->of_match_table, dev);
+	if (!match || !match->data)
+		return -EINVAL;
+
+	drvdata->variant = (struct lpass_variant *)match->data;
+	variant = drvdata->variant;
+
+	of_lpass_cpu_parse_dai_data(dev, drvdata);
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "lpass-lpaif");
+
+	drvdata->lpaif = devm_ioremap_resource(dev, res);
+	if (IS_ERR((void const __force *)drvdata->lpaif)) {
+		dev_err(dev, "error mapping reg resource: %ld\n",
+				PTR_ERR((void const __force *)drvdata->lpaif));
+		return PTR_ERR((void const __force *)drvdata->lpaif);
+	}
+
+	lpass_cpu_regmap_config.max_register = LPAIF_WRDMAPER_REG(variant,
+						variant->wrdma_channels +
+						variant->wrdma_channel_start);
+
+	drvdata->lpaif_map = devm_regmap_init_mmio(dev, drvdata->lpaif,
+			&lpass_cpu_regmap_config);
+	if (IS_ERR(drvdata->lpaif_map)) {
+		dev_err(dev, "error initializing regmap: %ld\n",
+			PTR_ERR(drvdata->lpaif_map));
+		return PTR_ERR(drvdata->lpaif_map);
+	}
+
+	if (drvdata->hdmi_port_enable) {
+		res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "lpass-hdmiif");
+
+		drvdata->hdmiif = devm_ioremap_resource(dev, res);
+		if (IS_ERR((void const __force *)drvdata->hdmiif)) {
+			dev_err(dev, "error mapping reg resource: %ld\n",
+					PTR_ERR((void const __force *)drvdata->hdmiif));
+			return PTR_ERR((void const __force *)drvdata->hdmiif);
+		}
+
+		lpass_hdmi_regmap_config.max_register = LPAIF_HDMI_RDMAPER_REG(variant,
+					variant->hdmi_rdma_channels - 1);
+		drvdata->hdmiif_map = devm_regmap_init_mmio(dev, drvdata->hdmiif,
+					&lpass_hdmi_regmap_config);
+		if (IS_ERR(drvdata->hdmiif_map)) {
+			dev_err(dev, "error initializing regmap: %ld\n",
+			PTR_ERR(drvdata->hdmiif_map));
+			return PTR_ERR(drvdata->hdmiif_map);
+		}
+	}
+
+	if (variant->init) {
+		ret = variant->init(pdev);
+		if (ret) {
+			dev_err(dev, "error initializing variant: %d\n", ret);
+			return ret;
+		}
+	}
+
+	for (i = 0; i < variant->num_dai; i++) {
+		dai_id = variant->dai_driver[i].id;
+		if (dai_id == LPASS_DP_RX)
+			continue;
+
+		drvdata->mi2s_osr_clk[dai_id] = devm_clk_get_optional(dev,
+					     variant->dai_osr_clk_names[i]);
+		drvdata->mi2s_bit_clk[dai_id] = devm_clk_get(dev,
+						variant->dai_bit_clk_names[i]);
+		if (IS_ERR(drvdata->mi2s_bit_clk[dai_id])) {
+			dev_err(dev,
+				"error getting %s: %ld\n",
+				variant->dai_bit_clk_names[i],
+				PTR_ERR(drvdata->mi2s_bit_clk[dai_id]));
+			return PTR_ERR(drvdata->mi2s_bit_clk[dai_id]);
+		}
+	}
+
+	/* Allocation for i2sctl regmap fields */
+	drvdata->i2sctl = devm_kzalloc(&pdev->dev, sizeof(struct lpaif_i2sctl),
+					GFP_KERNEL);
+
+	/* Initialize bitfields for dai I2SCTL register */
+	ret = lpass_cpu_init_i2sctl_bitfields(dev, drvdata->i2sctl,
+						drvdata->lpaif_map);
+	if (ret) {
+		dev_err(dev, "error init i2sctl field: %d\n", ret);
+		return ret;
+	}
+
+	if (drvdata->hdmi_port_enable) {
+		ret = lpass_hdmi_init_bitfields(dev, drvdata->hdmiif_map);
+		if (ret) {
+			dev_err(dev, "%s error  hdmi init failed\n", __func__);
+			return ret;
+		}
+	}
+	ret = devm_snd_soc_register_component(dev,
+					      &lpass_cpu_comp_driver,
+					      variant->dai_driver,
+					      variant->num_dai);
+	if (ret) {
+		dev_err(dev, "error registering cpu driver: %d\n", ret);
+		goto err;
+	}
+
+	ret = asoc_qcom_lpass_platform_register(pdev);
+	if (ret) {
+		dev_err(dev, "error registering platform driver: %d\n", ret);
+		goto err;
+	}
+
+err:
+	return ret;
+}
+EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_platform_probe);
+
+int asoc_qcom_lpass_cpu_platform_remove(struct platform_device *pdev)
+{
+	struct lpass_data *drvdata = platform_get_drvdata(pdev);
+
+	if (drvdata->variant->exit)
+		drvdata->variant->exit(pdev);
+
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_platform_remove);
+
+MODULE_DESCRIPTION("QTi LPASS CPU Driver");
+MODULE_LICENSE("GPL v2");