Adding upstream version 4.19.249.upstream/4.19.249upstream

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

1 files changed, 1039 insertions, 0 deletions

diff --git a/sound/soc/codecs/wm8958-dsp2.c b/sound/soc/codecs/wm8958-dsp2.c
new file mode 100644
index 000000000..91de7ff3a
--- /dev/null
+++ b/sound/soc/codecs/wm8958-dsp2.c
@@ -0,0 +1,1039 @@
+/*
+ * wm8958-dsp2.c  --  WM8958 DSP2 support
+ *
+ * Copyright 2011 Wolfson Microelectronics plc
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <sound/soc.h>
+#include <sound/initval.h>
+#include <sound/tlv.h>
+#include <trace/events/asoc.h>
+
+#include <linux/mfd/wm8994/core.h>
+#include <linux/mfd/wm8994/registers.h>
+#include <linux/mfd/wm8994/pdata.h>
+#include <linux/mfd/wm8994/gpio.h>
+
+#include "wm8994.h"
+
+#define WM_FW_BLOCK_INFO 0xff
+#define WM_FW_BLOCK_PM   0x00
+#define WM_FW_BLOCK_X    0x01
+#define WM_FW_BLOCK_Y    0x02
+#define WM_FW_BLOCK_Z    0x03
+#define WM_FW_BLOCK_I    0x06
+#define WM_FW_BLOCK_A    0x08
+#define WM_FW_BLOCK_C    0x0c
+
+static int wm8958_dsp2_fw(struct snd_soc_component *component, const char *name,
+			  const struct firmware *fw, bool check)
+{
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+	u64 data64;
+	u32 data32;
+	const u8 *data;
+	char *str;
+	size_t block_len, len;
+	int ret = 0;
+
+	/* Suppress unneeded downloads */
+	if (wm8994->cur_fw == fw)
+		return 0;
+
+	if (fw->size < 32) {
+		dev_err(component->dev, "%s: firmware too short (%zd bytes)\n",
+			name, fw->size);
+		goto err;
+	}
+
+	if (memcmp(fw->data, "WMFW", 4) != 0) {
+		memcpy(&data32, fw->data, sizeof(data32));
+		data32 = be32_to_cpu(data32);
+		dev_err(component->dev, "%s: firmware has bad file magic %08x\n",
+			name, data32);
+		goto err;
+	}
+
+	memcpy(&data32, fw->data + 4, sizeof(data32));
+	len = be32_to_cpu(data32);
+
+	memcpy(&data32, fw->data + 8, sizeof(data32));
+	data32 = be32_to_cpu(data32);
+	if ((data32 >> 24) & 0xff) {
+		dev_err(component->dev, "%s: unsupported firmware version %d\n",
+			name, (data32 >> 24) & 0xff);
+		goto err;
+	}
+	if ((data32 & 0xffff) != 8958) {
+		dev_err(component->dev, "%s: unsupported target device %d\n",
+			name, data32 & 0xffff);
+		goto err;
+	}
+	if (((data32 >> 16) & 0xff) != 0xc) {
+		dev_err(component->dev, "%s: unsupported target core %d\n",
+			name, (data32 >> 16) & 0xff);
+		goto err;
+	}
+
+	if (check) {
+		memcpy(&data64, fw->data + 24, sizeof(u64));
+		dev_info(component->dev, "%s timestamp %llx\n",
+			 name, be64_to_cpu(data64));
+	} else {
+		snd_soc_component_write(component, 0x102, 0x2);
+		snd_soc_component_write(component, 0x900, 0x2);
+	}
+
+	data = fw->data + len;
+	len = fw->size - len;
+	while (len) {
+		if (len < 12) {
+			dev_err(component->dev, "%s short data block of %zd\n",
+				name, len);
+			goto err;
+		}
+
+		memcpy(&data32, data + 4, sizeof(data32));
+		block_len = be32_to_cpu(data32);
+		if (block_len + 8 > len) {
+			dev_err(component->dev, "%zd byte block longer than file\n",
+				block_len);
+			goto err;
+		}
+		if (block_len == 0) {
+			dev_err(component->dev, "Zero length block\n");
+			goto err;
+		}
+
+		memcpy(&data32, data, sizeof(data32));
+		data32 = be32_to_cpu(data32);
+
+		switch ((data32 >> 24) & 0xff) {
+		case WM_FW_BLOCK_INFO:
+			/* Informational text */
+			if (!check)
+				break;
+
+			str = kzalloc(block_len + 1, GFP_KERNEL);
+			if (str) {
+				memcpy(str, data + 8, block_len);
+				dev_info(component->dev, "%s: %s\n", name, str);
+				kfree(str);
+			} else {
+				dev_err(component->dev, "Out of memory\n");
+			}
+			break;
+		case WM_FW_BLOCK_PM:
+		case WM_FW_BLOCK_X:
+		case WM_FW_BLOCK_Y:
+		case WM_FW_BLOCK_Z:
+		case WM_FW_BLOCK_I:
+		case WM_FW_BLOCK_A:
+		case WM_FW_BLOCK_C:
+			dev_dbg(component->dev, "%s: %zd bytes of %x@%x\n", name,
+				block_len, (data32 >> 24) & 0xff,
+				data32 & 0xffffff);
+
+			if (check)
+				break;
+
+			data32 &= 0xffffff;
+
+			wm8994_bulk_write(wm8994->wm8994,
+					  data32 & 0xffffff,
+					  block_len / 2,
+					  (void *)(data + 8));
+
+			break;
+		default:
+			dev_warn(component->dev, "%s: unknown block type %d\n",
+				 name, (data32 >> 24) & 0xff);
+			break;
+		}
+
+		/* Round up to the next 32 bit word */
+		block_len += block_len % 4;
+
+		data += block_len + 8;
+		len -= block_len + 8;
+	}
+
+	if (!check) {
+		dev_dbg(component->dev, "%s: download done\n", name);
+		wm8994->cur_fw = fw;
+	} else {
+		dev_info(component->dev, "%s: got firmware\n", name);
+	}
+
+	goto ok;
+
+err:
+	ret = -EINVAL;
+ok:
+	if (!check) {
+		snd_soc_component_write(component, 0x900, 0x0);
+		snd_soc_component_write(component, 0x102, 0x0);
+	}
+
+	return ret;
+}
+
+static void wm8958_dsp_start_mbc(struct snd_soc_component *component, int path)
+{
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+	struct wm8994 *control = wm8994->wm8994;
+	int i;
+
+	/* If the DSP is already running then noop */
+	if (snd_soc_component_read32(component, WM8958_DSP2_PROGRAM) & WM8958_DSP2_ENA)
+		return;
+
+	/* If we have MBC firmware download it */
+	if (wm8994->mbc)
+		wm8958_dsp2_fw(component, "MBC", wm8994->mbc, false);
+
+	snd_soc_component_update_bits(component, WM8958_DSP2_PROGRAM,
+			    WM8958_DSP2_ENA, WM8958_DSP2_ENA);
+
+	/* If we've got user supplied MBC settings use them */
+	if (control->pdata.num_mbc_cfgs) {
+		struct wm8958_mbc_cfg *cfg
+			= &control->pdata.mbc_cfgs[wm8994->mbc_cfg];
+
+		for (i = 0; i < ARRAY_SIZE(cfg->coeff_regs); i++)
+			snd_soc_component_write(component, i + WM8958_MBC_BAND_1_K_1,
+				      cfg->coeff_regs[i]);
+
+		for (i = 0; i < ARRAY_SIZE(cfg->cutoff_regs); i++)
+			snd_soc_component_write(component,
+				      i + WM8958_MBC_BAND_2_LOWER_CUTOFF_C1_1,
+				      cfg->cutoff_regs[i]);
+	}
+
+	/* Run the DSP */
+	snd_soc_component_write(component, WM8958_DSP2_EXECCONTROL,
+		      WM8958_DSP2_RUNR);
+
+	/* And we're off! */
+	snd_soc_component_update_bits(component, WM8958_DSP2_CONFIG,
+			    WM8958_MBC_ENA |
+			    WM8958_MBC_SEL_MASK,
+			    path << WM8958_MBC_SEL_SHIFT |
+			    WM8958_MBC_ENA);
+}
+
+static void wm8958_dsp_start_vss(struct snd_soc_component *component, int path)
+{
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+	struct wm8994 *control = wm8994->wm8994;
+	int i, ena;
+
+	if (wm8994->mbc_vss)
+		wm8958_dsp2_fw(component, "MBC+VSS", wm8994->mbc_vss, false);
+
+	snd_soc_component_update_bits(component, WM8958_DSP2_PROGRAM,
+			    WM8958_DSP2_ENA, WM8958_DSP2_ENA);
+
+	/* If we've got user supplied settings use them */
+	if (control->pdata.num_mbc_cfgs) {
+		struct wm8958_mbc_cfg *cfg
+			= &control->pdata.mbc_cfgs[wm8994->mbc_cfg];
+
+		for (i = 0; i < ARRAY_SIZE(cfg->combined_regs); i++)
+			snd_soc_component_write(component, i + 0x2800,
+				      cfg->combined_regs[i]);
+	}
+
+	if (control->pdata.num_vss_cfgs) {
+		struct wm8958_vss_cfg *cfg
+			= &control->pdata.vss_cfgs[wm8994->vss_cfg];
+
+		for (i = 0; i < ARRAY_SIZE(cfg->regs); i++)
+			snd_soc_component_write(component, i + 0x2600, cfg->regs[i]);
+	}
+
+	if (control->pdata.num_vss_hpf_cfgs) {
+		struct wm8958_vss_hpf_cfg *cfg
+			= &control->pdata.vss_hpf_cfgs[wm8994->vss_hpf_cfg];
+
+		for (i = 0; i < ARRAY_SIZE(cfg->regs); i++)
+			snd_soc_component_write(component, i + 0x2400, cfg->regs[i]);
+	}
+
+	/* Run the DSP */
+	snd_soc_component_write(component, WM8958_DSP2_EXECCONTROL,
+		      WM8958_DSP2_RUNR);
+
+	/* Enable the algorithms we've selected */
+	ena = 0;
+	if (wm8994->mbc_ena[path])
+		ena |= 0x8;
+	if (wm8994->hpf2_ena[path])
+		ena |= 0x4;
+	if (wm8994->hpf1_ena[path])
+		ena |= 0x2;
+	if (wm8994->vss_ena[path])
+		ena |= 0x1;
+
+	snd_soc_component_write(component, 0x2201, ena);
+
+	/* Switch the DSP into the data path */
+	snd_soc_component_update_bits(component, WM8958_DSP2_CONFIG,
+			    WM8958_MBC_SEL_MASK | WM8958_MBC_ENA,
+			    path << WM8958_MBC_SEL_SHIFT | WM8958_MBC_ENA);
+}
+
+static void wm8958_dsp_start_enh_eq(struct snd_soc_component *component, int path)
+{
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+	struct wm8994 *control = wm8994->wm8994;
+	int i;
+
+	wm8958_dsp2_fw(component, "ENH_EQ", wm8994->enh_eq, false);
+
+	snd_soc_component_update_bits(component, WM8958_DSP2_PROGRAM,
+			    WM8958_DSP2_ENA, WM8958_DSP2_ENA);
+
+	/* If we've got user supplied settings use them */
+	if (control->pdata.num_enh_eq_cfgs) {
+		struct wm8958_enh_eq_cfg *cfg
+			= &control->pdata.enh_eq_cfgs[wm8994->enh_eq_cfg];
+
+		for (i = 0; i < ARRAY_SIZE(cfg->regs); i++)
+			snd_soc_component_write(component, i + 0x2200,
+				      cfg->regs[i]);
+	}
+
+	/* Run the DSP */
+	snd_soc_component_write(component, WM8958_DSP2_EXECCONTROL,
+		      WM8958_DSP2_RUNR);
+
+	/* Switch the DSP into the data path */
+	snd_soc_component_update_bits(component, WM8958_DSP2_CONFIG,
+			    WM8958_MBC_SEL_MASK | WM8958_MBC_ENA,
+			    path << WM8958_MBC_SEL_SHIFT | WM8958_MBC_ENA);
+}
+
+static void wm8958_dsp_apply(struct snd_soc_component *component, int path, int start)
+{
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+	int pwr_reg = snd_soc_component_read32(component, WM8994_POWER_MANAGEMENT_5);
+	int ena, reg, aif;
+
+	switch (path) {
+	case 0:
+		pwr_reg &= (WM8994_AIF1DAC1L_ENA | WM8994_AIF1DAC1R_ENA);
+		aif = 0;
+		break;
+	case 1:
+		pwr_reg &= (WM8994_AIF1DAC2L_ENA | WM8994_AIF1DAC2R_ENA);
+		aif = 0;
+		break;
+	case 2:
+		pwr_reg &= (WM8994_AIF2DACL_ENA | WM8994_AIF2DACR_ENA);
+		aif = 1;
+		break;
+	default:
+		WARN(1, "Invalid path %d\n", path);
+		return;
+	}
+
+	/* Do we have both an active AIF and an active algorithm? */
+	ena = wm8994->mbc_ena[path] || wm8994->vss_ena[path] ||
+		wm8994->hpf1_ena[path] || wm8994->hpf2_ena[path] ||
+		wm8994->enh_eq_ena[path];
+	if (!pwr_reg)
+		ena = 0;
+
+	reg = snd_soc_component_read32(component, WM8958_DSP2_PROGRAM);
+
+	dev_dbg(component->dev, "DSP path %d %d startup: %d, power: %x, DSP: %x\n",
+		path, wm8994->dsp_active, start, pwr_reg, reg);
+
+	if (start && ena) {
+		/* If the DSP is already running then noop */
+		if (reg & WM8958_DSP2_ENA)
+			return;
+
+		/* If either AIFnCLK is not yet enabled postpone */
+		if (!(snd_soc_component_read32(component, WM8994_AIF1_CLOCKING_1)
+		      & WM8994_AIF1CLK_ENA_MASK) &&
+		    !(snd_soc_component_read32(component, WM8994_AIF2_CLOCKING_1)
+		      & WM8994_AIF2CLK_ENA_MASK))
+			return;
+
+		/* Switch the clock over to the appropriate AIF */
+		snd_soc_component_update_bits(component, WM8994_CLOCKING_1,
+				    WM8958_DSP2CLK_SRC | WM8958_DSP2CLK_ENA,
+				    aif << WM8958_DSP2CLK_SRC_SHIFT |
+				    WM8958_DSP2CLK_ENA);
+
+		if (wm8994->enh_eq_ena[path])
+			wm8958_dsp_start_enh_eq(component, path);
+		else if (wm8994->vss_ena[path] || wm8994->hpf1_ena[path] ||
+		    wm8994->hpf2_ena[path])
+			wm8958_dsp_start_vss(component, path);
+		else if (wm8994->mbc_ena[path])
+			wm8958_dsp_start_mbc(component, path);
+
+		wm8994->dsp_active = path;
+
+		dev_dbg(component->dev, "DSP running in path %d\n", path);
+	}
+
+	if (!start && wm8994->dsp_active == path) {
+		/* If the DSP is already stopped then noop */
+		if (!(reg & WM8958_DSP2_ENA))
+			return;
+
+		snd_soc_component_update_bits(component, WM8958_DSP2_CONFIG,
+				    WM8958_MBC_ENA, 0);	
+		snd_soc_component_write(component, WM8958_DSP2_EXECCONTROL,
+			      WM8958_DSP2_STOP);
+		snd_soc_component_update_bits(component, WM8958_DSP2_PROGRAM,
+				    WM8958_DSP2_ENA, 0);
+		snd_soc_component_update_bits(component, WM8994_CLOCKING_1,
+				    WM8958_DSP2CLK_ENA, 0);
+
+		wm8994->dsp_active = -1;
+
+		dev_dbg(component->dev, "DSP stopped\n");
+	}
+}
+
+int wm8958_aif_ev(struct snd_soc_dapm_widget *w,
+		  struct snd_kcontrol *kcontrol, int event)
+{
+	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
+	struct wm8994 *control = dev_get_drvdata(component->dev->parent);
+	int i;
+
+	if (control->type != WM8958)
+		return 0;
+
+	switch (event) {
+	case SND_SOC_DAPM_POST_PMU:
+	case SND_SOC_DAPM_PRE_PMU:
+		for (i = 0; i < 3; i++)
+			wm8958_dsp_apply(component, i, 1);
+		break;
+	case SND_SOC_DAPM_POST_PMD:
+	case SND_SOC_DAPM_PRE_PMD:
+		for (i = 0; i < 3; i++)
+			wm8958_dsp_apply(component, i, 0);
+		break;
+	}
+
+	return 0;
+}
+
+/* Check if DSP2 is in use on another AIF */
+static int wm8958_dsp2_busy(struct wm8994_priv *wm8994, int aif)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(wm8994->mbc_ena); i++) {
+		if (i == aif)
+			continue;
+		if (wm8994->mbc_ena[i] || wm8994->vss_ena[i] ||
+		    wm8994->hpf1_ena[i] || wm8994->hpf2_ena[i])
+			return 1;
+	}
+
+	return 0;
+}
+
+static int wm8958_put_mbc_enum(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+	struct wm8994 *control = wm8994->wm8994;
+	int value = ucontrol->value.enumerated.item[0];
+	int reg;
+
+	/* Don't allow on the fly reconfiguration */
+	reg = snd_soc_component_read32(component, WM8994_CLOCKING_1);
+	if (reg < 0 || reg & WM8958_DSP2CLK_ENA)
+		return -EBUSY;
+
+	if (value >= control->pdata.num_mbc_cfgs)
+		return -EINVAL;
+
+	wm8994->mbc_cfg = value;
+
+	return 0;
+}
+
+static int wm8958_get_mbc_enum(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+
+	ucontrol->value.enumerated.item[0] = wm8994->mbc_cfg;
+
+	return 0;
+}
+
+static int wm8958_mbc_info(struct snd_kcontrol *kcontrol,
+			   struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 1;
+	return 0;
+}
+
+static int wm8958_mbc_get(struct snd_kcontrol *kcontrol,
+			  struct snd_ctl_elem_value *ucontrol)
+{
+	int mbc = kcontrol->private_value;
+	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+
+	ucontrol->value.integer.value[0] = wm8994->mbc_ena[mbc];
+
+	return 0;
+}
+
+static int wm8958_mbc_put(struct snd_kcontrol *kcontrol,
+			  struct snd_ctl_elem_value *ucontrol)
+{
+	int mbc = kcontrol->private_value;
+	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+
+	if (wm8994->mbc_ena[mbc] == ucontrol->value.integer.value[0])
+		return 0;
+
+	if (ucontrol->value.integer.value[0] > 1)
+		return -EINVAL;
+
+	if (wm8958_dsp2_busy(wm8994, mbc)) {
+		dev_dbg(component->dev, "DSP2 active on %d already\n", mbc);
+		return -EBUSY;
+	}
+
+	if (wm8994->enh_eq_ena[mbc])
+		return -EBUSY;
+
+	wm8994->mbc_ena[mbc] = ucontrol->value.integer.value[0];
+
+	wm8958_dsp_apply(component, mbc, wm8994->mbc_ena[mbc]);
+
+	return 1;
+}
+
+#define WM8958_MBC_SWITCH(xname, xval) {\
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
+	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,\
+	.info = wm8958_mbc_info, \
+	.get = wm8958_mbc_get, .put = wm8958_mbc_put, \
+	.private_value = xval }
+
+static int wm8958_put_vss_enum(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+	struct wm8994 *control = wm8994->wm8994;
+	int value = ucontrol->value.enumerated.item[0];
+	int reg;
+
+	/* Don't allow on the fly reconfiguration */
+	reg = snd_soc_component_read32(component, WM8994_CLOCKING_1);
+	if (reg < 0 || reg & WM8958_DSP2CLK_ENA)
+		return -EBUSY;
+
+	if (value >= control->pdata.num_vss_cfgs)
+		return -EINVAL;
+
+	wm8994->vss_cfg = value;
+
+	return 0;
+}
+
+static int wm8958_get_vss_enum(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+
+	ucontrol->value.enumerated.item[0] = wm8994->vss_cfg;
+
+	return 0;
+}
+
+static int wm8958_put_vss_hpf_enum(struct snd_kcontrol *kcontrol,
+				   struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+	struct wm8994 *control = wm8994->wm8994;
+	int value = ucontrol->value.enumerated.item[0];
+	int reg;
+
+	/* Don't allow on the fly reconfiguration */
+	reg = snd_soc_component_read32(component, WM8994_CLOCKING_1);
+	if (reg < 0 || reg & WM8958_DSP2CLK_ENA)
+		return -EBUSY;
+
+	if (value >= control->pdata.num_vss_hpf_cfgs)
+		return -EINVAL;
+
+	wm8994->vss_hpf_cfg = value;
+
+	return 0;
+}
+
+static int wm8958_get_vss_hpf_enum(struct snd_kcontrol *kcontrol,
+				   struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+
+	ucontrol->value.enumerated.item[0] = wm8994->vss_hpf_cfg;
+
+	return 0;
+}
+
+static int wm8958_vss_info(struct snd_kcontrol *kcontrol,
+			   struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 1;
+	return 0;
+}
+
+static int wm8958_vss_get(struct snd_kcontrol *kcontrol,
+			  struct snd_ctl_elem_value *ucontrol)
+{
+	int vss = kcontrol->private_value;
+	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+
+	ucontrol->value.integer.value[0] = wm8994->vss_ena[vss];
+
+	return 0;
+}
+
+static int wm8958_vss_put(struct snd_kcontrol *kcontrol,
+			  struct snd_ctl_elem_value *ucontrol)
+{
+	int vss = kcontrol->private_value;
+	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+
+	if (wm8994->vss_ena[vss] == ucontrol->value.integer.value[0])
+		return 0;
+
+	if (ucontrol->value.integer.value[0] > 1)
+		return -EINVAL;
+
+	if (!wm8994->mbc_vss)
+		return -ENODEV;
+
+	if (wm8958_dsp2_busy(wm8994, vss)) {
+		dev_dbg(component->dev, "DSP2 active on %d already\n", vss);
+		return -EBUSY;
+	}
+
+	if (wm8994->enh_eq_ena[vss])
+		return -EBUSY;
+
+	wm8994->vss_ena[vss] = ucontrol->value.integer.value[0];
+
+	wm8958_dsp_apply(component, vss, wm8994->vss_ena[vss]);
+
+	return 1;
+}
+
+
+#define WM8958_VSS_SWITCH(xname, xval) {\
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
+	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,\
+	.info = wm8958_vss_info, \
+	.get = wm8958_vss_get, .put = wm8958_vss_put, \
+	.private_value = xval }
+
+static int wm8958_hpf_info(struct snd_kcontrol *kcontrol,
+			   struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 1;
+	return 0;
+}
+
+static int wm8958_hpf_get(struct snd_kcontrol *kcontrol,
+			  struct snd_ctl_elem_value *ucontrol)
+{
+	int hpf = kcontrol->private_value;
+	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+
+	if (hpf < 3)
+		ucontrol->value.integer.value[0] = wm8994->hpf1_ena[hpf % 3];
+	else
+		ucontrol->value.integer.value[0] = wm8994->hpf2_ena[hpf % 3];
+
+	return 0;
+}
+
+static int wm8958_hpf_put(struct snd_kcontrol *kcontrol,
+			  struct snd_ctl_elem_value *ucontrol)
+{
+	int hpf = kcontrol->private_value;
+	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+
+	if (hpf < 3) {
+		if (wm8994->hpf1_ena[hpf % 3] ==
+		    ucontrol->value.integer.value[0])
+			return 0;
+	} else {
+		if (wm8994->hpf2_ena[hpf % 3] ==
+		    ucontrol->value.integer.value[0])
+			return 0;
+	}
+
+	if (ucontrol->value.integer.value[0] > 1)
+		return -EINVAL;
+
+	if (!wm8994->mbc_vss)
+		return -ENODEV;
+
+	if (wm8958_dsp2_busy(wm8994, hpf % 3)) {
+		dev_dbg(component->dev, "DSP2 active on %d already\n", hpf);
+		return -EBUSY;
+	}
+
+	if (wm8994->enh_eq_ena[hpf % 3])
+		return -EBUSY;
+
+	if (hpf < 3)
+		wm8994->hpf1_ena[hpf % 3] = ucontrol->value.integer.value[0];
+	else
+		wm8994->hpf2_ena[hpf % 3] = ucontrol->value.integer.value[0];
+
+	wm8958_dsp_apply(component, hpf % 3, ucontrol->value.integer.value[0]);
+
+	return 1;
+}
+
+#define WM8958_HPF_SWITCH(xname, xval) {\
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
+	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,\
+	.info = wm8958_hpf_info, \
+	.get = wm8958_hpf_get, .put = wm8958_hpf_put, \
+	.private_value = xval }
+
+static int wm8958_put_enh_eq_enum(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+	struct wm8994 *control = wm8994->wm8994;
+	int value = ucontrol->value.enumerated.item[0];
+	int reg;
+
+	/* Don't allow on the fly reconfiguration */
+	reg = snd_soc_component_read32(component, WM8994_CLOCKING_1);
+	if (reg < 0 || reg & WM8958_DSP2CLK_ENA)
+		return -EBUSY;
+
+	if (value >= control->pdata.num_enh_eq_cfgs)
+		return -EINVAL;
+
+	wm8994->enh_eq_cfg = value;
+
+	return 0;
+}
+
+static int wm8958_get_enh_eq_enum(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+
+	ucontrol->value.enumerated.item[0] = wm8994->enh_eq_cfg;
+
+	return 0;
+}
+
+static int wm8958_enh_eq_info(struct snd_kcontrol *kcontrol,
+			   struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 1;
+	return 0;
+}
+
+static int wm8958_enh_eq_get(struct snd_kcontrol *kcontrol,
+			  struct snd_ctl_elem_value *ucontrol)
+{
+	int eq = kcontrol->private_value;
+	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+
+	ucontrol->value.integer.value[0] = wm8994->enh_eq_ena[eq];
+
+	return 0;
+}
+
+static int wm8958_enh_eq_put(struct snd_kcontrol *kcontrol,
+			  struct snd_ctl_elem_value *ucontrol)
+{
+	int eq = kcontrol->private_value;
+	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+
+	if (wm8994->enh_eq_ena[eq] == ucontrol->value.integer.value[0])
+		return 0;
+
+	if (ucontrol->value.integer.value[0] > 1)
+		return -EINVAL;
+
+	if (!wm8994->enh_eq)
+		return -ENODEV;
+
+	if (wm8958_dsp2_busy(wm8994, eq)) {
+		dev_dbg(component->dev, "DSP2 active on %d already\n", eq);
+		return -EBUSY;
+	}
+
+	if (wm8994->mbc_ena[eq] || wm8994->vss_ena[eq] ||
+	    wm8994->hpf1_ena[eq] || wm8994->hpf2_ena[eq])
+		return -EBUSY;
+
+	wm8994->enh_eq_ena[eq] = ucontrol->value.integer.value[0];
+
+	wm8958_dsp_apply(component, eq, ucontrol->value.integer.value[0]);
+
+	return 1;
+}
+
+#define WM8958_ENH_EQ_SWITCH(xname, xval) {\
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
+	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,\
+	.info = wm8958_enh_eq_info, \
+	.get = wm8958_enh_eq_get, .put = wm8958_enh_eq_put, \
+	.private_value = xval }
+
+static const struct snd_kcontrol_new wm8958_mbc_snd_controls[] = {
+WM8958_MBC_SWITCH("AIF1DAC1 MBC Switch", 0),
+WM8958_MBC_SWITCH("AIF1DAC2 MBC Switch", 1),
+WM8958_MBC_SWITCH("AIF2DAC MBC Switch", 2),
+};
+
+static const struct snd_kcontrol_new wm8958_vss_snd_controls[] = {
+WM8958_VSS_SWITCH("AIF1DAC1 VSS Switch", 0),
+WM8958_VSS_SWITCH("AIF1DAC2 VSS Switch", 1),
+WM8958_VSS_SWITCH("AIF2DAC VSS Switch", 2),
+WM8958_HPF_SWITCH("AIF1DAC1 HPF1 Switch", 0),
+WM8958_HPF_SWITCH("AIF1DAC2 HPF1 Switch", 1),
+WM8958_HPF_SWITCH("AIF2DAC HPF1 Switch", 2),
+WM8958_HPF_SWITCH("AIF1DAC1 HPF2 Switch", 3),
+WM8958_HPF_SWITCH("AIF1DAC2 HPF2 Switch", 4),
+WM8958_HPF_SWITCH("AIF2DAC HPF2 Switch", 5),
+};
+
+static const struct snd_kcontrol_new wm8958_enh_eq_snd_controls[] = {
+WM8958_ENH_EQ_SWITCH("AIF1DAC1 Enhanced EQ Switch", 0),
+WM8958_ENH_EQ_SWITCH("AIF1DAC2 Enhanced EQ Switch", 1),
+WM8958_ENH_EQ_SWITCH("AIF2DAC Enhanced EQ Switch", 2),
+};
+
+static void wm8958_enh_eq_loaded(const struct firmware *fw, void *context)
+{
+	struct snd_soc_component *component = context;
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+
+	if (fw && (wm8958_dsp2_fw(component, "ENH_EQ", fw, true) == 0)) {
+		mutex_lock(&wm8994->fw_lock);
+		wm8994->enh_eq = fw;
+		mutex_unlock(&wm8994->fw_lock);
+	}
+}
+
+static void wm8958_mbc_vss_loaded(const struct firmware *fw, void *context)
+{
+	struct snd_soc_component *component = context;
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+
+	if (fw && (wm8958_dsp2_fw(component, "MBC+VSS", fw, true) == 0)) {
+		mutex_lock(&wm8994->fw_lock);
+		wm8994->mbc_vss = fw;
+		mutex_unlock(&wm8994->fw_lock);
+	}
+}
+
+static void wm8958_mbc_loaded(const struct firmware *fw, void *context)
+{
+	struct snd_soc_component *component = context;
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+
+	if (fw && (wm8958_dsp2_fw(component, "MBC", fw, true) == 0)) {
+		mutex_lock(&wm8994->fw_lock);
+		wm8994->mbc = fw;
+		mutex_unlock(&wm8994->fw_lock);
+	}
+}
+
+void wm8958_dsp2_init(struct snd_soc_component *component)
+{
+	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
+	struct wm8994 *control = wm8994->wm8994;
+	struct wm8994_pdata *pdata = &control->pdata;
+	int ret, i;
+
+	wm8994->dsp_active = -1;
+
+	snd_soc_add_component_controls(component, wm8958_mbc_snd_controls,
+			     ARRAY_SIZE(wm8958_mbc_snd_controls));
+	snd_soc_add_component_controls(component, wm8958_vss_snd_controls,
+			     ARRAY_SIZE(wm8958_vss_snd_controls));
+	snd_soc_add_component_controls(component, wm8958_enh_eq_snd_controls,
+			     ARRAY_SIZE(wm8958_enh_eq_snd_controls));
+
+
+	/* We don't *require* firmware and don't want to delay boot */
+	request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
+				"wm8958_mbc.wfw", component->dev, GFP_KERNEL,
+				component, wm8958_mbc_loaded);
+	request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
+				"wm8958_mbc_vss.wfw", component->dev, GFP_KERNEL,
+				component, wm8958_mbc_vss_loaded);
+	request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
+				"wm8958_enh_eq.wfw", component->dev, GFP_KERNEL,
+				component, wm8958_enh_eq_loaded);
+
+	if (pdata->num_mbc_cfgs) {
+		struct snd_kcontrol_new control[] = {
+			SOC_ENUM_EXT("MBC Mode", wm8994->mbc_enum,
+				     wm8958_get_mbc_enum, wm8958_put_mbc_enum),
+		};
+
+		/* We need an array of texts for the enum API */
+		wm8994->mbc_texts = kmalloc_array(pdata->num_mbc_cfgs,
+						  sizeof(char *),
+						  GFP_KERNEL);
+		if (!wm8994->mbc_texts)
+			return;
+
+		for (i = 0; i < pdata->num_mbc_cfgs; i++)
+			wm8994->mbc_texts[i] = pdata->mbc_cfgs[i].name;
+
+		wm8994->mbc_enum.items = pdata->num_mbc_cfgs;
+		wm8994->mbc_enum.texts = wm8994->mbc_texts;
+
+		ret = snd_soc_add_component_controls(wm8994->hubs.component,
+						 control, 1);
+		if (ret != 0)
+			dev_err(wm8994->hubs.component->dev,
+				"Failed to add MBC mode controls: %d\n", ret);
+	}
+
+	if (pdata->num_vss_cfgs) {
+		struct snd_kcontrol_new control[] = {
+			SOC_ENUM_EXT("VSS Mode", wm8994->vss_enum,
+				     wm8958_get_vss_enum, wm8958_put_vss_enum),
+		};
+
+		/* We need an array of texts for the enum API */
+		wm8994->vss_texts = kmalloc_array(pdata->num_vss_cfgs,
+						  sizeof(char *),
+						  GFP_KERNEL);
+		if (!wm8994->vss_texts)
+			return;
+
+		for (i = 0; i < pdata->num_vss_cfgs; i++)
+			wm8994->vss_texts[i] = pdata->vss_cfgs[i].name;
+
+		wm8994->vss_enum.items = pdata->num_vss_cfgs;
+		wm8994->vss_enum.texts = wm8994->vss_texts;
+
+		ret = snd_soc_add_component_controls(wm8994->hubs.component,
+						 control, 1);
+		if (ret != 0)
+			dev_err(wm8994->hubs.component->dev,
+				"Failed to add VSS mode controls: %d\n", ret);
+	}
+
+	if (pdata->num_vss_hpf_cfgs) {
+		struct snd_kcontrol_new control[] = {
+			SOC_ENUM_EXT("VSS HPF Mode", wm8994->vss_hpf_enum,
+				     wm8958_get_vss_hpf_enum,
+				     wm8958_put_vss_hpf_enum),
+		};
+
+		/* We need an array of texts for the enum API */
+		wm8994->vss_hpf_texts = kmalloc_array(pdata->num_vss_hpf_cfgs,
+						      sizeof(char *),
+						      GFP_KERNEL);
+		if (!wm8994->vss_hpf_texts)
+			return;
+
+		for (i = 0; i < pdata->num_vss_hpf_cfgs; i++)
+			wm8994->vss_hpf_texts[i] = pdata->vss_hpf_cfgs[i].name;
+
+		wm8994->vss_hpf_enum.items = pdata->num_vss_hpf_cfgs;
+		wm8994->vss_hpf_enum.texts = wm8994->vss_hpf_texts;
+
+		ret = snd_soc_add_component_controls(wm8994->hubs.component,
+						 control, 1);
+		if (ret != 0)
+			dev_err(wm8994->hubs.component->dev,
+				"Failed to add VSS HPFmode controls: %d\n",
+				ret);
+	}
+
+	if (pdata->num_enh_eq_cfgs) {
+		struct snd_kcontrol_new control[] = {
+			SOC_ENUM_EXT("Enhanced EQ Mode", wm8994->enh_eq_enum,
+				     wm8958_get_enh_eq_enum,
+				     wm8958_put_enh_eq_enum),
+		};
+
+		/* We need an array of texts for the enum API */
+		wm8994->enh_eq_texts = kmalloc_array(pdata->num_enh_eq_cfgs,
+						     sizeof(char *),
+						     GFP_KERNEL);
+		if (!wm8994->enh_eq_texts)
+			return;
+
+		for (i = 0; i < pdata->num_enh_eq_cfgs; i++)
+			wm8994->enh_eq_texts[i] = pdata->enh_eq_cfgs[i].name;
+
+		wm8994->enh_eq_enum.items = pdata->num_enh_eq_cfgs;
+		wm8994->enh_eq_enum.texts = wm8994->enh_eq_texts;
+
+		ret = snd_soc_add_component_controls(wm8994->hubs.component,
+						 control, 1);
+		if (ret != 0)
+			dev_err(wm8994->hubs.component->dev,
+				"Failed to add enhanced EQ controls: %d\n",
+				ret);
+	}
+}