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/soc-ops.c b/sound/soc/soc-ops.c
new file mode 100644
index 000000000..daecd386d
--- /dev/null
+++ b/sound/soc/soc-ops.c
@@ -0,0 +1,998 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// soc-ops.c  --  Generic ASoC operations
+//
+// Copyright 2005 Wolfson Microelectronics PLC.
+// Copyright 2005 Openedhand Ltd.
+// Copyright (C) 2010 Slimlogic Ltd.
+// Copyright (C) 2010 Texas Instruments Inc.
+//
+// Author: Liam Girdwood <lrg@slimlogic.co.uk>
+//         with code, comments and ideas from :-
+//         Richard Purdie <richard@openedhand.com>
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/bitops.h>
+#include <linux/ctype.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dpcm.h>
+#include <sound/initval.h>
+
+/**
+ * snd_soc_info_enum_double - enumerated double mixer info callback
+ * @kcontrol: mixer control
+ * @uinfo: control element information
+ *
+ * Callback to provide information about a double enumerated
+ * mixer control.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_info *uinfo)
+{
+	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+
+	return snd_ctl_enum_info(uinfo, e->shift_l == e->shift_r ? 1 : 2,
+				 e->items, e->texts);
+}
+EXPORT_SYMBOL_GPL(snd_soc_info_enum_double);
+
+/**
+ * snd_soc_get_enum_double - enumerated double mixer get callback
+ * @kcontrol: mixer control
+ * @ucontrol: control element information
+ *
+ * Callback to get the value of a double enumerated mixer.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+	unsigned int val, item;
+	unsigned int reg_val;
+
+	reg_val = snd_soc_component_read(component, e->reg);
+	val = (reg_val >> e->shift_l) & e->mask;
+	item = snd_soc_enum_val_to_item(e, val);
+	ucontrol->value.enumerated.item[0] = item;
+	if (e->shift_l != e->shift_r) {
+		val = (reg_val >> e->shift_r) & e->mask;
+		item = snd_soc_enum_val_to_item(e, val);
+		ucontrol->value.enumerated.item[1] = item;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_get_enum_double);
+
+/**
+ * snd_soc_put_enum_double - enumerated double mixer put callback
+ * @kcontrol: mixer control
+ * @ucontrol: control element information
+ *
+ * Callback to set the value of a double enumerated mixer.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+	unsigned int *item = ucontrol->value.enumerated.item;
+	unsigned int val;
+	unsigned int mask;
+
+	if (item[0] >= e->items)
+		return -EINVAL;
+	val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l;
+	mask = e->mask << e->shift_l;
+	if (e->shift_l != e->shift_r) {
+		if (item[1] >= e->items)
+			return -EINVAL;
+		val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_r;
+		mask |= e->mask << e->shift_r;
+	}
+
+	return snd_soc_component_update_bits(component, e->reg, mask, val);
+}
+EXPORT_SYMBOL_GPL(snd_soc_put_enum_double);
+
+/**
+ * snd_soc_read_signed - Read a codec register and interpret as signed value
+ * @component: component
+ * @reg: Register to read
+ * @mask: Mask to use after shifting the register value
+ * @shift: Right shift of register value
+ * @sign_bit: Bit that describes if a number is negative or not.
+ * @signed_val: Pointer to where the read value should be stored
+ *
+ * This functions reads a codec register. The register value is shifted right
+ * by 'shift' bits and masked with the given 'mask'. Afterwards it translates
+ * the given registervalue into a signed integer if sign_bit is non-zero.
+ *
+ * Returns 0 on sucess, otherwise an error value
+ */
+static int snd_soc_read_signed(struct snd_soc_component *component,
+	unsigned int reg, unsigned int mask, unsigned int shift,
+	unsigned int sign_bit, int *signed_val)
+{
+	int ret;
+	unsigned int val;
+
+	val = snd_soc_component_read(component, reg);
+	val = (val >> shift) & mask;
+
+	if (!sign_bit) {
+		*signed_val = val;
+		return 0;
+	}
+
+	/* non-negative number */
+	if (!(val & BIT(sign_bit))) {
+		*signed_val = val;
+		return 0;
+	}
+
+	ret = val;
+
+	/*
+	 * The register most probably does not contain a full-sized int.
+	 * Instead we have an arbitrary number of bits in a signed
+	 * representation which has to be translated into a full-sized int.
+	 * This is done by filling up all bits above the sign-bit.
+	 */
+	ret |= ~((int)(BIT(sign_bit) - 1));
+
+	*signed_val = ret;
+
+	return 0;
+}
+
+/**
+ * snd_soc_info_volsw - single mixer info callback
+ * @kcontrol: mixer control
+ * @uinfo: control element information
+ *
+ * Callback to provide information about a single mixer control, or a double
+ * mixer control that spans 2 registers.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_info *uinfo)
+{
+	struct soc_mixer_control *mc =
+		(struct soc_mixer_control *)kcontrol->private_value;
+	int platform_max;
+
+	if (!mc->platform_max)
+		mc->platform_max = mc->max;
+	platform_max = mc->platform_max;
+
+	if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume"))
+		uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	else
+		uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+
+	uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = platform_max - mc->min;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_info_volsw);
+
+/**
+ * snd_soc_info_volsw_sx - Mixer info callback for SX TLV controls
+ * @kcontrol: mixer control
+ * @uinfo: control element information
+ *
+ * Callback to provide information about a single mixer control, or a double
+ * mixer control that spans 2 registers of the SX TLV type. SX TLV controls
+ * have a range that represents both positive and negative values either side
+ * of zero but without a sign bit.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_info_volsw_sx(struct snd_kcontrol *kcontrol,
+			  struct snd_ctl_elem_info *uinfo)
+{
+	struct soc_mixer_control *mc =
+		(struct soc_mixer_control *)kcontrol->private_value;
+
+	snd_soc_info_volsw(kcontrol, uinfo);
+	/* Max represents the number of levels in an SX control not the
+	 * maximum value, so add the minimum value back on
+	 */
+	uinfo->value.integer.max += mc->min;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_info_volsw_sx);
+
+/**
+ * snd_soc_get_volsw - single mixer get callback
+ * @kcontrol: mixer control
+ * @ucontrol: control element information
+ *
+ * Callback to get the value of a single mixer control, or a double mixer
+ * control that spans 2 registers.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+	struct soc_mixer_control *mc =
+		(struct soc_mixer_control *)kcontrol->private_value;
+	unsigned int reg = mc->reg;
+	unsigned int reg2 = mc->rreg;
+	unsigned int shift = mc->shift;
+	unsigned int rshift = mc->rshift;
+	int max = mc->max;
+	int min = mc->min;
+	int sign_bit = mc->sign_bit;
+	unsigned int mask = (1 << fls(max)) - 1;
+	unsigned int invert = mc->invert;
+	int val;
+	int ret;
+
+	if (sign_bit)
+		mask = BIT(sign_bit + 1) - 1;
+
+	ret = snd_soc_read_signed(component, reg, mask, shift, sign_bit, &val);
+	if (ret)
+		return ret;
+
+	ucontrol->value.integer.value[0] = val - min;
+	if (invert)
+		ucontrol->value.integer.value[0] =
+			max - ucontrol->value.integer.value[0];
+
+	if (snd_soc_volsw_is_stereo(mc)) {
+		if (reg == reg2)
+			ret = snd_soc_read_signed(component, reg, mask, rshift,
+				sign_bit, &val);
+		else
+			ret = snd_soc_read_signed(component, reg2, mask, shift,
+				sign_bit, &val);
+		if (ret)
+			return ret;
+
+		ucontrol->value.integer.value[1] = val - min;
+		if (invert)
+			ucontrol->value.integer.value[1] =
+				max - ucontrol->value.integer.value[1];
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_get_volsw);
+
+/**
+ * snd_soc_put_volsw - single mixer put callback
+ * @kcontrol: mixer control
+ * @ucontrol: control element information
+ *
+ * Callback to set the value of a single mixer control, or a double mixer
+ * control that spans 2 registers.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+	struct soc_mixer_control *mc =
+		(struct soc_mixer_control *)kcontrol->private_value;
+	unsigned int reg = mc->reg;
+	unsigned int reg2 = mc->rreg;
+	unsigned int shift = mc->shift;
+	unsigned int rshift = mc->rshift;
+	int max = mc->max;
+	int min = mc->min;
+	unsigned int sign_bit = mc->sign_bit;
+	unsigned int mask = (1 << fls(max)) - 1;
+	unsigned int invert = mc->invert;
+	int err, ret;
+	bool type_2r = false;
+	unsigned int val2 = 0;
+	unsigned int val, val_mask;
+
+	if (sign_bit)
+		mask = BIT(sign_bit + 1) - 1;
+
+	val = ucontrol->value.integer.value[0];
+	if (mc->platform_max && ((int)val + min) > mc->platform_max)
+		return -EINVAL;
+	if (val > max - min)
+		return -EINVAL;
+	if (val < 0)
+		return -EINVAL;
+	val = (val + min) & mask;
+	if (invert)
+		val = max - val;
+	val_mask = mask << shift;
+	val = val << shift;
+	if (snd_soc_volsw_is_stereo(mc)) {
+		val2 = ucontrol->value.integer.value[1];
+		if (mc->platform_max && ((int)val2 + min) > mc->platform_max)
+			return -EINVAL;
+		if (val2 > max - min)
+			return -EINVAL;
+		if (val2 < 0)
+			return -EINVAL;
+		val2 = (val2 + min) & mask;
+		if (invert)
+			val2 = max - val2;
+		if (reg == reg2) {
+			val_mask |= mask << rshift;
+			val |= val2 << rshift;
+		} else {
+			val2 = val2 << shift;
+			type_2r = true;
+		}
+	}
+	err = snd_soc_component_update_bits(component, reg, val_mask, val);
+	if (err < 0)
+		return err;
+	ret = err;
+
+	if (type_2r) {
+		err = snd_soc_component_update_bits(component, reg2, val_mask,
+						    val2);
+		/* Don't discard any error code or drop change flag */
+		if (ret == 0 || err < 0) {
+			ret = err;
+		}
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(snd_soc_put_volsw);
+
+/**
+ * snd_soc_get_volsw_sx - single mixer get callback
+ * @kcontrol: mixer control
+ * @ucontrol: control element information
+ *
+ * Callback to get the value of a single mixer control, or a double mixer
+ * control that spans 2 registers.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol,
+		      struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+	struct soc_mixer_control *mc =
+	    (struct soc_mixer_control *)kcontrol->private_value;
+	unsigned int reg = mc->reg;
+	unsigned int reg2 = mc->rreg;
+	unsigned int shift = mc->shift;
+	unsigned int rshift = mc->rshift;
+	int max = mc->max;
+	int min = mc->min;
+	unsigned int mask = (1U << (fls(min + max) - 1)) - 1;
+	unsigned int val;
+
+	val = snd_soc_component_read(component, reg);
+	ucontrol->value.integer.value[0] = ((val >> shift) - min) & mask;
+
+	if (snd_soc_volsw_is_stereo(mc)) {
+		val = snd_soc_component_read(component, reg2);
+		val = ((val >> rshift) - min) & mask;
+		ucontrol->value.integer.value[1] = val;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_get_volsw_sx);
+
+/**
+ * snd_soc_put_volsw_sx - double mixer set callback
+ * @kcontrol: mixer control
+ * @ucontrol: control element information
+ *
+ * Callback to set the value of a double mixer control that spans 2 registers.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
+			 struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+	struct soc_mixer_control *mc =
+	    (struct soc_mixer_control *)kcontrol->private_value;
+
+	unsigned int reg = mc->reg;
+	unsigned int reg2 = mc->rreg;
+	unsigned int shift = mc->shift;
+	unsigned int rshift = mc->rshift;
+	int max = mc->max;
+	int min = mc->min;
+	unsigned int mask = (1U << (fls(min + max) - 1)) - 1;
+	int err = 0;
+	unsigned int val, val_mask, val2 = 0;
+
+	val = ucontrol->value.integer.value[0];
+	if (mc->platform_max && val > mc->platform_max)
+		return -EINVAL;
+	if (val > max)
+		return -EINVAL;
+	if (val < 0)
+		return -EINVAL;
+	val_mask = mask << shift;
+	val = (val + min) & mask;
+	val = val << shift;
+
+	err = snd_soc_component_update_bits(component, reg, val_mask, val);
+	if (err < 0)
+		return err;
+
+	if (snd_soc_volsw_is_stereo(mc)) {
+		val2 = ucontrol->value.integer.value[1];
+
+		if (mc->platform_max && val2 > mc->platform_max)
+			return -EINVAL;
+		if (val2 > max)
+			return -EINVAL;
+
+		val_mask = mask << rshift;
+		val2 = (val2 + min) & mask;
+		val2 = val2 << rshift;
+
+		err = snd_soc_component_update_bits(component, reg2, val_mask,
+			val2);
+	}
+	return err;
+}
+EXPORT_SYMBOL_GPL(snd_soc_put_volsw_sx);
+
+/**
+ * snd_soc_info_volsw_range - single mixer info callback with range.
+ * @kcontrol: mixer control
+ * @uinfo: control element information
+ *
+ * Callback to provide information, within a range, about a single
+ * mixer control.
+ *
+ * returns 0 for success.
+ */
+int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_info *uinfo)
+{
+	struct soc_mixer_control *mc =
+		(struct soc_mixer_control *)kcontrol->private_value;
+	int platform_max;
+	int min = mc->min;
+
+	if (!mc->platform_max)
+		mc->platform_max = mc->max;
+	platform_max = mc->platform_max;
+
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = platform_max - min;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_info_volsw_range);
+
+/**
+ * snd_soc_put_volsw_range - single mixer put value callback with range.
+ * @kcontrol: mixer control
+ * @ucontrol: control element information
+ *
+ * Callback to set the value, within a range, for a single mixer control.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct soc_mixer_control *mc =
+		(struct soc_mixer_control *)kcontrol->private_value;
+	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+	unsigned int reg = mc->reg;
+	unsigned int rreg = mc->rreg;
+	unsigned int shift = mc->shift;
+	int min = mc->min;
+	int max = mc->max;
+	unsigned int mask = (1 << fls(max)) - 1;
+	unsigned int invert = mc->invert;
+	unsigned int val, val_mask;
+	int err, ret, tmp;
+
+	tmp = ucontrol->value.integer.value[0];
+	if (tmp < 0)
+		return -EINVAL;
+	if (mc->platform_max && tmp > mc->platform_max)
+		return -EINVAL;
+	if (tmp > mc->max - mc->min)
+		return -EINVAL;
+
+	if (invert)
+		val = (max - ucontrol->value.integer.value[0]) & mask;
+	else
+		val = ((ucontrol->value.integer.value[0] + min) & mask);
+	val_mask = mask << shift;
+	val = val << shift;
+
+	err = snd_soc_component_update_bits(component, reg, val_mask, val);
+	if (err < 0)
+		return err;
+	ret = err;
+
+	if (snd_soc_volsw_is_stereo(mc)) {
+		tmp = ucontrol->value.integer.value[1];
+		if (tmp < 0)
+			return -EINVAL;
+		if (mc->platform_max && tmp > mc->platform_max)
+			return -EINVAL;
+		if (tmp > mc->max - mc->min)
+			return -EINVAL;
+
+		if (invert)
+			val = (max - ucontrol->value.integer.value[1]) & mask;
+		else
+			val = ((ucontrol->value.integer.value[1] + min) & mask);
+		val_mask = mask << shift;
+		val = val << shift;
+
+		err = snd_soc_component_update_bits(component, rreg, val_mask,
+			val);
+		/* Don't discard any error code or drop change flag */
+		if (ret == 0 || err < 0) {
+			ret = err;
+		}
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(snd_soc_put_volsw_range);
+
+/**
+ * snd_soc_get_volsw_range - single mixer get callback with range
+ * @kcontrol: mixer control
+ * @ucontrol: control element information
+ *
+ * Callback to get the value, within a range, of a single mixer control.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+	struct soc_mixer_control *mc =
+		(struct soc_mixer_control *)kcontrol->private_value;
+	unsigned int reg = mc->reg;
+	unsigned int rreg = mc->rreg;
+	unsigned int shift = mc->shift;
+	int min = mc->min;
+	int max = mc->max;
+	unsigned int mask = (1 << fls(max)) - 1;
+	unsigned int invert = mc->invert;
+	unsigned int val;
+
+	val = snd_soc_component_read(component, reg);
+	ucontrol->value.integer.value[0] = (val >> shift) & mask;
+	if (invert)
+		ucontrol->value.integer.value[0] =
+			max - ucontrol->value.integer.value[0];
+	else
+		ucontrol->value.integer.value[0] =
+			ucontrol->value.integer.value[0] - min;
+
+	if (snd_soc_volsw_is_stereo(mc)) {
+		val = snd_soc_component_read(component, rreg);
+		ucontrol->value.integer.value[1] = (val >> shift) & mask;
+		if (invert)
+			ucontrol->value.integer.value[1] =
+				max - ucontrol->value.integer.value[1];
+		else
+			ucontrol->value.integer.value[1] =
+				ucontrol->value.integer.value[1] - min;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_get_volsw_range);
+
+/**
+ * snd_soc_limit_volume - Set new limit to an existing volume control.
+ *
+ * @card: where to look for the control
+ * @name: Name of the control
+ * @max: new maximum limit
+ *
+ * Return 0 for success, else error.
+ */
+int snd_soc_limit_volume(struct snd_soc_card *card,
+	const char *name, int max)
+{
+	struct snd_kcontrol *kctl;
+	struct soc_mixer_control *mc;
+	int ret = -EINVAL;
+
+	/* Sanity check for name and max */
+	if (unlikely(!name || max <= 0))
+		return -EINVAL;
+
+	kctl = snd_soc_card_get_kcontrol(card, name);
+	if (kctl) {
+		mc = (struct soc_mixer_control *)kctl->private_value;
+		if (max <= mc->max) {
+			mc->platform_max = max;
+			ret = 0;
+		}
+	}
+	return ret;
+}
+EXPORT_SYMBOL_GPL(snd_soc_limit_volume);
+
+int snd_soc_bytes_info(struct snd_kcontrol *kcontrol,
+		       struct snd_ctl_elem_info *uinfo)
+{
+	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+	struct soc_bytes *params = (void *)kcontrol->private_value;
+
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
+	uinfo->count = params->num_regs * component->val_bytes;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_bytes_info);
+
+int snd_soc_bytes_get(struct snd_kcontrol *kcontrol,
+		      struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+	struct soc_bytes *params = (void *)kcontrol->private_value;
+	int ret;
+
+	if (component->regmap)
+		ret = regmap_raw_read(component->regmap, params->base,
+				      ucontrol->value.bytes.data,
+				      params->num_regs * component->val_bytes);
+	else
+		ret = -EINVAL;
+
+	/* Hide any masked bytes to ensure consistent data reporting */
+	if (ret == 0 && params->mask) {
+		switch (component->val_bytes) {
+		case 1:
+			ucontrol->value.bytes.data[0] &= ~params->mask;
+			break;
+		case 2:
+			((u16 *)(&ucontrol->value.bytes.data))[0]
+				&= cpu_to_be16(~params->mask);
+			break;
+		case 4:
+			((u32 *)(&ucontrol->value.bytes.data))[0]
+				&= cpu_to_be32(~params->mask);
+			break;
+		default:
+			return -EINVAL;
+		}
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(snd_soc_bytes_get);
+
+int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
+		      struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+	struct soc_bytes *params = (void *)kcontrol->private_value;
+	int ret, len;
+	unsigned int val, mask;
+	void *data;
+
+	if (!component->regmap || !params->num_regs)
+		return -EINVAL;
+
+	len = params->num_regs * component->val_bytes;
+
+	data = kmemdup(ucontrol->value.bytes.data, len, GFP_KERNEL | GFP_DMA);
+	if (!data)
+		return -ENOMEM;
+
+	/*
+	 * If we've got a mask then we need to preserve the register
+	 * bits.  We shouldn't modify the incoming data so take a
+	 * copy.
+	 */
+	if (params->mask) {
+		ret = regmap_read(component->regmap, params->base, &val);
+		if (ret != 0)
+			goto out;
+
+		val &= params->mask;
+
+		switch (component->val_bytes) {
+		case 1:
+			((u8 *)data)[0] &= ~params->mask;
+			((u8 *)data)[0] |= val;
+			break;
+		case 2:
+			mask = ~params->mask;
+			ret = regmap_parse_val(component->regmap,
+							&mask, &mask);
+			if (ret != 0)
+				goto out;
+
+			((u16 *)data)[0] &= mask;
+
+			ret = regmap_parse_val(component->regmap,
+							&val, &val);
+			if (ret != 0)
+				goto out;
+
+			((u16 *)data)[0] |= val;
+			break;
+		case 4:
+			mask = ~params->mask;
+			ret = regmap_parse_val(component->regmap,
+							&mask, &mask);
+			if (ret != 0)
+				goto out;
+
+			((u32 *)data)[0] &= mask;
+
+			ret = regmap_parse_val(component->regmap,
+							&val, &val);
+			if (ret != 0)
+				goto out;
+
+			((u32 *)data)[0] |= val;
+			break;
+		default:
+			ret = -EINVAL;
+			goto out;
+		}
+	}
+
+	ret = regmap_raw_write(component->regmap, params->base,
+			       data, len);
+
+out:
+	kfree(data);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(snd_soc_bytes_put);
+
+int snd_soc_bytes_info_ext(struct snd_kcontrol *kcontrol,
+			struct snd_ctl_elem_info *ucontrol)
+{
+	struct soc_bytes_ext *params = (void *)kcontrol->private_value;
+
+	ucontrol->type = SNDRV_CTL_ELEM_TYPE_BYTES;
+	ucontrol->count = params->max;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_bytes_info_ext);
+
+int snd_soc_bytes_tlv_callback(struct snd_kcontrol *kcontrol, int op_flag,
+				unsigned int size, unsigned int __user *tlv)
+{
+	struct soc_bytes_ext *params = (void *)kcontrol->private_value;
+	unsigned int count = size < params->max ? size : params->max;
+	int ret = -ENXIO;
+
+	switch (op_flag) {
+	case SNDRV_CTL_TLV_OP_READ:
+		if (params->get)
+			ret = params->get(kcontrol, tlv, count);
+		break;
+	case SNDRV_CTL_TLV_OP_WRITE:
+		if (params->put)
+			ret = params->put(kcontrol, tlv, count);
+		break;
+	}
+	return ret;
+}
+EXPORT_SYMBOL_GPL(snd_soc_bytes_tlv_callback);
+
+/**
+ * snd_soc_info_xr_sx - signed multi register info callback
+ * @kcontrol: mreg control
+ * @uinfo: control element information
+ *
+ * Callback to provide information of a control that can
+ * span multiple codec registers which together
+ * forms a single signed value in a MSB/LSB manner.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_info *uinfo)
+{
+	struct soc_mreg_control *mc =
+		(struct soc_mreg_control *)kcontrol->private_value;
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = mc->min;
+	uinfo->value.integer.max = mc->max;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_info_xr_sx);
+
+/**
+ * snd_soc_get_xr_sx - signed multi register get callback
+ * @kcontrol: mreg control
+ * @ucontrol: control element information
+ *
+ * Callback to get the value of a control that can span
+ * multiple codec registers which together forms a single
+ * signed value in a MSB/LSB manner. The control supports
+ * specifying total no of bits used to allow for bitfields
+ * across the multiple codec registers.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+	struct soc_mreg_control *mc =
+		(struct soc_mreg_control *)kcontrol->private_value;
+	unsigned int regbase = mc->regbase;
+	unsigned int regcount = mc->regcount;
+	unsigned int regwshift = component->val_bytes * BITS_PER_BYTE;
+	unsigned int regwmask = (1UL<<regwshift)-1;
+	unsigned int invert = mc->invert;
+	unsigned long mask = (1UL<<mc->nbits)-1;
+	long min = mc->min;
+	long max = mc->max;
+	long val = 0;
+	unsigned int regval;
+	unsigned int i;
+
+	for (i = 0; i < regcount; i++) {
+		regval = snd_soc_component_read(component, regbase+i);
+		val |= (regval & regwmask) << (regwshift*(regcount-i-1));
+	}
+	val &= mask;
+	if (min < 0 && val > max)
+		val |= ~mask;
+	if (invert)
+		val = max - val;
+	ucontrol->value.integer.value[0] = val;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_get_xr_sx);
+
+/**
+ * snd_soc_put_xr_sx - signed multi register get callback
+ * @kcontrol: mreg control
+ * @ucontrol: control element information
+ *
+ * Callback to set the value of a control that can span
+ * multiple codec registers which together forms a single
+ * signed value in a MSB/LSB manner. The control supports
+ * specifying total no of bits used to allow for bitfields
+ * across the multiple codec registers.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+	struct soc_mreg_control *mc =
+		(struct soc_mreg_control *)kcontrol->private_value;
+	unsigned int regbase = mc->regbase;
+	unsigned int regcount = mc->regcount;
+	unsigned int regwshift = component->val_bytes * BITS_PER_BYTE;
+	unsigned int regwmask = (1UL<<regwshift)-1;
+	unsigned int invert = mc->invert;
+	unsigned long mask = (1UL<<mc->nbits)-1;
+	long max = mc->max;
+	long val = ucontrol->value.integer.value[0];
+	unsigned int i, regval, regmask;
+	int err;
+
+	if (val < mc->min || val > mc->max)
+		return -EINVAL;
+	if (invert)
+		val = max - val;
+	val &= mask;
+	for (i = 0; i < regcount; i++) {
+		regval = (val >> (regwshift*(regcount-i-1))) & regwmask;
+		regmask = (mask >> (regwshift*(regcount-i-1))) & regwmask;
+		err = snd_soc_component_update_bits(component, regbase+i,
+				regmask, regval);
+		if (err < 0)
+			return err;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_put_xr_sx);
+
+/**
+ * snd_soc_get_strobe - strobe get callback
+ * @kcontrol: mixer control
+ * @ucontrol: control element information
+ *
+ * Callback get the value of a strobe mixer control.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_get_strobe(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+	struct soc_mixer_control *mc =
+		(struct soc_mixer_control *)kcontrol->private_value;
+	unsigned int reg = mc->reg;
+	unsigned int shift = mc->shift;
+	unsigned int mask = 1 << shift;
+	unsigned int invert = mc->invert != 0;
+	unsigned int val;
+
+	val = snd_soc_component_read(component, reg);
+	val &= mask;
+
+	if (shift != 0 && val != 0)
+		val = val >> shift;
+	ucontrol->value.enumerated.item[0] = val ^ invert;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_get_strobe);
+
+/**
+ * snd_soc_put_strobe - strobe put callback
+ * @kcontrol: mixer control
+ * @ucontrol: control element information
+ *
+ * Callback strobe a register bit to high then low (or the inverse)
+ * in one pass of a single mixer enum control.
+ *
+ * Returns 1 for success.
+ */
+int snd_soc_put_strobe(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+	struct soc_mixer_control *mc =
+		(struct soc_mixer_control *)kcontrol->private_value;
+	unsigned int reg = mc->reg;
+	unsigned int shift = mc->shift;
+	unsigned int mask = 1 << shift;
+	unsigned int invert = mc->invert != 0;
+	unsigned int strobe = ucontrol->value.enumerated.item[0] != 0;
+	unsigned int val1 = (strobe ^ invert) ? mask : 0;
+	unsigned int val2 = (strobe ^ invert) ? 0 : mask;
+	int err;
+
+	err = snd_soc_component_update_bits(component, reg, mask, val1);
+	if (err < 0)
+		return err;
+
+	return snd_soc_component_update_bits(component, reg, mask, val2);
+}
+EXPORT_SYMBOL_GPL(snd_soc_put_strobe);