Merge tag 'sound-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "We've received a fairly wide range of changes at this time, including
  for ALSA and ASoC core, but all of them are rather small changes.

  Here are some highlights:

  ALSA / ASoC Core:
   - Fixes of inconsistent locking around control API helpers
   - A few new control API functions and cleanups
   - Workarounds for potential UAFs by delayed kobj releases
   - Unified PCM copy ops with iov_iter
   - Continued efforts for ASoC API cleanups

  ASoC:
   - An adaptor to allow use of IIO DACs and ADCs in ASoC which pulls in
     some IIO changes
   - Create a library function for intlog10() and use it in the NAU8825
     driver
   - Convert drivers to use the more modern maple tree register cache
   - Lots of work on the SOF framework, AMD and Intel drivers, including
     a lot of cleanup and new device support
   - Standardization of the presentation of jacks from drivers
   - Provision of some generic sound card DT properties
   - Support for AMD Van Gogh, AMD machines with MAX98388 and NAU8821,
     AWInic AW88261, Cirrus Logic CS35L36 and CS42L43, various Intel
     platforms including AVS machines with ES8336 and RT5663, Mediatek
     MT7986, NXP i.MX93, RealTek RT1017 and StarFive JH7110

  Others:
   - New test coverage including ASoC and topology tests in KUnit; this
     also involves enabling UML builds of ALSA since that's the default
     KUnit test environment which pulls in the addition of some stubs to
     the driver
   - More enhancement of pcmtest driver
   - A few fixes / enhancements of MIDI 2.0 UMP core
   - Using PCI definitions in allover HD-audio code
   - Support for Cirrus CS35L56 and TI TAS2781 HD-audio sub-codecs
   - CS35L41 HD-audio sub-codec improvements
   - Continued emu10k1 improvements"

* tag 'sound-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (693 commits)
  ALSA: pcm: Fix missing fixup call in compat hw_refine ioctl
  ASoC: dwc: i2s: Fix unused functions
  ALSA: usb-audio: Don't try to submit URBs after disconnection
  ALSA: emu10k1: add separate documentation for E-MU cards
  ALSA: emu10k1: more documentation updates
  ALSA: emu10k1: de-duplicate audigy-mixer.rst vs. sb-live-mixer.rst
  ALSA: ump: Fix -Wformat-truncation warnings
  ALSA: hda: Add missing dependency on CONFIG_EFI for Cirrus/TI sub-codecs
  ALSA: doc: Fix missing backquote in midi-2.0.rst
  ALSA: hda/realtek: Add quirk for mute LEDs on HP ENVY x360 15-eu0xxx
  ALSA: hda/tas2781: Switch back to use struct i2c_driver's .probe()
  ASoC: soc-core.c: Do not error if a DAI link component is not found
  ASoC: codecs: Fix error code in aw88261_i2c_probe()
  ASoC: audio-graph-card.c: move audio_graph_parse_of()
  ASoC: cs42l43: Use new-style PM runtime macros
  ALSA: documentation: Add description for USB MIDI 2.0 gadget driver
  ALSA: ump: Don't create unused substreams for static blocks
  ALSA: ump: Fill group names for legacy rawmidi substreams
  ALSA: usb-audio: Attach legacy rawmidi after probing all UMP EPs
  ALSA: ac97: Fix possible error value of *rac97
  ...

35 files changed, 125 insertions, 243 deletions

diff --git a/drivers/firmware/cirrus/cs_dsp.c b/drivers/firmware/cirrus/cs_dsp.c
index 6a9aa97373d3..49b70c70dc69 100644
--- a/drivers/firmware/cirrus/cs_dsp.c
+++ b/drivers/firmware/cirrus/cs_dsp.c
@@ -978,7 +978,8 @@ static int cs_dsp_create_control(struct cs_dsp *dsp,
 		    ctl->alg_region.alg == alg_region->alg &&
 		    ctl->alg_region.type == alg_region->type) {
 			if ((!subname && !ctl->subname) ||
-			    (subname && !strncmp(ctl->subname, subname, ctl->subname_len))) {
+			    (subname && (ctl->subname_len == subname_len) &&
+			     !strncmp(ctl->subname, subname, ctl->subname_len))) {
 				if (!ctl->enabled)
 					ctl->enabled = 1;
 				return 0;
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index a488625773dc..25c9c71256d3 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -2615,9 +2615,13 @@ static int vc4_hdmi_audio_cpu_dai_probe(struct snd_soc_dai *dai)
 	return 0;
 }
 
+static const struct snd_soc_dai_ops vc4_snd_dai_ops = {
+	.probe  = vc4_hdmi_audio_cpu_dai_probe,
+};
+
 static struct snd_soc_dai_driver vc4_hdmi_audio_cpu_dai_drv = {
 	.name = "vc4-hdmi-cpu-dai",
-	.probe  = vc4_hdmi_audio_cpu_dai_probe,
+	.ops = &vc4_snd_dai_ops,
 	.playback = {
 		.stream_name = "Playback",
 		.channels_min = 1,
diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c
index 872fd5c24147..7a1f6713318a 100644
--- a/drivers/iio/inkern.c
+++ b/drivers/iio/inkern.c
@@ -5,9 +5,10 @@
  */
 #include <linux/err.h>
 #include <linux/export.h>
+#include <linux/minmax.h>
+#include <linux/mutex.h>
 #include <linux/property.h>
 #include <linux/slab.h>
-#include <linux/mutex.h>
 
 #include <linux/iio/iio.h>
 #include <linux/iio/iio-opaque.h>
@@ -849,15 +850,14 @@ static int iio_channel_read_max(struct iio_channel *chan,
 				int *val, int *val2, int *type,
 				enum iio_chan_info_enum info)
 {
-	int unused;
 	const int *vals;
 	int length;
 	int ret;
 
-	if (!val2)
-		val2 = &unused;
-
 	ret = iio_channel_read_avail(chan, &vals, type, &length, info);
+	if (ret < 0)
+		return ret;
+
 	switch (ret) {
 	case IIO_AVAIL_RANGE:
 		switch (*type) {
@@ -866,7 +866,8 @@ static int iio_channel_read_max(struct iio_channel *chan,
 			break;
 		default:
 			*val = vals[4];
-			*val2 = vals[5];
+			if (val2)
+				*val2 = vals[5];
 		}
 		return 0;
 
@@ -875,20 +876,16 @@ static int iio_channel_read_max(struct iio_channel *chan,
 			return -EINVAL;
 		switch (*type) {
 		case IIO_VAL_INT:
-			*val = vals[--length];
-			while (length) {
-				if (vals[--length] > *val)
-					*val = vals[length];
-			}
+			*val = max_array(vals, length);
 			break;
 		default:
-			/* FIXME: learn about max for other iio values */
+			/* TODO: learn about max for other iio values */
 			return -EINVAL;
 		}
 		return 0;
 
 	default:
-		return ret;
+		return -EINVAL;
 	}
 }
 
@@ -912,6 +909,69 @@ err_unlock:
 }
 EXPORT_SYMBOL_GPL(iio_read_max_channel_raw);
 
+static int iio_channel_read_min(struct iio_channel *chan,
+				int *val, int *val2, int *type,
+				enum iio_chan_info_enum info)
+{
+	const int *vals;
+	int length;
+	int ret;
+
+	ret = iio_channel_read_avail(chan, &vals, type, &length, info);
+	if (ret < 0)
+		return ret;
+
+	switch (ret) {
+	case IIO_AVAIL_RANGE:
+		switch (*type) {
+		case IIO_VAL_INT:
+			*val = vals[0];
+			break;
+		default:
+			*val = vals[0];
+			if (val2)
+				*val2 = vals[1];
+		}
+		return 0;
+
+	case IIO_AVAIL_LIST:
+		if (length <= 0)
+			return -EINVAL;
+		switch (*type) {
+		case IIO_VAL_INT:
+			*val = min_array(vals, length);
+			break;
+		default:
+			/* TODO: learn about min for other iio values */
+			return -EINVAL;
+		}
+		return 0;
+
+	default:
+		return -EINVAL;
+	}
+}
+
+int iio_read_min_channel_raw(struct iio_channel *chan, int *val)
+{
+	struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(chan->indio_dev);
+	int ret;
+	int type;
+
+	mutex_lock(&iio_dev_opaque->info_exist_lock);
+	if (!chan->indio_dev->info) {
+		ret = -ENODEV;
+		goto err_unlock;
+	}
+
+	ret = iio_channel_read_min(chan, val, NULL, &type, IIO_CHAN_INFO_RAW);
+err_unlock:
+	mutex_unlock(&iio_dev_opaque->info_exist_lock);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(iio_read_min_channel_raw);
+
 int iio_get_channel_type(struct iio_channel *chan, enum iio_chan_type *type)
 {
 	struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(chan->indio_dev);
diff --git a/drivers/media/dvb-core/Makefile b/drivers/media/dvb-core/Makefile
index 62b028ded9f7..1cb3ca67bed9 100644
--- a/drivers/media/dvb-core/Makefile
+++ b/drivers/media/dvb-core/Makefile
@@ -8,6 +8,6 @@ dvb-vb2-$(CONFIG_DVB_MMAP) := dvb_vb2.o
 
 dvb-core-objs := dvbdev.o dmxdev.o dvb_demux.o			\
 		 dvb_ca_en50221.o dvb_frontend.o		\
-		 $(dvb-net-y) dvb_ringbuffer.o $(dvb-vb2-y) dvb_math.o
+		 $(dvb-net-y) dvb_ringbuffer.o $(dvb-vb2-y)
 
 obj-$(CONFIG_DVB_CORE) += dvb-core.o
diff --git a/drivers/media/dvb-core/dvb_math.c b/drivers/media/dvb-core/dvb_math.c
deleted file mode 100644
index dc90564d7f34..000000000000
--- a/drivers/media/dvb-core/dvb_math.c
+++ /dev/null
@@ -1,141 +0,0 @@
-/*
- * dvb-math provides some complex fixed-point math
- * operations shared between the dvb related stuff
- *
- * Copyright (C) 2006 Christoph Pfister (christophpfister@gmail.com)
- *
- * This library is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation; either version 2.1 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License for more details.
- */
-
-#include <linux/bitops.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <asm/bug.h>
-#include <media/dvb_math.h>
-
-static const unsigned short logtable[256] = {
-	0x0000, 0x0171, 0x02e0, 0x044e, 0x05ba, 0x0725, 0x088e, 0x09f7,
-	0x0b5d, 0x0cc3, 0x0e27, 0x0f8a, 0x10eb, 0x124b, 0x13aa, 0x1508,
-	0x1664, 0x17bf, 0x1919, 0x1a71, 0x1bc8, 0x1d1e, 0x1e73, 0x1fc6,
-	0x2119, 0x226a, 0x23ba, 0x2508, 0x2656, 0x27a2, 0x28ed, 0x2a37,
-	0x2b80, 0x2cc8, 0x2e0f, 0x2f54, 0x3098, 0x31dc, 0x331e, 0x345f,
-	0x359f, 0x36de, 0x381b, 0x3958, 0x3a94, 0x3bce, 0x3d08, 0x3e41,
-	0x3f78, 0x40af, 0x41e4, 0x4319, 0x444c, 0x457f, 0x46b0, 0x47e1,
-	0x4910, 0x4a3f, 0x4b6c, 0x4c99, 0x4dc5, 0x4eef, 0x5019, 0x5142,
-	0x526a, 0x5391, 0x54b7, 0x55dc, 0x5700, 0x5824, 0x5946, 0x5a68,
-	0x5b89, 0x5ca8, 0x5dc7, 0x5ee5, 0x6003, 0x611f, 0x623a, 0x6355,
-	0x646f, 0x6588, 0x66a0, 0x67b7, 0x68ce, 0x69e4, 0x6af8, 0x6c0c,
-	0x6d20, 0x6e32, 0x6f44, 0x7055, 0x7165, 0x7274, 0x7383, 0x7490,
-	0x759d, 0x76aa, 0x77b5, 0x78c0, 0x79ca, 0x7ad3, 0x7bdb, 0x7ce3,
-	0x7dea, 0x7ef0, 0x7ff6, 0x80fb, 0x81ff, 0x8302, 0x8405, 0x8507,
-	0x8608, 0x8709, 0x8809, 0x8908, 0x8a06, 0x8b04, 0x8c01, 0x8cfe,
-	0x8dfa, 0x8ef5, 0x8fef, 0x90e9, 0x91e2, 0x92db, 0x93d2, 0x94ca,
-	0x95c0, 0x96b6, 0x97ab, 0x98a0, 0x9994, 0x9a87, 0x9b7a, 0x9c6c,
-	0x9d5e, 0x9e4f, 0x9f3f, 0xa02e, 0xa11e, 0xa20c, 0xa2fa, 0xa3e7,
-	0xa4d4, 0xa5c0, 0xa6ab, 0xa796, 0xa881, 0xa96a, 0xaa53, 0xab3c,
-	0xac24, 0xad0c, 0xadf2, 0xaed9, 0xafbe, 0xb0a4, 0xb188, 0xb26c,
-	0xb350, 0xb433, 0xb515, 0xb5f7, 0xb6d9, 0xb7ba, 0xb89a, 0xb97a,
-	0xba59, 0xbb38, 0xbc16, 0xbcf4, 0xbdd1, 0xbead, 0xbf8a, 0xc065,
-	0xc140, 0xc21b, 0xc2f5, 0xc3cf, 0xc4a8, 0xc580, 0xc658, 0xc730,
-	0xc807, 0xc8de, 0xc9b4, 0xca8a, 0xcb5f, 0xcc34, 0xcd08, 0xcddc,
-	0xceaf, 0xcf82, 0xd054, 0xd126, 0xd1f7, 0xd2c8, 0xd399, 0xd469,
-	0xd538, 0xd607, 0xd6d6, 0xd7a4, 0xd872, 0xd93f, 0xda0c, 0xdad9,
-	0xdba5, 0xdc70, 0xdd3b, 0xde06, 0xded0, 0xdf9a, 0xe063, 0xe12c,
-	0xe1f5, 0xe2bd, 0xe385, 0xe44c, 0xe513, 0xe5d9, 0xe69f, 0xe765,
-	0xe82a, 0xe8ef, 0xe9b3, 0xea77, 0xeb3b, 0xebfe, 0xecc1, 0xed83,
-	0xee45, 0xef06, 0xefc8, 0xf088, 0xf149, 0xf209, 0xf2c8, 0xf387,
-	0xf446, 0xf505, 0xf5c3, 0xf680, 0xf73e, 0xf7fb, 0xf8b7, 0xf973,
-	0xfa2f, 0xfaea, 0xfba5, 0xfc60, 0xfd1a, 0xfdd4, 0xfe8e, 0xff47
-};
-
-unsigned int intlog2(u32 value)
-{
-	/**
-	 *	returns: log2(value) * 2^24
-	 *	wrong result if value = 0 (log2(0) is undefined)
-	 */
-	unsigned int msb;
-	unsigned int logentry;
-	unsigned int significand;
-	unsigned int interpolation;
-
-	if (unlikely(value == 0)) {
-		WARN_ON(1);
-		return 0;
-	}
-
-	/* first detect the msb (count begins at 0) */
-	msb = fls(value) - 1;
-
-	/**
-	 *	now we use a logtable after the following method:
-	 *
-	 *	log2(2^x * y) * 2^24 = x * 2^24 + log2(y) * 2^24
-	 *	where x = msb and therefore 1 <= y < 2
-	 *	first y is determined by shifting the value left
-	 *	so that msb is bit 31
-	 *		0x00231f56 -> 0x8C7D5800
-	 *	the result is y * 2^31 -> "significand"
-	 *	then the highest 9 bits are used for a table lookup
-	 *	the highest bit is discarded because it's always set
-	 *	the highest nine bits in our example are 100011000
-	 *	so we would use the entry 0x18
-	 */
-	significand = value << (31 - msb);
-	logentry = (significand >> 23) & 0xff;
-
-	/**
-	 *	last step we do is interpolation because of the
-	 *	limitations of the log table the error is that part of
-	 *	the significand which isn't used for lookup then we
-	 *	compute the ratio between the error and the next table entry
-	 *	and interpolate it between the log table entry used and the
-	 *	next one the biggest error possible is 0x7fffff
-	 *	(in our example it's 0x7D5800)
-	 *	needed value for next table entry is 0x800000
-	 *	so the interpolation is
-	 *	(error / 0x800000) * (logtable_next - logtable_current)
-	 *	in the implementation the division is moved to the end for
-	 *	better accuracy there is also an overflow correction if
-	 *	logtable_next is 256
-	 */
-	interpolation = ((significand & 0x7fffff) *
-			((logtable[(logentry + 1) & 0xff] -
-			  logtable[logentry]) & 0xffff)) >> 15;
-
-	/* now we return the result */
-	return ((msb << 24) + (logtable[logentry] << 8) + interpolation);
-}
-EXPORT_SYMBOL(intlog2);
-
-unsigned int intlog10(u32 value)
-{
-	/**
-	 *	returns: log10(value) * 2^24
-	 *	wrong result if value = 0 (log10(0) is undefined)
-	 */
-	u64 log;
-
-	if (unlikely(value == 0)) {
-		WARN_ON(1);
-		return 0;
-	}
-
-	log = intlog2(value);
-
-	/**
-	 *	we use the following method:
-	 *	log10(x) = log2(x) * log10(2)
-	 */
-
-	return (log * 646456993) >> 31;
-}
-EXPORT_SYMBOL(intlog10);
diff --git a/drivers/media/dvb-frontends/af9013_priv.h b/drivers/media/dvb-frontends/af9013_priv.h
index 3b9b9424fe1a..bba7a9693a23 100644
--- a/drivers/media/dvb-frontends/af9013_priv.h
+++ b/drivers/media/dvb-frontends/af9013_priv.h
@@ -12,7 +12,7 @@
 #define AF9013_PRIV_H
 
 #include <media/dvb_frontend.h>
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 #include "af9013.h"
 #include <linux/firmware.h>
 #include <linux/i2c-mux.h>
diff --git a/drivers/media/dvb-frontends/af9033_priv.h b/drivers/media/dvb-frontends/af9033_priv.h
index 0e64da0cdeab..7560da75ef00 100644
--- a/drivers/media/dvb-frontends/af9033_priv.h
+++ b/drivers/media/dvb-frontends/af9033_priv.h
@@ -14,7 +14,7 @@
 #include <linux/math64.h>
 #include <linux/regmap.h>
 #include <linux/kernel.h>
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 
 struct reg_val {
 	u32 reg;
diff --git a/drivers/media/dvb-frontends/cxd2820r_priv.h b/drivers/media/dvb-frontends/cxd2820r_priv.h
index 9b4d9cf8563d..605320bbc12b 100644
--- a/drivers/media/dvb-frontends/cxd2820r_priv.h
+++ b/drivers/media/dvb-frontends/cxd2820r_priv.h
@@ -11,7 +11,7 @@
 
 #include <linux/dvb/version.h>
 #include <media/dvb_frontend.h>
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 #include "cxd2820r.h"
 #include <linux/gpio/driver.h> /* For gpio_chip */
 #include <linux/math64.h>
diff --git a/drivers/media/dvb-frontends/cxd2841er.c b/drivers/media/dvb-frontends/cxd2841er.c
index 5431f922f55e..ef403a9fb753 100644
--- a/drivers/media/dvb-frontends/cxd2841er.c
+++ b/drivers/media/dvb-frontends/cxd2841er.c
@@ -22,7 +22,7 @@
 #include <linux/dynamic_debug.h>
 #include <linux/kernel.h>
 
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 #include <media/dvb_frontend.h>
 #include "cxd2841er.h"
 #include "cxd2841er_priv.h"
diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt2_mon.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt2_mon.c
index 604580bf7cf7..4e173dd87ecf 100644
--- a/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt2_mon.c
+++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt2_mon.c
@@ -11,7 +11,7 @@
 #include "cxd2880_tnrdmd_dvbt2.h"
 #include "cxd2880_tnrdmd_dvbt2_mon.h"
 
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 
 static const int ref_dbm_1000[4][8] = {
 	{-96000, -95000, -94000, -93000, -92000, -92000, -98000, -97000},
diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt_mon.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt_mon.c
index fedc3b4a2fa0..86d5a1e4022a 100644
--- a/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt_mon.c
+++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt_mon.c
@@ -11,7 +11,7 @@
 #include "cxd2880_tnrdmd_dvbt.h"
 #include "cxd2880_tnrdmd_dvbt_mon.h"
 
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 
 static const int ref_dbm_1000[3][5] = {
 	{-93000, -91000, -90000, -89000, -88000},
diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_top.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_top.c
index d5b1b3788e39..f67b6d24b8d4 100644
--- a/drivers/media/dvb-frontends/cxd2880/cxd2880_top.c
+++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_top.c
@@ -11,7 +11,7 @@
 #include <linux/spi/spi.h>
 
 #include <media/dvb_frontend.h>
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 
 #include "cxd2880.h"
 #include "cxd2880_tnrdmd_mon.h"
diff --git a/drivers/media/dvb-frontends/dib7000p.c b/drivers/media/dvb-frontends/dib7000p.c
index a90d2f51868f..b791e687d2e2 100644
--- a/drivers/media/dvb-frontends/dib7000p.c
+++ b/drivers/media/dvb-frontends/dib7000p.c
@@ -13,7 +13,7 @@
 #include <linux/mutex.h>
 #include <asm/div64.h>
 
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 #include <media/dvb_frontend.h>
 
 #include "dib7000p.h"
diff --git a/drivers/media/dvb-frontends/dib8000.c b/drivers/media/dvb-frontends/dib8000.c
index fe19d127abb3..2abda7d1cb6e 100644
--- a/drivers/media/dvb-frontends/dib8000.c
+++ b/drivers/media/dvb-frontends/dib8000.c
@@ -13,7 +13,7 @@
 #include <linux/mutex.h>
 #include <asm/div64.h>
 
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 
 #include <media/dvb_frontend.h>
 
diff --git a/drivers/media/dvb-frontends/dib9000.c b/drivers/media/dvb-frontends/dib9000.c
index 914ca820c174..1c57587a917a 100644
--- a/drivers/media/dvb-frontends/dib9000.c
+++ b/drivers/media/dvb-frontends/dib9000.c
@@ -11,7 +11,7 @@
 #include <linux/i2c.h>
 #include <linux/mutex.h>
 
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 #include <media/dvb_frontend.h>
 
 #include "dib9000.h"
diff --git a/drivers/media/dvb-frontends/drxk_hard.c b/drivers/media/dvb-frontends/drxk_hard.c
index 3301ef75d441..6ad4f202f1bf 100644
--- a/drivers/media/dvb-frontends/drxk_hard.c
+++ b/drivers/media/dvb-frontends/drxk_hard.c
@@ -20,7 +20,7 @@
 #include <media/dvb_frontend.h>
 #include "drxk.h"
 #include "drxk_hard.h"
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 
 static int power_down_dvbt(struct drxk_state *state, bool set_power_mode);
 static int power_down_qam(struct drxk_state *state);
diff --git a/drivers/media/dvb-frontends/lgdt3305.c b/drivers/media/dvb-frontends/lgdt3305.c
index 62d743988919..c15d3735d34c 100644
--- a/drivers/media/dvb-frontends/lgdt3305.c
+++ b/drivers/media/dvb-frontends/lgdt3305.c
@@ -10,7 +10,7 @@
 #include <asm/div64.h>
 #include <linux/dvb/frontend.h>
 #include <linux/slab.h>
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 #include "lgdt3305.h"
 
 static int debug;
diff --git a/drivers/media/dvb-frontends/lgdt3306a.c b/drivers/media/dvb-frontends/lgdt3306a.c
index 70258884126b..3c6650f6e9a3 100644
--- a/drivers/media/dvb-frontends/lgdt3306a.c
+++ b/drivers/media/dvb-frontends/lgdt3306a.c
@@ -12,7 +12,7 @@
 #include <asm/div64.h>
 #include <linux/kernel.h>
 #include <linux/dvb/frontend.h>
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 #include "lgdt3306a.h"
 #include <linux/i2c-mux.h>
 
diff --git a/drivers/media/dvb-frontends/lgdt330x.c b/drivers/media/dvb-frontends/lgdt330x.c
index 83565209c3b1..97a10996c7fa 100644
--- a/drivers/media/dvb-frontends/lgdt330x.c
+++ b/drivers/media/dvb-frontends/lgdt330x.c
@@ -28,7 +28,7 @@
 #include <asm/byteorder.h>
 
 #include <media/dvb_frontend.h>
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 #include "lgdt330x_priv.h"
 #include "lgdt330x.h"
 
diff --git a/drivers/media/dvb-frontends/m88ds3103_priv.h b/drivers/media/dvb-frontends/m88ds3103_priv.h
index aa5306f40201..594ad9cbc2cc 100644
--- a/drivers/media/dvb-frontends/m88ds3103_priv.h
+++ b/drivers/media/dvb-frontends/m88ds3103_priv.h
@@ -10,7 +10,7 @@
 
 #include <media/dvb_frontend.h>
 #include "m88ds3103.h"
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 #include <linux/firmware.h>
 #include <linux/i2c-mux.h>
 #include <linux/regmap.h>
diff --git a/drivers/media/dvb-frontends/mn88443x.c b/drivers/media/dvb-frontends/mn88443x.c
index 2ce5692bc22c..db2921c736af 100644
--- a/drivers/media/dvb-frontends/mn88443x.c
+++ b/drivers/media/dvb-frontends/mn88443x.c
@@ -10,7 +10,7 @@
 #include <linux/gpio/consumer.h>
 #include <linux/of_device.h>
 #include <linux/regmap.h>
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 
 #include "mn88443x.h"
 
diff --git a/drivers/media/dvb-frontends/mn88472_priv.h b/drivers/media/dvb-frontends/mn88472_priv.h
index 337562723f88..41f14bd67bfd 100644
--- a/drivers/media/dvb-frontends/mn88472_priv.h
+++ b/drivers/media/dvb-frontends/mn88472_priv.h
@@ -9,7 +9,7 @@
 #define MN88472_PRIV_H
 
 #include <media/dvb_frontend.h>
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 #include "mn88472.h"
 #include <linux/firmware.h>
 #include <linux/regmap.h>
diff --git a/drivers/media/dvb-frontends/mn88473_priv.h b/drivers/media/dvb-frontends/mn88473_priv.h
index eca7f4e2b769..e9daaacfa22f 100644
--- a/drivers/media/dvb-frontends/mn88473_priv.h
+++ b/drivers/media/dvb-frontends/mn88473_priv.h
@@ -9,7 +9,7 @@
 #define MN88473_PRIV_H
 
 #include <media/dvb_frontend.h>
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 #include "mn88473.h"
 #include <linux/math64.h>
 #include <linux/firmware.h>
diff --git a/drivers/media/dvb-frontends/or51132.c b/drivers/media/dvb-frontends/or51132.c
index 24de1b115158..355f3598627b 100644
--- a/drivers/media/dvb-frontends/or51132.c
+++ b/drivers/media/dvb-frontends/or51132.c
@@ -27,7 +27,7 @@
 #include <linux/slab.h>
 #include <asm/byteorder.h>
 
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 #include <media/dvb_frontend.h>
 #include "or51132.h"
 
diff --git a/drivers/media/dvb-frontends/or51211.c b/drivers/media/dvb-frontends/or51211.c
index ddcaea5c9941..ae732dc5116e 100644
--- a/drivers/media/dvb-frontends/or51211.c
+++ b/drivers/media/dvb-frontends/or51211.c
@@ -26,7 +26,7 @@
 #include <linux/slab.h>
 #include <asm/byteorder.h>
 
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 #include <media/dvb_frontend.h>
 #include "or51211.h"
 
diff --git a/drivers/media/dvb-frontends/rtl2830_priv.h b/drivers/media/dvb-frontends/rtl2830_priv.h
index fae78ed78522..ae1fc24a4d84 100644
--- a/drivers/media/dvb-frontends/rtl2830_priv.h
+++ b/drivers/media/dvb-frontends/rtl2830_priv.h
@@ -9,7 +9,7 @@
 #define RTL2830_PRIV_H
 
 #include <media/dvb_frontend.h>
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 #include "rtl2830.h"
 #include <linux/i2c-mux.h>
 #include <linux/math64.h>
diff --git a/drivers/media/dvb-frontends/rtl2832_priv.h b/drivers/media/dvb-frontends/rtl2832_priv.h
index 5f79f95b9475..f11ba038d5f0 100644
--- a/drivers/media/dvb-frontends/rtl2832_priv.h
+++ b/drivers/media/dvb-frontends/rtl2832_priv.h
@@ -14,7 +14,7 @@
 #include <linux/bitops.h>
 
 #include <media/dvb_frontend.h>
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 #include "rtl2832.h"
 
 struct rtl2832_dev {
diff --git a/drivers/media/dvb-frontends/si2165.c b/drivers/media/dvb-frontends/si2165.c
index 72810efd1a96..434d003bf397 100644
--- a/drivers/media/dvb-frontends/si2165.c
+++ b/drivers/media/dvb-frontends/si2165.c
@@ -19,7 +19,7 @@
 #include <linux/regmap.h>
 
 #include <media/dvb_frontend.h>
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 #include "si2165_priv.h"
 #include "si2165.h"
 
diff --git a/drivers/media/dvb-frontends/stv0367.c b/drivers/media/dvb-frontends/stv0367.c
index 95e376f23506..a93f40617469 100644
--- a/drivers/media/dvb-frontends/stv0367.c
+++ b/drivers/media/dvb-frontends/stv0367.c
@@ -15,7 +15,7 @@
 #include <linux/slab.h>
 #include <linux/i2c.h>
 
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 
 #include "stv0367.h"
 #include "stv0367_defs.h"
diff --git a/drivers/media/dvb-frontends/tc90522.c b/drivers/media/dvb-frontends/tc90522.c
index 879f028f9682..1f8cbf45554a 100644
--- a/drivers/media/dvb-frontends/tc90522.c
+++ b/drivers/media/dvb-frontends/tc90522.c
@@ -21,7 +21,7 @@
 #include <linux/kernel.h>
 #include <linux/math64.h>
 #include <linux/dvb/frontend.h>
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 #include "tc90522.h"
 
 #define TC90522_I2C_THRU_REG 0xfe
diff --git a/drivers/media/dvb-frontends/tda10048.c b/drivers/media/dvb-frontends/tda10048.c
index 0b3f6999515e..3cb4e5270e4f 100644
--- a/drivers/media/dvb-frontends/tda10048.c
+++ b/drivers/media/dvb-frontends/tda10048.c
@@ -16,7 +16,7 @@
 #include <linux/math64.h>
 #include <asm/div64.h>
 #include <media/dvb_frontend.h>
-#include <media/dvb_math.h>
+#include <linux/int_log.h>
 #include "tda10048.h"
 
 #define TDA10048_DEFAULT_FIRMWARE "dvb-fe-tda10048-1.0.fw"
diff --git a/drivers/media/pci/solo6x10/solo6x10-g723.c b/drivers/media/pci/solo6x10/solo6x10-g723.c
index 6cebad665565..1db9f40ee0c0 100644
--- a/drivers/media/pci/solo6x10/solo6x10-g723.c
+++ b/drivers/media/pci/solo6x10/solo6x10-g723.c
@@ -204,9 +204,9 @@ static snd_pcm_uframes_t snd_solo_pcm_pointer(struct snd_pcm_substream *ss)
 	return idx * G723_FRAMES_PER_PAGE;
 }
 
-static int snd_solo_pcm_copy_user(struct snd_pcm_substream *ss, int channel,
-				  unsigned long pos, void __user *dst,
-				  unsigned long count)
+static int snd_solo_pcm_copy(struct snd_pcm_substream *ss, int channel,
+			     unsigned long pos, struct iov_iter *dst,
+			     unsigned long count)
 {
 	struct solo_snd_pcm *solo_pcm = snd_pcm_substream_chip(ss);
 	struct solo_dev *solo_dev = solo_pcm->solo_dev;
@@ -223,35 +223,9 @@ static int snd_solo_pcm_copy_user(struct snd_pcm_substream *ss, int channel,
 		if (err)
 			return err;
 
-		if (copy_to_user(dst, solo_pcm->g723_buf, G723_PERIOD_BYTES))
+		if (copy_to_iter(solo_pcm->g723_buf, G723_PERIOD_BYTES, dst) !=
+		    G723_PERIOD_BYTES)
 			return -EFAULT;
-		dst += G723_PERIOD_BYTES;
-	}
-
-	return 0;
-}
-
-static int snd_solo_pcm_copy_kernel(struct snd_pcm_substream *ss, int channel,
-				    unsigned long pos, void *dst,
-				    unsigned long count)
-{
-	struct solo_snd_pcm *solo_pcm = snd_pcm_substream_chip(ss);
-	struct solo_dev *solo_dev = solo_pcm->solo_dev;
-	int err, i;
-
-	for (i = 0; i < (count / G723_FRAMES_PER_PAGE); i++) {
-		int page = (pos / G723_FRAMES_PER_PAGE) + i;
-
-		err = solo_p2m_dma_t(solo_dev, 0, solo_pcm->g723_dma,
-				     SOLO_G723_EXT_ADDR(solo_dev) +
-				     (page * G723_PERIOD_BLOCK) +
-				     (ss->number * G723_PERIOD_BYTES),
-				     G723_PERIOD_BYTES, 0, 0);
-		if (err)
-			return err;
-
-		memcpy(dst, solo_pcm->g723_buf, G723_PERIOD_BYTES);
-		dst += G723_PERIOD_BYTES;
 	}
 
 	return 0;
@@ -263,8 +237,7 @@ static const struct snd_pcm_ops snd_solo_pcm_ops = {
 	.prepare = snd_solo_pcm_prepare,
 	.trigger = snd_solo_pcm_trigger,
 	.pointer = snd_solo_pcm_pointer,
-	.copy_user = snd_solo_pcm_copy_user,
-	.copy_kernel = snd_solo_pcm_copy_kernel,
+	.copy = snd_solo_pcm_copy,
 };
 
 static int snd_solo_capture_volume_info(struct snd_kcontrol *kcontrol,
diff --git a/drivers/staging/greybus/audio_codec.c b/drivers/staging/greybus/audio_codec.c
index 72ace74ea605..2f05e761fb9a 100644
--- a/drivers/staging/greybus/audio_codec.c
+++ b/drivers/staging/greybus/audio_codec.c
@@ -807,7 +807,6 @@ int gbaudio_register_module(struct gbaudio_module_info *module)
 {
 	int ret;
 	struct snd_soc_component *comp;
-	struct snd_card *card;
 	struct gbaudio_jack *jack = NULL;
 
 	if (!gbcodec) {
@@ -816,21 +815,20 @@ int gbaudio_register_module(struct gbaudio_module_info *module)
 	}
 
 	comp = gbcodec->component;
-	card = comp->card->snd_card;
 
-	down_write(&card->controls_rwsem);
+	mutex_lock(&gbcodec->register_mutex);
 
 	if (module->num_dais) {
 		dev_err(gbcodec->dev,
 			"%d:DAIs not supported via gbcodec driver\n",
 			module->num_dais);
-		up_write(&card->controls_rwsem);
+		mutex_unlock(&gbcodec->register_mutex);
 		return -EINVAL;
 	}
 
 	ret = gbaudio_init_jack(module, comp->card);
 	if (ret) {
-		up_write(&card->controls_rwsem);
+		mutex_unlock(&gbcodec->register_mutex);
 		return ret;
 	}
 
@@ -867,7 +865,7 @@ int gbaudio_register_module(struct gbaudio_module_info *module)
 		ret = snd_soc_dapm_new_widgets(comp->card);
 	dev_dbg(comp->dev, "Registered %s module\n", module->name);
 
-	up_write(&card->controls_rwsem);
+	mutex_unlock(&gbcodec->register_mutex);
 	return ret;
 }
 EXPORT_SYMBOL(gbaudio_register_module);
@@ -935,13 +933,12 @@ static void gbaudio_codec_cleanup(struct gbaudio_module_info *module)
 void gbaudio_unregister_module(struct gbaudio_module_info *module)
 {
 	struct snd_soc_component *comp = gbcodec->component;
-	struct snd_card *card = comp->card->snd_card;
 	struct gbaudio_jack *jack, *n;
 	int mask;
 
 	dev_dbg(comp->dev, "Unregister %s module\n", module->name);
 
-	down_write(&card->controls_rwsem);
+	mutex_lock(&gbcodec->register_mutex);
 	mutex_lock(&gbcodec->lock);
 	gbaudio_codec_cleanup(module);
 	list_del(&module->list);
@@ -978,10 +975,8 @@ void gbaudio_unregister_module(struct gbaudio_module_info *module)
 		dev_dbg(comp->dev, "Removing %d controls\n",
 			module->num_controls);
 		/* release control semaphore */
-		up_write(&card->controls_rwsem);
 		gbaudio_remove_component_controls(comp, module->controls,
 						  module->num_controls);
-		down_write(&card->controls_rwsem);
 	}
 	if (module->dapm_widgets) {
 		dev_dbg(comp->dev, "Removing %d widgets\n",
@@ -992,7 +987,7 @@ void gbaudio_unregister_module(struct gbaudio_module_info *module)
 
 	dev_dbg(comp->dev, "Unregistered %s module\n", module->name);
 
-	up_write(&card->controls_rwsem);
+	mutex_unlock(&gbcodec->register_mutex);
 }
 EXPORT_SYMBOL(gbaudio_unregister_module);
 
@@ -1012,6 +1007,7 @@ static int gbcodec_probe(struct snd_soc_component *comp)
 	info->dev = comp->dev;
 	INIT_LIST_HEAD(&info->module_list);
 	mutex_init(&info->lock);
+	mutex_init(&info->register_mutex);
 	INIT_LIST_HEAD(&info->dai_list);
 
 	/* init dai_list used to maintain runtime stream info */
diff --git a/drivers/staging/greybus/audio_codec.h b/drivers/staging/greybus/audio_codec.h
index ce15e800e607..f3f7a7ec6be4 100644
--- a/drivers/staging/greybus/audio_codec.h
+++ b/drivers/staging/greybus/audio_codec.h
@@ -71,6 +71,7 @@ struct gbaudio_codec_info {
 	/* to maintain runtime stream params for each DAI */
 	struct list_head dai_list;
 	struct mutex lock;
+	struct mutex register_mutex;
 };
 
 struct gbaudio_widget {
diff --git a/drivers/staging/greybus/audio_helper.c b/drivers/staging/greybus/audio_helper.c
index 223987616e07..97ce5b9ad7fd 100644
--- a/drivers/staging/greybus/audio_helper.c
+++ b/drivers/staging/greybus/audio_helper.c
@@ -149,7 +149,6 @@ static int gbaudio_remove_controls(struct snd_card *card, struct device *dev,
 	for (i = 0; i < num_controls; i++) {
 		const struct snd_kcontrol_new *control = &controls[i];
 		struct snd_ctl_elem_id id;
-		struct snd_kcontrol *kctl;
 
 		if (prefix)
 			snprintf(id.name, sizeof(id.name), "%s %s", prefix,
@@ -161,17 +160,10 @@ static int gbaudio_remove_controls(struct snd_card *card, struct device *dev,
 		id.device = control->device;
 		id.subdevice = control->subdevice;
 		id.index = control->index;
-		kctl = snd_ctl_find_id(card, &id);
-		if (!kctl) {
-			dev_err(dev, "Failed to find %s\n", control->name);
-			continue;
-		}
-		err = snd_ctl_remove(card, kctl);
-		if (err < 0) {
+		err = snd_ctl_remove_id(card, &id);
+		if (err < 0)
 			dev_err(dev, "%d: Failed to remove %s\n", err,
 				control->name);
-			continue;
-		}
 	}
 	return 0;
 }
@@ -181,11 +173,7 @@ int gbaudio_remove_component_controls(struct snd_soc_component *component,
 				      unsigned int num_controls)
 {
 	struct snd_card *card = component->card->snd_card;
-	int err;
 
-	down_write(&card->controls_rwsem);
-	err = gbaudio_remove_controls(card, component->dev, controls,
-				      num_controls, component->name_prefix);
-	up_write(&card->controls_rwsem);
-	return err;
+	return gbaudio_remove_controls(card, component->dev, controls,
+				       num_controls, component->name_prefix);
 }