Merge tag 'sound-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "The major changes in the core API side in this cycle are the still
  on-going ASoC componentization works. Other than that, only few small
  changes such as 20bit PCM format support are found.

  Meanwhile the rest majority of changes are for ASoC drivers:

   - Large cleanups of some of the TI CODEC drivers

   - Continued work on Intel ASoC stuff for new quirks, ACPI GPIO
     handling, Kconfigs and lots of cleanups

   - Refactoring of the Freescale SSI driver, as preliminary work for
     the upcoming changes

   - Work on ST DFSDM driver, including the required IIO patches

   - New drivers for Allwinner A83T, Maxim MAX89373, SocioNext UiniPhier
     EVEA Tempo Semiconductor TSCS42xx and TI PCM816x, TAS5722 and
     TAS6424 devices

   - Removal of dead codes for SN95031 and board drivers

  Last but not least, a few HD-audio and USB-audio quirks are included
  as usual, too"

* tag 'sound-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (303 commits)
  ALSA: hda - Reduce the suspend time consumption for ALC256
  ASoC: use seq_file to dump the contents of dai_list,platform_list and codec_list
  ASoC: soc-core: add missing EXPORT_SYMBOL_GPL() for snd_soc_rtdcom_lookup
  IIO: ADC: stm32-dfsdm: remove unused variable again
  ASoC: bcm2835: fix hw_params error when device is in prepared state
  ASoC: mxs-sgtl5000: Do not print error on probe deferral
  ASoC: sgtl5000: Do not print error on probe deferral
  ASoC: Intel: remove select on non-existing SND_SOC_INTEL_COMMON
  ALSA: usb-audio: Support changing input on Sound Blaster E1
  ASoC: Intel: remove second duplicated assignment to pointer 'res'
  ALSA: hda/realtek - update ALC215 depop optimize
  ALSA: hda/realtek - Support headset mode for ALC215/ALC285/ALC289
  ALSA: pcm: Fix trailing semicolon
  ASoC: add Component level .read/.write
  ASoC: cx20442: fix regression by adding back .read/.write
  ASoC: uda1380: fix regression by adding back .read/.write
  ASoC: tlv320dac33: fix regression by adding back .read/.write
  ALSA: hda - Use IS_REACHABLE() for dependency on input
  IIO: ADC: stm32-dfsdm: fix static check warning
  IIO: ADC: stm32-dfsdm: code optimization
  ...

7 files changed, 110 insertions, 30 deletions

diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index dc1ebfeeb5ec..d918f1ea84e6 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -640,6 +640,12 @@ static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv)
         return false;
 }
 
+static inline const char *
+acpi_dev_get_first_match_name(const char *hid, const char *uid, s64 hrv)
+{
+        return NULL;
+}
+
 static inline bool is_acpi_node(struct fwnode_handle *fwnode)
 {
         return false;
diff --git a/include/linux/iio/adc/stm32-dfsdm-adc.h b/include/linux/iio/adc/stm32-dfsdm-adc.h
new file mode 100644
index 000000000000..e7dc7a542a4e
--- /dev/null
+++ b/include/linux/iio/adc/stm32-dfsdm-adc.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * This file discribe the STM32 DFSDM IIO driver API for audio part
+ *
+ * Copyright (C) 2017, STMicroelectronics - All Rights Reserved
+ * Author(s): Arnaud Pouliquen <arnaud.pouliquen@st.com>.
+ */
+
+#ifndef STM32_DFSDM_ADC_H
+#define STM32_DFSDM_ADC_H
+
+int stm32_dfsdm_get_buff_cb(struct iio_dev *iio_dev,
+                            int (*cb)(const void *data, size_t size,
+                                      void *private),
+                            void *private);
+int stm32_dfsdm_release_buff_cb(struct iio_dev *iio_dev);
+
+#endif
diff --git a/include/linux/iio/consumer.h b/include/linux/iio/consumer.h
index 5e347a9805fd..9887f4f8e2a8 100644
--- a/include/linux/iio/consumer.h
+++ b/include/linux/iio/consumer.h
@@ -134,6 +134,17 @@ struct iio_cb_buffer *iio_channel_get_all_cb(struct device *dev,
                                                        void *private),
                                              void *private);
 /**
+ * iio_channel_cb_set_buffer_watermark() - set the buffer watermark.
+ * @cb_buffer:          The callback buffer from whom we want the channel
+ *                      information.
+ * @watermark: buffer watermark in bytes.
+ *
+ * This function allows to configure the buffer watermark.
+ */
+int iio_channel_cb_set_buffer_watermark(struct iio_cb_buffer *cb_buffer,
+                                        size_t watermark);
+
+/**
  * iio_channel_release_all_cb() - release and unregister the callback.
  * @cb_buffer:          The callback buffer that was allocated.
  */
@@ -216,6 +227,32 @@ int iio_read_channel_average_raw(struct iio_channel *chan, int *val);
 int iio_read_channel_processed(struct iio_channel *chan, int *val);
 
 /**
+ * iio_write_channel_attribute() - Write values to the device attribute.
+ * @chan:       The channel being queried.
+ * @val:        Value being written.
+ * @val2:       Value being written.val2 use depends on attribute type.
+ * @attribute:  info attribute to be read.
+ *
+ * Returns an error code or 0.
+ */
+int iio_write_channel_attribute(struct iio_channel *chan, int val,
+                                int val2, enum iio_chan_info_enum attribute);
+
+/**
+ * iio_read_channel_attribute() - Read values from the device attribute.
+ * @chan:       The channel being queried.
+ * @val:        Value being written.
+ * @val2:       Value being written.Val2 use depends on attribute type.
+ * @attribute:  info attribute to be written.
+ *
+ * Returns an error code if failed. Else returns a description of what is in val
+ * and val2, such as IIO_VAL_INT_PLUS_MICRO telling us we have a value of val
+ * + val2/1e6
+ */
+int iio_read_channel_attribute(struct iio_channel *chan, int *val,
+                               int *val2, enum iio_chan_info_enum attribute);
+
+/**
  * iio_write_channel_raw() - write to a given channel
  * @chan:               The channel being queried.
  * @val:                Value being written.
diff --git a/include/linux/iio/hw-consumer.h b/include/linux/iio/hw-consumer.h
new file mode 100644
index 000000000000..44d48bb1d39f
--- /dev/null
+++ b/include/linux/iio/hw-consumer.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Industrial I/O in kernel hardware consumer interface
+ *
+ * Copyright 2017 Analog Devices Inc.
+ *  Author: Lars-Peter Clausen <lars@metafoo.de>
+ */
+
+#ifndef LINUX_IIO_HW_CONSUMER_H
+#define LINUX_IIO_HW_CONSUMER_H
+
+struct iio_hw_consumer;
+
+struct iio_hw_consumer *iio_hw_consumer_alloc(struct device *dev);
+void iio_hw_consumer_free(struct iio_hw_consumer *hwc);
+struct iio_hw_consumer *devm_iio_hw_consumer_alloc(struct device *dev);
+void devm_iio_hw_consumer_free(struct device *dev, struct iio_hw_consumer *hwc);
+int iio_hw_consumer_enable(struct iio_hw_consumer *hwc);
+void iio_hw_consumer_disable(struct iio_hw_consumer *hwc);
+
+#endif
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index 20b61347ea58..f12a61be1ede 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -20,34 +20,6 @@
  * Currently assumes nano seconds.
  */
 
-enum iio_chan_info_enum {
-        IIO_CHAN_INFO_RAW = 0,
-        IIO_CHAN_INFO_PROCESSED,
-        IIO_CHAN_INFO_SCALE,
-        IIO_CHAN_INFO_OFFSET,
-        IIO_CHAN_INFO_CALIBSCALE,
-        IIO_CHAN_INFO_CALIBBIAS,
-        IIO_CHAN_INFO_PEAK,
-        IIO_CHAN_INFO_PEAK_SCALE,
-        IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW,
-        IIO_CHAN_INFO_AVERAGE_RAW,
-        IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY,
-        IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY,
-        IIO_CHAN_INFO_SAMP_FREQ,
-        IIO_CHAN_INFO_FREQUENCY,
-        IIO_CHAN_INFO_PHASE,
-        IIO_CHAN_INFO_HARDWAREGAIN,
-        IIO_CHAN_INFO_HYSTERESIS,
-        IIO_CHAN_INFO_INT_TIME,
-        IIO_CHAN_INFO_ENABLE,
-        IIO_CHAN_INFO_CALIBHEIGHT,
-        IIO_CHAN_INFO_CALIBWEIGHT,
-        IIO_CHAN_INFO_DEBOUNCE_COUNT,
-        IIO_CHAN_INFO_DEBOUNCE_TIME,
-        IIO_CHAN_INFO_CALIBEMISSIVITY,
-        IIO_CHAN_INFO_OVERSAMPLING_RATIO,
-};
-
 enum iio_shared_by {
         IIO_SEPARATE,
         IIO_SHARED_BY_TYPE,
diff --git a/include/linux/iio/types.h b/include/linux/iio/types.h
index 2aa7b6384d64..6eb3d683ef62 100644
--- a/include/linux/iio/types.h
+++ b/include/linux/iio/types.h
@@ -34,4 +34,32 @@ enum iio_available_type {
         IIO_AVAIL_RANGE,
 };
 
+enum iio_chan_info_enum {
+        IIO_CHAN_INFO_RAW = 0,
+        IIO_CHAN_INFO_PROCESSED,
+        IIO_CHAN_INFO_SCALE,
+        IIO_CHAN_INFO_OFFSET,
+        IIO_CHAN_INFO_CALIBSCALE,
+        IIO_CHAN_INFO_CALIBBIAS,
+        IIO_CHAN_INFO_PEAK,
+        IIO_CHAN_INFO_PEAK_SCALE,
+        IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW,
+        IIO_CHAN_INFO_AVERAGE_RAW,
+        IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY,
+        IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY,
+        IIO_CHAN_INFO_SAMP_FREQ,
+        IIO_CHAN_INFO_FREQUENCY,
+        IIO_CHAN_INFO_PHASE,
+        IIO_CHAN_INFO_HARDWAREGAIN,
+        IIO_CHAN_INFO_HYSTERESIS,
+        IIO_CHAN_INFO_INT_TIME,
+        IIO_CHAN_INFO_ENABLE,
+        IIO_CHAN_INFO_CALIBHEIGHT,
+        IIO_CHAN_INFO_CALIBWEIGHT,
+        IIO_CHAN_INFO_DEBOUNCE_COUNT,
+        IIO_CHAN_INFO_DEBOUNCE_TIME,
+        IIO_CHAN_INFO_CALIBEMISSIVITY,
+        IIO_CHAN_INFO_OVERSAMPLING_RATIO,
+};
+
 #endif /* _IIO_TYPES_H_ */
diff --git a/include/linux/sound.h b/include/linux/sound.h
index 3c6d393c7f29..ec85b7a1f8d1 100644
--- a/include/linux/sound.h
+++ b/include/linux/sound.h
@@ -12,11 +12,9 @@ struct device;
 extern int register_sound_special(const struct file_operations *fops, int unit);
 extern int register_sound_special_device(const struct file_operations *fops, int unit, struct device *dev);
 extern int register_sound_mixer(const struct file_operations *fops, int dev);
-extern int register_sound_midi(const struct file_operations *fops, int dev);
 extern int register_sound_dsp(const struct file_operations *fops, int dev);
 
 extern void unregister_sound_special(int unit);
 extern void unregister_sound_mixer(int unit);
-extern void unregister_sound_midi(int unit);
 extern void unregister_sound_dsp(int unit);
 #endif /* _LINUX_SOUND_H */