Merge branch 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux into v4l_for_linus

* 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux: (9717 commits)
  media-bus: Fixup RGB444_1X12, RGB565_1X16, and YUV8_1X24 media bus format
  hexdump: avoid warning in test function
  fs: take i_mutex during prepare_binprm for set[ug]id executables
  smp: Fix error case handling in smp_call_function_*()
  iommu-common: Fix PARISC compile-time warnings
  sparc: Make LDC use common iommu poll management functions
  sparc: Make sparc64 use scalable lib/iommu-common.c functions
  Break up monolithic iommu table/lock into finer graularity pools and lock
  sparc: Revert generic IOMMU allocator.
  tools/power turbostat: correct dumped pkg-cstate-limit value
  tools/power turbostat: calculate TSC frequency from CPUID(0x15) on SKL
  tools/power turbostat: correct DRAM RAPL units on recent Xeon processors
  tools/power turbostat: Initial Skylake support
  tools/power turbostat: Use $(CURDIR) instead of $(PWD) and add support for O= option in Makefile
  tools/power turbostat: modprobe msr, if needed
  tools/power turbostat: dump MSR_TURBO_RATIO_LIMIT2
  tools/power turbostat: use new MSR_TURBO_RATIO_LIMIT names
  Bluetooth: hidp: Fix regression with older userspace and flags validation
  config: Enable NEED_DMA_MAP_STATE by default when SWIOTLB is selected
  perf/x86/intel/pt: Fix and clean up error handling in pt_event_add()
  ...

That solves several merge conflicts:
	Documentation/DocBook/media/v4l/subdev-formats.xml
	Documentation/devicetree/bindings/vendor-prefixes.txt
	drivers/staging/media/mn88473/mn88473.c
	include/linux/kconfig.h
	include/uapi/linux/media-bus-format.h

The ones at subdev-formats.xml and media-bus-format.h are not trivial.
That's why we opted to merge from DRM.

5 files changed, 21 insertions, 110 deletions

diff --git a/include/linux/iio/buffer.h b/include/linux/iio/buffer.h
index b65850a41127..eb8622b78ec9 100644
--- a/include/linux/iio/buffer.h
+++ b/include/linux/iio/buffer.h
@@ -21,8 +21,8 @@ struct iio_buffer;
  * struct iio_buffer_access_funcs - access functions for buffers.
  * @store_to:           actually store stuff to the buffer
  * @read_first_n:       try to get a specified number of bytes (must exist)
- * @data_available:     indicates whether data for reading from the buffer is
- *                      available.
+ * @data_available:     indicates how much data is available for reading from
+ *                      the buffer.
  * @request_update:     if a parameter change has been marked, update underlying
  *                      storage.
  * @set_bytes_per_datum:set number of bytes per datum
@@ -43,7 +43,7 @@ struct iio_buffer_access_funcs {
         int (*read_first_n)(struct iio_buffer *buffer,
                             size_t n,
                             char __user *buf);
-        bool (*data_available)(struct iio_buffer *buffer);
+        size_t (*data_available)(struct iio_buffer *buffer);
 
         int (*request_update)(struct iio_buffer *buffer);
 
@@ -72,6 +72,7 @@ struct iio_buffer_access_funcs {
  * @demux_bounce:       [INTERN] buffer for doing gather from incoming scan.
  * @buffer_list:        [INTERN] entry in the devices list of current buffers.
  * @ref:                [INTERN] reference count of the buffer.
+ * @watermark:          [INTERN] number of datums to wait for poll/read.
  */
 struct iio_buffer {
         int                                     length;
@@ -90,6 +91,7 @@ struct iio_buffer {
         void                                    *demux_bounce;
         struct list_head                        buffer_list;
         struct kref                             ref;
+        unsigned int                            watermark;
 };
 
 /**
diff --git a/include/linux/iio/dac/max517.h b/include/linux/iio/dac/max517.h
index f6d1d252f08d..7668716cd73c 100644
--- a/include/linux/iio/dac/max517.h
+++ b/include/linux/iio/dac/max517.h
@@ -9,7 +9,7 @@
 #define IIO_DAC_MAX517_H_
 
 struct max517_platform_data {
-        u16                             vref_mv[2];
+        u16                             vref_mv[8];
 };
 
 #endif /* IIO_DAC_MAX517_H_ */
diff --git a/include/linux/iio/events.h b/include/linux/iio/events.h
index 03fa332ad2a8..8ad87d1c5340 100644
--- a/include/linux/iio/events.h
+++ b/include/linux/iio/events.h
@@ -9,22 +9,8 @@
 #ifndef _IIO_EVENTS_H_
 #define _IIO_EVENTS_H_
 
-#include <linux/ioctl.h>
-#include <linux/types.h>
 #include <linux/iio/types.h>
-
-/**
- * struct iio_event_data - The actual event being pushed to userspace
- * @id:         event identifier
- * @timestamp:  best estimate of time of event occurrence (often from
- *              the interrupt handler)
- */
-struct iio_event_data {
-        __u64   id;
-        __s64   timestamp;
-};
-
-#define IIO_GET_EVENT_FD_IOCTL _IOR('i', 0x90, int)
+#include <uapi/linux/iio/events.h>
 
 /**
  * IIO_EVENT_CODE() - create event identifier
@@ -70,18 +56,4 @@ struct iio_event_data {
 #define IIO_UNMOD_EVENT_CODE(chan_type, number, type, direction)        \
         IIO_EVENT_CODE(chan_type, 0, 0, direction, type, number, 0, 0)
 
-#define IIO_EVENT_CODE_EXTRACT_TYPE(mask) ((mask >> 56) & 0xFF)
-
-#define IIO_EVENT_CODE_EXTRACT_DIR(mask) ((mask >> 48) & 0x7F)
-
-#define IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(mask) ((mask >> 32) & 0xFF)
-
-/* Event code number extraction depends on which type of event we have.
- * Perhaps review this function in the future*/
-#define IIO_EVENT_CODE_EXTRACT_CHAN(mask) ((__s16)(mask & 0xFFFF))
-#define IIO_EVENT_CODE_EXTRACT_CHAN2(mask) ((__s16)(((mask) >> 16) & 0xFFFF))
-
-#define IIO_EVENT_CODE_EXTRACT_MODIFIER(mask) ((mask >> 40) & 0xFF)
-#define IIO_EVENT_CODE_EXTRACT_DIFF(mask) (((mask) >> 55) & 0x1)
-
 #endif
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index 80d855061064..d86b753e9b30 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -338,6 +338,16 @@ struct iio_dev;
  *                      provide a custom of_xlate function that reads the
  *                      *args* and returns the appropriate index in registered
  *                      IIO channels array.
+ * @hwfifo_set_watermark: function pointer to set the current hardware
+ *                      fifo watermark level; see hwfifo_* entries in
+ *                      Documentation/ABI/testing/sysfs-bus-iio for details on
+ *                      how the hardware fifo operates
+ * @hwfifo_flush_to_buffer: function pointer to flush the samples stored
+ *                      in the hardware fifo to the device buffer. The driver
+ *                      should not flush more than count samples. The function
+ *                      must return the number of samples flushed, 0 if no
+ *                      samples were flushed or a negative integer if no samples
+ *                      were flushed and there was an error.
  **/
 struct iio_info {
         struct module                   *driver_module;
@@ -399,6 +409,9 @@ struct iio_info {
                                   unsigned *readval);
         int (*of_xlate)(struct iio_dev *indio_dev,
                         const struct of_phandle_args *iiospec);
+        int (*hwfifo_set_watermark)(struct iio_dev *indio_dev, unsigned val);
+        int (*hwfifo_flush_to_buffer)(struct iio_dev *indio_dev,
+                                      unsigned count);
 };
 
 /**
diff --git a/include/linux/iio/types.h b/include/linux/iio/types.h
index 580ed5bdb3fa..942b6de68e2f 100644
--- a/include/linux/iio/types.h
+++ b/include/linux/iio/types.h
@@ -10,76 +10,7 @@
 #ifndef _IIO_TYPES_H_
 #define _IIO_TYPES_H_
 
-enum iio_chan_type {
-        IIO_VOLTAGE,
-        IIO_CURRENT,
-        IIO_POWER,
-        IIO_ACCEL,
-        IIO_ANGL_VEL,
-        IIO_MAGN,
-        IIO_LIGHT,
-        IIO_INTENSITY,
-        IIO_PROXIMITY,
-        IIO_TEMP,
-        IIO_INCLI,
-        IIO_ROT,
-        IIO_ANGL,
-        IIO_TIMESTAMP,
-        IIO_CAPACITANCE,
-        IIO_ALTVOLTAGE,
-        IIO_CCT,
-        IIO_PRESSURE,
-        IIO_HUMIDITYRELATIVE,
-        IIO_ACTIVITY,
-        IIO_STEPS,
-        IIO_ENERGY,
-        IIO_DISTANCE,
-        IIO_VELOCITY,
-};
-
-enum iio_modifier {
-        IIO_NO_MOD,
-        IIO_MOD_X,
-        IIO_MOD_Y,
-        IIO_MOD_Z,
-        IIO_MOD_X_AND_Y,
-        IIO_MOD_X_AND_Z,
-        IIO_MOD_Y_AND_Z,
-        IIO_MOD_X_AND_Y_AND_Z,
-        IIO_MOD_X_OR_Y,
-        IIO_MOD_X_OR_Z,
-        IIO_MOD_Y_OR_Z,
-        IIO_MOD_X_OR_Y_OR_Z,
-        IIO_MOD_LIGHT_BOTH,
-        IIO_MOD_LIGHT_IR,
-        IIO_MOD_ROOT_SUM_SQUARED_X_Y,
-        IIO_MOD_SUM_SQUARED_X_Y_Z,
-        IIO_MOD_LIGHT_CLEAR,
-        IIO_MOD_LIGHT_RED,
-        IIO_MOD_LIGHT_GREEN,
-        IIO_MOD_LIGHT_BLUE,
-        IIO_MOD_QUATERNION,
-        IIO_MOD_TEMP_AMBIENT,
-        IIO_MOD_TEMP_OBJECT,
-        IIO_MOD_NORTH_MAGN,
-        IIO_MOD_NORTH_TRUE,
-        IIO_MOD_NORTH_MAGN_TILT_COMP,
-        IIO_MOD_NORTH_TRUE_TILT_COMP,
-        IIO_MOD_RUNNING,
-        IIO_MOD_JOGGING,
-        IIO_MOD_WALKING,
-        IIO_MOD_STILL,
-        IIO_MOD_ROOT_SUM_SQUARED_X_Y_Z,
-};
-
-enum iio_event_type {
-        IIO_EV_TYPE_THRESH,
-        IIO_EV_TYPE_MAG,
-        IIO_EV_TYPE_ROC,
-        IIO_EV_TYPE_THRESH_ADAPTIVE,
-        IIO_EV_TYPE_MAG_ADAPTIVE,
-        IIO_EV_TYPE_CHANGE,
-};
+#include <uapi/linux/iio/types.h>
 
 enum iio_event_info {
         IIO_EV_INFO_ENABLE,
@@ -88,13 +19,6 @@ enum iio_event_info {
         IIO_EV_INFO_PERIOD,
 };
 
-enum iio_event_direction {
-        IIO_EV_DIR_EITHER,
-        IIO_EV_DIR_RISING,
-        IIO_EV_DIR_FALLING,
-        IIO_EV_DIR_NONE,
-};
-
 #define IIO_VAL_INT 1
 #define IIO_VAL_INT_PLUS_MICRO 2
 #define IIO_VAL_INT_PLUS_NANO 3