Merge tag 'iio-for-3.10a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

First set of IIO new drivers and cleanup for the 3.10 cycle.

New stuff

1) Add OF support for specifying mappings between iio devices and their
   in kernel consumers.
2) Driver for AD7923 (extra functionality and support for ad7904, ad7914 and
   ad7924 added later in series)
3) Driver for Exynos adc (dt suppor for phy added later in series).
4) Make iio_push_event save IRQ context - necessary if it is to be used
   within an interrupt handler.  Users of this functionality to follow.
5) For iio use the device tree node name to provide the hwmon name attribute
   if available.

Removal and moves out of staging

1) Drop the adt7410 driver from IIO now that there is a hmwon driver with
   equivalent support. This device is very much targeted at hardware
   monitoring so hwmon is a more appropriate host for the driver.
2) Move iio_hwmon driver to drivers/hwmon.

Cleanups

1) Minor cleanup in ST common library.
2) Large set of patches to break the info_mask element which previously used
odd and even bits to specify if a channel attribute was either shared across
similar channels or specific to only one.  Now we have two bitmaps, one for
those parameters that are specific to this channel and one for those shared
by all channels with the same type as this one.  This has no effect on the
userspace abi. It simplifies the core code and provides more space for new
channel parameters. It has been on the todo list for a long time!

Conflicts:
	drivers/iio/dac/ad5064.c

4 files changed, 31 insertions, 93 deletions

diff --git a/include/linux/iio/adc/ad_sigma_delta.h b/include/linux/iio/adc/ad_sigma_delta.h
index 2e4eab9868a3..e7fdec4db9da 100644
--- a/include/linux/iio/adc/ad_sigma_delta.h
+++ b/include/linux/iio/adc/ad_sigma_delta.h
@@ -133,9 +133,9 @@ int ad_sd_validate_trigger(struct iio_dev *indio_dev, struct iio_trigger *trig);
                 .channel2 = (_channel2), \
                 .address = (_address), \
                 .extend_name = (_extend_name), \
-                .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT | \
-                        IIO_CHAN_INFO_SCALE_SHARED_BIT | \
-                        IIO_CHAN_INFO_OFFSET_SEPARATE_BIT, \
+                .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
+                        BIT(IIO_CHAN_INFO_OFFSET), \
+                .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
                 .scan_index = (_si), \
                 .scan_type = { \
                         .sign = 'u', \
diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
index 8bd12be0b02f..172c5b23cb84 100644
--- a/include/linux/iio/common/st_sensors.h
+++ b/include/linux/iio/common/st_sensors.h
@@ -15,6 +15,7 @@
 #include <linux/spi/spi.h>
 #include <linux/irqreturn.h>
 #include <linux/iio/trigger.h>
+#include <linux/bitops.h>
 
 #define ST_SENSORS_TX_MAX_LENGTH                2
 #define ST_SENSORS_RX_MAX_LENGTH                6
@@ -45,8 +46,8 @@
 { \
         .type = device_type, \
         .modified = 1, \
-        .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT | \
-                        IIO_CHAN_INFO_SCALE_SEPARATE_BIT, \
+        .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
+                        BIT(IIO_CHAN_INFO_SCALE), \
         .scan_index = index, \
         .channel2 = mod, \
         .address = addr, \
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index da8c776ba0bd..8d171f427632 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -38,76 +38,6 @@ enum iio_chan_info_enum {
         IIO_CHAN_INFO_HYSTERESIS,
 };
 
-#define IIO_CHAN_INFO_SHARED_BIT(type) BIT(type*2)
-#define IIO_CHAN_INFO_SEPARATE_BIT(type) BIT(type*2 + 1)
-#define IIO_CHAN_INFO_BITS(type) (IIO_CHAN_INFO_SHARED_BIT(type) | \
-                                    IIO_CHAN_INFO_SEPARATE_BIT(type))
-
-#define IIO_CHAN_INFO_RAW_SEPARATE_BIT                  \
-        IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_RAW)
-#define IIO_CHAN_INFO_PROCESSED_SEPARATE_BIT                    \
-        IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_PROCESSED)
-#define IIO_CHAN_INFO_SCALE_SEPARATE_BIT                \
-        IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_SCALE)
-#define IIO_CHAN_INFO_SCALE_SHARED_BIT                  \
-        IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_SCALE)
-#define IIO_CHAN_INFO_OFFSET_SEPARATE_BIT                       \
-        IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_OFFSET)
-#define IIO_CHAN_INFO_OFFSET_SHARED_BIT                 \
-        IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_OFFSET)
-#define IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT                   \
-        IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_CALIBSCALE)
-#define IIO_CHAN_INFO_CALIBSCALE_SHARED_BIT                     \
-        IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_CALIBSCALE)
-#define IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT                    \
-        IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_CALIBBIAS)
-#define IIO_CHAN_INFO_CALIBBIAS_SHARED_BIT                      \
-        IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_CALIBBIAS)
-#define IIO_CHAN_INFO_PEAK_SEPARATE_BIT                 \
-        IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_PEAK)
-#define IIO_CHAN_INFO_PEAK_SHARED_BIT                   \
-        IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_PEAK)
-#define IIO_CHAN_INFO_PEAKSCALE_SEPARATE_BIT                    \
-        IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_PEAKSCALE)
-#define IIO_CHAN_INFO_PEAKSCALE_SHARED_BIT                      \
-        IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_PEAKSCALE)
-#define IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW_SEPARATE_BIT    \
-        IIO_CHAN_INFO_SEPARATE_BIT(                             \
-                IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW)
-#define IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW_SHARED_BIT      \
-        IIO_CHAN_INFO_SHARED_BIT(                               \
-                IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW)
-#define IIO_CHAN_INFO_AVERAGE_RAW_SEPARATE_BIT                  \
-        IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_AVERAGE_RAW)
-#define IIO_CHAN_INFO_AVERAGE_RAW_SHARED_BIT                    \
-        IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_AVERAGE_RAW)
-#define IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT \
-        IIO_CHAN_INFO_SHARED_BIT(                              \
-                IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY)
-#define IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SEPARATE_BIT \
-        IIO_CHAN_INFO_SEPARATE_BIT(                            \
-                IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY)
-#define IIO_CHAN_INFO_SAMP_FREQ_SEPARATE_BIT            \
-        IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_SAMP_FREQ)
-#define IIO_CHAN_INFO_SAMP_FREQ_SHARED_BIT                      \
-        IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_SAMP_FREQ)
-#define IIO_CHAN_INFO_FREQUENCY_SEPARATE_BIT                    \
-        IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_FREQUENCY)
-#define IIO_CHAN_INFO_FREQUENCY_SHARED_BIT                      \
-        IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_FREQUENCY)
-#define IIO_CHAN_INFO_PHASE_SEPARATE_BIT                        \
-        IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_PHASE)
-#define IIO_CHAN_INFO_PHASE_SHARED_BIT                  \
-        IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_PHASE)
-#define IIO_CHAN_INFO_HARDWAREGAIN_SEPARATE_BIT                 \
-        IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_HARDWAREGAIN)
-#define IIO_CHAN_INFO_HARDWAREGAIN_SHARED_BIT                   \
-        IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_HARDWAREGAIN)
-#define IIO_CHAN_INFO_HYSTERESIS_SEPARATE_BIT                   \
-        IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_HYSTERESIS)
-#define IIO_CHAN_INFO_HYSTERESIS_SHARED_BIT                     \
-        IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_HYSTERESIS)
-
 enum iio_endian {
         IIO_CPU,
         IIO_BE,
@@ -218,6 +148,10 @@ ssize_t iio_enum_write(struct iio_dev *indio_dev,
  *                      endianness:     little or big endian
  * @info_mask:          What information is to be exported about this channel.
  *                      This includes calibbias, scale etc.
+ * @info_mask_separate: What information is to be exported that is specific to
+ *                      this channel.
+ * @info_mask_shared_by_type: What information is to be exported that is shared
+*                       by all channels of the same type.
  * @event_mask:         What events can this channel produce.
  * @ext_info:           Array of extended info attributes for this channel.
  *                      The array is NULL terminated, the last element should
@@ -253,6 +187,8 @@ struct iio_chan_spec {
                 enum iio_endian endianness;
         } scan_type;
         long                    info_mask;
+        long                    info_mask_separate;
+        long                    info_mask_shared_by_type;
         long                    event_mask;
         const struct iio_chan_spec_ext_info *ext_info;
         const char              *extend_name;
@@ -275,7 +211,8 @@ struct iio_chan_spec {
 static inline bool iio_channel_has_info(const struct iio_chan_spec *chan,
         enum iio_chan_info_enum type)
 {
-        return chan->info_mask & IIO_CHAN_INFO_BITS(type);
+        return (chan->info_mask_separate & type) |
+               (chan->info_mask_shared_by_type & type);
 }
 
 #define IIO_ST(si, rb, sb, sh)                                          \
diff --git a/include/linux/iio/imu/adis.h b/include/linux/iio/imu/adis.h
index ff781dca2e9a..b665dc7f017b 100644
--- a/include/linux/iio/imu/adis.h
+++ b/include/linux/iio/imu/adis.h
@@ -162,8 +162,8 @@ int adis_single_conversion(struct iio_dev *indio_dev,
         .indexed = 1, \
         .channel = (chan), \
         .extend_name = name, \
-        .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT | \
-                IIO_CHAN_INFO_SCALE_SEPARATE_BIT, \
+        .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
+                BIT(IIO_CHAN_INFO_SCALE), \
         .address = (addr), \
         .scan_index = (si), \
         .scan_type = { \
@@ -184,9 +184,9 @@ int adis_single_conversion(struct iio_dev *indio_dev,
         .type = IIO_TEMP, \
         .indexed = 1, \
         .channel = 0, \
-        .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT | \
-                IIO_CHAN_INFO_SCALE_SEPARATE_BIT | \
-                IIO_CHAN_INFO_OFFSET_SEPARATE_BIT, \
+        .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
+                BIT(IIO_CHAN_INFO_SCALE) | \
+                BIT(IIO_CHAN_INFO_OFFSET), \
         .address = (addr), \
         .scan_index = (si), \
         .scan_type = { \
@@ -197,13 +197,13 @@ int adis_single_conversion(struct iio_dev *indio_dev,
         }, \
 }
 
-#define ADIS_MOD_CHAN(_type, mod, addr, si, info, bits) { \
+#define ADIS_MOD_CHAN(_type, mod, addr, si, info_sep, bits) { \
         .type = (_type), \
         .modified = 1, \
         .channel2 = IIO_MOD_ ## mod, \
-        .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT | \
-                 IIO_CHAN_INFO_SCALE_SHARED_BIT | \
-                 info, \
+        .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
+                 info_sep, \
+        .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
         .address = (addr), \
         .scan_index = (si), \
         .scan_type = { \
@@ -214,17 +214,17 @@ int adis_single_conversion(struct iio_dev *indio_dev,
         }, \
 }
 
-#define ADIS_ACCEL_CHAN(mod, addr, si, info, bits) \
-        ADIS_MOD_CHAN(IIO_ACCEL, mod, addr, si, info, bits)
+#define ADIS_ACCEL_CHAN(mod, addr, si, info_sep, bits) \
+        ADIS_MOD_CHAN(IIO_ACCEL, mod, addr, si, info_sep, bits)
 
-#define ADIS_GYRO_CHAN(mod, addr, si, info, bits) \
-        ADIS_MOD_CHAN(IIO_ANGL_VEL, mod, addr, si, info, bits)
+#define ADIS_GYRO_CHAN(mod, addr, si, info_sep, bits) \
+        ADIS_MOD_CHAN(IIO_ANGL_VEL, mod, addr, si, info_sep, bits)
 
-#define ADIS_INCLI_CHAN(mod, addr, si, info, bits) \
-        ADIS_MOD_CHAN(IIO_INCLI, mod, addr, si, info, bits)
+#define ADIS_INCLI_CHAN(mod, addr, si, info_sep, bits) \
+        ADIS_MOD_CHAN(IIO_INCLI, mod, addr, si, info_sep, bits)
 
-#define ADIS_ROT_CHAN(mod, addr, si, info, bits) \
-        ADIS_MOD_CHAN(IIO_ROT, mod, addr, si, info, bits)
+#define ADIS_ROT_CHAN(mod, addr, si, info_sep, bits) \
+        ADIS_MOD_CHAN(IIO_ROT, mod, addr, si, info_sep, bits)
 
 #ifdef CONFIG_IIO_ADIS_LIB_BUFFER