5 files changed, 55 insertions, 95 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
 
diff --git a/include/linux/iio/trigger.h b/include/linux/iio/trigger.h
index c66e0a96f6e8..3869c525b052 100644
--- a/include/linux/iio/trigger.h
+++ b/include/linux/iio/trigger.h
@@ -44,7 +44,6 @@ struct iio_trigger_ops {
  * @id:                 [INTERN] unique id number
  * @name:               [DRIVER] unique name
  * @dev:                [DRIVER] associated device (if relevant)
- * @private_data:       [DRIVER] device specific data
  * @list:               [INTERN] used in maintenance of global trigger list
  * @alloc_list:         [DRIVER] used for driver specific trigger list
  * @use_count:          use count for the trigger
@@ -60,7 +59,6 @@ struct iio_trigger {
         const char                      *name;
         struct device                   dev;
 
-        void                            *private_data;
         struct list_head                list;
         struct list_head                alloc_list;
         int use_count;
@@ -92,6 +90,30 @@ static inline void iio_trigger_get(struct iio_trigger *trig)
 }
 
 /**
+ * iio_device_set_drvdata() - Set trigger driver data
+ * @trig: IIO trigger structure
+ * @data: Driver specific data
+ *
+ * Allows to attach an arbitrary pointer to an IIO trigger, which can later be
+ * retrieved by iio_trigger_get_drvdata().
+ */
+static inline void iio_trigger_set_drvdata(struct iio_trigger *trig, void *data)
+{
+        dev_set_drvdata(&trig->dev, data);
+}
+
+/**
+ * iio_trigger_get_drvdata() - Get trigger driver data
+ * @trig: IIO trigger structure
+ *
+ * Returns the data previously set with iio_trigger_set_drvdata()
+ */
+static inline void *iio_trigger_get_drvdata(struct iio_trigger *trig)
+{
+        return dev_get_drvdata(&trig->dev);
+}
+
+/**
  * iio_trigger_register() - register a trigger with the IIO core
  * @trig_info:  trigger to be registered
  **/