iio: adis: Switch sampling frequency attr to core support.

By using the info_mask_shared_by_all element of the channel spec, acce
to the sampling frequency becomes available to in kernel users of the
driver.  It also shortens and simplifies the code.

This particular conversion was made more complicated by the shared library
and the fact that a number of the drivers do not actually have support for
setting or reading the sampling frequency.  The hardware, in those cases
investigated supports it. It's just never been implemented.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Reviewed-by: Hartmut Knaack <knaack.h@gmx.de>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>

1 files changed, 18 insertions, 15 deletions

diff --git a/include/linux/iio/imu/adis.h b/include/linux/iio/imu/adis.h
index b665dc7f017b..fa2d01ef8f55 100644
--- a/include/linux/iio/imu/adis.h
+++ b/include/linux/iio/imu/adis.h
@@ -157,13 +157,14 @@ int adis_single_conversion(struct iio_dev *indio_dev,
         const struct iio_chan_spec *chan, unsigned int error_mask,
         int *val);
 
-#define ADIS_VOLTAGE_CHAN(addr, si, chan, name, bits) { \
+#define ADIS_VOLTAGE_CHAN(addr, si, chan, name, info_all, bits) { \
         .type = IIO_VOLTAGE, \
         .indexed = 1, \
         .channel = (chan), \
         .extend_name = name, \
         .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
                 BIT(IIO_CHAN_INFO_SCALE), \
+        .info_mask_shared_by_all = info_all, \
         .address = (addr), \
         .scan_index = (si), \
         .scan_type = { \
@@ -174,19 +175,20 @@ int adis_single_conversion(struct iio_dev *indio_dev,
         }, \
 }
 
-#define ADIS_SUPPLY_CHAN(addr, si, bits) \
-        ADIS_VOLTAGE_CHAN(addr, si, 0, "supply", bits)
+#define ADIS_SUPPLY_CHAN(addr, si, info_all, bits) \
+        ADIS_VOLTAGE_CHAN(addr, si, 0, "supply", info_all, bits)
 
-#define ADIS_AUX_ADC_CHAN(addr, si, bits) \
-        ADIS_VOLTAGE_CHAN(addr, si, 1, NULL, bits)
+#define ADIS_AUX_ADC_CHAN(addr, si, info_all, bits) \
+        ADIS_VOLTAGE_CHAN(addr, si, 1, NULL, info_all, bits)
 
-#define ADIS_TEMP_CHAN(addr, si, bits) { \
+#define ADIS_TEMP_CHAN(addr, si, info_all, bits) { \
         .type = IIO_TEMP, \
         .indexed = 1, \
         .channel = 0, \
         .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
                 BIT(IIO_CHAN_INFO_SCALE) | \
                 BIT(IIO_CHAN_INFO_OFFSET), \
+        .info_mask_shared_by_all = info_all, \
         .address = (addr), \
         .scan_index = (si), \
         .scan_type = { \
@@ -197,13 +199,14 @@ int adis_single_conversion(struct iio_dev *indio_dev,
         }, \
 }
 
-#define ADIS_MOD_CHAN(_type, mod, addr, si, info_sep, bits) { \
+#define ADIS_MOD_CHAN(_type, mod, addr, si, info_sep, info_all, bits) { \
         .type = (_type), \
         .modified = 1, \
         .channel2 = IIO_MOD_ ## mod, \
         .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
                  info_sep, \
         .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
+        .info_mask_shared_by_all = info_all, \
         .address = (addr), \
         .scan_index = (si), \
         .scan_type = { \
@@ -214,17 +217,17 @@ int adis_single_conversion(struct iio_dev *indio_dev,
         }, \
 }
 
-#define ADIS_ACCEL_CHAN(mod, addr, si, info_sep, bits) \
-        ADIS_MOD_CHAN(IIO_ACCEL, mod, addr, si, info_sep, bits)
+#define ADIS_ACCEL_CHAN(mod, addr, si, info_sep, info_all, bits) \
+        ADIS_MOD_CHAN(IIO_ACCEL, mod, addr, si, info_sep, info_all, 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_GYRO_CHAN(mod, addr, si, info_sep, info_all, bits)         \
+        ADIS_MOD_CHAN(IIO_ANGL_VEL, mod, addr, si, info_sep, info_all, bits)
 
-#define ADIS_INCLI_CHAN(mod, addr, si, info_sep, bits) \
-        ADIS_MOD_CHAN(IIO_INCLI, mod, addr, si, info_sep, bits)
+#define ADIS_INCLI_CHAN(mod, addr, si, info_sep, info_all, bits) \
+        ADIS_MOD_CHAN(IIO_INCLI, mod, addr, si, info_sep, info_all, bits)
 
-#define ADIS_ROT_CHAN(mod, addr, si, info_sep, bits) \
-        ADIS_MOD_CHAN(IIO_ROT, mod, addr, si, info_sep, bits)
+#define ADIS_ROT_CHAN(mod, addr, si, info_sep, info_all, bits) \
+        ADIS_MOD_CHAN(IIO_ROT, mod, addr, si, info_sep, info_all, bits)
 
 #ifdef CONFIG_IIO_ADIS_LIB_BUFFER