meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-scmi/0001-iio-core-Introduce-IIO_VAL_INT_64.patch

   1 From 3698bab1b1856a8146c8f8a83c888bd9cefcdde0 Mon Sep 17 00:00:00 2001
   2 From: Andriy Tryshnivskyy <andriy.tryshnivskyy@opensynergy.com>
   3 Date: Sun, 24 Oct 2021 12:16:26 +0300
   4 Subject: [PATCH] iio: core: Introduce IIO_VAL_INT_64.
   5
   6 Introduce IIO_VAL_INT_64 to read 64-bit value for
   7 channel attribute. Val is used as lower 32 bits.
   8
   9 Signed-off-by: Andriy Tryshnivskyy <andriy.tryshnivskyy@opensynergy.com>
  10 Link: https://lore.kernel.org/r/20211024091627.28031-2-andriy.tryshnivskyy@opensynergy.com
  11 Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
  12 ---
  13  drivers/iio/industrialio-core.c | 3 +++
  14  include/linux/iio/types.h       | 1 +
  15  2 files changed, 4 insertions(+)
  16
  17 diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
  18 index 3e1e86d987cc..3f21e6b49a4a 100644
  19 --- a/drivers/iio/industrialio-core.c
  20 +++ b/drivers/iio/industrialio-core.c
  21 @@ -702,6 +702,9 @@ static ssize_t __iio_format_value(char *buf, size_t offset, unsigned int type,
  22         }
  23         case IIO_VAL_CHAR:
  24                 return sysfs_emit_at(buf, offset, "%c", (char)vals[0]);
  25 +       case IIO_VAL_INT_64:
  26 +               tmp2 = (s64)((((u64)vals[1]) << 32) | (u32)vals[0]);
  27 +               return sysfs_emit_at(buf, offset, "%lld", tmp2);
  28         default:
  29                 return 0;
  30         }
  31 diff --git a/include/linux/iio/types.h b/include/linux/iio/types.h
  32 index 84b3f8175cc6..a7aa91f3a8dc 100644
  33 --- a/include/linux/iio/types.h
  34 +++ b/include/linux/iio/types.h
  35 @@ -24,6 +24,7 @@ enum iio_event_info {
  36  #define IIO_VAL_INT_PLUS_NANO 3
  37  #define IIO_VAL_INT_PLUS_MICRO_DB 4
  38  #define IIO_VAL_INT_MULTIPLE 5
  39 +#define IIO_VAL_INT_64 6 /* 64-bit data, val is lower 32 bits */
  40  #define IIO_VAL_FRACTIONAL 10
  41  #define IIO_VAL_FRACTIONAL_LOG2 11
  42  #define IIO_VAL_CHAR 12
  43 --
  44 2.17.1
  45