diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2020-04-21 03:31:34 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2020-05-03 11:47:21 +0300 |
| commit | 92b7d5b70fed6ad083d7a232a274520a4c03a60e (patch) | |
| tree | e5658ff7d458ba3c52b2cac207cfc22d7cb47357 /drivers/iio/temperature | |
| parent | e8ee40e77531a61fd85195011a75521eb3d22c8c (diff) | |
| download | linux-92b7d5b70fed6ad083d7a232a274520a4c03a60e.tar.xz | |
iio: temperature: max31856: Use get_unaligned_beXX()
This makes the driver code slightly easier to read.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/temperature')
| -rw-r--r-- | drivers/iio/temperature/max31856.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/iio/temperature/max31856.c b/drivers/iio/temperature/max31856.c index b4cb21ab2e85..b4c49a5d3685 100644 --- a/drivers/iio/temperature/max31856.c +++ b/drivers/iio/temperature/max31856.c @@ -14,6 +14,7 @@ #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> #include <linux/util_macros.h> +#include <asm/unaligned.h> #include <dt-bindings/iio/temperature/thermocouple.h> /* * The MSB of the register value determines whether the following byte will @@ -168,7 +169,7 @@ static int max31856_thermocouple_read(struct max31856_data *data, if (ret) return ret; /* Skip last 5 dead bits of LTCBL */ - *val = (reg_val[0] << 16 | reg_val[1] << 8 | reg_val[2]) >> 5; + *val = get_unaligned_be24(®_val[0]) >> 5; /* Check 7th bit of LTCBH reg. value for sign*/ if (reg_val[0] & 0x80) *val -= 0x80000; @@ -185,7 +186,7 @@ static int max31856_thermocouple_read(struct max31856_data *data, /* Get Cold Junction Temp. offset register value */ offset_cjto = reg_val[0]; /* Get CJTH and CJTL value and skip last 2 dead bits of CJTL */ - *val = (reg_val[1] << 8 | reg_val[2]) >> 2; + *val = get_unaligned_be16(®_val[1]) >> 2; /* As per datasheet add offset into CJTH and CJTL */ *val += offset_cjto; /* Check 7th bit of CJTH reg. value for sign */ |