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| author | Ridham Khurana <khurana.ridham222@gmail.com> | 2026-09-23 17:25:48 +0000 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2026-09-24 16:24:34 -0700 |
| commit | f58c16056f8585ebafb0f1f5d90c23085443a4b9 (patch) | |
| tree | 92b3c673113bf856bd044d987bbc48476896f577 /tools/lib/python/kdoc/python_version.py | |
| parent | 08e6615c909b2504a5862764f3a7fca00c7ab066 (diff) | |
| download | linux-next-f58c16056f8585ebafb0f1f5d90c23085443a4b9.tar.gz linux-next-f58c16056f8585ebafb0f1f5d90c23085443a4b9.zip | |
hwmon: (lm95245) Fix negative temperature conversion
temp_from_reg_signed() uses only the high byte when the sign bit is set
and drops the fractional bits in the low byte. Writing -500 to
temp2_offset stores 0xff80 (-0.5 degrees C) in the offset registers,
but reading temp2_offset back returns -1000.
Negative temp1_input and temp2_input values are rounded down to the
next whole degree the same way. The chip reports -0.125 degrees C as
0xffe0, which the driver returns as -1000.
Treat the register pair as a single 16-bit two's complement value.
Fixes: fffd80ccc1e6 ("hwmon: LM95245 driver")
Cc: stable@vger.kernel.org
Signed-off-by: Ridham Khurana <khurana.ridham222@gmail.com>
Link: https://patch.msgid.link/20260923172551.1593798-1-khurana.ridham222@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'tools/lib/python/kdoc/python_version.py')
0 files changed, 0 insertions, 0 deletions