[U-Boot] [PATCH 3/3] ds1621: Fix negative temperature readings

From: Jeff Dischler jdischler@xes-inc.com

Fix bug where signed data was processed as unsigned. The bug previously resulted in negative temperature readings wrapping around, eg -10 became 245.

Signed-off-by: Jeff Dischler jdischler@xes-inc.com Signed-off-by: Peter Tyser ptyser@xes-inc.com --- drivers/hwmon/ds1621.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/hwmon/ds1621.c b/drivers/hwmon/ds1621.c index 60bf502..5a2ea62 100644 --- a/drivers/hwmon/ds1621.c +++ b/drivers/hwmon/ds1621.c @@ -80,7 +80,7 @@ int dtt_read(int sensor, int reg)

/* Handle 2 byte result */ if (dlen == 2) - return ((int)((short)data[1] + (((short)data[0]) << 8))); + return (short)((data[0] << 8) | data[1]);

return (int)data[0]; }