summaryrefslogtreecommitdiff
path: root/board/gateworks
diff options
context:
space:
mode:
authorTim Harvey <tharvey@gateworks.com>2016-05-24 11:03:51 -0700
committerStefano Babic <sbabic@denx.de>2016-05-31 17:24:30 +0200
commit82a17e75da0d812c2e583e733efd1e67e7488933 (patch)
treeb0dabd77e86287eae33d0661ee689641e61136f3 /board/gateworks
parentefa7ed7236ee5bfab871f35ce70f3e3e1d39b4f6 (diff)
imx: ventana: gsc: fix negative temperature readings
The GSC Temperature sensor is a 2's complement value - adjust accordingly for negative temperatures. Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Diffstat (limited to 'board/gateworks')
-rw-r--r--board/gateworks/gw_ventana/gsc.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/board/gateworks/gw_ventana/gsc.c b/board/gateworks/gw_ventana/gsc.c
index 2555824259..c626ba25e7 100644
--- a/board/gateworks/gw_ventana/gsc.c
+++ b/board/gateworks/gw_ventana/gsc.c
@@ -71,6 +71,8 @@ static void read_hwmon(const char *name, uint reg, uint size)
puts("fRD\n");
} else {
ui = buf[0] | (buf[1]<<8) | (buf[2]<<16);
+ if (reg == GSC_HWMON_TEMP && ui > 0x8000)
+ ui -= 0xffff;
if (ui == 0xffffff)
puts("invalid\n");
else