[U-Boot] [PATCH 10/18] 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 --- board/gateworks/gw_ventana/gsc.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/board/gateworks/gw_ventana/gsc.c b/board/gateworks/gw_ventana/gsc.c index 2555824..c626ba2 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