diff options
Diffstat (limited to 'drivers/hwmon/jc42.c')
| -rw-r--r-- | drivers/hwmon/jc42.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/hwmon/jc42.c b/drivers/hwmon/jc42.c index 388f8bcd898e..996bdfd5cf25 100644 --- a/drivers/hwmon/jc42.c +++ b/drivers/hwmon/jc42.c @@ -201,7 +201,7 @@ struct jc42_data { #define JC42_TEMP_MIN 0 #define JC42_TEMP_MAX 125000 -static u16 jc42_temp_to_reg(int temp, bool extended) +static u16 jc42_temp_to_reg(long temp, bool extended) { int ntemp = clamp_val(temp, extended ? JC42_TEMP_MIN_EXTENDED : @@ -213,11 +213,7 @@ static u16 jc42_temp_to_reg(int temp, bool extended) static int jc42_temp_from_reg(s16 reg) { - reg &= 0x1fff; - - /* sign extend register */ - if (reg & 0x1000) - reg |= 0xf000; + reg = sign_extend32(reg, 12); /* convert from 0.0625 to 0.001 resolution */ return reg * 125 / 2; @@ -308,15 +304,18 @@ static ssize_t set_temp_crit_hyst(struct device *dev, const char *buf, size_t count) { struct jc42_data *data = dev_get_drvdata(dev); - unsigned long val; + long val; int diff, hyst; int err; int ret = count; - if (kstrtoul(buf, 10, &val) < 0) + if (kstrtol(buf, 10, &val) < 0) return -EINVAL; + val = clamp_val(val, (data->extended ? JC42_TEMP_MIN_EXTENDED : + JC42_TEMP_MIN) - 6000, JC42_TEMP_MAX); diff = jc42_temp_from_reg(data->temp[t_crit]) - val; + hyst = 0; if (diff > 0) { if (diff < 2250) |