diff options
| author | amy.shih <amy.shih@advantech.com.tw> | 2019-10-14 16:24:51 +0800 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2019-10-20 09:22:48 -0700 |
| commit | 6fc28b7e0aac8a72217b314dfb5208321d9448e2 (patch) | |
| tree | 100678f883e8d6bf7b079b4e98dcaebd2fa3e87d /drivers/hwmon/nct7904.c | |
| parent | 4f5cafb5cb8471e54afdc9054d973535614f7675 (diff) | |
| download | linux-6fc28b7e0aac8a72217b314dfb5208321d9448e2.tar.bz2 | |
hwmon: (nct7904) Fix the incorrect value of vsen_mask & tcpu_mask & temp_mode in nct7904_data struct.
Voltage sensors overlap with external temperature sensors. Detect
the multi-function of voltage, thermal diode, thermistor and
reserved from register VT_ADC_MD_REG to set value of vsen_mask &
tcpu_mask & temp_mode in nct7904_data struct. If the value is
reserved, needs to disable the vsen_mask & tcpu_mask.
Signed-off-by: amy.shih <amy.shih@advantech.com.tw>
Link: https://lore.kernel.org/r/20191014082451.2895-1-Amy.Shih@advantech.com.tw
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon/nct7904.c')
| -rw-r--r-- | drivers/hwmon/nct7904.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/hwmon/nct7904.c b/drivers/hwmon/nct7904.c index b26419dbe840..281c81edabc6 100644 --- a/drivers/hwmon/nct7904.c +++ b/drivers/hwmon/nct7904.c @@ -82,6 +82,10 @@ #define FANCTL1_FMR_REG 0x00 /* Bank 3; 1 reg per channel */ #define FANCTL1_OUT_REG 0x10 /* Bank 3; 1 reg per channel */ +#define VOLT_MONITOR_MODE 0x0 +#define THERMAL_DIODE_MODE 0x1 +#define THERMISTOR_MODE 0x3 + #define ENABLE_TSI BIT(1) static const unsigned short normal_i2c[] = { @@ -935,11 +939,16 @@ static int nct7904_probe(struct i2c_client *client, for (i = 0; i < 4; i++) { val = (ret >> (i * 2)) & 0x03; bit = (1 << i); - if (val == 0) { + if (val == VOLT_MONITOR_MODE) { data->tcpu_mask &= ~bit; + } else if (val == THERMAL_DIODE_MODE && i < 2) { + data->temp_mode |= bit; + data->vsen_mask &= ~(0x06 << (i * 2)); + } else if (val == THERMISTOR_MODE) { + data->vsen_mask &= ~(0x02 << (i * 2)); } else { - if (val == 0x1 || val == 0x2) - data->temp_mode |= bit; + /* Reserved */ + data->tcpu_mask &= ~bit; data->vsen_mask &= ~(0x06 << (i * 2)); } } |