diff options
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/tmp421.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/hwmon/tmp421.c b/drivers/hwmon/tmp421.c index b963a369c5ab..a4ac6e16d592 100644 --- a/drivers/hwmon/tmp421.c +++ b/drivers/hwmon/tmp421.c @@ -29,6 +29,7 @@ static const unsigned short normal_i2c[] = { 0x2a, 0x4c, 0x4d, 0x4e, 0x4f, enum chips { tmp421, tmp422, tmp423, tmp441, tmp442 }; +#define MAX_CHANNELS 4 /* The TMP421 registers */ #define TMP421_STATUS_REG 0x08 #define TMP421_CONFIG_REG_1 0x09 @@ -36,8 +37,8 @@ enum chips { tmp421, tmp422, tmp423, tmp441, tmp442 }; #define TMP421_MANUFACTURER_ID_REG 0xFE #define TMP421_DEVICE_ID_REG 0xFF -static const u8 TMP421_TEMP_MSB[4] = { 0x00, 0x01, 0x02, 0x03 }; -static const u8 TMP421_TEMP_LSB[4] = { 0x10, 0x11, 0x12, 0x13 }; +static const u8 TMP421_TEMP_MSB[MAX_CHANNELS] = { 0x00, 0x01, 0x02, 0x03 }; +static const u8 TMP421_TEMP_LSB[MAX_CHANNELS] = { 0x10, 0x11, 0x12, 0x13 }; /* Flags */ #define TMP421_CONFIG_SHUTDOWN 0x40 @@ -89,7 +90,7 @@ MODULE_DEVICE_TABLE(of, tmp421_of_match); struct tmp421_data { struct i2c_client *client; struct mutex update_lock; - u32 temp_config[5]; + u32 temp_config[MAX_CHANNELS + 1]; struct hwmon_channel_info temp_info; const struct hwmon_channel_info *info[2]; struct hwmon_chip_info chip; @@ -97,7 +98,7 @@ struct tmp421_data { unsigned long last_updated; unsigned long channels; u8 config; - s16 temp[4]; + s16 temp[MAX_CHANNELS]; }; static int temp_from_raw(u16 reg, bool extended) |