diff options
Diffstat (limited to 'drivers/hwmon/lm93.c')
| -rw-r--r-- | drivers/hwmon/lm93.c | 74 |
1 files changed, 39 insertions, 35 deletions
diff --git a/drivers/hwmon/lm93.c b/drivers/hwmon/lm93.c index b40f34cdb3c..a6f46058b1b 100644 --- a/drivers/hwmon/lm93.c +++ b/drivers/hwmon/lm93.c @@ -354,12 +354,12 @@ static const unsigned long lm93_vin_val_max[16] = { static unsigned LM93_IN_FROM_REG(int nr, u8 reg) { - const long uV_max = lm93_vin_val_max[nr] * 1000; - const long uV_min = lm93_vin_val_min[nr] * 1000; + const long uv_max = lm93_vin_val_max[nr] * 1000; + const long uv_min = lm93_vin_val_min[nr] * 1000; - const long slope = (uV_max - uV_min) / + const long slope = (uv_max - uv_min) / (lm93_vin_reg_max[nr] - lm93_vin_reg_min[nr]); - const long intercept = uV_min - slope * lm93_vin_reg_min[nr]; + const long intercept = uv_min - slope * lm93_vin_reg_min[nr]; return (slope * reg + intercept + 500) / 1000; } @@ -371,20 +371,20 @@ static unsigned LM93_IN_FROM_REG(int nr, u8 reg) static u8 LM93_IN_TO_REG(int nr, unsigned val) { /* range limit */ - const long mV = clamp_val(val, + const long mv = clamp_val(val, lm93_vin_val_min[nr], lm93_vin_val_max[nr]); /* try not to lose too much precision here */ - const long uV = mV * 1000; - const long uV_max = lm93_vin_val_max[nr] * 1000; - const long uV_min = lm93_vin_val_min[nr] * 1000; + const long uv = mv * 1000; + const long uv_max = lm93_vin_val_max[nr] * 1000; + const long uv_min = lm93_vin_val_min[nr] * 1000; /* convert */ - const long slope = (uV_max - uV_min) / + const long slope = (uv_max - uv_min) / (lm93_vin_reg_max[nr] - lm93_vin_reg_min[nr]); - const long intercept = uV_min - slope * lm93_vin_reg_min[nr]; + const long intercept = uv_min - slope * lm93_vin_reg_min[nr]; - u8 result = ((uV - intercept + (slope/2)) / slope); + u8 result = ((uv - intercept + (slope/2)) / slope); result = clamp_val(result, lm93_vin_reg_min[nr], lm93_vin_reg_max[nr]); return result; @@ -393,10 +393,10 @@ static u8 LM93_IN_TO_REG(int nr, unsigned val) /* vid in mV, upper == 0 indicates low limit, otherwise upper limit */ static unsigned LM93_IN_REL_FROM_REG(u8 reg, int upper, int vid) { - const long uV_offset = upper ? (((reg >> 4 & 0x0f) + 1) * 12500) : + const long uv_offset = upper ? (((reg >> 4 & 0x0f) + 1) * 12500) : (((reg >> 0 & 0x0f) + 1) * -25000); - const long uV_vid = vid * 1000; - return (uV_vid + uV_offset + 5000) / 10000; + const long uv_vid = vid * 1000; + return (uv_vid + uv_offset + 5000) / 10000; } #define LM93_IN_MIN_FROM_REG(reg, vid) LM93_IN_REL_FROM_REG((reg), 0, (vid)) @@ -409,13 +409,13 @@ static unsigned LM93_IN_REL_FROM_REG(u8 reg, int upper, int vid) */ static u8 LM93_IN_REL_TO_REG(unsigned val, int upper, int vid) { - long uV_offset = vid * 1000 - val * 10000; + long uv_offset = vid * 1000 - val * 10000; if (upper) { - uV_offset = clamp_val(uV_offset, 12500, 200000); - return (u8)((uV_offset / 12500 - 1) << 4); + uv_offset = clamp_val(uv_offset, 12500, 200000); + return (u8)((uv_offset / 12500 - 1) << 4); } else { - uV_offset = clamp_val(uV_offset, -400000, -25000); - return (u8)((uV_offset / -25000 - 1) << 0); + uv_offset = clamp_val(uv_offset, -400000, -25000); + return (u8)((uv_offset / -25000 - 1) << 0); } } @@ -818,8 +818,9 @@ static u8 lm93_read_byte(struct i2c_client *client, u8 reg) if (value >= 0) { return value; } else { - dev_warn(&client->dev, "lm93: read byte data failed, " - "address 0x%02x.\n", reg); + dev_warn(&client->dev, + "lm93: read byte data failed, address 0x%02x.\n", + reg); mdelay(i + 3); } @@ -838,8 +839,9 @@ static int lm93_write_byte(struct i2c_client *client, u8 reg, u8 value) result = i2c_smbus_write_byte_data(client, reg, value); if (result < 0) - dev_warn(&client->dev, "lm93: write byte data failed, " - "0x%02x at address 0x%02x.\n", value, reg); + dev_warn(&client->dev, + "lm93: write byte data failed, 0x%02x at address 0x%02x.\n", + value, reg); return result; } @@ -854,8 +856,9 @@ static u16 lm93_read_word(struct i2c_client *client, u8 reg) if (value >= 0) { return value; } else { - dev_warn(&client->dev, "lm93: read word data failed, " - "address 0x%02x.\n", reg); + dev_warn(&client->dev, + "lm93: read word data failed, address 0x%02x.\n", + reg); mdelay(i + 3); } @@ -874,8 +877,9 @@ static int lm93_write_word(struct i2c_client *client, u8 reg, u16 value) result = i2c_smbus_write_word_data(client, reg, value); if (result < 0) - dev_warn(&client->dev, "lm93: write word data failed, " - "0x%04x at address 0x%02x.\n", value, reg); + dev_warn(&client->dev, + "lm93: write word data failed, 0x%04x at address 0x%02x.\n", + value, reg); return result; } @@ -898,8 +902,8 @@ static void lm93_read_block(struct i2c_client *client, u8 fbn, u8 *values) if (result == lm93_block_read_cmds[fbn].len) { break; } else { - dev_warn(&client->dev, "lm93: block read data failed, " - "command 0x%02x.\n", + dev_warn(&client->dev, + "lm93: block read data failed, command 0x%02x.\n", lm93_block_read_cmds[fbn].cmd); mdelay(i + 3); } @@ -2672,8 +2676,8 @@ static void lm93_init_client(struct i2c_client *client) return; } - dev_warn(&client->dev, "timed out waiting for sensor " - "chip to signal ready!\n"); + dev_warn(&client->dev, + "timed out waiting for sensor chip to signal ready!\n"); } /* Return 0 if detection is successful, -ENODEV otherwise */ @@ -2733,12 +2737,12 @@ static int lm93_probe(struct i2c_client *client, dev_dbg(&client->dev, "using SMBus block data transactions\n"); update = lm93_update_client_full; } else if ((LM93_SMBUS_FUNC_MIN & func) == LM93_SMBUS_FUNC_MIN) { - dev_dbg(&client->dev, "disabled SMBus block data " - "transactions\n"); + dev_dbg(&client->dev, + "disabled SMBus block data transactions\n"); update = lm93_update_client_min; } else { - dev_dbg(&client->dev, "detect failed, " - "smbus byte and/or word data not supported!\n"); + dev_dbg(&client->dev, + "detect failed, smbus byte and/or word data not supported!\n"); return -ENODEV; } |