diff options
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/nct1008.c | 53 |
1 files changed, 47 insertions, 6 deletions
diff --git a/drivers/misc/nct1008.c b/drivers/misc/nct1008.c index 748697a64ba9..1ae425ceb6df 100644 --- a/drivers/misc/nct1008.c +++ b/drivers/misc/nct1008.c @@ -121,6 +121,7 @@ static int nct1008_get_temp(struct device *dev, u8 *pTemp) else *pTemp = max(temp1, temp); + dev_dbg(dev, "\n %s: ret temp=%dC ", __func__, *pTemp); return 0; error: dev_err(&client->dev, "\n error in file=: %s %s() line=%d: " @@ -537,7 +538,7 @@ static irqreturn_t nct1008_irq(int irq, void *dev_id) return IRQ_HANDLED; } -static void nct1008_power_control(struct nct1008_data* data, bool is_enable) +static void nct1008_power_control(struct nct1008_data *data, bool is_enable) { int ret; if (!data->nct_reg) { @@ -617,15 +618,18 @@ static int __devinit nct1008_configure_sensor(struct nct1008_data* data) /* setup alarm */ hi_limit = pdata->thermal_zones[0]; - err = i2c_smbus_write_byte_data(client, EXT_TEMP_LO_LIMIT_HI_BYTE_WR, 0); + err = i2c_smbus_write_byte_data(client, + EXT_TEMP_LO_LIMIT_HI_BYTE_WR, 0); if (err) goto error; - err = i2c_smbus_write_byte_data(client, LOCAL_TEMP_HI_LIMIT_WR, NCT1008_MAX_TEMP); + err = i2c_smbus_write_byte_data(client, + LOCAL_TEMP_HI_LIMIT_WR, NCT1008_MAX_TEMP); if (err) goto error; - err = i2c_smbus_write_byte_data(client, LOCAL_TEMP_LO_LIMIT_WR, 0); + err = i2c_smbus_write_byte_data(client, + LOCAL_TEMP_LO_LIMIT_WR, 0); if (err) goto error; } else { @@ -707,12 +711,42 @@ static int __devinit nct1008_configure_irq(struct nct1008_data *data) DRIVER_NAME, data); } +static unsigned int get_ext_mode_delay_ms(unsigned int conv_rate) +{ + switch (conv_rate) { + case 0: + return 16000; + case 1: + return 8000; + case 2: + return 4000; + case 3: + return 2000; + case 4: + return 1000; + case 5: + return 500; + case 6: + return 250; + case 7: + return 125; + case 9: + return 32; + case 10: + return 16; + case 8: + default: + return 63; + } +} + static int __devinit nct1008_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct nct1008_data *data; int err; u8 temperature; + unsigned int delay; data = kzalloc(sizeof(struct nct1008_data), GFP_KERNEL); @@ -743,6 +777,13 @@ static int __devinit nct1008_probe(struct i2c_client *client, nct1008_enable(client); /* sensor is running */ + /* switch to extended mode reports correct temperature + * from next measurement cycle */ + if (data->plat_data.ext_range) { + delay = get_ext_mode_delay_ms( + data->plat_data.conv_rate); + msleep(delay); /* 63msec for default conv rate 0x8 */ + } err = nct1008_get_temp(&data->client->dev, &temperature); if (err) { pr_err("%s: get temp fail(%d)", __func__, err); @@ -829,5 +870,5 @@ static void __exit nct1008_exit(void) MODULE_DESCRIPTION("Temperature sensor driver for OnSemi NCT1008"); MODULE_LICENSE("GPL"); -module_init (nct1008_init); -module_exit (nct1008_exit); +module_init(nct1008_init); +module_exit(nct1008_exit); |