diff options
| author |   Guenter Roeck <linux@roeck-us.net> | 2012-12-04 08:03:37 -0800 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2013-04-07 21:16:39 -0700 |
| commit | 8e9285b0bb2ab48924032147baa29699c0bbee7c (patch) | |
| tree | 7f0f65823f5a3d99b166d86b16ea3430b9c5721b /drivers/hwmon/nct6775.c | |
| parent | hwmon: (nct6775) Add support for weighted fan control (diff) | |
| download | linux-dev-8e9285b0bb2ab48924032147baa29699c0bbee7c.tar.xz linux-dev-8e9285b0bb2ab48924032147baa29699c0bbee7c.zip | |
hwmon: (nct6775) Detect and report additional temperature sources
Scan all temperature sources used for fan control and report if additional
monitoring registers are available.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon/nct6775.c')
| -rw-r--r-- | drivers/hwmon/nct6775.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c index f80ff823c28e..6d5859718113 100644 --- a/drivers/hwmon/nct6775.c +++ b/drivers/hwmon/nct6775.c @@ -3364,6 +3364,32 @@ nct6775_check_fan_inputs(const struct nct6775_sio_data *sio_data, return 0; } +static void add_temp_sensors(struct nct6775_data *data, const u16 *regp, + int *available, int *mask) +{ + int i; + u8 src; + + for (i = 0; i < data->pwm_num && *available; i++) { + int index; + + if (!regp[i]) + continue; + src = nct6775_read_value(data, regp[i]); + src &= 0x1f; + if (!src || (*mask & (1 << src))) + continue; + if (src >= data->temp_label_num || + !strlen(data->temp_label[src])) + continue; + + index = __ffs(*available); + nct6775_write_value(data, data->REG_TEMP_SOURCE[index], src); + *available &= ~(1 << index); + *mask |= 1 << src; + } +} + static int nct6775_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -3614,6 +3640,13 @@ static int nct6775_probe(struct platform_device *pdev) mask |= 1 << src; } + /* + * Now find unmonitored temperature registers and enable monitoring + * if additional monitoring registers are available. + */ + add_temp_sensors(data, data->REG_TEMP_SEL, &available, &mask); + add_temp_sensors(data, data->REG_WEIGHT_TEMP_SEL, &available, &mask); + mask = 0; s = NUM_TEMP_FIXED; /* First dynamic temperature attribute */ for (i = 0; i < num_reg_temp; i++) { |