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hwmon: (nct6775) Detect and report additional temperature sources

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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>
This commit is contained in:
Guenter Roeck 2012-12-04 08:03:37 -08:00
parent bbd8decd41
commit 8e9285b0bb
1 changed files with 33 additions and 0 deletions
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33
drivers/hwmon/nct6775.c
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@ -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++) {