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hwmon: (it87) Don't configure 16 bit fan counters it not necessary

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On IT8728F, IT8771E, and IT8772E, fans counters are always 16 bit
and don't need to be configured for it.

Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck 2015-02-24 06:32:40 -08:00
parent 0ea2f1db8e
commit fd044868e8
1 changed files with 6 additions and 3 deletions
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9
drivers/hwmon/it87.c
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@ -2463,9 +2463,12 @@ static void it87_init_device(struct platform_device *pdev)
}
data->has_fan = (data->fan_main_ctrl >> 4) & 0x07;
/* Set tachometers to 16-bit mode if needed, IT8603E (and IT8728F?)
* has it by default */
if (has_16bit_fans(data) && data->type != it8603) {
/*
* Set tachometers to 16-bit mode if needed. IT8603E, IT8728F,
* IT8771E (guesswork), and IT8772E have it by default.
*/
if (has_16bit_fans(data) && data->type != it8603 && data->type != it8728
&& data->type != it8771 && data->type != it8772) {
tmp = it87_read_value(data, IT87_REG_FAN_16BIT);
if (~tmp & 0x07 & data->has_fan) {
dev_dbg(&pdev->dev,