Commit fd044868 authored by Guenter Roeck's avatar Guenter Roeck
Browse files

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



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

Reviewed-by: default avatarJean Delvare <jdelvare@suse.de>
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 0ea2f1db

drivers/hwmon/it87.c

+6 −3
Original line number Diff line number Diff line
@@ -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,