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/* Copyright 2021 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/ {
named-fans {
compatible = "named-fans";
fan_0 {
label = "FAN_0";
pwm = <&pwm_fan>;
rpm_min = <1000>;
rpm_start = <1000>;
rpm_max = <5200>;
tach = <&tach1>;
pgood_gpio = <&gpio_pgood_fan>;
};
};
};
/* Tachometer for fan speed measurement */
&tach1 {
status = "okay";
pinctrl-0 = <&alt3_ta1_sl1>; /* Use TA1 as input pin */
port = <NPCX_TACH_PORT_A>; /* port-A is selected */
sample-clk = <NPCX_TACH_FREQ_LFCLK>; /* Use LFCLK as sampling clock */
pulses-per-round = <2>; /* number of pulses per round of encoder */
};
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