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/* Copyright 2021 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/ {
fans {
compatible = "cros-ec,fans";
fan_0 {
pwms = <&pwm0 0 PWM_KHZ(25) PWM_POLARITY_NORMAL>;
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 = <&ta1_1_in_gp40>;
pinctrl-names = "default";
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 */
};
&pwm0_gpc3 {
drive-open-drain;
};
&pwm0 {
status = "okay";
pinctrl-0 = <&pwm0_gpc3>;
pinctrl-names = "default";
};
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