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/* Copyright 2022 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 = <&pwm3 0 PWM_KHZ(30) PWM_POLARITY_NORMAL>;
rpm_min = <3200>;
rpm_start = <2200>;
rpm_max = <6600>;
tach = <&tach2>;
pgood_gpio = <&all_sys_pwrgd>;
enable_gpio = <&gpio_fan_control>;
};
};
};
/* Tachemeter for fan speed measurement */
&tach2 {
status = "okay";
pinctrl-0 = <&ta2_1_in_gp73>; /* TA2 input on GPIO73 */
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 */
};
&pwm3 {
status = "okay";
pinctrl-0 = <&pwm3_gp80>;
pinctrl-names = "default";
};
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