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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 = <&pwm5 5 PWM_KHZ(25) PWM_POLARITY_NORMAL>;
tach = <&tach2>;
rpm_min = <2500>;
rpm_start = <2500>;
rpm_max = <4100>;
enable_gpio = <&gpio_fan_enable>;
};
};
};
&pwm5_gpb7 {
drive-open-drain;
};
/* pwm for fan */
&pwm5 {
status = "okay";
pinctrl-0 = <&pwm5_gpb7>;
pinctrl-names = "default";
};
/* Tachometer for fan speed measurement */
&tach2 {
status = "okay";
pinctrl-0 = <&ta2_1_in_gp73>;
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 */
};
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