| /* 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"; |
| |
| fan0: fan_0 { |
| pwms = <&pwm0 0 PWM_KHZ(25) PWM_POLARITY_NORMAL>; |
| rpm-min = <3100>; |
| rpm-start = <3100>; |
| rpm-max = <8000>; |
| tach = <&tach1>; |
| pgood-gpio = <&gpio_s0_pgood>; |
| }; |
| }; |
| }; |
| |
| /* Tachemeter 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"; |
| }; |
