diff options
Diffstat (limited to 'zephyr/projects/brya/brya/fan.dts')
| -rw-r--r-- | zephyr/projects/brya/brya/fan.dts | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/zephyr/projects/brya/brya/fan.dts b/zephyr/projects/brya/brya/fan.dts new file mode 100644 index 0000000000..cccd6315bf --- /dev/null +++ b/zephyr/projects/brya/brya/fan.dts @@ -0,0 +1,29 @@ +/* Copyright 2022 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 = <2200>; + rpm_start = <2200>; + rpm_max = <4200>; + tach = <&tach1>; + enable_gpio = <&gpio_en_pp5000_fan>; + }; + }; +}; + +/* Tachemeter 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 */ +}; |