diff options
Diffstat (limited to 'zephyr/projects/intelrvp/mtlrvp/mtlrvpp_npcx/fan.dts')
| -rw-r--r-- | zephyr/projects/intelrvp/mtlrvp/mtlrvpp_npcx/fan.dts | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/zephyr/projects/intelrvp/mtlrvp/mtlrvpp_npcx/fan.dts b/zephyr/projects/intelrvp/mtlrvp/mtlrvpp_npcx/fan.dts new file mode 100644 index 0000000000..cf85dd3413 --- /dev/null +++ b/zephyr/projects/intelrvp/mtlrvp/mtlrvpp_npcx/fan.dts @@ -0,0 +1,36 @@ +/* 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"; +}; |