diff options
| author | Ruibin Chang <Ruibin.Chang@ite.com.tw> | 2021-12-01 11:55:58 +0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-12-02 00:53:10 +0000 |
| commit | 842ea9739676871d955fb21bde36d62c901ef715 (patch) | |
| tree | 00117efca029f555fa8a2cd425483776c6fc376d | |
| parent | f6ce56e1b09c5b77f383cd0c1363637ce681223a (diff) | |
| download | chrome-ec-842ea9739676871d955fb21bde36d62c901ef715.tar.gz | |
zephyr: enable tachometer for fan
Enable tachometer for fan.
BRANCH=none
BUG=none
TEST=on board it8xxx2_evb,
console cmd "fanset 3000" -> fan spin and "faninfo"
Actual: 3150 rpm
Target: 3000 rpm
Duty: 36%%
Status: 2 (locked)
Mode: rpm
Auto: no
Enable: yes
Cq-Depend: chromium:3307946
Change-Id: I876649ad9c5d75ffaa064b13b3defe39e74bb418
Signed-off-by: Ruibin Chang <Ruibin.Chang@ite.com.tw>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3255094
Reviewed-by: Denis Brockus <dbrockus@chromium.org>
Reviewed-by: Keith Short <keithshort@chromium.org>
Commit-Queue: Keith Short <keithshort@chromium.org>
| -rw-r--r-- | zephyr/boards/riscv/it8xxx2_evb/it8xxx2_evb.dts | 20 | ||||
| -rw-r--r-- | zephyr/boards/riscv/it8xxx2_evb/it8xxx2_evb_defconfig | 3 | ||||
| -rw-r--r-- | zephyr/projects/it8xxx2_evb/prj.conf | 3 |
3 files changed, 26 insertions, 0 deletions
diff --git a/zephyr/boards/riscv/it8xxx2_evb/it8xxx2_evb.dts b/zephyr/boards/riscv/it8xxx2_evb/it8xxx2_evb.dts index 173a33b697..5bde541a6f 100644 --- a/zephyr/boards/riscv/it8xxx2_evb/it8xxx2_evb.dts +++ b/zephyr/boards/riscv/it8xxx2_evb/it8xxx2_evb.dts @@ -211,6 +211,19 @@ frequency = <30000>; }; }; + + named-fans { + compatible = "named-fans"; + + fan_0 { + label = "FAN_0"; + pwm = <&pwm_fan>; + tach = <&tach0>; + rpm_min = <1500>; + rpm_start = <1500>; + rpm_max = <6500>; + }; + }; }; &adc0 { @@ -258,3 +271,10 @@ status = "okay"; prescaler-cx = <PWM_PRESCALER_C4>; }; + +/* fan tachometer sensor */ +&tach0 { + status = "okay"; + channel = <IT8XXX2_TACH_CHANNEL_A>; + pulses-per-round = <2>; +}; diff --git a/zephyr/boards/riscv/it8xxx2_evb/it8xxx2_evb_defconfig b/zephyr/boards/riscv/it8xxx2_evb/it8xxx2_evb_defconfig index d667fac5a1..a6ddf649b7 100644 --- a/zephyr/boards/riscv/it8xxx2_evb/it8xxx2_evb_defconfig +++ b/zephyr/boards/riscv/it8xxx2_evb/it8xxx2_evb_defconfig @@ -31,6 +31,9 @@ CONFIG_PWM_SHELL=n CONFIG_PLATFORM_EC_PWM=y CONFIG_PWM_ITE_IT8XXX2=y +# Fan +CONFIG_SENSOR=y + # GPIO Controller CONFIG_GPIO=y CONFIG_GPIO_ITE_IT8XXX2=y diff --git a/zephyr/projects/it8xxx2_evb/prj.conf b/zephyr/projects/it8xxx2_evb/prj.conf index 23a7ab2275..ffc59fb420 100644 --- a/zephyr/projects/it8xxx2_evb/prj.conf +++ b/zephyr/projects/it8xxx2_evb/prj.conf @@ -16,6 +16,9 @@ CONFIG_PLATFORM_EC_ADC=y # I2C CONFIG_PLATFORM_EC_I2C=y +# Fan +CONFIG_PLATFORM_EC_FAN=y + # Flash CONFIG_PLATFORM_EC_FLASH_CROS=y CONFIG_PLATFORM_EC_CONSOLE_CMD_FLASH=y |