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| author | Wai-Hong Tam <waihong@google.com> | 2021-03-19 14:16:53 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-03-22 18:23:32 +0000 |
| commit | 9b3facc3143c345c666a4fd59815f1883119ec8a (patch) | |
| tree | 8408a7c50b2393f86b4730096d9f377811b14bcb /zephyr/projects/trogdor/lazor/prj.conf | |
| parent | 8adc624080ac8af063e9a18b9b4273826f7aff9d (diff) | |
| download | chrome-ec-9b3facc3143c345c666a4fd59815f1883119ec8a.tar.gz | |
zephyr: lazor: enable PWM
Enable PWM. Lazor uses PWM 3 and 5 for keyboard backlight and
display backlight.
The display backlight can't be tested yet. The EN pin of the
LED driver IC is connected to an AND gate. One of its input is
an AP's GPIO. Since the AP power sequence is not ready yet, the
IC is disabled.
BUG=b:182398910
BRANCH=None
TEST=Tested on Lazor:
uart:~$ gpioset EN_PP5000_A 1
uart:~$ pwmduty
PWM channels:
0: disabled
1: disabled
uart:~$ pwmduty 0 50 # The keyboard backlight is on
Setting channel 0 to 50
0: 50%
uart:~$ pwmduty 0 30
Setting channel 0 to 30
0: 30%
uart:~$ pwmduty 0 100
Setting channel 0 to 100
0: 100%
uart:~$ pwmduty 0 -1
0: disabled
Change-Id: I73dca658b54fd6d4bd7668e85d60dff915faf671
Signed-off-by: Wai-Hong Tam <waihong@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2776215
Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>
Commit-Queue: Jack Rosenthal <jrosenth@chromium.org>
Diffstat (limited to 'zephyr/projects/trogdor/lazor/prj.conf')
| -rw-r--r-- | zephyr/projects/trogdor/lazor/prj.conf | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/zephyr/projects/trogdor/lazor/prj.conf b/zephyr/projects/trogdor/lazor/prj.conf index 6973069d8a..a2108308e2 100644 --- a/zephyr/projects/trogdor/lazor/prj.conf +++ b/zephyr/projects/trogdor/lazor/prj.conf @@ -13,6 +13,11 @@ CONFIG_ADC=y CONFIG_ADC_SHELL=n CONFIG_I2C=y +# PWM +CONFIG_PWM=y +CONFIG_PWM_SHELL=n +CONFIG_PLATFORM_EC_PWM=y + # Application Processor is Qualcomm SC7180 CONFIG_AP_ARM_QUALCOMM_SC7180=y |