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| author | Vic Yang <victoryang@chromium.org> | 2013-05-25 11:52:02 +0800 |
|---|---|---|
| committer | ChromeBot <chrome-bot@google.com> | 2013-05-28 08:51:35 -0700 |
| commit | a7979bac1a17f6bc381663e7a3f691c49f375c65 (patch) | |
| tree | c0a3bfd344b117b6efe4a4936a2fc5f7e4e20ea0 | |
| parent | c3aa27602647069d21a200d3ff4b8f14bd2c7a26 (diff) | |
| download | chrome-ec-a7979bac1a17f6bc381663e7a3f691c49f375c65.tar.gz | |
spring: Avoid over-current on the same PWM duty cycle
While in fast mode, we step on the same PWM duty cycle which caused
over-current. We should avoid this.
BUG=chrome-os-partner:18301
TEST=None
BRANCH=spring
Change-Id: I0ff29d47aa52d4e306c84e35ef0753f680403bc4
Original-Change-Id: Ib22eb7244d1f6173d4486dce7b85a55678318490
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/56675
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
| -rw-r--r-- | board/spring/usb_charging.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/board/spring/usb_charging.c b/board/spring/usb_charging.c index 5715431fcc..e48d25906e 100644 --- a/board/spring/usb_charging.c +++ b/board/spring/usb_charging.c @@ -318,8 +318,8 @@ static int board_pwm_get_next_lower(void) if (current_limit_mode == LIMIT_AGGRESSIVE) { if (pwm_fast_mode && - fast_next >= nominal_pwm_duty - PWM_CTRL_OC_MARGIN && - fast_next >= over_current_pwm_duty) + fast_next > nominal_pwm_duty - PWM_CTRL_OC_MARGIN && + fast_next > over_current_pwm_duty) return MAX(fast_next, 0); if (current_pwm_duty > nominal_pwm_duty - PWM_CTRL_OC_MARGIN && |