diff options
| author | Vic Yang <victoryang@chromium.org> | 2013-02-21 17:09:14 +0800 |
|---|---|---|
| committer | ChromeBot <chrome-bot@google.com> | 2013-02-21 21:16:44 -0800 |
| commit | 6492c99cca13e1a1fe00d83d0947b6fd1fcd310d (patch) | |
| tree | 8dccf2f4c8d1ce3f9af6a79c69fe613c45ad31a7 /board | |
| parent | 517d4d771b4d73adb5e189cca11fafa41ffba923 (diff) | |
| download | chrome-ec-6492c99cca13e1a1fe00d83d0947b6fd1fcd310d.tar.gz | |
spring: Tweak current limit and voltage threshold
Fine tune current limit and voltage threshold so that we don't hit
current limit so easily.
BUG=chrome-os-partner:14319
TEST=Manual on Spring
BRANCH=None
Change-Id: Ia9ccd13b9e7eac7cdee83d0f488a1a83c27318c0
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/43716
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Diffstat (limited to 'board')
| -rw-r--r-- | board/spring/usb_charging.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/board/spring/usb_charging.c b/board/spring/usb_charging.c index fa943c1fdb..5308553160 100644 --- a/board/spring/usb_charging.c +++ b/board/spring/usb_charging.c @@ -31,11 +31,11 @@ TSU6721_TYPE_JIG_UART_ON) /* PWM controlled current limit */ -#define I_LIMIT_500MA 85 +#define I_LIMIT_500MA 90 #define I_LIMIT_1000MA 75 -#define I_LIMIT_1500MA 50 -#define I_LIMIT_2000MA 35 -#define I_LIMIT_2400MA 25 +#define I_LIMIT_1500MA 60 +#define I_LIMIT_2000MA 50 +#define I_LIMIT_2400MA 35 #define I_LIMIT_3000MA 0 /* PWM control loop parameters */ @@ -146,9 +146,9 @@ static int board_apple_charger_current(void) vn = data[ADC_CH_USB_DN_SNS]; tsu6721_mux(TSU6721_MUX_AUTO); tsu6721_enable_interrupts(); - if (vp > 1200) + if (vp > 1215) type |= 0x2; - if (vn > 1200) + if (vn > 1215) type |= 0x1; return apple_charger_type[type]; |