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spring: Update device type on video power change

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This is needed to properly notify kernel of power changes.

BUG=chrome-os-partner:19925
TEST=Attach/remove power from video dongle, and see device type changes.
BRANCH=spring

Change-Id: Ic91ad43ed934be021689c4c4557914e6163e06f8
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/57569
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
This commit is contained in:
Vic Yang
2013-06-05 13:43:39 +08:00
committed by ChromeBot
parent 72a69f6669
commit d07b0d5a5f
1 changed files with 4 additions and 0 deletions
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4
common/extpower_usb.c
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@@ -712,9 +712,13 @@ static void usb_monitor_detach(void)
vbus = adc_read_channel(ADC_CH_USB_VBUS_SNS);
if (get_video_power() && vbus > 4000) {
set_video_power(0);
current_dev_type |= TSU6721_TYPE_VBUS_DEBOUNCED;
keyboard_send_battery_key();
} else if (!get_video_power() && vbus <= 4000) {
set_pwm_duty_cycle(100);
set_video_power(1);
current_dev_type &= ~TSU6721_TYPE_VBUS_DEBOUNCED;
keyboard_send_battery_key();
}
}
DECLARE_HOOK(HOOK_SECOND, usb_monitor_detach, HOOK_PRIO_DEFAULT);