MiPad4/android_device_xiaomi_sdm660-common
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sdm660-common: Change USB autosuspend delay to 7s by commandline.

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b/71936484 has audio accessories failing to connect
when there's a transition to suspend when they're attempting
to enumerate.

Avoid this problem by increasing autosuspend delay
from the default 2s to 7s.

The longest I've seen a device take to enumerate after
vbus is ~3 seconds, this gives a 2x margin.

Test: booted on Walleye, saw no more messages:
[  472.412555] c0   5675 msm-dwc3 a800000.ssusb: DWC3 in low power mode
between device connection and enumeration.

Bug: 71936484
Change-Id: Ie585f2ce5dec429510cc6c00452dc4d49f1372a0
This commit is contained in:
Andrew Chant 2018-05-09 11:23:09 -07:00 committed by OdSazib
parent c16a25e536
commit ea89963af3
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GPG key ID: 0954440B60470871
1 changed files with 1 additions and 0 deletions
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BoardConfigCommon.mk
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@ -149,6 +149,7 @@ USE_DEVICE_SPECIFIC_IPACFG_MGR := true
# Kernel
BOARD_KERNEL_CMDLINE := console=ttyMSM0,115200n8 androidboot.console=ttyMSM0 earlycon=msm_serial_dm,0xc170000 androidboot.hardware=qcom user_debug=31 msm_rtb.filter=0x37 ehci-hcd.park=3 lpm_levels.sleep_disabled=1 sched_enable_hmp=1 sched_enable_power_aware=1 service_locator.enable=1 swiotlb=1 androidboot.configfs=true androidboot.usbcontroller=a800000.dwc3
BOARD_KERNEL_CMDLINE += loop.max_part=16
BOARD_KERNEL_CMDLINE += usbcore.autosuspend=7
BOARD_KERNEL_BASE := 0x00000000
BOARD_KERNEL_PAGESIZE := 4096
BOARD_KERNEL_IMAGE_NAME := Image.gz-dtb