From cf25291f1c71582c57e3696e00a911dfa9220059 Mon Sep 17 00:00:00 2001 From: Andrew Chant Date: Wed, 9 May 2018 11:23:09 -0700 Subject: [PATCH] sdm660-common: Change USB autosuspend delay to 7s by commandline. 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: Ic655f2ce6dec429510cc7c00452da4d49f2392b0 --- BoardConfigCommon.mk | 1 + 1 file changed, 1 insertion(+) diff --git a/BoardConfigCommon.mk b/BoardConfigCommon.mk index b681875f..ef40ae42 100644 --- a/BoardConfigCommon.mk +++ b/BoardConfigCommon.mk @@ -159,6 +159,7 @@ USE_DEVICE_SPECIFIC_IPACFG_MGR := true # Kernel BOARD_KERNEL_CMDLINE := console=ttyMSM0,115200,n8 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 += usbcore.autosuspend=7 BOARD_KERNEL_CMDLINE += loop.max_part=16 BOARD_KERNEL_BASE := 0x00000000 BOARD_KERNEL_PAGESIZE := 4096