A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-08 12:58:12 -04:00
Code Issues Projects Releases Packages Wiki Activity

usb: dwc3-msm: Disable PHY wakeup IRQs on hibernation

Browse source 
There might be spurious HS PHY IRQ after USB bus has gone into
hibernation which leads to dwc3_msm_resume and in_lpm flag
getting cleared. Next when the restore from hibernation happens,
dwc3_msm_resume becomes a no-op but in reality, the HW resources
are all turned off. This leads to an unclocked access from
xhci_resume.
Fix this by disabling PHY wakeup IRQs on hibernation/pm_suspend
for automotive targets.

Change-Id: I753fb3593fca31f12406b9126f73f75520dab1b0
Signed-off-by: Ajay Agarwal <ajaya@codeaurora.org>
This commit is contained in:
Ajay Agarwal 2019-04-02 20:01:03 +05:30 • committed by Gerrit - the friendly Code Review server
commit f74b9dbcf4
1 changed files with 2 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

4
drivers/usb/dwc3/dwc3-msm.c
View file

@ -2965,11 +2965,11 @@ static int dwc3_msm_suspend(struct dwc3_msm *mdwc, bool force_power_collapse)
atomic_set(&dwc->in_lpm, 1);
/*
* with DCP or during cable disconnect, we dont require wakeup
* with the core in power collapse, we dont require wakeup
* using HS_PHY_IRQ or SS_PHY_IRQ. Hence enable wakeup only in
* case of host bus suspend and device bus suspend.
*/
if (mdwc->in_device_mode || mdwc->in_host_mode) {
if (!(mdwc->lpm_flags & MDWC3_POWER_COLLAPSE)) {
if (mdwc->use_pdc_interrupts) {
enable_usb_pdc_interrupt(mdwc, true);
} else {