github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-08-01 03:59:40 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

dwc3-msm-core: Perform runtime resume with dwc3 dev instead of mdwc

Browse Source 
mdwc device (a600000.ssusb) is parent to dwc3 device (a600000.dwc3).
With stop host mode, commit b10349def39c ("usb: dwc3-msm: Handle
potential errors in dwc3_msm_resume") is resuming mdwc device instead
of dwc3 device which is updating usage count wrongly causing mdwc
device to stay as runtime active. This result into no runtime idle
schedule to put mdwc device into low power mode causing switching
from host mode to device mode failure.

Change-Id: I2f0a6ce06cef90b22bfb5b9a2e000857a5cc0281
Signed-off-by: Mayank Rana <quic_mrana@quicinc.com>
This commit is contained in:
Mayank Rana 2022-04-19 11:30:38 -07:00 committed by Wesley Cheng
parent 95442d514e
commit 15d7afdbd0
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/usb/dwc3/dwc3-msm-core.c
View File

@ -6343,9 +6343,10 @@ static int dwc3_otg_start_host(struct dwc3_msm *mdwc, int on)
msm_dwc3_perf_vote_update(mdwc, false);
cpu_latency_qos_remove_request(&mdwc->pm_qos_req_dma);
ret = pm_runtime_resume_and_get(mdwc->dev);
ret = pm_runtime_resume_and_get(&mdwc->dwc3->dev);
if (ret < 0) {
dev_err(mdwc->dev, "%s: pm_runtime_resume_and_get failed\n", __func__);
pm_runtime_set_suspended(&mdwc->dwc3->dev);
pm_runtime_set_suspended(mdwc->dev);
return ret;
}