github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-31 03:27:03 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

bus: mhi: host: Address pending BW requests for legacy mode

Browse Source 
It cannot be guaranteed that certain legacy mode controllers stay
in M0 while a BW request is being processed. Ensure that those
pending BW requests are addressed when M0 entry occurs after a BW
request is processed but not responded to.

Change-Id: I15ebc4e61e59ceeb5e8740b60bb95606945b0b3c
Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Signed-off-by: Lazarus Motha <quic_lmotha@quicinc.com>
This commit is contained in:
Bhaumik Bhatt 2021-09-16 16:36:12 -07:00 committed by Lazarus Motha
parent b5c5f9c659
commit 2a3dece5e1
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/bus/mhi/host/pm.c
View File

@ -298,6 +298,8 @@ int mhi_pm_m0_transition(struct mhi_controller *mhi_cntrl)
if (mhi_cmd->ring.rp != mhi_cmd->ring.wp)
mhi_ring_cmd_db(mhi_cntrl, mhi_cmd);
spin_unlock_irq(&mhi_cmd->lock);
/* ring misc doorbells for certain controllers */
mhi_misc_dbs_pending(mhi_cntrl);
}
/* Ring channel DB registers */