It is possible that the host may be suspending or suspended and may not allow an outgoing device wake assert immediately if a client has requested for it. Ensure that the host wakes up and allows for it so the client does not have to wait for an external trigger or an outgoing packet to be queued for the host resume to occur. Signed-off-by: Bhaumik Bhatt <bbhatt@xxxxxxxxxxxxxx> --- drivers/bus/mhi/core/pm.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/bus/mhi/core/pm.c b/drivers/bus/mhi/core/pm.c index 5e3994e..74c5cb1 100644 --- a/drivers/bus/mhi/core/pm.c +++ b/drivers/bus/mhi/core/pm.c @@ -1115,6 +1115,9 @@ void mhi_device_get(struct mhi_device *mhi_dev) mhi_dev->dev_wake++; read_lock_bh(&mhi_cntrl->pm_lock); + if (MHI_PM_IN_SUSPEND_STATE(mhi_cntrl->pm_state)) + mhi_trigger_resume(mhi_cntrl, false); + mhi_cntrl->wake_get(mhi_cntrl, true); read_unlock_bh(&mhi_cntrl->pm_lock); } -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project
