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Commit 33f7fd24 authored by Rama Krishna Phani A's avatar Rama Krishna Phani A
Browse files

msm: mhi_dev: Acquire wakelock to avoid device suspend 



Acquire wakelock in MHI ISR to avoid device
suspend while MHI device is communicating with HOST.

Change-Id: I6ae35c701502aabbc6a001e91bc7a92b2963b98d
Signed-off-by: default avatarRama Krishna Phani A <rphani@codeaurora.org>
parent e701f80b

drivers/platform/msm/mhi_dev/mhi.c

+6 −0
Original line number Diff line number Diff line
@@ -1543,6 +1543,12 @@ static irqreturn_t mhi_dev_isr(int irq, void *dev_id) 
{

	struct mhi_dev *mhi = dev_id;



	if (!atomic_read(&mhi->mhi_dev_wake)) {

		pm_stay_awake(mhi->dev);

		atomic_set(&mhi->mhi_dev_wake, 1);

		mhi_log(MHI_MSG_VERBOSE, "acquiring mhi wakelock in ISR\n");

	}



	disable_irq_nosync(mhi->mhi_irq);

	schedule_work(&mhi->chdb_ctrl_work);

	mhi_log(MHI_MSG_VERBOSE, "mhi irq triggered\n");