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Commit 16b77022 authored by Bhaumik Bhatt's avatar Bhaumik Bhatt
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mhi: core: add a power down status to notify controller 



MHI controller can use power down status to take desired action
when core layer wants to issue a wake up in cases where it is
powering down.

Change-Id: I55c30b2a8bd703dcd6c994220b64023617540ed0
Signed-off-by: default avatarBhaumik Bhatt <bbhatt@codeaurora.org>
parent 771efa0c

drivers/bus/mhi/core/mhi_pm.c

+2 −0
Original line number Diff line number Diff line
@@ -564,6 +564,8 @@ static void mhi_pm_disable_transition(struct mhi_controller *mhi_cntrl, 
		mhi_cntrl->ee = MHI_EE_DISABLE_TRANSITION;

		mhi_cntrl->dev_state = MHI_STATE_RESET;

	}

	/* notify controller of power down regardless of state transitions */

	mhi_cntrl->power_down = true;

	write_unlock_irq(&mhi_cntrl->pm_lock);



	/* wake up any threads waiting for state transitions */

include/linux/mhi.h

+1 −0
Original line number Diff line number Diff line
@@ -327,6 +327,7 @@ struct mhi_controller { 
	enum MHI_DEBUG_LEVEL log_lvl;



	/* controller specific data */

	bool power_down;

	void *priv_data;

	void *log_buf;

	struct dentry *dentry;