Merge "mhi: core: send critical channels early completion events" (155c4ddb) · Commits · e / devices / android_kernel_xiaomi_sm6125

drivers/bus/mhi/core/mhi_main.c

+16 −0

Original line number	Original line	Diff line number	Diff line
	@@ -722,6 +722,8 @@ int mhi_early_notify_device(struct device dev, void data)
	{		{
	struct mhi_device *mhi_dev;		struct mhi_device *mhi_dev;
	struct mhi_controller *mhi_cntrl;		struct mhi_controller *mhi_cntrl;
			struct mhi_chan *mhi_chan;
			int dir;

	if (dev->bus != &mhi_bus_type)		if (dev->bus != &mhi_bus_type)
	return 0;		return 0;
	@@ -737,6 +739,20 @@ int mhi_early_notify_device(struct device dev, void data)

	mhi_notify(mhi_dev, MHI_CB_FATAL_ERROR);		mhi_notify(mhi_dev, MHI_CB_FATAL_ERROR);

			/* send completions to any critical channels waiting on them */
			for (dir = 0; dir < 2; dir++) {
			mhi_chan = dir ? mhi_dev->ul_chan : mhi_dev->dl_chan;

			if (!mhi_chan)
			continue;

			/* wake all threads waiting for completion */
			write_lock_irq(&mhi_chan->lock);
			mhi_chan->ccs = MHI_EV_CC_INVALID;
			complete_all(&mhi_chan->completion);
			write_unlock_irq(&mhi_chan->lock);
			}

	return 0;		return 0;
	}		}