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Commit 04e87d8b authored by Veerabhadrarao Badiganti's avatar Veerabhadrarao Badiganti
Browse files

msm: mhi_dev: Process the PM_RST_DEAST event in the caller context 



With the commit <37ea867103f2>("msm: ep-pcie: Use threaded irq for
PERST de-assertion handling"), PCIe driver notifies the PM_RST_DEAST
event in threadedIRQ context. Process this event in the same
context so that we can finish link initialization and training as
quickly as possible.

Change-Id: If920fd9b653d6ae82cea599effb2d912a9b08174
Signed-off-by: default avatarVeerabhadrarao Badiganti <vbadigan@codeaurora.org>
parent 31434512

drivers/platform/msm/mhi_dev/mhi_sm.c

+12 −1
Original line number Diff line number Diff line
@@ -1407,7 +1407,18 @@ void mhi_dev_sm_pcie_handler(struct ep_pcie_notify *notify) 
		mhi_sm_ctx->stats.rst_deast_event_cnt++;

		MHI_SM_DBG("Hold wake for perst deassert event\n");

		pm_stay_awake(mhi->dev);

		break;



		atomic_inc(&mhi_sm_ctx->pending_pcie_events);

		dstate_change_evt->event = event;

		INIT_WORK(&dstate_change_evt->work, mhi_sm_pcie_event_manager);

		/*

		 * Link init has to be completed as quicly as possible.

		 * Since this gets inovked from threaded IRQ context, do

		 * all processing in the same context, so that we don't run

		 * into any scheduling letencies.

		 */

		mhi_sm_pcie_event_manager(&dstate_change_evt->work);

		goto exit;

	case EP_PCIE_EVENT_PM_D0:

		mhi_sm_ctx->stats.d0_event_cnt++;