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Commit 49401bbf authored by Gauri Joshi's avatar Gauri Joshi
Browse files

msm: ep_pcie: Changes to acquire wakelock as part of PERST IRQ 



Changes to acquire wakelock as part of PERST deassert
in non enumerated scenario.

Change-Id: Ica992e12fe827e29416fbe56469d7be8b92ff5c5
Signed-off-by: default avatarSubramanian Ananthanarayanan <skananth@codeaurora.org>
Signed-off-by: default avatarGauri Joshi <gaurjosh@codeaurora.org>
parent 4966230a

drivers/platform/msm/ep_pcie/ep_pcie_core.c

+12 −0
Original line number Diff line number Diff line
@@ -2330,6 +2330,18 @@ static irqreturn_t ep_pcie_handle_perst_irq(int irq, void *data) 
			"PCIe V%d: PCIe is not enumerated yet; PERST is %sasserted\n",

			dev->rev, perst ? "de" : "");

		if (perst) {

			/*

			 * Hold a wakelock to avoid delay during

			 * link enablement in PCIE layer in non

			 * enumerated scenario.

			 */

			if (!atomic_read(&dev->ep_pcie_dev_wake)) {

				pm_stay_awake(&dev->pdev->dev);

				atomic_set(&dev->ep_pcie_dev_wake, 1);

				EP_PCIE_DBG(dev,

					"PCIe V%d: Acquired wakelock\n",

					dev->rev);

			}

			/* start work for link enumeration with the host side */

			schedule_work(&dev->handle_perst_work);

		} else {