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Commit 586ade7e authored by Sunil Paidimarri's avatar Sunil Paidimarri
Browse files

data-kernel: EMAC: Handle link status change after suspend 



Handle ink status change after A7 suspend.
Set PHY intr as wakeup-capable even when IPA pipes are connected.
Wakeup reason can be PHY link event or a RX packet.
Set a wakeup event to ensure 5000ms of time for processing.

Change-Id: I8c9d15d2f035f3ec71e6243091c7df742da04aba
CRs-Fixed: 2277005
Acked-by: default avatarRahul Kawadgave <rahulak@qti.qualcomm.com>
Signed-off-by: default avatarSunil Paidimarri <hisunil@codeaurora.org>
parent 156ce235

drivers/emac-dwc-eqos/DWC_ETH_QOS_platform.c

+28 −9
Original line number Diff line number Diff line
@@ -1709,6 +1709,13 @@ static INT DWC_ETH_QOS_suspend(struct platform_device *pdev, pm_message_t state) 
	if ((pdata->ipa_enabled && pdata->prv_ipa.ipa_offload_conn)) {

		pdata->power_down_type |= DWC_ETH_QOS_EMAC_INTR_WAKEUP;

		enable_irq_wake(pdata->irq_number);



		/* Set PHY intr as wakeup-capable to handle change in PHY link status after suspend */

		if (pdata->phy_intr_en && pdata->phy_irq && pdata->phy_wol_wolopts) {

			pmt_flags |= DWC_ETH_QOS_PHY_INTR_WAKEUP;

			enable_irq_wake(pdata->phy_irq);

		}



		return 0;

	}
@@ -1727,9 +1734,6 @@ static INT DWC_ETH_QOS_suspend(struct platform_device *pdev, pm_message_t state) 
	if (pdata->phy_intr_en && pdata->phy_irq && pdata->phy_wol_wolopts)

		pmt_flags |= DWC_ETH_QOS_PHY_INTR_WAKEUP;



	if (pdata->ipa_enabled && !pdata->prv_ipa.ipa_offload_susp)

		pmt_flags |= DWC_ETH_QOS_EMAC_INTR_WAKEUP;



	ret = DWC_ETH_QOS_powerdown(dev, pmt_flags, DWC_ETH_QOS_DRIVER_CONTEXT);



	DWC_ETH_QOS_suspend_clks(pdata);
@@ -1771,15 +1775,26 @@ static INT DWC_ETH_QOS_resume(struct platform_device *pdev) 
	if (of_device_is_compatible(pdev->dev.of_node, "qcom,emac-smmu-embedded"))

		return 0;



	if (!dev || !netif_running(dev)) {

		DBGPR("<--DWC_ETH_QOS_dev_resume\n");

		return -EINVAL;

	}



	if (pdata->ipa_enabled && pdata->prv_ipa.ipa_offload_conn) {

		if (pdata->power_down_type & DWC_ETH_QOS_EMAC_INTR_WAKEUP) {

			disable_irq_wake(pdata->irq_number);

			pdata->power_down_type &= ~DWC_ETH_QOS_EMAC_INTR_WAKEUP;

		return 0;

		}



	if (!dev || !netif_running(dev)) {

		DBGPR("<--DWC_ETH_QOS_dev_resume\n");

		return -EINVAL;

		if (pdata->power_down_type & DWC_ETH_QOS_PHY_INTR_WAKEUP) {

			disable_irq_wake(pdata->phy_irq);

			pdata->power_down_type &= ~DWC_ETH_QOS_PHY_INTR_WAKEUP;

		}



		/* Wakeup reason can be PHY link event or a RX packet */

		/* Set a wakeup event to ensure enough time for processing */

		pm_wakeup_event(&pdev->dev, 5000);

		return 0;

	}



	DWC_ETH_QOS_resume_clks(pdata);
@@ -1789,6 +1804,10 @@ static INT DWC_ETH_QOS_resume(struct platform_device *pdev) 
	if (pdata->ipa_enabled)

		DWC_ETH_QOS_ipa_offload_event_handler(pdata, EV_DPM_RESUME);



	/* Wakeup reason can be PHY link event or a RX packet */

	/* Set a wakeup event to ensure enough time for processing */

	pm_wakeup_event(&pdev->dev, 5000);



	DBGPR("<--DWC_ETH_QOS_resume\n");



	return ret;