Commit bb617cbd authored by Vidya Sagar's avatar Vidya Sagar Committed by Bjorn Helgaas
Browse files

PCI: tegra194: Clean up the exit path for Endpoint mode 

Clean up the exit path during .remove() and .shutdown() calls when in
Endpoint mode.

Link: https://lore.kernel.org/r/20220721142052.25971-14-vidyas@nvidia.com


Signed-off-by: default avatarVidya Sagar <vidyas@nvidia.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
parent 4fb8e46c

drivers/pci/controller/dwc/pcie-tegra194.c

+31 −14
Original line number Diff line number Diff line
@@ -2145,12 +2145,18 @@ static int tegra_pcie_dw_remove(struct platform_device *pdev) 
{

	struct tegra_pcie_dw *pcie = platform_get_drvdata(pdev);



	if (pcie->mode == DW_PCIE_RC_TYPE) {

		if (!pcie->link_state)

			return 0;



		debugfs_remove_recursive(pcie->debugfs);

		tegra_pcie_deinit_controller(pcie);

		pm_runtime_put_sync(pcie->dev);

	} else {

		disable_irq(pcie->pex_rst_irq);

		pex_ep_event_pex_rst_assert(pcie);

	}



	pm_runtime_disable(pcie->dev);

	tegra_bpmp_put(pcie->bpmp);

	if (pcie->pex_refclk_sel_gpiod)
@@ -2164,6 +2170,11 @@ static int tegra_pcie_dw_suspend_late(struct device *dev) 
	struct tegra_pcie_dw *pcie = dev_get_drvdata(dev);

	u32 val;



	if (pcie->mode == DW_PCIE_EP_TYPE) {

		dev_err(dev, "Failed to Suspend as Tegra PCIe is in EP mode\n");

		return -EPERM;

	}



	if (!pcie->link_state)

		return 0;
@@ -2251,6 +2262,7 @@ static void tegra_pcie_dw_shutdown(struct platform_device *pdev) 
{

	struct tegra_pcie_dw *pcie = platform_get_drvdata(pdev);



	if (pcie->mode == DW_PCIE_RC_TYPE) {

		if (!pcie->link_state)

			return;
@@ -2263,6 +2275,11 @@ static void tegra_pcie_dw_shutdown(struct platform_device *pdev) 


		tegra_pcie_dw_pme_turnoff(pcie);

		tegra_pcie_unconfig_controller(pcie);

		pm_runtime_put_sync(pcie->dev);

	} else {

		disable_irq(pcie->pex_rst_irq);

		pex_ep_event_pex_rst_assert(pcie);

	}

}



static const struct tegra_pcie_dw_of_data tegra_pcie_dw_rc_of_data = {