linux-kernel - [PATCH V3 19/21] PCI: tegra194: Free up EP resources during remove()

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Message-ID: <20221013183854.21087-20-vidyas@nvidia.com>
Date:   Fri, 14 Oct 2022 00:08:52 +0530
From:   Vidya Sagar <vidyas@...dia.com>
To:     <lpieralisi@...nel.org>, <robh@...nel.org>, <kw@...ux.com>,
        <bhelgaas@...gle.com>, <thierry.reding@...il.com>,
        <jonathanh@...dia.com>, <kishon@...com>, <vkoul@...nel.org>,
        <mani@...nel.org>, <Sergey.Semin@...kalelectronics.ru>,
        <ffclaire1224@...il.com>
CC:     <linux-pci@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-phy@...ts.infradead.org>,
        <kthota@...dia.com>, <mmaddireddy@...dia.com>, <vidyas@...dia.com>,
        <sagar.tv@...il.com>
Subject: [PATCH V3 19/21] PCI: tegra194: Free up EP resources during remove()

Free up the resources during remove() that were acquired by the DesignWare
driver for the endpoint mode during proble().

Signed-off-by: Vidya Sagar <vidyas@...dia.com>
---
V3:
* This is a new patch in this series

 drivers/pci/controller/dwc/pcie-tegra194.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c
index 3baf1a26fe68..c88c36d85ee5 100644
--- a/drivers/pci/controller/dwc/pcie-tegra194.c
+++ b/drivers/pci/controller/dwc/pcie-tegra194.c
@@ -2383,6 +2383,7 @@ static int tegra_pcie_dw_probe(struct platform_device *pdev)
 static int tegra_pcie_dw_remove(struct platform_device *pdev)
 {
 	struct tegra_pcie_dw *pcie = platform_get_drvdata(pdev);
+	struct dw_pcie_ep *ep = &pcie->pci.ep;
 
 	if (pcie->of_data->mode == DW_PCIE_RC_TYPE) {
 		if (!pcie->link_state && !pcie->slot_pluggable)
@@ -2396,6 +2397,7 @@ static int tegra_pcie_dw_remove(struct platform_device *pdev)
 	} else {
 		disable_irq(pcie->pex_rst_irq);
 		pex_ep_event_pex_rst_assert(pcie);
+		dw_pcie_ep_exit(ep);
 	}
 
 	pm_runtime_disable(pcie->dev);
-- 
2.17.1