linux-kernel - [PATCH] PCI: tegra: Fix host initialization during resume

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Date:   Tue, 4 May 2021 22:51:57 +0530
From:   Vidya Sagar <vidyas@...dia.com>
To:     <lorenzo.pieralisi@....com>, <robh@...nel.org>,
        <bhelgaas@...gle.com>, <thierry.reding@...il.com>,
        <jonathanh@...dia.com>, <jingoohan1@...il.com>,
        <gustavo.pimentel@...opsys.com>
CC:     <linux-pci@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <kthota@...dia.com>,
        <mmaddireddy@...dia.com>, <vidyas@...dia.com>, <sagar.tv@...il.com>
Subject: [PATCH] PCI: tegra: Fix host initialization during resume

Commit 275e88b06a27 ("PCI: tegra: Fix host link initialization") broke
host initialization during resume as it misses out calling the API
dw_pcie_setup_rc() which is required for host and MSI initialization.

Fixes: 275e88b06a27 ("PCI: tegra: Fix host link initialization")
Signed-off-by: Vidya Sagar <vidyas@...dia.com>
---
 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 6fa216e52d14..4c3c0738f2e6 100644
--- a/drivers/pci/controller/dwc/pcie-tegra194.c
+++ b/drivers/pci/controller/dwc/pcie-tegra194.c
@@ -2214,6 +2214,8 @@ static int tegra_pcie_dw_resume_noirq(struct device *dev)
 		goto fail_host_init;
 	}
 
+	dw_pcie_setup_rc(&pcie->pci.pp);
+
 	ret = tegra_pcie_dw_start_link(&pcie->pci);
 	if (ret < 0)
 		goto fail_host_init;
-- 
2.17.1