linux-kernel - [PATCH v1 4/4] PCI: brcmstb: add shutdown call to driver

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Message-Id: <20210427175140.17800-5-jim2101024@gmail.com>
Date:   Tue, 27 Apr 2021 13:51:39 -0400
From:   Jim Quinlan <jim2101024@...il.com>
To:     linux-pci@...r.kernel.org, Bjorn Helgaas <bhelgaas@...gle.com>,
        Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
        bcm-kernel-feedback-list@...adcom.com, james.quinlan@...adcom.com
Cc:     Jim Quinlan <jim2101024@...il.com>,
        Nicolas Saenz Julienne <nsaenz@...nel.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Rob Herring <robh@...nel.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        linux-rpi-kernel@...ts.infradead.org (moderated list:BROADCOM
        BCM2711/BCM2835 ARM ARCHITECTURE),
        linux-arm-kernel@...ts.infradead.org (moderated list:BROADCOM
        BCM2711/BCM2835 ARM ARCHITECTURE),
        linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v1 4/4] PCI: brcmstb: add shutdown call to driver

The shutdown() call is similar to the remove() call except the former does
not need to invoke pci_{stop,remove}_root_bus(), and besides, errors occur
if it does.

Signed-off-by: Jim Quinlan <jim2101024@...il.com>
---
 drivers/pci/controller/pcie-brcmstb.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c
index d3af8d84f0d6..a1fe1a2ada48 100644
--- a/drivers/pci/controller/pcie-brcmstb.c
+++ b/drivers/pci/controller/pcie-brcmstb.c
@@ -1340,6 +1340,15 @@ static int brcm_pcie_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static void brcm_pcie_shutdown(struct platform_device *pdev)
+{
+	struct brcm_pcie *pcie = platform_get_drvdata(pdev);
+
+	if (pcie->has_err_report)
+		brcm_unregister_die_notifiers(pcie);
+	__brcm_pcie_remove(pcie);
+}
+
 static const struct of_device_id brcm_pcie_match[] = {
 	{ .compatible = "brcm,bcm2711-pcie", .data = &bcm2711_cfg },
 	{ .compatible = "brcm,bcm4908-pcie", .data = &bcm4908_cfg },
@@ -1460,6 +1469,7 @@ static const struct dev_pm_ops brcm_pcie_pm_ops = {
 static struct platform_driver brcm_pcie_driver = {
 	.probe = brcm_pcie_probe,
 	.remove = brcm_pcie_remove,
+	.shutdown = brcm_pcie_shutdown,
 	.driver = {
 		.name = "brcm-pcie",
 		.of_match_table = brcm_pcie_match,
-- 
2.17.1