linux-kernel - [PATCH v8 01/15] PCI: cadence: Add module support for platform controller driver

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Message-ID: <20250819115239.4170604-2-hans.zhang@cixtech.com>
Date: Tue, 19 Aug 2025 19:52:25 +0800
From: hans.zhang@...tech.com
To: bhelgaas@...gle.com,
	lpieralisi@...nel.org,
	kw@...ux.com,
	mani@...nel.org,
	robh@...nel.org,
	kwilczynski@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org
Cc: mpillai@...ence.com,
	fugang.duan@...tech.com,
	guoyin.chen@...tech.com,
	peter.chen@...tech.com,
	cix-kernel-upstream@...tech.com,
	linux-pci@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Hans Zhang <hans.zhang@...tech.com>
Subject: [PATCH v8 01/15] PCI: cadence: Add module support for platform controller driver

From: Manikandan K Pillai <mpillai@...ence.com>

Add support for building PCI cadence platforms as a module.

Signed-off-by: Manikandan K Pillai <mpillai@...ence.com>
Co-developed-by: Hans Zhang <hans.zhang@...tech.com>
Signed-off-by: Hans Zhang <hans.zhang@...tech.com>
---
 drivers/pci/controller/cadence/Kconfig             | 6 +++---
 drivers/pci/controller/cadence/pcie-cadence-plat.c | 5 ++++-
 drivers/pci/controller/cadence/pcie-cadence.c      | 1 +
 3 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/pci/controller/cadence/Kconfig b/drivers/pci/controller/cadence/Kconfig
index 666e16b6367f..117677a23d68 100644
--- a/drivers/pci/controller/cadence/Kconfig
+++ b/drivers/pci/controller/cadence/Kconfig
@@ -19,10 +19,10 @@ config PCIE_CADENCE_EP
 	select PCIE_CADENCE
 
 config PCIE_CADENCE_PLAT
-	bool
+	tristate
 
 config PCIE_CADENCE_PLAT_HOST
-	bool "Cadence platform PCIe controller (host mode)"
+	tristate "Cadence platform PCIe controller (host mode)"
 	depends on OF
 	select PCIE_CADENCE_HOST
 	select PCIE_CADENCE_PLAT
@@ -32,7 +32,7 @@ config PCIE_CADENCE_PLAT_HOST
 	  vendors SoCs.
 
 config PCIE_CADENCE_PLAT_EP
-	bool "Cadence platform PCIe controller (endpoint mode)"
+	tristate "Cadence platform PCIe controller (endpoint mode)"
 	depends on OF
 	depends on PCI_ENDPOINT
 	select PCIE_CADENCE_EP
diff --git a/drivers/pci/controller/cadence/pcie-cadence-plat.c b/drivers/pci/controller/cadence/pcie-cadence-plat.c
index 0456845dabb9..ebd5c3afdfcd 100644
--- a/drivers/pci/controller/cadence/pcie-cadence-plat.c
+++ b/drivers/pci/controller/cadence/pcie-cadence-plat.c
@@ -177,4 +177,7 @@ static struct platform_driver cdns_plat_pcie_driver = {
 	.probe = cdns_plat_pcie_probe,
 	.shutdown = cdns_plat_pcie_shutdown,
 };
-builtin_platform_driver(cdns_plat_pcie_driver);
+module_platform_driver(cdns_plat_pcie_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Cadence PCIe controller platform driver");
diff --git a/drivers/pci/controller/cadence/pcie-cadence.c b/drivers/pci/controller/cadence/pcie-cadence.c
index 70a19573440e..5603f214f4c7 100644
--- a/drivers/pci/controller/cadence/pcie-cadence.c
+++ b/drivers/pci/controller/cadence/pcie-cadence.c
@@ -279,6 +279,7 @@ const struct dev_pm_ops cdns_pcie_pm_ops = {
 	NOIRQ_SYSTEM_SLEEP_PM_OPS(cdns_pcie_suspend_noirq,
 				  cdns_pcie_resume_noirq)
 };
+EXPORT_SYMBOL_GPL(cdns_pcie_pm_ops);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Cadence PCIe controller driver");
-- 
2.49.0