PCI: altera-msi: Allow building as module (c7ddfd35) · Commits · 戴 / test

Altera MSI IP is a soft IP and is only available after an FPGA image (with design containing it) is programmed. Make driver modulable to support use case FPGA image is programmed the after kernel has booted, so that the driver can be loaded upon request. Signed-off-by:

Ley Foon Tan <ley.foon.tan@intel.com> Signed-off-by:

Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>

drivers/pci/controller/Kconfig

+1 −1

Original line number	Diff line number	Diff line
		@@ -181,7 +181,7 @@ config PCIE_ALTERA
		FPGA.

		config PCIE_ALTERA_MSI
		bool "Altera PCIe MSI feature"
		tristate "Altera PCIe MSI feature"
		depends on PCIE_ALTERA
		depends on PCI_MSI_IRQ_DOMAIN
		help

drivers/pci/controller/pcie-altera-msi.c

+10 −0

Original line number	Diff line number	Diff line
		@@ -10,6 +10,7 @@
		#include <linux/interrupt.h>
		#include <linux/irqchip/chained_irq.h>
		#include <linux/init.h>
		#include <linux/module.h>
		#include <linux/msi.h>
		#include <linux/of_address.h>
		#include <linux/of_irq.h>
		@@ -288,4 +289,13 @@ static int __init altera_msi_init(void)
		{
		return platform_driver_register(&altera_msi_driver);
		}

		static void __exit altera_msi_exit(void)
		{
		platform_driver_unregister(&altera_msi_driver);
		}

		subsys_initcall(altera_msi_init);
		MODULE_DEVICE_TABLE(of, altera_msi_of_match);
		module_exit(altera_msi_exit);
		MODULE_LICENSE("GPL v2");

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