From: Alexandre Bounine <alexandre.bounine@idt.com>
Date: Wed, 3 Jul 2013 22:08:55 +0000 (-0700)
Subject: rapidio/tsi721: convert to modular mport driver
X-Git-Tag: v4.0~3749^2~27
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=94d9bd4576fcd340c344bffbbe0526227535a95f;p=platform%2Fkernel%2Flinux-amlogic.git

rapidio/tsi721: convert to modular mport driver

This patch adds an option to build device driver for Tsi721 PCIe-to-SRIO
bridge device as a kernel module.

Currently this module cannot be unloaded because the existing RapidIO
subsystem code does not support dynamic removal of local RapidIO
controllers (TODO).

Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Li Yang <leoli@freescale.com>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Andre van Herk <andre.van.herk@Prodrive.nl>
Cc: Micha Nelissen <micha.nelissen@Prodrive.nl>
Cc: Stef van Os <stef.van.os@Prodrive.nl>
Cc: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/rapidio/devices/Kconfig b/drivers/rapidio/devices/Kconfig
index 12a9d7f..c4cb087 100644
--- a/drivers/rapidio/devices/Kconfig
+++ b/drivers/rapidio/devices/Kconfig
@@ -3,7 +3,7 @@
 #
 
 config RAPIDIO_TSI721
-	bool "IDT Tsi721 PCI Express SRIO Controller support"
+	tristate "IDT Tsi721 PCI Express SRIO Controller support"
 	depends on RAPIDIO && PCIEPORTBUS
 	default "n"
 	---help---
diff --git a/drivers/rapidio/devices/Makefile b/drivers/rapidio/devices/Makefile
index 7b62860..9432c49 100644
--- a/drivers/rapidio/devices/Makefile
+++ b/drivers/rapidio/devices/Makefile
@@ -2,7 +2,6 @@
 # Makefile for RapidIO devices
 #
 
-obj-$(CONFIG_RAPIDIO_TSI721)	+= tsi721.o
-ifeq ($(CONFIG_RAPIDIO_DMA_ENGINE),y)
-obj-$(CONFIG_RAPIDIO_TSI721)	+= tsi721_dma.o
-endif
+obj-$(CONFIG_RAPIDIO_TSI721)	+= tsi721_mport.o
+tsi721_mport-y			:= tsi721.o
+tsi721_mport-$(CONFIG_RAPIDIO_DMA_ENGINE) += tsi721_dma.o
diff --git a/drivers/rapidio/devices/tsi721.c b/drivers/rapidio/devices/tsi721.c
index a8b2c23..ff7cbf2 100644
--- a/drivers/rapidio/devices/tsi721.c
+++ b/drivers/rapidio/devices/tsi721.c
@@ -2515,9 +2515,8 @@ static int __init tsi721_init(void)
 	return pci_register_driver(&tsi721_driver);
 }
 
-static void __exit tsi721_exit(void)
-{
-	pci_unregister_driver(&tsi721_driver);
-}
-
 device_initcall(tsi721_init);
+
+MODULE_DESCRIPTION("IDT Tsi721 PCIExpress-to-SRIO bridge driver");
+MODULE_AUTHOR("Integrated Device Technology, Inc.");
+MODULE_LICENSE("GPL");
diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c
index 5eb727c..2054b62 100644
--- a/drivers/rapidio/rio.c
+++ b/drivers/rapidio/rio.c
@@ -1911,6 +1911,7 @@ int rio_register_mport(struct rio_mport *port)
 	pr_debug("RIO: %s %s id=%d\n", __func__, port->name, port->id);
 	return 0;
 }
+EXPORT_SYMBOL_GPL(rio_register_mport);
 
 EXPORT_SYMBOL_GPL(rio_local_get_device_id);
 EXPORT_SYMBOL_GPL(rio_get_device);