From 99f91934a907df31ba878dfdd090002049dc476a Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Thu, 1 Nov 2012 11:13:08 -0400
Subject: [PATCH] USB: EHCI: make ehci-platform a separate driver
This patch (as1626) splits the ehci-platform code from ehci-hcd out
into its own separate driver module.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/host/Kconfig | 2 +-
drivers/usb/host/Makefile | 1 +
drivers/usb/host/ehci-hcd.c | 6 +--
drivers/usb/host/ehci-platform.c | 66 ++++++++++++++++++--------------
4 files changed, 40 insertions(+), 35 deletions(-)
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 10130f47fc78..d6bb128ce21e 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -430,7 +430,7 @@ config USB_OHCI_HCD_PLATFORM
If unsure, say N.
config USB_EHCI_HCD_PLATFORM
- bool "Generic EHCI driver for a platform device"
+ tristate "Generic EHCI driver for a platform device"
depends on USB_EHCI_HCD
default n
---help---
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index a8390b091c4d..1eb4c3006e9e 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -25,6 +25,7 @@ obj-$(CONFIG_PCI) += pci-quirks.o
obj-$(CONFIG_USB_EHCI_HCD) += ehci-hcd.o
obj-$(CONFIG_USB_EHCI_PCI) += ehci-pci.o
+obj-$(CONFIG_USB_EHCI_HCD_PLATFORM) += ehci-platform.o
obj-$(CONFIG_USB_OXU210HP_HCD) += oxu210hp-hcd.o
obj-$(CONFIG_USB_ISP116X_HCD) += isp116x-hcd.o
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 7113d6ad24f7..4a466d7730c5 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1357,12 +1357,8 @@ MODULE_LICENSE ("GPL");
#define PLATFORM_DRIVER ehci_hcd_sead3_driver
#endif
-#ifdef CONFIG_USB_EHCI_HCD_PLATFORM
-#include "ehci-platform.c"
-#define PLATFORM_DRIVER ehci_platform_driver
-#endif
-
#if !IS_ENABLED(CONFIG_USB_EHCI_PCI) && \
+ !IS_ENABLED(CONFIG_USB_EHCI_HCD_PLATFORM) && \
!defined(PLATFORM_DRIVER) && \
!defined(PS3_SYSTEM_BUS_DRIVER) && \
!defined(OF_PLATFORM_DRIVER) && \
diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
index 6e6c23bdb484..f97fe3a4d81c 100644
--- a/drivers/usb/host/ehci-platform.c
+++ b/drivers/usb/host/ehci-platform.c
@@ -18,9 +18,19 @@
*
* Licensed under the GNU/GPL. See COPYING for details.
*/
+#include <linux/kernel.h>
+#include <linux/module.h>
#include <linux/platform_device.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
#include <linux/usb/ehci_pdriver.h>
+#include "ehci.h"
+
+#define DRIVER_DESC "EHCI generic platform driver"
+
+static const char hcd_name[] = "ehci-platform";
+
static int ehci_platform_reset(struct usb_hcd *hcd)
{
struct platform_device *pdev = to_platform_device(hcd->self.controller);
@@ -43,36 +53,11 @@ static int ehci_platform_reset(struct usb_hcd *hcd)
return 0;
}
-static const struct hc_driver ehci_platform_hc_driver = {
- .description = hcd_name,
- .product_desc = "Generic Platform EHCI Controller",
- .hcd_priv_size = sizeof(struct ehci_hcd),
+static struct hc_driver __read_mostly ehci_platform_hc_driver;
- .irq = ehci_irq,
- .flags = HCD_MEMORY | HCD_USB2,
-
- .reset = ehci_platform_reset,
- .start = ehci_run,
- .stop = ehci_stop,
- .shutdown = ehci_shutdown,
-
- .urb_enqueue = ehci_urb_enqueue,
- .urb_dequeue = ehci_urb_dequeue,
- .endpoint_disable = ehci_endpoint_disable,
- .endpoint_reset = ehci_endpoint_reset,
-
- .get_frame_number = ehci_get_frame,
-
- .hub_status_data = ehci_hub_status_data,
- .hub_control = ehci_hub_control,
-#if defined(CONFIG_PM)
- .bus_suspend = ehci_bus_suspend,
- .bus_resume = ehci_bus_resume,
-#endif
- .relinquish_port = ehci_relinquish_port,
- .port_handed_over = ehci_port_handed_over,
-
- .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
+static const struct ehci_driver_overrides platform_overrides = {
+ .product_desc = "Generic Platform EHCI controller",
+ .reset = ehci_platform_reset,
};
static int __devinit ehci_platform_probe(struct platform_device *dev)
@@ -218,3 +203,26 @@ static struct platform_driver ehci_platform_driver = {
.pm = &ehci_platform_pm_ops,
}
};
+
+static int __init ehci_platform_init(void)
+{
+ if (usb_disabled())
+ return -ENODEV;
+
+ pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+
+ ehci_init_driver(&ehci_platform_hc_driver, &platform_overrides);
+ return platform_driver_register(&ehci_platform_driver);
+}
+module_init(ehci_platform_init);
+
+static void __exit ehci_platform_cleanup(void)
+{
+ platform_driver_unregister(&ehci_platform_driver);
+}
+module_exit(ehci_platform_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_AUTHOR("Hauke Mehrtens");
+MODULE_AUTHOR("Alan Stern");
+MODULE_LICENSE("GPL");