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USB: EHCI: fix build error by making ChipIdea host a normal EHCI driver

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This patch (as1627) splits the ehci-hcd core code, which has become a
separate library module, out from the ChipIdea host driver.  Instead
of #include-ing ehci-hcd.c directly, the ChipIdea module will now use
the ehci-hcd library in a normal fashion.

This fixes a build error caused by commit
3e02320399 (USB: EHCI: prepare to make
ehci-hcd a library module); I had forgotten about the unorthodox way
the ChipIdea driver uses the ehci-hcd code.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alan Stern 2012-11-02 12:34:41 -04:00 • committed by Greg Kroah-Hartman
commit 09f6ffde2e
3 changed files with 9 additions and 54 deletions
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1
drivers/usb/chipidea/Kconfig
View file

@ -20,6 +20,7 @@ config USB_CHIPIDEA_UDC
config USB_CHIPIDEA_HOST
bool "ChipIdea host controller"
depends on USB=y || USB=USB_CHIPIDEA
depends on USB_EHCI_HCD
select USB_EHCI_ROOT_HUB_TT
help
Say Y here to enable host controller functionality of the

51
drivers/usb/chipidea/host.c
View file

@ -25,57 +25,18 @@
#include <linux/usb/chipidea.h>
#define CHIPIDEA_EHCI
#include "../host/ehci-hcd.c"
#include "../host/ehci.h"
#include "ci.h"
#include "bits.h"
#include "host.h"
static const struct hc_driver ci_ehci_hc_driver = {
.description = "ehci_hcd",
.product_desc = "ChipIdea HDRC EHCI",
.hcd_priv_size = sizeof(struct ehci_hcd),
/*
* generic hardware linkage
*/
.irq = ehci_irq,
.flags = HCD_MEMORY | HCD_USB2,
/*
* basic lifecycle operations
*/
.reset = ehci_setup,
.start = ehci_run,
.stop = ehci_stop,
.shutdown = ehci_shutdown,
/*
* managing i/o requests and associated device resources
*/
.urb_enqueue = ehci_urb_enqueue,
.urb_dequeue = ehci_urb_dequeue,
.endpoint_disable = ehci_endpoint_disable,
.endpoint_reset = ehci_endpoint_reset,
/*
* scheduling support
*/
.get_frame_number = ehci_get_frame,
/*
* root hub support
*/
.hub_status_data = ehci_hub_status_data,
.hub_control = ehci_hub_control,
.bus_suspend = ehci_bus_suspend,
.bus_resume = ehci_bus_resume,
.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 ci_overrides = {
.product_desc = "ChipIdea HDRC EHCI host controller",
};
static struct hc_driver __read_mostly ci_ehci_hc_driver;
static irqreturn_t host_irq(struct ci13xxx *ci)
{
return usb_hcd_irq(ci->irq, ci->hcd);
@ -141,5 +102,7 @@ int ci_hdrc_host_init(struct ci13xxx *ci)
rdrv->name = "host";
ci->roles[CI_ROLE_HOST] = rdrv;
ehci_init_driver(&ci_ehci_hc_driver, &ci_overrides);
return 0;
}

11
drivers/usb/host/ehci-hcd.c
View file

@ -1240,14 +1240,6 @@ EXPORT_SYMBOL_GPL(ehci_init_driver);
/*-------------------------------------------------------------------------*/
/*
* The EHCI in ChipIdea HDRC cannot be a separate module or device,
* because its registers (and irq) are shared between host/gadget/otg
* functions and in order to facilitate role switching we cannot
* give the ehci driver exclusive access to those.
*/
#ifndef CHIPIDEA_EHCI
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_AUTHOR (DRIVER_AUTHOR);
MODULE_LICENSE ("GPL");
@ -1359,6 +1351,7 @@ MODULE_LICENSE ("GPL");
#if !IS_ENABLED(CONFIG_USB_EHCI_PCI) && \
!IS_ENABLED(CONFIG_USB_EHCI_HCD_PLATFORM) && \
!defined(CONFIG_USB_CHIPIDEA_HOST) && \
!defined(PLATFORM_DRIVER) && \
!defined(PS3_SYSTEM_BUS_DRIVER) && \
!defined(OF_PLATFORM_DRIVER) && \
@ -1464,5 +1457,3 @@ static void __exit ehci_hcd_cleanup(void)
clear_bit(USB_EHCI_LOADED, &usb_hcds_loaded);
}
module_exit(ehci_hcd_cleanup);
#endif /* CHIPIDEA_EHCI */