usb: chipidea: add host role
This adds EHCI host support to the chipidea driver. We want it to be
part of the hdrc driver and not a standalone (sub-)driver module, as
the structure of ehci-hcd.c suggests, so for chipidea controller we
hack it to not provide platform-related code, but only the ehci hcd.
The ehci-platform driver won't work for us here too, because the
controller uses the same registers for both device and host mode and
also otg-related bits, so it's not really possible to put ehci registers
into a separate resource.
This is not a pretty solution, but the alternative is exporting symbols
from the chipidea driver to a ehci-chipidea driver and doing all the
module refcounting.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index 290946d..fb0a911 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -1,5 +1,5 @@
/*
- * udc.h - ChipIdea UDC driver
+ * udc.c - ChipIdea UDC driver
*
* Copyright (C) 2008 Chipidea - MIPS Technologies, Inc. All rights reserved.
*
@@ -1396,7 +1396,7 @@
if (gadget_ready) {
if (is_active) {
pm_runtime_get_sync(&_gadget->dev);
- hw_device_reset(udc);
+ hw_device_reset(udc, USBMODE_CM_DC);
hw_device_state(udc, udc->ep0out->qh.dma);
} else {
hw_device_state(udc, 0);
@@ -1540,7 +1540,7 @@
if (udc->udc_driver->flags & CI13XXX_PULLUP_ON_VBUS) {
if (udc->vbus_active) {
if (udc->udc_driver->flags & CI13XXX_REGS_SHARED)
- hw_device_reset(udc);
+ hw_device_reset(udc, USBMODE_CM_DC);
} else {
pm_runtime_put_sync(&udc->gadget.dev);
goto done;
@@ -1720,7 +1720,7 @@
}
if (!(udc->udc_driver->flags & CI13XXX_REGS_SHARED)) {
- retval = hw_device_reset(udc);
+ retval = hw_device_reset(udc, USBMODE_CM_DC);
if (retval)
goto put_transceiver;
}