diff options
| author | Alexander Shishkin <alexander.shishkin@linux.intel.com> | 2012-05-11 18:25:54 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-05-12 03:56:15 +0400 |
| commit | eb70e5ab8f95a81283623c03d2c99dfc59fcb319 (patch) | |
| tree | fc20c9d10484171490cf6b69f7f5b6f934803366 /drivers/usb/chipidea/udc.c | |
| parent | 758fc9860c19eceb56e5886a5225db623c521971 (diff) | |
| download | linux-eb70e5ab8f95a81283623c03d2c99dfc59fcb319.tar.xz | |
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>
Diffstat (limited to 'drivers/usb/chipidea/udc.c')
| -rw-r--r-- | drivers/usb/chipidea/udc.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 290946d618d8..fb0a91158006 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 @@ static int ci13xxx_vbus_session(struct usb_gadget *_gadget, int is_active) 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 @@ static int ci13xxx_start(struct usb_gadget *gadget, 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 @@ static int udc_start(struct ci13xxx *udc) } 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; } |