linux/drivers/usb/core
Anand Gadiyar 07a8cdd2bb usb: musb: do not use dma for control transfers
The Inventra DMA engine used with the MUSB controller in many
SoCs cannot use DMA for control transfers on EP0, but can use
DMA for all other transfers.

The USB core maps urbs for DMA if hcd->self.uses_dma is true.
(hcd->self.uses_dma is true for MUSB as well).

Split the uses_dma flag into two - one that says if the
controller needs to use PIO for control transfers, and
another which says if the controller uses DMA (for all
other transfers).

Also, populate this flag for all MUSB by default.

(Tested on OMAP3 and OMAP4 boards, with EHCI and MUSB HCDs
simultaneously in use).

Signed-off-by: Maulik Mankad <x0082077@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Cc: Oliver Neukum <oliver@neukum.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Praveena NADAHALLY <praveen.nadahally@stericsson.com>
Cc: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2010-11-22 12:55:02 +02:00
..
buffer.c USB: make hcd.h public (drivers dependency) 2010-05-20 13:21:30 -07:00
config.c USB: remove the usb_host_ss_ep_comp structure 2010-05-20 13:21:40 -07:00
devices.c BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
devio.c BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
driver.c USB: do not print -ESHUTDOWN message if usb at otg device mode 2010-10-22 10:22:05 -07:00
endpoint.c usb: core: endpoint: Fix error path 2010-10-22 10:22:06 -07:00
file.c BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
generic.c USB: accept RNDIS configs if there's no alternative 2010-08-10 14:35:43 -07:00
hcd-pci.c OHCI: work around for nVidia shutdown problem 2010-10-22 10:21:36 -07:00
hcd.c usb: musb: do not use dma for control transfers 2010-11-22 12:55:02 +02:00
hub.c USB: accept some invalid ep0-maxpacket values 2010-10-22 10:22:14 -07:00
inode.c BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
Kconfig USB: update Kconfig help text for CONFIG_USB_SUSPEND 2010-09-24 11:05:01 -07:00
Makefile usb: makefile cleanup 2010-10-22 10:22:07 -07:00
message.c USB: disable endpoints after unbinding interfaces, not before 2010-10-22 10:22:01 -07:00
notify.c
otg_whitelist.h
quirks.c USB delay init quirk for logitech Harmony 700-series devices 2010-08-10 14:35:41 -07:00
sysfs.c sysfs: add struct file* to bin_attr callbacks 2010-05-21 09:37:31 -07:00
urb.c USB: output an error message when the pipe type doesn't match the endpoint type 2010-10-22 10:21:27 -07:00
usb.c USB: remove fake "address-of" expressions 2010-08-10 14:35:45 -07:00
usb.h USB: convert to the runtime PM framework 2010-03-02 14:54:12 -08:00