linux/drivers/usb/musb
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
..
am35x.c USB: musb: AM35x: Workaround for fifo read issue 2010-10-22 10:22:17 -07:00
blackfin.c USB: musb: blackfin: push clkin value to platform resources 2010-11-05 14:13:32 +02:00
blackfin.h USB: musb: workaround Blackfin FIFO anomalies 2009-12-23 11:34:19 -08:00
cppi_dma.c USB: musb: suppress warning about unused flags 2010-10-22 10:21:55 -07:00
cppi_dma.h headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
da8xx.c usb: musb: introduce DA8xx/OMAP-L1x glue layer 2010-10-22 10:21:52 -07:00
davinci.c USB: MUSB: fix kernel WARNING/oops when unloading module in OTG mode 2010-10-22 10:21:58 -07:00
davinci.h USB: musb: partial DaVinci dm355 support 2009-03-24 16:20:36 -07:00
Kconfig USB: musb: add musb support for AM35x 2010-10-22 10:22:16 -07:00
Makefile USB: musb: add musb support for AM35x 2010-10-22 10:22:16 -07:00
musb_core.c usb: musb: do not use dma for control transfers 2010-11-22 12:55:02 +02:00
musb_core.h USB: musb: blackfin: pm: make it work 2010-11-05 14:10:57 +02:00
musb_debug.h USB: musb: make DBG() calls actually depend on CONFIG_USB_MUSB_DEBUG 2010-10-22 10:21:52 -07:00
musb_debugfs.c usb: musb_debugfs: don't use the struct file private_data field with seq_files 2010-09-20 16:04:56 -07:00
musb_dma.h USB: musb: add work around for Blackfin anomaly 05000456 2009-12-11 11:55:24 -08:00
musb_gadget_ep0.c usb: musb: gadget: restart request on clearing endpoint halt 2010-09-24 11:05:01 -07:00
musb_gadget.c usb: musb: do not use dma for control transfers 2010-11-22 12:55:02 +02:00
musb_gadget.h usb: musb: support ISO high bandwidth for gadget mode 2010-10-22 10:21:53 -07:00
musb_host.c usb: musb: host: support DMA transfers greater than max channel length 2010-10-22 10:21:54 -07:00
musb_host.h musb: add high bandwidth ISO support 2009-06-15 21:44:41 -07:00
musb_io.h USB: musb: Blackfin provides read/write I/O accessor in header files 2009-01-07 10:00:08 -08:00
musb_regs.h USB: musb: blackfin: fix musb_read_txhubport() definition 2010-11-05 13:59:32 +02:00
musb_virthub.c USB: convert usb_hcd bitfields into atomic flags 2010-08-10 14:35:37 -07:00
musbhsdma.c usb: musb: fail unaligned DMA transfers on v1.8 and above 2010-11-09 10:24:35 +02:00
musbhsdma.h usb: musb: hsdma: use musb_read/writel 2010-05-20 13:21:32 -07:00
omap2430.c USB: MUSB: fix kernel WARNING/oops when unloading module in OTG mode 2010-10-22 10:21:58 -07:00
omap2430.h USB: musb: get rid of omap_readl/writel 2010-03-02 14:54:38 -08:00
tusb6010_omap.c usb: Fix tusb6010 for DMA API 2010-04-30 09:25:09 -07:00
tusb6010.c USB: MUSB: fix kernel WARNING/oops when unloading module in OTG mode 2010-10-22 10:21:58 -07:00
tusb6010.h USB: musb: Remove my email address from few musb related drivers 2009-04-23 14:15:27 -07:00