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| author | Anand Gadiyar <gadiyar@ti.com> | 2009-04-02 21:07:08 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-06-16 06:44:41 +0200 |
| commit | d1043a2697effee3054451a9293a376bfb013e4b (patch) | |
| tree | 4a614ab79c9c44b23a45b9f0bb3e0f8352a4d99d /drivers/usb/musb/musb_host.h | |
| parent | musb: support disconnect after HNP roleswitch (diff) | |
| download | linux-d1043a2697effee3054451a9293a376bfb013e4b.tar.xz linux-d1043a2697effee3054451a9293a376bfb013e4b.zip | |
musb: use dma mode 1 for TX if transfer size equals maxpacket (v2)
Currently, with Inventra DMA, we use Mode 0 if transfer size is less
than or equal to the endpoint's maxpacket size. This requires that
we explicitly set TXPKTRDY for that transfer.
However the musb_g_tx code will not set TXPKTRDY twice if the last
transfer is exactly equal to maxpacket, even if request->zero is set.
Using Mode 1 will solve this; a better fix might be in musb_g_tx().
Without this change, musb will not correctly send out a ZLP if the
last transfer is the maxpacket size and request->zero is set.
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/musb/musb_host.h')
0 files changed, 0 insertions, 0 deletions