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| author |   Greg Kroah-Hartman <gregkh@suse.de> | 2011-06-14 14:17:59 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-06-14 14:18:05 -0700 |
| commit | 869e9e567fe6bba859e1d761250d160a9216498a (patch) | |
| tree | f5457728cf9e02edc150fdf032c7cb4387ef25e3 /drivers | |
| parent | Linux 3.0-rc3 (diff) | |
| parent | usb: musb: gadget: clear TXPKTRDY flag when set FLUSHFIFO (diff) | |
| download | linux-dev-869e9e567fe6bba859e1d761250d160a9216498a.tar.xz linux-dev-869e9e567fe6bba859e1d761250d160a9216498a.zip | |
Merge branch 'for-greg' of master.kernel.org:/pub/scm/linux/kernel/git/balbi/usb into usb-linus
* 'for-greg' of master.kernel.org:/pub/scm/linux/kernel/git/balbi/usb:
usb: musb: gadget: clear TXPKTRDY flag when set FLUSHFIFO
usb: musb: host: compare status for negative error values
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/musb/musb_gadget.c | 6 | ||||
| -rw-r--r-- | drivers/usb/musb/musb_host.c | 2 |
2 files changed, 7 insertions, 1 deletions
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index 0a50a35e1853..6aeb363e63e7 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -1524,6 +1524,12 @@ static void musb_gadget_fifo_flush(struct usb_ep *ep) csr = musb_readw(epio, MUSB_TXCSR); if (csr & MUSB_TXCSR_FIFONOTEMPTY) { csr |= MUSB_TXCSR_FLUSHFIFO | MUSB_TXCSR_P_WZC_BITS; + /* + * Setting both TXPKTRDY and FLUSHFIFO makes controller + * to interrupt current FIFO loading, but not flushing + * the already loaded ones. + */ + csr &= ~MUSB_TXCSR_TXPKTRDY; musb_writew(epio, MUSB_TXCSR, csr); /* REVISIT may be inappropriate w/o FIFONOTEMPTY ... */ musb_writew(epio, MUSB_TXCSR, csr); diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 7295e316bdfc..8b2473fa0f47 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -1575,7 +1575,7 @@ void musb_host_rx(struct musb *musb, u8 epnum) /* even if there was an error, we did the dma * for iso_frame_desc->length */ - if (d->status != EILSEQ && d->status != -EOVERFLOW) + if (d->status != -EILSEQ && d->status != -EOVERFLOW) d->status = 0; if (++qh->iso_idx >= urb->number_of_packets) |