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| author | Takashi Iwai <tiwai@suse.de> | 2010-10-11 13:45:22 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2010-10-11 13:45:22 +0200 |
| commit | 4e83998f5af010a928495988c586ea2926624db9 (patch) | |
| tree | e72d346172a30bbee165d7f585784724906da416 /drivers/usb/musb/musb_host.c | |
| parent | dd1d3a49db4ae5c6afffadaff526b96c7993c7dd (diff) | |
| parent | d4cfa4d12f46e2520f4c1d1a92e891ce068b7464 (diff) | |
| download | talos-op-linux-4e83998f5af010a928495988c586ea2926624db9.tar.gz talos-op-linux-4e83998f5af010a928495988c586ea2926624db9.zip | |
Merge branch 'fix/misc' into topic/misc
Diffstat (limited to 'drivers/usb/musb/musb_host.c')
| -rw-r--r-- | drivers/usb/musb/musb_host.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 877d20b1dff9..9e65c47cc98b 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -660,6 +660,12 @@ static bool musb_tx_dma_program(struct dma_controller *dma, qh->segsize = length; + /* + * Ensure the data reaches to main memory before starting + * DMA transfer + */ + wmb(); + if (!dma->channel_program(channel, pkt_size, mode, urb->transfer_dma + offset, length)) { dma->channel_release(channel); |
