diff options
| author | Anton Tikhomirov <av.tikhomirov@samsung.com> | 2012-03-06 14:08:29 +0900 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2012-04-10 19:11:45 +0300 |
| commit | 70fa030ffb652ace81dd5bcab01255b49723caec (patch) | |
| tree | 5ed20b7480f31519e2bdd74943c0706aa3c43e36 /drivers/usb/gadget | |
| parent | 659ad60cb9128345d0a6b9093dda9b0e366b7937 (diff) | |
| download | blackbird-op-linux-70fa030ffb652ace81dd5bcab01255b49723caec.tar.gz blackbird-op-linux-70fa030ffb652ace81dd5bcab01255b49723caec.zip | |
usb: s3c-hsotg: Avoid TxFIFO corruption in DMA mode
Writing to TxFIFO relates only to Slave mode and leads to
TxFIFO corruption in DMA mode.
Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/gadget')
| -rw-r--r-- | drivers/usb/gadget/s3c-hsotg.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index 03de169ab365..8db23660b5e2 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -1921,7 +1921,8 @@ static void s3c_hsotg_epint(struct s3c_hsotg *hsotg, unsigned int idx, ints & S3C_DIEPMSK_TxFIFOEmpty) { dev_dbg(hsotg->dev, "%s: ep%d: TxFIFOEmpty\n", __func__, idx); - s3c_hsotg_trytx(hsotg, hs_ep); + if (!using_dma(hsotg)) + s3c_hsotg_trytx(hsotg, hs_ep); } } } |
