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authorMian Yousaf Kaukab <yousaf.kaukab@intel.com>2015-01-09 13:38:42 +0100
committerFelipe Balbi <balbi@ti.com>2015-01-12 15:32:33 -0600
commit6ff2e8326fb50aee80f93e12de367065cc089aae (patch)
tree38fbe47b5dfe0f50a1d64d307ea220cd6f9ef673 /drivers/usb/dwc2
parentf6c015922c1dc99c53fb2ca95361086e65897b7c (diff)
usb: dwc2: gadget: mask fifo empty irq with dma
When using DMA, keep fifo empty interrupt disabled. Otherwise core is flooded by interrupts. Tested-by: Robert Baldyga <r.baldyga@samsung.com> Acked-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Gregory Herrero <gregory.herrero@intel.com> Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc2')
-rw-r--r--drivers/usb/dwc2/gadget.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index b5332f01be85..843f3ee0fbbd 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -2170,8 +2170,8 @@ void s3c_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg)
* interrupts.
*/
- writel(((hsotg->dedicated_fifos) ? DIEPMSK_TXFIFOEMPTY |
- DIEPMSK_INTKNTXFEMPMSK : 0) |
+ writel(((hsotg->dedicated_fifos && !using_dma(hsotg)) ?
+ DIEPMSK_TXFIFOEMPTY | DIEPMSK_INTKNTXFEMPMSK : 0) |
DIEPMSK_EPDISBLDMSK | DIEPMSK_XFERCOMPLMSK |
DIEPMSK_TIMEOUTMSK | DIEPMSK_AHBERRMSK |
DIEPMSK_INTKNEPMISMSK,