diff options
| author | Gregory Herrero <gregory.herrero@intel.com> | 2015-01-09 12:38:47 (GMT) |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2015-01-12 21:32:59 (GMT) |
| commit | f5090044763fd954a002a6ef466fcbc21033518f (patch) | |
| tree | 26c905162d2e0121049596264f52a1d2d19c68e5 /drivers/usb | |
| parent | 5f05048e5473a0570b1db9c2828d2a469e8bbbee (diff) | |
| download | linux-f5090044763fd954a002a6ef466fcbc21033518f.tar.xz | |
usb: dwc2: gadget: don't erase gahbcfg register when enabling dma
Do a read-modify-write instead of only setting DMAEn bit.
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: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/dwc2/gadget.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index b69b8fa8..b98622f 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -2827,8 +2827,8 @@ static void s3c_hsotg_init(struct dwc2_hsotg *hsotg) writel(GUSBCFG_PHYIF16 | GUSBCFG_TOUTCAL(7) | (0x5 << 10), hsotg->regs + GUSBCFG); - writel(using_dma(hsotg) ? GAHBCFG_DMA_EN : 0x0, - hsotg->regs + GAHBCFG); + if (using_dma(hsotg)) + __orr32(hsotg->regs + GAHBCFG, GAHBCFG_DMA_EN); } /** |