From: Gregory Herrero <gregory.herr...@intel.com>
Do a read-modify-write instead of only setting DMAEn bit.
Signed-off-by: Gregory Herrero <gregory.herr...@intel.com>
---
drivers/usb/dwc2/gadget.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 4d414f3..6a9083c 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);
}
/**
--
1.9.1
--
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