[PATCH 06/29] usb: dwc2: gadget: don't erase gahbcfg register when enabling dma

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From: Gregory Herrero <gregory.herrero@xxxxxxxxx>

Signed-off-by: Gregory Herrero <gregory.herrero@xxxxxxxxx>
---
 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 0b08d4a..58699c3 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -2831,8 +2831,8 @@ 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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