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Commit f5090044 authored by Gregory Herrero's avatar Gregory Herrero Committed by Felipe Balbi
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usb: dwc2: gadget: don't erase gahbcfg register when enabling dma 



Do a read-modify-write instead of only setting DMAEn bit.

Tested-by: default avatarRobert Baldyga <r.baldyga@samsung.com>
Acked-by: default avatarPaul Zimmerman <paulz@synopsys.com>
Signed-off-by: default avatarGregory Herrero <gregory.herrero@intel.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 5f05048e

drivers/usb/dwc2/gadget.c

+2 −2
Original line number Diff line number Diff line
@@ -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);

}



/**