Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 7fcbc95c authored by Gregory Herrero's avatar Gregory Herrero Committed by Felipe Balbi
Browse files

usb: dwc2: gadget: reset fifo_map when initializing fifos 



After all endpoints are disabled, fifo_map should have reached 0.
Its a bug if if didn't, so warn about it and reset it to 0 so that
driver can continue using all the fifos.

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 avatarMian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 4556e12c

drivers/usb/dwc2/gadget.c

+4 −0
Original line number Original line Diff line number Diff line
@@ -177,6 +177,10 @@ static void s3c_hsotg_init_fifo(struct dwc2_hsotg *hsotg) 
	int timeout;

	int timeout;

	u32 val;

	u32 val;





	/* Reset fifo map if not correctly cleared during previous session */

	WARN_ON(hsotg->fifo_map);

	hsotg->fifo_map = 0;



	/* set RX/NPTX FIFO sizes */

	/* set RX/NPTX FIFO sizes */

	writel(hsotg->g_rx_fifo_sz, hsotg->regs + GRXFSIZ);

	writel(hsotg->g_rx_fifo_sz, hsotg->regs + GRXFSIZ);

	writel((hsotg->g_rx_fifo_sz << FIFOSIZE_STARTADDR_SHIFT) |

	writel((hsotg->g_rx_fifo_sz << FIFOSIZE_STARTADDR_SHIFT) |