From cc047ce4be6188d3bd3997b44ec724ce390fbdcb Mon Sep 17 00:00:00 2001 From: Gregory Herrero Date: Tue, 22 Sep 2015 15:16:37 +0200 Subject: [PATCH] usb: dwc2: host: don't clear hprt0 status bits when exiting hibernation When entering hibernation hprt0 must be read using dwc2_read_hprt0(). Otherwise, any set hprt0 status bits will be cleared when restoring hprt0 on exit from hibernation. Signed-off-by: Gregory Herrero Signed-off-by: Mian Yousaf Kaukab Tested-by: Robert Baldyga Tested-by: Dinh Nguyen Tested-by: John Youn Acked-by: John Youn Signed-off-by: Felipe Balbi --- drivers/usb/dwc2/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/dwc2/core.c b/drivers/usb/dwc2/core.c index fc0521aeed77..0bfc987dd373 100644 --- a/drivers/usb/dwc2/core.c +++ b/drivers/usb/dwc2/core.c @@ -78,7 +78,7 @@ static int dwc2_backup_host_registers(struct dwc2_hsotg *hsotg) for (i = 0; i < hsotg->core_params->host_channels; ++i) hr->hcintmsk[i] = dwc2_readl(hsotg->regs + HCINTMSK(i)); - hr->hprt0 = dwc2_readl(hsotg->regs + HPRT0); + hr->hprt0 = dwc2_read_hprt0(hsotg); hr->hfir = dwc2_readl(hsotg->regs + HFIR); hr->valid = true;