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usb: dwc2: host: add flag to reflect bus state

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lx_state must be used to reflect controller power state only and not
bus state. Thus add a flag to track state during bus suspend.

Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Tested-by: Robert Baldyga <r.baldyga@samsung.com>
Tested-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Tested-by: John Youn <johnyoun@synopsys.com>
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Gregory Herrero 2015-09-22 15:16:39 +02:00 committed by Felipe Balbi
parent 30db103c3d
commit 734643dfbd
2 changed files with 4 additions and 2 deletions
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1
drivers/usb/dwc2/core.h
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@ -764,6 +764,7 @@ struct dwc2_hsotg {
u16 frame_usecs[8];
u16 frame_number;
u16 periodic_qh_count;
bool bus_suspended;
#ifdef CONFIG_USB_DWC2_TRACK_MISSED_SOFS
#define FRAME_NUM_ARRAY_SIZE 1000

5
drivers/usb/dwc2/hcd.c
View File

@ -1425,6 +1425,7 @@ static void dwc2_wakeup_detected(unsigned long data)
dev_dbg(hsotg->dev, "Clear Resume: HPRT0=%0x\n",
dwc2_readl(hsotg->regs + HPRT0));
hsotg->bus_suspended = 0;
dwc2_hcd_rem_wakeup(hsotg);
/* Change to L0 state */
@ -1461,8 +1462,7 @@ static void dwc2_port_suspend(struct dwc2_hsotg *hsotg, u16 windex)
hprt0 |= HPRT0_SUSP;
dwc2_writel(hprt0, hsotg->regs + HPRT0);
/* Update lx_state */
hsotg->lx_state = DWC2_L2;
hsotg->bus_suspended = 1;
/* Suspend the Phy Clock */
pcgctl = dwc2_readl(hsotg->regs + PCGCTL);
@ -1510,6 +1510,7 @@ static void dwc2_port_resume(struct dwc2_hsotg *hsotg)
hprt0 = dwc2_read_hprt0(hsotg);
hprt0 &= ~(HPRT0_RES | HPRT0_SUSP);
dwc2_writel(hprt0, hsotg->regs + HPRT0);
hsotg->bus_suspended = 0;
spin_unlock_irqrestore(&hsotg->lock, flags);
}