From 734643dfbdde7dd881b2c16404a86f444287414e Mon Sep 17 00:00:00 2001 From: Gregory Herrero Date: Tue, 22 Sep 2015 15:16:39 +0200 Subject: [PATCH] usb: dwc2: host: add flag to reflect bus state 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 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.h | 1 + drivers/usb/dwc2/hcd.c | 5 +++-- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h index 1a7982dbdad5..d2115d2a3db2 100644 --- a/drivers/usb/dwc2/core.h +++ b/drivers/usb/dwc2/core.h @@ -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 diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c index b929087f26f2..490ecb74382c 100644 --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -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); } -- 2.30.2