Merge tag 'usb-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/PHY updates from Greg KH:
 "Here is the big set of USB and PHY driver patches for 4.21-rc1.

  All of the usual bits are in here:

  - loads of USB gadget driver updates and additions

  - new device ids

  - phy driver updates

  - xhci reworks and new features

  - typec updates

  Full details are in the shortlog.

  All of these have been in linux-next for a long time with no reported
  issues"

* tag 'usb-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (142 commits)
  USB: serial: option: add Fibocom NL678 series
  cdc-acm: fix abnormal DATA RX issue for Mediatek Preloader.
  usb: r8a66597: Fix a possible concurrency use-after-free bug in r8a66597_endpoint_disable()
  usb: typec: tcpm: Extend the matching rules on PPS APDO selection
  usb: typec: Improve Alt Mode documentation
  usb: musb: dsps: fix runtime pm for peripheral mode
  usb: musb: dsps: fix otg state machine
  USB: serial: pl2303: add ids for Hewlett-Packard HP POS pole displays
  usb: renesas_usbhs: add support for RZ/G2E
  usb: ehci-omap: Fix deferred probe for phy handling
  usb: roles: Add a description for the class to Kconfig
  usb: renesas_usbhs: mark PM functions as __maybe_unused
  usb: core: Remove unnecessary memset()
  usb: host: isp1362-hcd: convert to DEFINE_SHOW_ATTRIBUTE
  phy: qcom-qmp: Expose provided clocks to DT
  dt-bindings: phy-qcom-qmp: Move #clock-cells to child
  phy: qcom-qmp: Utilize fully-specified DT registers
  dt-bindings: phy-qcom-qmp: Fix register underspecification
  phy: ti: fix semicolon.cocci warnings
  phy: dphy: Add configuration helpers
  ...

1 files changed, 92 insertions, 0 deletions

diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
index d858a82c4f44..b45ceb91c735 100644
--- a/drivers/usb/chipidea/host.c
+++ b/drivers/usb/chipidea/host.c
@@ -170,6 +170,11 @@ static int host_start(struct ci_hdrc *ci)
 			otg->host = &hcd->self;
 			hcd->self.otg_port = 1;
 		}
+
+		if (ci->platdata->notify_event &&
+			(ci->platdata->flags & CI_HDRC_IMX_IS_HSIC))
+			ci->platdata->notify_event
+				(ci, CI_HDRC_IMX_HSIC_ACTIVE_EVENT);
 	}
 
 	return ret;
@@ -215,9 +220,85 @@ void ci_hdrc_host_destroy(struct ci_hdrc *ci)
 		host_stop(ci);
 }
 
+/* The below code is based on tegra ehci driver */
+static int ci_ehci_hub_control(
+	struct usb_hcd	*hcd,
+	u16		typeReq,
+	u16		wValue,
+	u16		wIndex,
+	char		*buf,
+	u16		wLength
+)
+{
+	struct ehci_hcd	*ehci = hcd_to_ehci(hcd);
+	u32 __iomem	*status_reg;
+	u32		temp;
+	unsigned long	flags;
+	int		retval = 0;
+	struct device *dev = hcd->self.controller;
+	struct ci_hdrc *ci = dev_get_drvdata(dev);
+
+	status_reg = &ehci->regs->port_status[(wIndex & 0xff) - 1];
+
+	spin_lock_irqsave(&ehci->lock, flags);
+
+	if (typeReq == SetPortFeature && wValue == USB_PORT_FEAT_SUSPEND) {
+		temp = ehci_readl(ehci, status_reg);
+		if ((temp & PORT_PE) == 0 || (temp & PORT_RESET) != 0) {
+			retval = -EPIPE;
+			goto done;
+		}
+
+		temp &= ~(PORT_RWC_BITS | PORT_WKCONN_E);
+		temp |= PORT_WKDISC_E | PORT_WKOC_E;
+		ehci_writel(ehci, temp | PORT_SUSPEND, status_reg);
+
+		/*
+		 * If a transaction is in progress, there may be a delay in
+		 * suspending the port. Poll until the port is suspended.
+		 */
+		if (ehci_handshake(ehci, status_reg, PORT_SUSPEND,
+			PORT_SUSPEND, 5000))
+			ehci_err(ehci, "timeout waiting for SUSPEND\n");
+
+		if (ci->platdata->flags & CI_HDRC_IMX_IS_HSIC) {
+			if (ci->platdata->notify_event)
+				ci->platdata->notify_event(ci,
+					CI_HDRC_IMX_HSIC_SUSPEND_EVENT);
+
+			temp = ehci_readl(ehci, status_reg);
+			temp &= ~(PORT_WKDISC_E | PORT_WKCONN_E);
+			ehci_writel(ehci, temp, status_reg);
+		}
+
+		set_bit((wIndex & 0xff) - 1, &ehci->suspended_ports);
+		goto done;
+	}
+
+	/*
+	 * After resume has finished, it needs do some post resume
+	 * operation for some SoCs.
+	 */
+	else if (typeReq == ClearPortFeature &&
+		wValue == USB_PORT_FEAT_C_SUSPEND) {
+		/* Make sure the resume has finished, it should be finished */
+		if (ehci_handshake(ehci, status_reg, PORT_RESUME, 0, 25000))
+			ehci_err(ehci, "timeout waiting for resume\n");
+	}
+
+	spin_unlock_irqrestore(&ehci->lock, flags);
+
+	/* Handle the hub control events here */
+	return ehci_hub_control(hcd, typeReq, wValue, wIndex, buf, wLength);
+done:
+	spin_unlock_irqrestore(&ehci->lock, flags);
+	return retval;
+}
 static int ci_ehci_bus_suspend(struct usb_hcd *hcd)
 {
 	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
+	struct device *dev = hcd->self.controller;
+	struct ci_hdrc *ci = dev_get_drvdata(dev);
 	int port;
 	u32 tmp;
 
@@ -249,6 +330,16 @@ static int ci_ehci_bus_suspend(struct usb_hcd *hcd)
 			 * It needs a short delay between set RS bit and PHCD.
 			 */
 			usleep_range(150, 200);
+			/*
+			 * Need to clear WKCN and WKOC for imx HSIC,
+			 * otherwise, there will be wakeup event.
+			 */
+			if (ci->platdata->flags & CI_HDRC_IMX_IS_HSIC) {
+				tmp = ehci_readl(ehci, reg);
+				tmp &= ~(PORT_WKDISC_E | PORT_WKCONN_E);
+				ehci_writel(ehci, tmp, reg);
+			}
+
 			break;
 		}
 	}
@@ -281,4 +372,5 @@ void ci_hdrc_host_driver_init(void)
 	ehci_init_driver(&ci_ehci_hc_driver, &ehci_ci_overrides);
 	orig_bus_suspend = ci_ehci_hc_driver.bus_suspend;
 	ci_ehci_hc_driver.bus_suspend = ci_ehci_bus_suspend;
+	ci_ehci_hc_driver.hub_control = ci_ehci_hub_control;
 }