Commit 62f4b242 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

Merge tag 'for-usb-next-2013-08-27' of... 

Merge tag 'for-usb-next-2013-08-27' of git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci into usb-next

Sarah writes:

xhci: Bug fixes for 3.12.

Hi Greg,

Here's three low-priority bug fixes that should be queued for 3.12.
They disable runtime PM for hosts that need the XHCI_RESET_ON_RESUME
quirk, fix USB 2.0 Link PM on hosts that don't have BESL support, and
prevent a bunch of log spam.

Please pull into usb-next for 3.12.

Sarah Sharp
parents ce26bd23 0730d52a

drivers/usb/host/xhci-ext-caps.h

+1 −1
Original line number Diff line number Diff line
@@ -71,7 +71,7 @@ 


/* USB 2.0 xHCI 1.0 hardware LMP capability - section 7.2.2.1.3.2 */

#define XHCI_HLC               (1 << 19)

#define XHCI_BLC               (1 << 19)

#define XHCI_BLC               (1 << 20)



/* command register values to disable interrupts and halt the HC */

/* start/stop HC execution - do not write unless HC is halted*/

drivers/usb/host/xhci-ring.c

+8 −16
Original line number Diff line number Diff line
@@ -3087,14 +3087,10 @@ int xhci_queue_intr_tx(struct xhci_hcd *xhci, gfp_t mem_flags, 
	 * to set the polling interval (once the API is added).

	 */

	if (xhci_interval != ep_interval) {

		if (printk_ratelimit())

			dev_dbg(&urb->dev->dev, "Driver uses different interval"

					" (%d microframe%s) than xHCI "

					"(%d microframe%s)\n",

					ep_interval,

					ep_interval == 1 ? "" : "s",

					xhci_interval,

					xhci_interval == 1 ? "" : "s");

		dev_dbg_ratelimited(&urb->dev->dev,

				"Driver uses different interval (%d microframe%s) than xHCI (%d microframe%s)\n",

				ep_interval, ep_interval == 1 ? "" : "s",

				xhci_interval, xhci_interval == 1 ? "" : "s");

		urb->interval = xhci_interval;

		/* Convert back to frames for LS/FS devices */

		if (urb->dev->speed == USB_SPEED_LOW ||
@@ -3876,14 +3872,10 @@ int xhci_queue_isoc_tx_prepare(struct xhci_hcd *xhci, gfp_t mem_flags, 
	 * to set the polling interval (once the API is added).

	 */

	if (xhci_interval != ep_interval) {

		if (printk_ratelimit())

			dev_dbg(&urb->dev->dev, "Driver uses different interval"

					" (%d microframe%s) than xHCI "

					"(%d microframe%s)\n",

					ep_interval,

					ep_interval == 1 ? "" : "s",

					xhci_interval,

					xhci_interval == 1 ? "" : "s");

		dev_dbg_ratelimited(&urb->dev->dev,

				"Driver uses different interval (%d microframe%s) than xHCI (%d microframe%s)\n",

				ep_interval, ep_interval == 1 ? "" : "s",

				xhci_interval, xhci_interval == 1 ? "" : "s");

		urb->interval = xhci_interval;

		/* Convert back to frames for LS/FS devices */

		if (urb->dev->speed == USB_SPEED_LOW ||

drivers/usb/host/xhci.c

+22 −0
Original line number Diff line number Diff line
@@ -3557,10 +3557,21 @@ void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev) 
{

	struct xhci_hcd *xhci = hcd_to_xhci(hcd);

	struct xhci_virt_device *virt_dev;

	struct device *dev = hcd->self.controller;

	unsigned long flags;

	u32 state;

	int i, ret;



#ifndef CONFIG_USB_DEFAULT_PERSIST

	/*

	 * We called pm_runtime_get_noresume when the device was attached.

	 * Decrement the counter here to allow controller to runtime suspend

	 * if no devices remain.

	 */

	if (xhci->quirks & XHCI_RESET_ON_RESUME)

		pm_runtime_put_noidle(dev);

#endif



	ret = xhci_check_args(hcd, udev, NULL, 0, true, __func__);

	/* If the host is halted due to driver unload, we still need to free the

	 * device.
@@ -3634,6 +3645,7 @@ static int xhci_reserve_host_control_ep_resources(struct xhci_hcd *xhci) 
int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev)

{

	struct xhci_hcd *xhci = hcd_to_xhci(hcd);

	struct device *dev = hcd->self.controller;

	unsigned long flags;

	int timeleft;

	int ret;
@@ -3686,6 +3698,16 @@ int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev) 
		goto disable_slot;

	}

	udev->slot_id = xhci->slot_id;



#ifndef CONFIG_USB_DEFAULT_PERSIST

	/*

	 * If resetting upon resume, we can't put the controller into runtime

	 * suspend if there is a device attached.

	 */

	if (xhci->quirks & XHCI_RESET_ON_RESUME)

		pm_runtime_get_noresume(dev);

#endif



	/* Is this a LS or FS device under a HS hub? */

	/* Hub or peripherial? */

	return 1;

CRA Git | Maintained and supported by SUSTech CRA and CCSE