kernel/git/stable/linux.git/drivers/usb/host, branch linux-4.18.y

xhci: Avoid USB autosuspend when resuming USB2 ports.

2018-11-13T19:12:32+00:00

[ Upstream commit 330e2d61cdd58363eb5e66b2e72f76fe3c5492e0 ] When USB bus host controller root hub resumes from autosuspend, it immediately tries to enter auto-suspend, but there can be a scenario when root hub is resuming its usb2 ports, in that particular case USB host controller auto suspend fails since it is busy to resuming its usb2 ports. This makes multiple failed cycles of auto-suspend until all usb2 ports of host controller root hub do not resume. This patch uses USB core framework usb_hcd_start_port_resume, usb_hcd_end_port_resume API's in order to autoresume/autosuspend root hub properly. Signed-off-by: Anshuman Gupta Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

usb: host: ohci-at91: fix request of irq for optional gpio

2018-11-13T19:12:30+00:00

[ Upstream commit 325b9313ec3be56c8e2fe03f977fee19cec75820 ] atmel,oc-gpio is optional. Request its irq only when atmel,oc is set in device tree. devm_gpiod_get_index_optional returns NULL if -ENOENT. Check its return value for NULL before error, because it is more probable that atmel,oc is not set. This fixes the following errors on boards where atmel,oc is not set in device tree: [ 0.960000] at91_ohci 500000.ohci: failed to request gpio "overcurrent" IRQ [ 0.960000] at91_ohci 500000.ohci: failed to request gpio "overcurrent" IRQ [ 0.970000] at91_ohci 500000.ohci: failed to request gpio "overcurrent" IRQ Signed-off-by: Tudor Ambarus Acked-by: Nicolas Ferre Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

usb: xhci: pci: Enable Intel USB role mux on Apollo Lake platforms

2018-11-10T15:49:47+00:00

commit c02588a352defaf985fc1816eb6232663159e1b8 upstream. Intel Apollo Lake has the same internal USB role mux as Intel Cherry Trail. Cc: Signed-off-by: Heikki Krogerus Signed-off-by: Greg Kroah-Hartman

usb: xhci-mtk: resume USB3 roothub first

2018-10-13T07:33:14+00:00

commit 555df5820e733cded7eb8d0bf78b2a791be51d75 upstream. Give USB3 devices a better chance to enumerate at USB3 speeds if they are connected to a suspended host. Porting from "671ffdff5b13 xhci: resume USB 3 roothub first" Cc: Signed-off-by: Chunfeng Yun Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman

xhci: Add missing CAS workaround for Intel Sunrise Point xHCI

2018-10-13T07:33:14+00:00

commit ffe84e01bb1b38c7eb9c6b6da127a6c136d251df upstream. The workaround for missing CAS bit is also needed for xHC on Intel sunrisepoint PCH. For more details see: Intel 100/c230 series PCH specification update Doc #332692-006 Errata #8 Cc: Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman

usb: host: xhci-plat: Iterate over parent nodes for finding quirks

2018-10-10T06:56:00+00:00

[ Upstream commit 222471f7640d9771a993218d825d84825adc805d ] In xhci_plat_probe() both sysdev and pdev->dev are being used for finding quirks. There are some drivers(like dwc3 host.c) which adds quirks(like usb3-lpm-capable) into pdev and the logic present in xhci_plat_probe() checks for quirks in either sysdev or pdev for finding the quirks. Because of this logic, some of the quirks are getting missed(usb3-lpm-capable quirk added by dwc3 host.c driver is getting missed).This patch fixes this by iterating over all the available parents for finding the quirks. In this way all the quirks which are present in child or parent are correctly updated. Signed-off-by: Anurag Kumar Vulisha Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

usb: host: u132-hcd: Fix a sleep-in-atomic-context bug in u132_get_frame()

2018-09-26T06:39:32+00:00

commit 6d4f268fa132742fe96dad22307c68d237356d88 upstream. i_usX2Y_subs_startup in usbusx2yaudio.c is a completion handler function for the USB driver. So it should not sleep, but it is can sleep according to the function call paths (from bottom to top) in Linux-4.16. [FUNC] msleep drivers/usb/host/u132-hcd.c, 2558: msleep in u132_get_frame drivers/usb/core/hcd.c, 2231: [FUNC_PTR]u132_get_frame in usb_hcd_get_frame_number drivers/usb/core/usb.c, 822: usb_hcd_get_frame_number in usb_get_current_frame_number sound/usb/usx2y/usbusx2yaudio.c, 303: usb_get_current_frame_number in i_usX2Y_urb_complete sound/usb/usx2y/usbusx2yaudio.c, 366: i_usX2Y_urb_complete in i_usX2Y_subs_startup Note that [FUNC_PTR] means a function pointer call is used. To fix this bug, msleep() is replaced with mdelay(). This bug is found by my static analysis tool DSAC. Signed-off-by: Jia-Ju Bai Cc: stable Signed-off-by: Greg Kroah-Hartman

usb: xhci: fix interrupt transfer error happened on MTK platforms

2018-09-26T06:39:31+00:00

commit 0a3b53305c8ff427bbc1d9d5bd78524007f19600 upstream. The MTK xHCI controller use some reserved bytes in endpoint context for bandwidth scheduling, so need keep them in xhci_endpoint_copy(); The issue is introduced by: commit f5249461b504 ("xhci: Clear the host side toggle manually when endpoint is soft reset") It resets endpoints and will drop bandwidth scheduling parameters used by interrupt or isochronous endpoints on MTK xHCI controller. Fixes: f5249461b504 ("xhci: Clear the host side toggle manually when endpoint is soft reset") Cc: stable@vger.kernel.org Signed-off-by: Chunfeng Yun Tested-by: Sean Wang Signed-off-by: Greg Kroah-Hartman

xhci: Fix use after free for URB cancellation on a reallocated endpoint

2018-09-26T06:39:31+00:00

commit 4937213ba7fafa13f30496b3965ffe93970d8b53 upstream. Make sure the cancelled URB is on the current endpoint ring. If the endpoint ring has been reallocated since the URB was enqueued then the URB may contain TD and TRB pointers to a already freed ring. In this the case return the URB without touching any of the freed ring structure data. Don't try to stop the ring. It would be useless. This can occur if endpoint is not flushed before it is dropped and re-added, which is the case in usb_set_interface() as xhci does things in an odd order. Cc: Tested-by: Sudip Mukherjee Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman

usb: xhci: Fix memory leak in xhci_endpoint_reset()

2018-07-20T15:17:21+00:00

If td_list is not empty the cfg_cmd will not be freed, call xhci_free_command to free it. Signed-off-by: Zheng Xiaowei Cc: Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman