linux-imx/drivers/usb/host
Wesley Cheng f83810e0ec usb: host: xhci: Avoid XHCI resume delay if SSUSB device is not present
[ Upstream commit 6add6dd345 ]

There is a 120ms delay implemented for allowing the XHCI host controller to
detect a U3 wakeup pulse.  The intention is to wait for the device to retry
the wakeup event if the USB3 PORTSC doesn't reflect the RESUME link status
by the time it is checked.  As per the USB3 specification:

  tU3WakeupRetryDelay ("Table 7-12. LTSSM State Transition Timeouts")

This would allow the XHCI resume sequence to determine if the root hub
needs to be also resumed.  However, in case there is no device connected,
or if there is only a HSUSB device connected, this delay would still affect
the overall resume timing.

Since this delay is solely for detecting U3 wake events (USB3 specific)
then ignore this delay for the disconnected case and the HSUSB connected
only case.

[skip helper function, rename usb3_connected variable -Mathias ]

Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20231019102924.2797346-20-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-28 17:19:45 +00:00
..
bcma-hcd.c
ehci-atmel.c usb: host: Do not check for 0 return after calling platform_get_irq() 2023-08-04 14:46:53 +02:00
ehci-brcm.c usb: host: Do not check for 0 return after calling platform_get_irq() 2023-08-04 14:46:53 +02:00
ehci-dbg.c
ehci-exynos.c usb: ehci-exynos: Use devm_platform_get_and_ioremap_resource() 2023-07-27 10:24:11 +02:00
ehci-fsl.c usb: ehci-fsl: Use devm_platform_get_and_ioremap_resource() 2023-07-27 10:24:10 +02:00
ehci-fsl.h
ehci-grlib.c usb: ehci-grlib: Convert to platform remove callback returning void 2023-05-28 12:36:28 +01:00
ehci-hcd.c usb: ehci: add workaround for chipidea PORTSC.PEC bug 2023-08-09 14:16:06 +02:00
ehci-hub.c usb: ehci: add workaround for chipidea PORTSC.PEC bug 2023-08-09 14:16:06 +02:00
ehci-mem.c
ehci-mv.c usb: ehci-mv: Use devm_platform_get_and_ioremap_resource() 2023-07-27 10:24:11 +02:00
ehci-npcm7xx.c usb: ehci-npcm7xx: Use devm_platform_get_and_ioremap_resource() 2023-07-27 10:24:10 +02:00
ehci-omap.c usb: ehci-omap: Use devm_platform_get_and_ioremap_resource() 2023-07-27 10:24:10 +02:00
ehci-orion.c usb: host: Do not check for 0 return after calling platform_get_irq() 2023-08-04 14:46:53 +02:00
ehci-pci.c USB: Extend pci resume function to handle PM events 2023-05-13 17:33:18 +09:00
ehci-platform.c usb: ehci-platform: Use devm_platform_get_and_ioremap_resource() 2023-07-27 10:24:09 +02:00
ehci-ppc-of.c usb: ehci-ppc-of: Convert to platform remove callback returning void 2023-05-28 12:36:29 +01:00
ehci-ps3.c
ehci-q.c
ehci-sched.c usb: host: ehci-sched: try to turn on io watchdog as long as periodic_count > 0 2023-08-12 10:03:22 +02:00
ehci-sh.c usb: host: Do not check for 0 return after calling platform_get_irq() 2023-08-04 14:46:53 +02:00
ehci-spear.c usb: ehci-spear: Use devm_platform_get_and_ioremap_resource() 2023-07-27 10:24:09 +02:00
ehci-st.c usb: ehci-st: Use devm_platform_get_and_ioremap_resource() 2023-07-27 10:24:11 +02:00
ehci-sysfs.c
ehci-timer.c
ehci-xilinx-of.c usb: ehci-xilinx-of: Convert to platform remove callback returning void 2023-05-28 12:36:29 +01:00
ehci.h usb: ehci: add workaround for chipidea PORTSC.PEC bug 2023-08-09 14:16:06 +02:00
fhci-dbg.c
fhci-hcd.c usb: Explicitly include correct DT includes 2023-07-25 18:20:02 +02:00
fhci-hub.c
fhci-mem.c
fhci-q.c
fhci-sched.c
fhci-tds.c
fhci.h
fsl-mph-dr-of.c usb: Explicitly include correct DT includes 2023-07-25 18:20:02 +02:00
isp116x-hcd.c usb: isp116x-hcd: Convert to platform remove callback returning void 2023-05-28 12:36:29 +01:00
isp116x.h
isp1362-hcd.c usb: isp1362-hcd: Use devm_platform_get_and_ioremap_resource() 2023-07-27 10:24:09 +02:00
isp1362.h
Kconfig usb: add HAS_IOPORT dependencies 2023-05-29 15:28:34 +01:00
Makefile
max3421-hcd.c
octeon-hcd.c usb: octeon-hcd: Convert to platform remove callback returning void 2023-05-28 12:36:30 +01:00
octeon-hcd.h
ohci-at91.c usb: ohci-at91: Fix the unhandle interrupt when resume 2023-07-30 13:26:09 +02:00
ohci-da8xx.c usb: ohci-da8xx: Use devm_platform_get_and_ioremap_resource() 2023-07-27 10:24:09 +02:00
ohci-dbg.c
ohci-exynos.c usb: ohci-exynos: Use devm_platform_get_and_ioremap_resource() 2023-07-27 10:24:10 +02:00
ohci-hcd.c
ohci-hub.c
ohci-mem.c
ohci-nxp.c usb: ohci-nxp: Use devm_platform_get_and_ioremap_resource() 2023-07-27 10:24:10 +02:00
ohci-omap.c usb: ohci-omap: Convert to platform remove callback returning void 2023-05-28 12:36:30 +01:00
ohci-pci.c USB: Extend pci resume function to handle PM events 2023-05-13 17:33:18 +09:00
ohci-platform.c usb: host: ohci-platform: Use devm_platform_get_and_ioremap_resource() 2023-07-27 10:24:09 +02:00
ohci-ppc-of.c usb: Explicitly include correct DT includes 2023-07-25 18:20:02 +02:00
ohci-ps3.c
ohci-pxa27x.c usb: ohci-pxa27x: Use devm_platform_get_and_ioremap_resource() 2023-07-27 10:24:10 +02:00
ohci-q.c
ohci-s3c2410.c usb: ohci-s3c2410: Convert to platform remove callback returning void 2023-05-28 12:36:31 +01:00
ohci-sa1111.c
ohci-sm501.c USB: ohci-sm501: remove unnecessary check of mem 2023-08-12 10:03:16 +02:00
ohci-spear.c usb: ohci-spear: Use devm_platform_get_and_ioremap_resource() 2023-07-27 10:24:10 +02:00
ohci-st.c usb: ohci-st: Use devm_platform_get_and_ioremap_resource() 2023-07-27 10:24:11 +02:00
ohci.h
oxu210hp-hcd.c usb: oxu210hp-hcd: Use devm_platform_get_and_ioremap_resource() 2023-07-27 10:24:10 +02:00
pci-quirks.c usb: pci-quirks: Reduce the length of a spinlock section in usb_amd_find_chipset_info() 2023-03-29 09:02:19 +02:00
pci-quirks.h
r8a66597-hcd.c usb: r8a66597-hcd: Convert to platform remove callback returning void 2023-05-28 12:36:31 +01:00
r8a66597.h
sl811_cs.c
sl811-hcd.c usb: sl811-hcd: Convert to platform remove callback returning void 2023-05-28 12:36:32 +01:00
sl811.h
ssb-hcd.c
uhci-debug.c
uhci-grlib.c usb: uhci-grlib: Convert to platform remove callback returning void 2023-05-28 12:36:32 +01:00
uhci-hcd.c usb: uhci: handle HAS_IOPORT dependencies 2023-05-29 15:29:03 +01:00
uhci-hcd.h usb: uhci: handle HAS_IOPORT dependencies 2023-05-29 15:29:03 +01:00
uhci-hub.c
uhci-pci.c Merge 6.4-rc4 into usb-next 2023-05-28 15:25:53 +01:00
uhci-platform.c usb: uhci-platform: Use devm_platform_get_and_ioremap_resource() 2023-07-27 10:24:11 +02:00
uhci-q.c
xen-hcd.c
xhci-dbg.c
xhci-dbgcap.c
xhci-dbgcap.h
xhci-dbgtty.c tty: make tty_operations::write()'s count size_t 2023-08-11 21:12:46 +02:00
xhci-debugfs.c xhci: fix debugfs register accesses while suspended 2023-04-20 10:13:06 +02:00
xhci-debugfs.h
xhci-ext-caps.c
xhci-ext-caps.h
xhci-histb.c xhci: get rid of XHCI_PLAT quirk that used to prevent MSI setup 2023-06-13 11:34:50 +02:00
xhci-hub.c xhci: track port suspend state correctly in unsuccessful resume cases 2023-10-02 16:33:46 +02:00
xhci-mem.c xhci: Preserve RsvdP bits in ERSTBA register correctly 2023-10-02 16:33:46 +02:00
xhci-mtk-sch.c
xhci-mtk.c usb: xhci-mtk: set the dma max_seg_size 2023-07-25 17:40:54 +02:00
xhci-mtk.h usb: xhci-mtk: add optional frame count clock 2023-04-20 10:13:39 +02:00
xhci-mvebu.c
xhci-mvebu.h
xhci-pci-renesas.c
xhci-pci.c xhci: Loosen RPM as default policy to cover for AMD xHC 1.1 2023-11-20 11:59:29 +01:00
xhci-pci.h
xhci-plat.c usb: host: xhci-plat: fix possible kernel oops while resuming 2023-11-20 11:59:29 +01:00
xhci-plat.h usb: xhci-plat: Convert to platform remove callback returning void 2023-05-30 15:27:17 +01:00
xhci-rcar.c usb: Explicitly include correct DT includes 2023-07-25 18:20:02 +02:00
xhci-ring.c xhci: Clear EHB bit only at end of interrupt handler 2023-10-02 16:33:46 +02:00
xhci-rzv2m.c
xhci-rzv2m.h
xhci-tegra.c Merge 6.5-rc4 into usb-next 2023-07-31 09:36:55 +02:00
xhci-trace.c
xhci-trace.h xhci: Stop unnecessary tracking of free trbs in a ring 2023-06-13 11:34:50 +02:00
xhci.c usb: host: xhci: Avoid XHCI resume delay if SSUSB device is not present 2023-11-28 17:19:45 +00:00
xhci.h xhci: Preserve RsvdP bits in ERSTBA register correctly 2023-10-02 16:33:46 +02:00