AuxXxilium/linux_dsm_epyc7002
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c3897aa538
linux_dsm_epyc7002/drivers/usb/host
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Sarah Sharp c3897aa538 xhci: Disable D3cold for buggy TI redrivers. 
Some xHCI hosts contain a "redriver" from TI that silently drops port
status connect changes if the port slips into Compliance Mode.  If the
port slips into compliance mode while the host is in D0, there will not
be a port status change event.  If the port slips into compliance mode
while the host is in D3, the host will not send a PME.  This includes
when the system is suspended (S3) or hibernated (S4).

If this happens when the system is in S3/S4, there is nothing software
can do.  Other port status change events that would normally cause the
host to wake the system from S3/S4 may also be lost.  This includes
remote wakeup, disconnects and connects on other ports, and overrcurrent
events.  A decision was made to _NOT_ disable system suspend/hibernate
on these systems, since users are unlikely to enable wakeup from S3/S4
for the xHCI host.

Software can deal with this issue when the system is in S0.  A work
around was put in to poll the port status registers for Compliance Mode.
The xHCI driver will continue to poll the registers while the host is
runtime suspended.  Unfortunately, that means we can't allow the PCI
device to go into D3cold, because power will be removed from the host,
and the config space will read as all Fs.

Disable D3cold in the xHCI PCI runtime suspend function.

This patch should be backported to kernels as old as 3.2, that
contain the commit 71c731a296 "usb: host:
xhci: Fix Compliance Mode on SN65LVPE502CP Hardware"

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: Huang Ying <ying.huang@intel.com>
Cc: stable@vger.kernel.org
2013-05-24 15:23:59 -07:00
..
whci USB: whci-hcd: fix NULL dereference on allocation failure 2012-08-15 15:17:39 -07:00
bcma-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
ehci-atmel.c USB: set device dma_mask without reference to global data 2013-05-16 17:30:52 -07:00
ehci-dbg.c USB: EHCI: convert singly-linked lists to list_heads 2013-03-25 13:35:05 -07:00
ehci-fsl.c EHCI: Quirk flag for port power handling on overcurrent. 2013-04-03 11:38:53 -07:00
ehci-fsl.h powerpc/usb: fix bug of CPU hang when missing USB PHY clock 2012-09-05 16:52:08 -07:00
ehci-grlib.c usb: Convert to devm_ioremap_resource() 2013-01-22 11:41:58 -08:00
ehci-hcd.c USB: EHCI: remove bogus #error 2013-05-16 17:29:51 -07:00
ehci-hub.c EHCI: Quirk flag for port power handling on overcurrent. 2013-04-03 11:38:53 -07:00
ehci-mem.c USB: EHCI: use hrtimer for (s)iTD deallocation 2012-07-16 16:54:25 -07:00
ehci-msm.c USB: EHCI: make ehci-msm a separate driver 2013-04-08 09:40:20 -07:00
ehci-mv.c usb: patches for v3.10 merge window 2013-04-05 15:18:00 -07:00
ehci-mxc.c USB: Fix initconst in ehci driver 2013-04-23 10:10:29 -07:00
ehci-octeon.c USB: EHCI: remove ehci_port_power() routine 2012-10-31 12:48:07 -07:00
ehci-omap.c USB: set device dma_mask without reference to global data 2013-05-16 17:30:52 -07:00
ehci-orion.c USB: set device dma_mask without reference to global data 2013-05-16 17:30:52 -07:00
ehci-pci.c USB: Fix initconst in ehci driver 2013-04-23 10:10:29 -07:00
ehci-platform.c USB: Fix initconst in ehci driver 2013-04-23 10:10:29 -07:00
ehci-pmcmsp.c USB: EHCI: remove ehci_port_power() routine 2012-10-31 12:48:07 -07:00
ehci-ppc-of.c usb: Convert to devm_ioremap_resource() 2013-01-22 11:41:58 -08:00
ehci-ps3.c usb: PS3 EHCI remove unneeded ehci_shutdown 2013-04-01 12:32:43 -07:00
ehci-q.c usb: ehci: mark unlink_empty_async_suspended() as __maybe_unused 2013-03-28 14:49:53 -07:00
ehci-s5p.c usb: ehci-s5p: fix memleak when fallback to pdata 2013-05-16 17:35:13 -07:00
ehci-sched.c Merge branch 'usb-linus' into usb-next 2013-03-28 11:00:55 -07:00
ehci-sead3.c usb: Convert to devm_ioremap_resource() 2013-01-22 11:41:58 -08:00
ehci-sh.c usb: echi-sh: Remove driver variable which is not used 2013-03-28 11:14:47 -07:00
ehci-spear.c USB: set device dma_mask without reference to global data 2013-05-16 17:30:52 -07:00
ehci-sysfs.c USB: EHCI: Allow users to override 80% max periodic bandwidth 2011-07-08 14:51:33 -07:00
ehci-tegra.c USB: set device dma_mask without reference to global data 2013-05-16 17:30:52 -07:00
ehci-tilegx.c usb: tilegx: fix memleak when create hcd fail 2013-05-09 13:56:40 -04:00
ehci-timer.c USB: EHCI: improve end_unlink_async() 2013-03-25 13:36:32 -07:00
ehci-w90x900.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
ehci-xilinx-of.c usb: Convert to devm_ioremap_resource() 2013-01-22 11:41:58 -08:00
ehci.h EHCI: Quirk flag for port power handling on overcurrent. 2013-04-03 11:38:53 -07:00
fhci-dbg.c USB: FHCI: Reusing QUICC Engine USB Controller registers from immap_qe.h 2012-06-26 19:42:11 -07:00
fhci-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
fhci-hub.c USB: FHCI: Reusing QUICC Engine USB Controller registers from immap_qe.h 2012-06-26 19:42:11 -07:00
fhci-mem.c USB: make hcd.h public (drivers dependency) 2010-05-20 13:21:30 -07:00
fhci-q.c USB: make hcd.h public (drivers dependency) 2010-05-20 13:21:30 -07:00
fhci-sched.c USB: FHCI: use list_move_tail instead of list_del/list_add_tail 2012-09-05 16:55:18 -07:00
fhci-tds.c USB: FHCI: Reusing QUICC Engine USB Controller registers from immap_qe.h 2012-06-26 19:42:11 -07:00
fhci.h USB: FHCI: Reusing QUICC Engine USB Controller registers from immap_qe.h 2012-06-26 19:42:11 -07:00
fsl-mph-dr-of.c USB: fsl-mph-dr-of: fix regression on mpc5121e 2013-01-11 16:01:06 -08:00
hwa-hc.c Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb 2012-01-09 12:09:47 -08:00
imx21-dbg.c usb: Fix typo in imx21-dbg.c 2012-02-13 14:32:34 -08:00
imx21-hcd.c usb: imx21-hcd: Include missing linux/module.h 2013-01-11 12:01:09 -08:00
imx21-hcd.h ARM: imx: move platform_data definitions 2012-09-14 11:17:21 +02:00
isp116x-hcd.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
isp116x.h Fix common misspellings 2011-03-31 11:26:23 -03:00
isp1362-hcd.c procfs: new helper - PDE_DATA(inode) 2013-04-09 14:13:32 -04:00
isp1362.h USB: host: Remove dead CONFIG_ARCH_KARO 2010-08-10 14:35:40 -07:00
isp1760-hcd.c USB: remove remaining instances of USB_SUSPEND 2013-05-15 13:44:44 -04:00
isp1760-hcd.h usb/isp1760: Allow to optionally trigger low-level chip reset via GPIOLIB. 2011-10-19 13:29:06 -07:00
isp1760-if.c usb: isp1760-if: fix memleak when platform_get_resource fail 2013-05-16 17:35:13 -07:00
Kconfig USB: fix Kconfig logic for USB_UHCI_HCD 2013-05-15 13:41:39 -04:00
Makefile USB: EHCI: make ehci-msm a separate driver 2013-04-08 09:40:20 -07:00
octeon2-common.c usb: Configure octeon2 glue logic for proper uSOF cycle period. 2011-05-03 10:09:32 -07:00
ohci-at91.c USB: set device dma_mask without reference to global data 2013-05-16 17:30:52 -07:00
ohci-da8xx.c ARM: davinci: move platform_data definitions 2012-09-14 11:16:54 +02:00
ohci-dbg.c USB: ohci-dbg.c: remove dbg() usage 2012-05-01 21:33:37 -07:00
ohci-ep93xx.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-exynos.c USB: set device dma_mask without reference to global data 2013-05-16 17:30:52 -07:00
ohci-hcd.c USB: OHCI: fix logic for scheduling isochronous URBs 2013-05-15 13:42:45 -04:00
ohci-hub.c USB: remove CONFIG_USB_SUSPEND option 2013-03-28 11:10:22 -07:00
ohci-jz4740.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
ohci-mem.c USB: OHCI handles more ZFMicro quirks 2007-10-12 14:54:59 -07:00
ohci-nxp.c usb: ohci: fix goto wrong tag in err case 2013-05-16 17:37:20 -07:00
ohci-octeon.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-omap3.c USB: set device dma_mask without reference to global data 2013-05-16 17:30:52 -07:00
ohci-omap.c ARM: arm-soc: Header cleanups 2012-12-12 11:45:16 -08:00
ohci-pci.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-platform.c usb: Convert to devm_ioremap_resource() 2013-01-22 11:41:58 -08:00
ohci-ppc-of.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-ps3.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-pxa27x.c USB: set device dma_mask without reference to global data 2013-05-16 17:30:52 -07:00
ohci-q.c USB: ohci: set urb->hcpriv = NULL immediately, after free it 2013-01-11 16:03:38 -08:00
ohci-s3c2410.c usb: Convert to devm_ioremap_resource() 2013-01-22 11:41:58 -08:00
ohci-sa1111.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-sm501.c USB: OHCI: sm501: fix build failure after ohci_finish_controller_resume removal 2012-10-23 10:18:53 -07:00
ohci-spear.c USB: set device dma_mask without reference to global data 2013-05-16 17:30:52 -07:00
ohci-tilegx.c usb: tilegx: fix memleak when create hcd fail 2013-05-09 13:56:40 -04:00
ohci-tmio.c usb: host: ohci-tmio: fix compile warning 2013-01-11 16:22:53 -08:00
ohci.h USB: move transceiver from ehci_hcd and ohci_hcd to hcd and rename it as phy 2012-06-13 12:38:36 -07:00
oxu210hp-hcd.c USB: remove remaining instances of USB_SUSPEND 2013-05-15 13:44:44 -04:00
oxu210hp.h USB: replace uses of __constant_{endian} 2009-03-24 16:20:33 -07:00
pci-quirks.c usb: Prevent dead ports when xhci is not enabled 2013-01-24 09:56:19 -08:00
pci-quirks.h usb: host: xhci: fix compilation error for non-PCI based stacks 2012-09-05 12:26:11 -07:00
r8a66597-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
r8a66597.h usb/host/r8a66597: remove conditional compilation of clk code 2012-07-30 17:25:12 -07:00
sl811_cs.c drivers/usb: use module_pcmcia_driver() in pcmcia drivers 2013-03-15 12:26:38 -07:00
sl811-hcd.c USB: remove remaining instances of USB_SUSPEND 2013-05-15 13:44:44 -04:00
sl811.h Rename WARN() to WARNING() to clear the namespace 2008-07-25 10:53:29 -07:00
ssb-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
u132-hcd.c USB: remove CONFIG_USB_SUSPEND option 2013-03-28 11:10:22 -07:00
uhci-debug.c USB: uhci: beautify source code 2013-01-24 13:59:26 -08:00
uhci-grlib.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
uhci-hcd.c Merge 3.8-rc5 into usb-next 2013-01-25 12:41:02 -08:00
uhci-hcd.h USB: UHCI: remove unused definition 2013-01-24 13:42:09 -08:00
uhci-hub.c USB: UHCI: fix for suspend of virtual HP controller 2013-05-15 13:41:40 -04:00
uhci-pci.c USB: UHCI: Move PCI specific functions to uhci-pci.c 2011-05-06 18:24:00 -07:00
uhci-platform.c USB: set device dma_mask without reference to global data 2013-05-16 17:30:52 -07:00
uhci-q.c USB: fix latency in uhci-hcd and ohci-hcd 2013-05-15 13:42:45 -04:00
xhci-dbg.c xhci: trivial: Remove assigned but unused slot_ctx. 2012-10-25 13:13:48 -07:00
xhci-ext-caps.h xHCI: Correct the #define XHCI_LEGACY_DISABLE_SMI 2012-04-11 08:31:06 -07:00
xhci-hub.c USB: remove CONFIG_USB_SUSPEND option 2013-03-28 11:10:22 -07:00
xhci-mem.c xhci: fix list access before init 2013-05-24 09:14:47 -07:00
xhci-pci.c xhci: Disable D3cold for buggy TI redrivers. 2013-05-24 15:23:59 -07:00
xhci-plat.c usb: host: xhci-plat: use ioremap_nocache 2012-09-05 12:07:19 -07:00
xhci-ring.c xhci: Don't warn on empty ring for suspended devices. 2013-03-25 10:39:19 -07:00
xhci.c xhci: Disable D3cold for buggy TI redrivers. 2013-05-24 15:23:59 -07:00
xhci.h xhci: Disable D3cold for buggy TI redrivers. 2013-05-24 15:23:59 -07:00