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alistair23-linux/drivers/usb/host
JC Kuo da7e0c3c29 xhci: tegra: Delay for disabling LFPS detector
Occasionally, we are seeing some SuperSpeed devices resumes right after
being directed to U3. This commits add 500us delay to ensure LFPS
detector is disabled before sending ACK to firmware.

[   16.099363] tegra-xusb 70090000.usb: entering ELPG
[   16.104343] tegra-xusb 70090000.usb: 2-1 isn't suspended: 0x0c001203
[   16.114576] tegra-xusb 70090000.usb: not all ports suspended: -16
[   16.120789] tegra-xusb 70090000.usb: entering ELPG failed

The register write passes through a few flop stages of 32KHz clock domain.
NVIDIA ASIC designer reviewed RTL and suggests 500us delay.

Cc: stable@vger.kernel.org
Signed-off-by: JC Kuo <jckuo@nvidia.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20210115161907.2875631-3-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-15 17:27:31 +01:00
..
Kconfig usb: host: ehci-mxc: Remove the driver 2020-11-14 00:28:16 +01:00
Makefile usb: host: ehci-mxc: Remove the driver 2020-11-14 00:28:16 +01:00
bcma-hcd.c USB: bcma: use module_bcma_driver to simplify the code 2020-09-22 10:37:13 +02:00
ehci-atmel.c
ehci-brcm.c usb: ehci: Add new EHCI driver for Broadcom STB SoC's 2020-05-13 14:28:01 +02:00
ehci-dbg.c usb: host: Use fallthrough pseudo-keyword 2020-07-10 08:55:18 +02:00
ehci-exynos.c usb: host: ehci-exynos: Fix error check in exynos_ehci_probe() 2020-06-18 10:40:57 +02:00
ehci-fsl.c usb: hosts: Remove in_interrupt() from comments 2020-10-28 12:32:12 +01:00
ehci-fsl.h USB: host: Use the correct style for SPDX License Identifier 2020-04-16 14:32:46 +02:00
ehci-grlib.c
ehci-hcd.c ehci: fix EHCI host controller initialization sequence 2021-01-12 17:16:37 +01:00
ehci-hub.c USB: ehci: fix an interrupt calltrace error 2021-01-12 17:24:27 +01:00
ehci-mem.c
ehci-mv.c USB: EHCI: ehci-mv: fix less than zero comparison of an unsigned int 2020-05-19 15:11:43 +02:00
ehci-npcm7xx.c usb/host: ehci-npcm7xx: Use pm_ptr() macro 2020-09-04 16:54:47 +02:00
ehci-omap.c usb: ehci-omap: Fix PM disable depth umbalance in ehci_hcd_omap_probe 2020-12-09 14:33:45 +01:00
ehci-orion.c
ehci-pci.c USB: Remove pci-dma-compat wrapper APIs. 2020-07-15 16:48:10 +02:00
ehci-platform.c usb: host: ehci-platform: Add workaround for brcm, xgs-iproc-ehci 2020-09-14 16:45:28 +02:00
ehci-pmcmsp.c USB: host: ehci-pmcmsp: Cleanup usb_hcd_msp_remove() 2020-10-28 12:32:26 +01:00
ehci-ppc-of.c
ehci-ps3.c powerpc/ps3: make system bus's remove and shutdown callbacks return void 2020-12-04 01:01:22 +11:00
ehci-q.c usb: host: Use fallthrough pseudo-keyword 2020-07-10 08:55:18 +02:00
ehci-sched.c usb: host: ehci-sched: add comment about find_tt() not returning error 2020-10-28 12:21:38 +01:00
ehci-sh.c
ehci-spear.c usb/host: ehci-spear: Use pm_ptr() macro 2020-09-04 16:54:45 +02:00
ehci-st.c
ehci-sysfs.c
ehci-tegra.c usb: host: ehci-tegra: Fix error handling in tegra_ehci_probe() 2020-10-28 13:23:07 +01:00
ehci-timer.c
ehci-xilinx-of.c
ehci.h USB: host: Use the correct style for SPDX License Identifier 2020-04-16 14:32:46 +02:00
fhci-dbg.c
fhci-hcd.c
fhci-hub.c
fhci-mem.c
fhci-q.c
fhci-sched.c USB/Thunderbolt patches for 5.9-rc1 2020-08-05 12:13:10 -07:00
fhci-tds.c usb: host: fhci-tds: Remove unused variables 'buf' and 'extra_data' 2020-07-09 17:19:59 +02:00
fhci.h USB: host: Use the correct style for SPDX License Identifier 2020-04-16 14:32:46 +02:00
fotg210-hcd.c usb: fotg210-hcd: remove casting dma_alloc_coherent 2020-12-09 15:25:19 +01:00
fotg210.h
fsl-mph-dr-of.c usb: host: fsl-mph-dr-of: check return of dma_set_mask() 2020-10-28 13:19:31 +01:00
isp116x-hcd.c usb: Fix fall-through warnings for Clang 2020-11-23 17:46:01 +01:00
isp116x.h
isp1362-hcd.c usb: Use fallthrough pseudo-keyword 2020-07-10 08:55:17 +02:00
isp1362.h USB: host: isp1362: delete isp1362_show_regs() 2020-10-28 13:08:22 +01:00
max3421-hcd.c usb: Fix fall-through warnings for Clang 2020-11-23 17:46:01 +01:00
ohci-at91.c usb: hosts: Remove in_interrupt() from comments 2020-10-28 12:32:12 +01:00
ohci-da8xx.c
ohci-dbg.c
ohci-exynos.c usb: host: ohci-exynos: Fix error handling in exynos_ohci_probe() 2020-08-27 09:25:58 +02:00
ohci-hcd.c usb: fix a few cases of -Wfallthrough 2020-11-13 15:20:52 +01:00
ohci-hub.c usb: fix a few cases of -Wfallthrough 2020-11-13 15:20:52 +01:00
ohci-mem.c
ohci-nxp.c
ohci-omap.c Merge 5.10-rc7 into usb-next 2020-12-07 10:20:51 +01:00
ohci-pci.c USB: OHCI: remove obsolete FIXME comment 2020-06-19 08:58:44 +02:00
ohci-platform.c usb/ohci-platform: Fix a warning when hibernating 2020-05-18 18:15:39 +02:00
ohci-ppc-of.c
ohci-ps3.c powerpc/ps3: make system bus's remove and shutdown callbacks return void 2020-12-04 01:01:22 +11:00
ohci-pxa27x.c usb: hosts: Remove in_interrupt() from comments 2020-10-28 12:32:12 +01:00
ohci-q.c USB: OHCI: Use fallthrough pseudo-keyword 2020-07-10 08:55:18 +02:00
ohci-s3c2410.c usb: hosts: Remove in_interrupt() from comments 2020-10-28 12:32:12 +01:00
ohci-sa1111.c
ohci-sm501.c USB: ohci-sm501: Add missed iounmap() in remove 2020-06-18 10:42:53 +02:00
ohci-spear.c
ohci-st.c
ohci-tmio.c USB: OHCI: Use fallthrough pseudo-keyword 2020-07-10 08:55:18 +02:00
ohci.h usb: host: ohci: Mark cc_to_error as __maybe_unused 2020-07-03 10:18:40 +02:00
oxu210hp-hcd.c usb: oxu210hp-hcd: Fix memory leak in oxu_create 2020-12-09 15:25:21 +01:00
pci-quirks.c usb: pci-quirks: convert to readl_poll_timeout_atomic() 2020-09-25 16:30:05 +02:00
pci-quirks.h
r8a66597-hcd.c usb: host: r8a66597-hcd: Remove set, then over-written, but never used variable 'tmp' 2020-07-09 17:19:57 +02:00
r8a66597.h USB: host: Use the correct style for SPDX License Identifier 2020-04-16 14:32:46 +02:00
sl811-hcd.c usb: host: sl811: Switch to use platform_get_mem_or_io() 2020-12-10 16:31:46 +01:00
sl811.h
sl811_cs.c
ssb-hcd.c
u132-hcd.c USB: host: u123-hcd: remove trailing semicolon in macro definition 2020-12-09 15:24:42 +01:00
uhci-debug.c
uhci-grlib.c
uhci-hcd.c
uhci-hcd.h
uhci-hub.c
uhci-pci.c usb: hci: add hc_driver as argument for usb_hcd_pci_probe 2020-05-15 15:44:34 +02:00
uhci-platform.c
uhci-q.c
xhci-dbg.c
xhci-dbgcap.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
xhci-dbgcap.h xhci: dbc: remove tty specific port structure from struct xhci_dbc 2020-07-23 17:05:29 +02:00
xhci-dbgtty.c usb: xhci: convert tasklets to use new tasklet_setup() API 2020-08-18 13:00:01 +02:00
xhci-debugfs.c usb: xhci: add debugfs support for ep with stream 2020-09-20 16:18:00 +02:00
xhci-debugfs.h usb: xhci: add debugfs support for ep with stream 2020-09-20 16:18:00 +02:00
xhci-ext-caps.c
xhci-ext-caps.h USB: host: Use the correct style for SPDX License Identifier 2020-04-16 14:32:46 +02:00
xhci-histb.c xhci: hisilicon: fix refercence leak in xhci_histb_probe 2020-11-13 14:32:43 +01:00
xhci-hub.c xhci: Give USB2 ports time to enter U3 in bus suspend 2020-12-09 14:32:03 +01:00
xhci-mem.c Merge 5.10-rc2 into usb-next 2020-11-02 10:04:07 +01:00
xhci-mtk-sch.c usb: xhci-mtk: fix the failure of bandwidth allocation 2020-07-21 14:05:49 +02:00
xhci-mtk.c usb: xhci-mtk: Fix typo 2020-08-18 12:12:54 +02:00
xhci-mtk.h USB: host: Use the correct style for SPDX License Identifier 2020-04-16 14:32:46 +02:00
xhci-mvebu.c
xhci-mvebu.h USB: host: Use the correct style for SPDX License Identifier 2020-04-16 14:32:46 +02:00
xhci-pci-renesas.c usb: renesas-xhci: remove version check 2020-08-18 11:55:23 +02:00
xhci-pci.c xhci-pci: Allow host runtime PM as default for Intel Maple Ridge xHCI 2020-12-09 14:32:03 +01:00
xhci-pci.h usb: xhci: make symbols static 2020-05-19 14:11:55 +02:00
xhci-plat.c usb: xhci: Set quirk for XHCI_SG_TRB_CACHE_SIZE_QUIRK 2020-12-09 14:32:00 +01:00
xhci-plat.h usb: host: xhci-plat: add .suspend_quirk for struct xhci_plat_priv 2020-09-20 16:18:00 +02:00
xhci-rcar.c usb: xhci-rcar: convert to readl_poll_timeout_atomic() 2020-09-25 16:30:05 +02:00
xhci-rcar.h USB: host: Use the correct style for SPDX License Identifier 2020-04-16 14:32:46 +02:00
xhci-ring.c xhci: make sure TRB is fully written before giving it to the controller 2021-01-15 17:27:31 +01:00
xhci-tegra.c xhci: tegra: Delay for disabling LFPS detector 2021-01-15 17:27:31 +01:00
xhci-trace.c
xhci-trace.h USB: host: Use the correct style for SPDX License Identifier 2020-04-16 14:32:46 +02:00
xhci.c USB: xhci: fix U1/U2 handling for hardware with XHCI_INTEL_HOST quirk set 2020-12-28 15:44:32 +01:00
xhci.h usb: xhci: Use temporary buffer to consolidate SG 2020-12-09 14:32:03 +01:00