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TencentOS-kernel/drivers/usb
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JC Kuo 2faf3e5a70 xhci: tegra: Delay for disabling LFPS detector 
commit da7e0c3c2909a3d9bf8acfe1db3cb213bd7febfb upstream.

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>
 		2021-04-12 12:51:38 +08:00
..
atm Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
c67x00 USB: c67x00: fix use after free in c67x00_giveback_urb 2021-03-16 16:32:07 +08:00
cdns3 usb: cdns3: gadget: suspicious implicit sign extension 2021-03-16 16:40:27 +08:00
chipidea usb: chipidea: ci_hdrc_imx: add missing put_device() call in usbmisc_get_init_data() 2021-04-12 12:51:11 +08:00
class USB: usblp: fix DMA to stack 2021-04-12 12:51:12 +08:00
common Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
core USB: add RESET_RESUME quirk for Snapscan 1212 2021-03-16 16:42:19 +08:00
dwc2 usb: dwc2: Fix INTR OUT transfers in DDMA mode. 2021-03-16 16:38:45 +08:00
dwc3 usb: dwc3: ulpi: Use VStsDone to detect PHY regs access completion 2021-04-12 12:51:11 +08:00
early USB: early: Handle AMD's spec-compliant identifiers, too 2021-03-16 16:26:55 +08:00
gadget usb: bdc: Make bdc pci driver depend on BROKEN 2021-04-12 12:51:38 +08:00
host xhci: tegra: Delay for disabling LFPS detector 2021-04-12 12:51:38 +08:00
image Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
isp1760 Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
misc USB: yurex: fix control-URB timeout handling 2021-04-12 12:51:12 +08:00
mon Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
mtu3 usb: mtu3: fix memory corruption in mtu3_debugfs_regset() 2021-03-16 16:42:31 +08:00
musb usb: musb: Fix runtime PM imbalance on error 2021-03-16 16:28:52 +08:00
phy usb: phy: twl6030-usb: Fix a resource leak in an error handling path in 'twl6030_usb_probe()' 2021-03-16 16:28:29 +08:00
renesas_usbhs usb: renesas_usbhs: getting residue from callback_result 2021-03-16 16:31:01 +08:00
roles Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
serial USB: serial: keyspan_pda: remove unused variable 2021-04-12 12:51:13 +08:00
storage usb: uas: Add PNY USB Portable SSD to unusual_uas 2021-04-12 12:51:11 +08:00
typec usb: typec: Fix copy paste error for NVIDIA alt-mode description 2021-04-12 12:51:25 +08:00
usbip usb: usbip: vhci_hcd: protect shift size 2021-04-12 12:51:11 +08:00
Kconfig Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
Makefile Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
usb-skeleton.c Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00