AuxXxilium/linux_dsm_epyc7002
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6a6595318a
linux_dsm_epyc7002/drivers
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Douglas Anderson 6a6595318a usb: dwc2: host: Fix missing device insertions 
If you've got your interrupt signals bouncing a bit as you insert your
USB device, you might end up in a state when the device is connected but
the driver doesn't know it.

Specifically, the observed order is:
 1. hardware sees connect
 2. hardware sees disconnect
 3. hardware sees connect
 4. dwc2_port_intr() - clears connect interrupt
 5. dwc2_handle_common_intr() - calls dwc2_hcd_disconnect()

Now you'll be stuck with the cable plugged in and no further interrupts
coming in but the driver will think we're disconnected.

We'll fix this by checking for the missing connect interrupt and
re-connecting after the disconnect is posted.  We don't skip the
disconnect because if there is a transitory disconnect we really want to
de-enumerate and re-enumerate.

Notes:
1. As part of this change we add a "force" parameter to
   dwc2_hcd_disconnect() so that when we're unloading the module we
   avoid the new behavior.  The need for this was pointed out by John
   Youn.
2. The bit of code needed at the end of dwc2_hcd_disconnect() is
   exactly the same bit of code from dwc2_port_intr().  To avoid
   duplication, we refactor that code out into a new function
   dwc2_hcd_connect().

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: John Youn <johnyoun@synopsys.com>
Tested-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15 09:12:41 -06:00
..
accessibility
acpi Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm 2015-12-04 11:30:45 -08:00
amba
android
ata ata/sata_fsl.c: add ATA_FLAG_NO_LOG_PAGE to blacklist the controller for log page reads 2015-12-07 10:25:57 -05:00
atm
auxdisplay
base drivers/base/memory.c: prohibit offlining of memory blocks with missing sections 2015-12-12 10:15:34 -08:00
bcma
block Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2015-12-12 10:24:00 -08:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-11-10 18:11:41 -08:00
bus Merge branch 'x15-audio-fixes' into omap-for-v4.4/fixes 2015-11-12 09:58:21 -08:00
cdrom
char ipmi: move timer init to before irq is setup 2015-12-09 13:13:06 -06:00
clk ARM: SoC fixes for 4.4-rc 2015-12-12 16:43:44 -08:00
clocksource clocksource: Mmio: remove artificial 32bit limitation 2015-12-10 19:37:18 +01:00
connector mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd 2015-11-06 17:50:42 -08:00
cpufreq ARM: SoC fixes for 4.4-rc 2015-12-12 16:43:44 -08:00
cpuidle cpuidle: mvebu: disable the bind/unbind attributes and use builtin_platform_driver 2015-10-23 12:40:48 +02:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2015-12-05 10:46:44 -08:00
dca
devfreq
dio
dma dmaengine: at_hdmac: use %pad format string for dma_addr_t 2015-11-16 09:21:05 +05:30
dma-buf dma-buf/fence: add fence_wait_any_timeout function v2 2015-10-30 01:16:16 -04:00
edac asm-generic cleanups 2015-11-06 14:22:15 -08:00
eisa
extcon Merge branches 'ib-extcon-mfd-4.4', 'ib-mfd-i2c-v4.4', 'ib-mfd-power-4.4', 'ib-mfd-regmap-4.4' and 'ib-mfd-regulator-4.4' into ibs-for-mfd-merged 2015-10-26 14:48:22 +00:00
firewire IEEE 1394 subsystem patch: 2015-11-11 10:21:34 -08:00
firmware ARM: SoC driver updates for v4.4 2015-11-10 15:00:03 -08:00
fmc
fpga fpga manager: Fix firmware resource leak on error 2015-11-24 15:25:46 -08:00
gpio gpio: omap: drop omap1 mpuio specific irq_mask/unmask callbacks 2015-11-30 13:50:21 +01:00
gpu vgaarb: fix signal handling in vga_get() 2015-12-11 14:04:44 +10:00
hid USB fixes for 4.4-rc5 2015-12-13 11:58:18 -08:00
hsi hsi: controllers:remove redundant code 2015-10-30 16:10:40 +01:00
hv drivers/hv: share Hyper-V SynIC constants with userspace 2015-11-04 16:24:33 +01:00
hwmon hwmon: (scpi) skip unsupported sensors properly 2015-11-16 09:59:50 -08:00
hwspinlock
hwtracing Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-11-13 20:04:17 -08:00
i2c i2c: i801: add Intel Lewisburg device IDs 2015-11-20 16:22:21 +01:00
ide mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM 2015-11-06 17:50:42 -08:00
idle
iio iio: adc: spmi-vadc: add missing of_node_put 2015-11-21 18:24:44 +00:00
infiniband IB/mlx5: Postpone remove_keys under knowledge of coming preemption 2015-12-08 16:55:31 -05:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2015-11-13 21:41:14 -08:00
iommu s390/pci_dma: handle dma table failures 2015-11-09 09:10:49 +01:00
ipack
irqchip irqchip/versatile-fpga: Fix PCI IRQ mapping on Versatile PB 2015-12-01 22:50:16 +01:00
isdn isdn: Partially revert debug format string usage clean up 2015-11-25 11:49:58 -05:00
leds spi: Updates for v4.4 2015-11-05 13:15:12 -08:00
lguest
lightnvm lightnvm: do not compile in debugging by default 2015-12-07 09:14:20 -07:00
macintosh
mailbox mailbox: mailbox-test: avoid reading iomem twice 2015-11-04 14:03:04 +05:30
mcb mcb: Destroy IDA on module unload 2015-10-29 09:02:16 +09:00
md dm btree: fix bufio buffer leaks in dm_btree_del() error path 2015-12-10 10:30:18 -05:00
media various: fix pci_set_dma_mask return value checking 2015-11-20 16:17:32 -08:00
memory ARM: SoC driver updates for v4.4 2015-11-10 15:00:03 -08:00
memstick
message SCSI queue for 4.4. 2015-11-12 07:06:18 -05:00
mfd asm-generic cleanups 2015-11-06 14:22:15 -08:00
misc cxl: Set endianess of kernel contexts 2015-12-08 16:57:01 +11:00
mmc mmc: remove bondage between REQ_META and reliable write 2015-11-09 14:04:52 +01:00
mtd mtd: nand: fix shutdown/reboot for multi-chip systems 2015-11-16 10:51:39 -08:00
net Series of 4.4-rc fixes 2015-12-10 14:42:22 -08:00
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-11-10 18:11:41 -08:00
ntb NTB: fix 32-bit compiler warning 2015-11-08 16:24:43 -05:00
nubus
nvdimm libnvdimm, pmem: fix size trim in pmem_direct_access() 2015-11-12 09:55:23 -08:00
nvme lightnvm: replace req queue with nvmdev for lld 2015-12-07 09:14:19 -07:00
nvmem
of of/irq: Export of_irq_find_parent again 2015-12-09 09:08:36 -06:00
oprofile
parisc parisc iommu: fix panic due to trying to allocate too large region 2015-12-12 16:07:25 +01:00
parport
pci PCI updates for v4.4: 2015-12-09 09:26:06 -08:00
pcmcia
perf arm64 updates for 4.4: 2015-11-04 14:47:13 -08:00
phy phy: qcom-ufs: fix build error when the component is built as a module 2015-11-09 17:44:24 -05:00
pinctrl pinctrl: sh-pfc: sh7734: Add missing cfg macro parameter to fix build 2015-12-01 11:13:04 +01:00
platform platform/chrome: Branch for v4.4 2015-11-13 21:53:18 -08:00
pnp
power - New Device Support 2015-11-06 10:23:50 -08:00
powercap
pps
ps3
ptp
pwm pwm: Changes for v4.4-rc1 2015-11-11 09:16:10 -08:00
rapidio
ras
regulator spi: Updates for v4.4 2015-11-05 13:15:12 -08:00
remoteproc remoteproc: fix memory leak of remoteproc ida cache layers 2015-11-26 17:44:28 +02:00
reset
rpmsg
rtc rtc: ds1307: fix alarm reading at probe time 2015-11-26 18:11:26 +01:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2015-11-18 08:59:29 -08:00
sbus
scsi SCSI fixes on 20151205 2015-12-06 08:02:25 -08:00
sfi
sh drivers: sh: Get rid of CONFIG_ARCH_SHMOBILE_MULTI 2015-11-17 02:12:46 +09:00
sn
soc Few Keystone fixes for 4.4-rcx 2015-11-25 23:48:12 +01:00
spi Merge remote-tracking branches 'spi/fix/bcm63xx', 'spi/fix/doc', 'spi/fix/mediatek' and 'spi/fix/pl022' into spi-linus 2015-11-30 12:26:47 +00:00
spmi char/misc drivers for 4.4-rc1 2015-11-04 22:15:15 -08:00
ssb ssb: add Kconfig entry for compiling SoC related code 2015-10-28 21:05:21 +02:00
staging Staging driver fixes for 4.4-rc5 2015-12-13 12:24:39 -08:00
target target/stat: print full t10_wwn.model buffer 2015-11-28 21:23:13 -08:00
tc
thermal imx: thermal: use CPU temperature grade info for thresholds 2015-11-23 16:38:40 -08:00
thunderbolt
tty serial: export fsl8250_handle_irq 2015-11-20 16:19:54 -08:00
uio
usb usb: dwc2: host: Fix missing device insertions 2015-12-15 09:12:41 -06:00
uwb driver core update for 4.4-rc1 2015-11-04 21:50:37 -08:00
vfio Revert: "vfio: Include No-IOMMU mode" 2015-12-04 08:38:42 -07:00
vhost vhost: replace % with & on data path 2015-12-07 17:28:10 +02:00
video fbdev changes for 4.4 2015-11-10 10:00:09 -08:00
virt
virtio virtio_ring: shadow available ring flags & index 2015-12-07 17:28:11 +02:00
vlynq
vme char/misc drivers for 4.4-rc1 2015-11-04 22:15:15 -08:00
w1 power supply and reset changes for the v4.4 series 2015-11-05 12:28:15 -08:00
watchdog watchdog: mtk_wdt: Use MODE_KEY when stopping the watchdog 2015-11-23 09:00:09 +01:00
xen xen: bug fixes for 4.4-rc2 2015-11-26 11:42:25 -08:00
zorro
Kconfig char/misc drivers for 4.4-rc1 2015-11-04 22:15:15 -08:00
Makefile null_blk: register as a LightNVM device 2015-11-16 15:22:28 -07:00