android/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
android_kernel_xiaomi_sm8450/drivers/pci
History
Bjorn Helgaas 9088614323 PCI: Avoid broken MSI on SB600 USB devices 
[ Upstream commit 63cd736f449445edcd7f0bcc7d84453e9beec0aa ]

Some ATI SB600 USB adapters advertise MSI, but if INTx is disabled by
setting PCI_COMMAND_INTX_DISABLE, MSI doesn't work either.  The PCI/PCIe
specs do not require software to set PCI_COMMAND_INTX_DISABLE when enabling
MSI, but Linux has done that for many years.

Mick reported that 306c54d0edb6 ("usb: hcd: Try MSI interrupts on PCI
devices") broke these devices.  Prior to 306c54d0edb6, they used INTx.
Starting with 306c54d0edb6, they use MSI, and and the fact that Linux sets
PCI_COMMAND_INTX_DISABLE means both INTx and MSI are disabled on these
devices.

Avoid this SB600 defect by disabling MSI so we use INTx as before.

Fixes: 306c54d0edb6 ("usb: hcd: Try MSI interrupts on PCI devices")
Link: https://lore.kernel.org/r/20220321183446.1108325-1-helgaas@kernel.org
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215690
Link: https://lore.kernel.org/all/PxIByDyBRcsbpcmVhGSNDFAoUcMmb78ctXCkw6fbpx25TGlCHvA6SJjjFkNr1FfQZMntYPTNyvEnblxzAZ8a6jP9ddLpKeCN6Chi_2FuexU=@protonmail.com/
Link: https://lore.kernel.org/r/20220314101448.90074-1-andriy.shevchenko@linux.intel.com
BugLink: https://lore.kernel.org/all/20200702143045.23429-1-andriy.shevchenko@linux.intel.com/
Reported-by: Mick Lorain <micklorain@protonmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:40:23 +02:00
..
controller
PCI: aardvark: Fix reading PCI_EXP_RTSTA_PME bit on emulated bridge
2022-04-08 14:40:15 +02:00
endpoint
PCI: endpoint: Fix missing destroy_workqueue()
2021-05-19 10:13:02 +02:00
hotplug
PCI: pciehp: Clear cmd_busy bit in polling mode
2022-04-08 14:39:58 +02:00
pcie
PCI/portdrv: Enable Bandwidth Notification only if port supports it
2021-09-18 13:40:10 +02:00
switch
PCI: switchtec: Add missing __iomem tag to fix sparse warnings
2020-07-31 11:23:45 -05:00
access.c
PCI: Reduce warnings on possible RW1C corruption
2022-04-08 14:40:19 +02:00
ats.c
Merge branch 'pci/doc'
2020-08-05 18:24:22 -05:00
bus.c
PCI: Add device even if driver attach failed
2020-07-07 17:33:41 -05:00
ecam.c
PCI/ACPI: Add Ampere Altra SOC MCFG quirk
2020-09-17 12:27:43 -05:00
host-bridge.c
…
iov.c
PCI/IOV: Mark VFs as not implementing PCI_COMMAND_MEMORY
2020-09-21 14:42:11 -06:00
irq.c
PCI: Remove unused pci_lost_interrupt()
2020-07-29 14:25:18 -05:00
Kconfig
pci-v5.10-changes
2020-10-22 12:41:00 -07:00
Makefile
PCI: Allow building PCIe things without PCIEPORTBUS
2019-11-21 07:52:33 -06:00
mmap.c
PCI: Fix typos and whitespace errors
2019-07-09 07:24:53 -05:00
msi.c
PCI/MSI: Fix pci_irq_vector()/pci_irq_get_affinity()
2022-01-27 10:54:06 +01:00
of.c
PCI: of: Don't fail devm_pci_alloc_host_bridge() on missing 'ranges'
2021-09-22 12:28:02 +02:00
p2pdma.c
PCI/P2PDMA: Avoid pci_get_slot(), which may sleep
2021-07-20 16:05:47 +02:00
pci-acpi.c
PM: ACPI: PCI: Drop acpi_pm_set_bridge_wakeup()
2020-12-30 11:54:05 +01:00
pci-bridge-emul.c
PCI: pci-bridge-emul: Set PCI_STATUS_CAP_LIST for PCIe device
2022-01-27 10:54:26 +01:00
pci-bridge-emul.h
PCI: pci-bridge-emul: Add PCIe Root Capabilities Register
2021-09-26 14:08:55 +02:00
pci-driver.c
pci-v5.10-changes
2020-10-22 12:41:00 -07:00
pci-label.c
PCI/sysfs: Fix dsm_label_utf16s_to_utf8s() buffer overrun
2021-07-20 16:05:50 +02:00
pci-mid.c
PCI: intel-mid: Convert to new X86 CPU match macros
2020-03-24 21:35:06 +01:00
pci-pf-stub.c
PCI/IOV: Simplify pci-pf-stub with module_pci_driver()
2020-09-17 12:40:20 -05:00
pci-stub.c
…
pci-sysfs.c
Merge branch 'pci/misc'
2020-10-21 09:58:36 -05:00
pci.c
PCI: Fix pci_dev_str_match_path() alloc while atomic bug
2021-09-22 12:28:03 +02:00
pci.h
PCI: pciehp: Ignore Link Down/Up caused by DPC
2021-07-20 16:05:47 +02:00
probe.c
PCI: Release OF node in pci_scan_device()'s error path
2021-05-19 10:13:01 +02:00
proc.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
quirks.c
PCI: Avoid broken MSI on SB600 USB devices
2022-04-08 14:40:23 +02:00
remove.c
PCI: Fix pci_host_bridge struct device release/free handling
2020-05-14 16:36:35 -05:00
rom.c
PCI: Use ioremap(), not phys_to_virt() for platform ROM
2020-03-30 09:52:23 -05:00
search.c
Merge branch 'pci/host-vmd'
2020-01-29 17:00:02 -06:00
setup-bus.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
setup-irq.c
…
setup-res.c
PCI: Decline to resize resources if boot config must be preserved
2021-03-04 11:37:18 +01:00
slot.c
PCI: Fix pci_slot_release() NULL pointer dereference
2020-12-30 11:54:28 +01:00
syscall.c
PCI: Return ~0 data on pciconfig_read() CAP_SYS_ADMIN failure
2021-09-18 13:40:10 +02:00
vc.c
PCI: Fix kerneldoc warnings
2020-08-05 18:23:14 -05:00
vpd.c
PCI: Allow VPD access for QLogic ISP2722
2021-05-14 09:49:57 +02:00
xen-pcifront.c
dma-mapping: split <linux/dma-mapping.h>
2020-10-06 07:07:03 +02:00