linux/drivers/pci/hotplug
Manivannan Sadhasivam 6e2dff272c PCI: pciehp: Add Qualcomm quirk for Command Completed erratum
[ Upstream commit 9f72d4757cbe4d1ed669192f6d23817c9e437c4b ]

The Qualcomm PCI bridge device (Device ID 0x0110) found in chipsets such as
SM8450 does not set the Command Completed bit unless writes to the Slot
Command register change "Control" bits.

This results in timeouts like below:

  pcieport 0001:00:00.0: pciehp: Timeout on hotplug command 0x03c0 (issued 2020 msec ago)

Add the device to the Command Completed quirk to mark commands "completed"
immediately unless they change the "Control" bits.

Link: https://lore.kernel.org/r/20220210145003.135907-1-manivannan.sadhasivam@linaro.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-15 14:18:33 +02:00
..
acpi_pcihp.c
acpiphp_core.c
acpiphp_glue.c ACPI / hotplug / PCI: Fix reference count leak in enable_slot() 2021-05-22 11:38:28 +02:00
acpiphp_ibm.c
acpiphp.h
cpci_hotplug_core.c
cpci_hotplug_pci.c
cpci_hotplug.h
cpcihp_generic.c
cpcihp_zt5550.c
cpcihp_zt5550.h
cpqphp_core.c
cpqphp_ctrl.c
cpqphp_nvram.c
cpqphp_nvram.h
cpqphp_pci.c
cpqphp_sysfs.c
cpqphp.h
ibmphp_core.c
ibmphp_ebda.c PCI: ibmphp: Fix double unmap of io_mem 2021-09-22 12:26:44 +02:00
ibmphp_hpc.c
ibmphp_pci.c
ibmphp_res.c
ibmphp.h
Kconfig
Makefile
pci_hotplug_core.c
pciehp_core.c
pciehp_ctrl.c
pciehp_hpc.c PCI: pciehp: Add Qualcomm quirk for Command Completed erratum 2022-04-15 14:18:33 +02:00
pciehp_pci.c
pciehp.h
pnv_php.c
rpadlpar_core.c
rpadlpar_sysfs.c PCI: rpadlpar: Fix potential drc_name corruption in store functions 2021-03-24 11:26:43 +01:00
rpadlpar.h
rpaphp_core.c
rpaphp_pci.c
rpaphp_slot.c
rpaphp.h
s390_pci_hpc.c
shpchp_core.c
shpchp_ctrl.c
shpchp_hpc.c
shpchp_pci.c
shpchp_sysfs.c
shpchp.h
TODO PCI: ibmphp: Fix double unmap of io_mem 2021-09-22 12:26:44 +02:00