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2017-09-07Merge branch 'pci/resource' into nextBjorn Helgaas
* pci/resource: microblaze/PCI: Remove pcibios_setup_bus_{self/devices} dead code ARC: Remove empty kernel/pcibios.c PCI: Add a generic weak pcibios_align_resource() PCI: Add a generic weak pcibios_fixup_bus()
2017-09-07Merge branch 'pci/pm' into nextBjorn Helgaas
* pci/pm: PCI/PM: Expand description of pci_set_power_state()
2017-09-07Merge branch 'pci/msi' into nextBjorn Helgaas
* pci/msi: PCI/MSI: Assume MSIs use real Requester ID, not an alias
2017-09-07Merge branch 'pci/misc' into nextBjorn Helgaas
* pci/misc: PCI: Fix PCIe capability sizes PCI: Convert to using %pOF instead of full_name() PCI: Constify endpoint pci_epf_type device_type PCI: Constify bin_attribute structures PCI: Constify hotplug pci_device_id structures PCI: Constify hotplug attribute_group structures PCI: Constify label attribute_group structures PCI: Constify sysfs attribute_group structures
2017-09-07Merge branch 'pci/irq-fixups' into nextBjorn Helgaas
* pci/irq-fixups: PCI: Inline and remove pcibios_update_irq() PCI: Remove unused pci_fixup_irqs() function sparc/PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks unicore32/PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks tile/PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks MIPS: PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks m68k/PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks alpha/PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks sh/PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks sh/PCI: Remove __init optimisations from IRQ mapping functions/data MIPS: PCI: Fix pcibios_scan_bus() NULL check code path
2017-09-07Merge branch 'pci/hotplug' into nextBjorn Helgaas
* pci/hotplug: PCI: pciehp: Report power fault only once until we clear it PCI: shpchp: Enable bridge bus mastering if MSI is enabled
2017-09-07Merge branch 'pci/enumeration' into nextBjorn Helgaas
* pci/enumeration: PCI: Warn periodically while waiting for non-CRS ("device ready") status PCI: Wait up to 60 seconds for device to become ready after FLR PCI: Factor out pci_bus_wait_crs() PCI: Add pci_bus_crs_vendor_id() to detect CRS response data PCI: Always check for non-CRS response before timeout PCI: Avoid race while enabling upstream bridges PCI: Mark Broadcom HT2100 Root Port Extended Tags as broken
2017-09-07Merge branch 'pci/dpc' into nextBjorn Helgaas
* pci/dpc: PCI/DPC: Add local struct device pointers PCI/DPC: Add eDPC support
2017-09-07Merge branch 'pci/aer' into nextBjorn Helgaas
* pci/aer: PCI/AER: Reformat AER register definitions PCI/portdrv: Move error handler methods to struct pcie_port_service_driver
2017-09-07Merge branch 'pci/endpoint' into nextBjorn Helgaas
* pci/endpoint: tools: PCI: Add a missing option help line misc: pci_endpoint_test: Enable/Disable MSI using module param misc: pci_endpoint_test: Avoid using hard-coded BAR sizes misc: pci_endpoint_test: Add support to not enable MSI interrupts misc: pci_endpoint_test: Add support to provide aligned buffer addresses misc: pci_endpoint_test: Add support for PCI_ENDPOINT_TEST regs to be mapped to any BAR PCI: designware-ep: Do not disable BARs during initialization PCI: dra7xx: Reset all BARs during initialization PCI: dwc: designware: Provide page_size to pci_epc_mem PCI: endpoint: Remove the ->remove() callback PCI: endpoint: Add support to poll early for host commands PCI: endpoint: Add support to use _any_ BAR to map PCI_ENDPOINT_TEST regs PCI: endpoint: Do not reset *command* inadvertently PCI: endpoint: Add "volatile" to pci_epf_test_reg PCI: endpoint: Add support for configurable page size PCI: endpoint: Make ->remove() callback optional PCI: endpoint: Add an API to get matching "pci_epf_device_id" PCI: endpoint: Use of_dma_configure() to set initial DMA mask
2017-09-07Merge branch 'pci/host-xilinx' into nextBjorn Helgaas
* pci/host-xilinx: PCI: xilinx-nwl: Fix platform_get_irq() error handling PCI: xilinx: Allow build on MIPS platforms PCI: xilinx: Don't enable config completion interrupts PCI: xilinx: Unify INTx & MSI interrupt decode PCI: xilinx-nwl: Translate INTx range to hwirqs 0-3 PCI: xilinx: Translate INTx range to hwirqs 0-3
2017-09-07Merge branch 'pci/host-xgene' into nextBjorn Helgaas
* pci/host-xgene: PCI: xgene: Clean up whitespace PCI: xgene: Define XGENE_PCI_EXP_CAP and use generic PCI_EXP_RTCTL offset PCI: xgene: Fix platform_get_irq() error handling
2017-09-07Merge branch 'pci/host-vmd' into nextBjorn Helgaas
* pci/host-vmd: iommu/vt-d: Prevent VMD child devices from being remapping targets x86/PCI: Use is_vmd() rather than relying on the domain number x86/PCI: Move VMD quirk to x86 fixups MAINTAINERS: Add Jonathan Derrick as VMD maintainer PCI: vmd: Remove IRQ affinity so we can allocate more IRQs PCI: vmd: Free up IRQs on suspend path PCI: vmd: Assign vector zero to all bridges PCI: vmd: Reserve IRQ pre-vector for better affinity
2017-09-07Merge branch 'pci/host-tegra' into nextBjorn Helgaas
* pci/host-tegra: PCI: tegra: Explicitly request exclusive reset control
2017-09-07Merge branch 'pci/host-spear13xx' into nextBjorn Helgaas
* pci/host-spear13xx: PCI: spear13xx: Fix platform_get_irq() error handling
2017-09-07Merge branch 'pci/host-rockchip' into nextBjorn Helgaas
* pci/host-rockchip: PCI: rockchip: Fix platform_get_irq() error handling PCI: rockchip: Umap IO space if probe fails PCI: rockchip: Remove IRQ domain if probe fails PCI: rockchip: Disable vpcie0v9 if resume_noirq fails PCI: rockchip: Clean up PHY if driver probe or resume fails PCI: rockchip: Factor out rockchip_pcie_deinit_phys() PCI: rockchip: Factor out rockchip_pcie_disable_clocks() PCI: rockchip: Factor out rockchip_pcie_enable_clocks() PCI: rockchip: Factor out rockchip_pcie_setup_irq() PCI: rockchip: Use gpiod_set_value_cansleep() to allow reset via expanders PCI: rockchip: Use PCI_NUM_INTX PCI: rockchip: Explicitly request exclusive reset control dt-bindings: phy-rockchip-pcie: Convert to per-lane PHY model dt-bindings: PCI: rockchip: Convert to per-lane PHY model arm64: dts: rockchip: convert PCIe to use per-lane PHYs for rk3339 PCI: rockchip: Idle inactive PHY(s) phy: rockchip-pcie: Reconstruct driver to support per-lane PHYs PCI: rockchip: Add per-lane PHY support PCI: rockchip: Factor out rockchip_pcie_get_phys() PCI: rockchip: Control optional 12v power supply dt-bindings: PCI: rockchip: Add vpcie12v-supply for Rockchip PCIe controller
2017-09-07Merge branch 'pci/host-rcar' into nextBjorn Helgaas
* pci/host-rcar: PCI: rcar: Add device tree support for r8a7743/5 PCI: rcar: Fix memory leak when no PCIe card is inserted PCI: rcar: Fix error exit path
2017-09-07Merge branch 'pci/host-qcom' into nextBjorn Helgaas
* pci/host-qcom: PCI: qcom: Add support for IPQ8074 PCIe controller dt-bindings: PCI: qcom: Add support for IPQ8074 PCI: qcom: Use block IP version for operations PCI: qcom: Explicitly request exclusive reset control PCI: qcom: Use gpiod_set_value_cansleep() to allow reset via expanders
2017-09-07Merge branch 'pci/host-mvebu' into nextBjorn Helgaas
* pci/host-mvebu: PCI: mvebu: Remove unneeded gpiod NULL check
2017-09-07Merge branch 'pci/host-mediatek' into nextBjorn Helgaas
* pci/host-mediatek: PCI: mediatek: Use PCI_NUM_INTX PCI: mediatek: Add MSI support for MT2712 and MT7622 PCI: mediatek: Use bus->sysdata to get host private data dt-bindings: PCI: Add support for MT2712 and MT7622 PCI: mediatek: Add controller support for MT2712 and MT7622 dt-bindings: PCI: Cleanup MediaTek binding text dt-bindings: PCI: Rename MediaTek binding PCI: mediatek: Switch to use platform_get_resource_byname() PCI: mediatek: Add a structure to abstract the controller generations PCI: mediatek: Rename port->index and mtk_pcie_parse_ports() PCI: mediatek: Use readl_poll_timeout() to wait for Gen2 training PCI: mediatek: Explicitly request exclusive reset control
2017-09-07Merge branch 'pci/host-layerscape' into nextBjorn Helgaas
* pci/host-layerscape: PCI: layerscape: Add support for ls1088a PCI: layerscape: Add support for ls2088a PCI: artpec6: Stop enabling writes to DBI read-only registers PCI: layerscape: Remove unnecessary class code fixup PCI: dwc: Enable write permission for Class Code, Interrupt Pin updates PCI: dwc: Add accessors for write permission of DBI read-only registers PCI: layerscape: Disable outbound windows configured by bootloader PCI: layerscape: Refactor ls1021_pcie_host_init() PCI: layerscape: Move generic init functions earlier in file PCI: layerscape: Add class code and multifunction fixups for ls1021a PCI: layerscape: Move STRFMR1 access out from the DBI write-enable bracket PCI: layerscape: Call dw_pcie_setup_rc() from ls_pcie_host_init()
2017-09-07Merge branch 'pci/host-kirin' into nextBjorn Helgaas
* pci/host-kirin: PCI: kirin: Constify dw_pcie_host_ops structure
2017-09-07Merge branch 'pci/host-keystone' into nextBjorn Helgaas
* pci/host-keystone: PCI: keystone: Use PCI_NUM_INTX PCI: keystone: Remove duplicate MAX_*_IRQS defs PCI: keystone-dw: Remove unused ks_pcie, pci variables
2017-09-07Merge branch 'pci/host-iproc' into nextBjorn Helgaas
* pci/host-iproc: PCI: iproc: Clean up whitespace PCI: iproc: Rename PCI_EXP_CAP to IPROC_PCI_EXP_CAP PCI: iproc: Add 500ms delay during device shutdown PCI: iproc: Work around Stingray CRS defects PCI: iproc: Factor out memory-mapped config access address calculation PCI: iproc: Remove unused struct iproc_pcie *pcie
2017-09-07Merge branch 'pci/host-imx6' into nextBjorn Helgaas
* pci/host-imx6: PCI: imx6: Explicitly request exclusive reset control
2017-09-07Merge branch 'pci/host-hv' into nextBjorn Helgaas
* pci/host-hv: PCI: hv: Do not sleep in compose_msi_msg()
2017-09-07Merge branch 'pci/host-hisi' into nextBjorn Helgaas
* pci/host-hisi: PCI: hisi: Constify dw_pcie_host_ops structure PCI: hisi: Remove unused variable driver
2017-09-07Merge branch 'pci/host-faraday' into nextBjorn Helgaas
* pci/host-faraday: PCI: faraday: Use PCI_NUM_INTX PCI: faraday: Fix of_irq_get() error check
2017-09-07Merge branch 'pci/host-exynos' into nextBjorn Helgaas
* pci/host-exynos: PCI: exynos: Fix platform_get_irq() error handling
2017-09-07Merge branch 'pci/host-dra7xx' into nextBjorn Helgaas
* pci/host-dra7xx: PCI: dra7xx: Fix platform_get_irq() error handling PCI: dra7xx: Propagate platform_get_irq() errors in dra7xx_pcie_probe() PCI: dra7xx: Use PCI_NUM_INTX
2017-09-07Merge branch 'pci/host-designware' into nextBjorn Helgaas
* pci/host-designware: PCI: dwc: Clear MSI interrupt status after it is handled, not before PCI: qcom: Allow ->post_init() to fail PCI: qcom: Don't unroll init if ->init() fails PCI: dwc: designware: Handle ->host_init() failures PCI: dwc: designware: Test PCIE_ATU_ENABLE bit specifically PCI: dwc: designware: Make dw_pcie_prog_*_atu_unroll() static
2017-09-07Merge branch 'pci/host-artpec6' into nextBjorn Helgaas
* pci/host-artpec6: PCI: artpec6: Fix platform_get_irq() error handling
2017-09-07Merge branch 'pci/host-armada' into nextBjorn Helgaas
* pci/host-armada: PCI: armada8k: Fix platform_get_irq() error handling PCI: armada8k: Check the return value from clk_prepare_enable()
2017-09-07Merge branch 'pci/host-altera' into nextBjorn Helgaas
* pci/host-altera: PCI: altera: Fix platform_get_irq() error handling PCI: altera: Use size=4 IRQ domain for legacy INTx PCI: altera: Remove unused num_of_vectors variable
2017-09-07Merge branch 'x86-platform-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 platform updates from Ingo Molnar: "The main changes include various Hyper-V optimizations such as faster hypercalls and faster/better TLB flushes - and there's also some Intel-MID cleanups" * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tracing/hyper-v: Trace hyperv_mmu_flush_tlb_others() x86/hyper-v: Support extended CPU ranges for TLB flush hypercalls x86/platform/intel-mid: Make several arrays static, to make code smaller MAINTAINERS: Add missed file for Hyper-V x86/hyper-v: Use hypercall for remote TLB flush hyper-v: Globalize vp_index x86/hyper-v: Implement rep hypercalls hyper-v: Use fast hypercall for HVCALL_SIGNAL_EVENT x86/hyper-v: Introduce fast hypercall implementation x86/hyper-v: Make hv_do_hypercall() inline x86/hyper-v: Include hyperv/ only when CONFIG_HYPERV is set x86/platform/intel-mid: Make 'bt_sfi_data' const x86/platform/intel-mid: Make IRQ allocation a bit more flexible x86/platform/intel-mid: Group timers callbacks together
2017-09-07PCI: xgene: Clean up whitespaceBjorn Helgaas
Use tabs (not spaces) for indentation. No functional change intended. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-09-07PCI: xgene: Define XGENE_PCI_EXP_CAP and use generic PCI_EXP_RTCTL offsetBjorn Helgaas
Apparently the PCIe capability is at address 0x40 in config space of X-Gene v1 Root Ports. Add a definition of that and use the generic PCI_EXP_RTCTL offset into the capability. No functional change intended. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-09-07PCI: xgene: Fix platform_get_irq() error handlingFabio Estevam
When platform_get_irq() fails we should propagate the real error value instead of always returning -EINVAL. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Duc Dang <dhdang@apm.com>
2017-09-05Merge tag 'acpi-4.14-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI updates from Rafael Wysocki: "These include a usual ACPICA code update (this time to upstream revision 20170728), a fix for a boot crash on some systems with Thunderbolt devices connected at boot time, a rework of the handling of PCI bridges when setting up device wakeup, new support for Apple device properties, support for DMA configurations reported via ACPI on ARM64, APEI-related updates, ACPI EC driver updates and assorted minor modifications in several places. Specifics: - Update the ACPICA code in the kernel to upstream revision 20170728 including: * Alias operator handling update (Bob Moore). * Deferred resolution of reference package elements (Bob Moore). * Support for the _DMA method in walk resources (Bob Moore). * Tables handling update and support for deferred table verification (Lv Zheng). * Update of SMMU models for IORT (Robin Murphy). * Compiler and disassembler updates (Alex James, Erik Schmauss, Ganapatrao Kulkarni, James Morse). * Tools updates (Erik Schmauss, Lv Zheng). * Assorted minor fixes and cleanups (Bob Moore, Kees Cook, Lv Zheng, Shao Ming). - Rework the initialization of non-wakeup GPEs with method handlers in order to address a boot crash on some systems with Thunderbolt devices connected at boot time where we miss an early hotplug event due to a delay in GPE enabling (Rafael Wysocki). - Rework the handling of PCI bridges when setting up ACPI-based device wakeup in order to avoid disabling wakeup for bridges prematurely (Rafael Wysocki). - Consolidate Apple DMI checks throughout the tree, add support for Apple device properties to the device properties framework and use these properties for the handling of I2C and SPI devices on Apple systems (Lukas Wunner). - Add support for _DMA to the ACPI-based device properties lookup code and make it possible to use the information from there to configure DMA regions on ARM64 systems (Lorenzo Pieralisi). - Fix several issues in the APEI code, add support for exporting the BERT error region over sysfs and update APEI MAINTAINERS entry with reviewers information (Borislav Petkov, Dongjiu Geng, Loc Ho, Punit Agrawal, Tony Luck, Yazen Ghannam). - Fix a potential initialization ordering issue in the ACPI EC driver and clean it up somewhat (Lv Zheng). - Update the ACPI SPCR driver to extend the existing XGENE 8250 workaround in it to a new platform (m400) and to work around an Xgene UART clock issue (Graeme Gregory). - Add a new utility function to the ACPI core to support using ACPI OEM ID / OEM Table ID / Revision for system identification in blacklisting or similar and switch over the existing code already using this information to this new interface (Toshi Kani). - Fix an xpower PMIC issue related to GPADC reads that always return 0 without extra pin manipulations (Hans de Goede). - Add statements to print debug messages in a couple of places in the ACPI core for easier diagnostics (Rafael Wysocki). - Clean up the ACPI processor driver slightly (Colin Ian King, Hanjun Guo). - Clean up the ACPI x86 boot code somewhat (Andy Shevchenko). - Add a quirk for Dell OptiPlex 9020M to the ACPI backlight driver (Alex Hung). - Assorted fixes, cleanups and updates related to ACPI (Amitoj Kaur Chawla, Bhumika Goyal, Frank Rowand, Jean Delvare, Punit Agrawal, Ronald Tschalär, Sumeet Pawnikar)" * tag 'acpi-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (75 commits) ACPI / APEI: Suppress message if HEST not present intel_pstate: convert to use acpi_match_platform_list() ACPI / blacklist: add acpi_match_platform_list() ACPI, APEI, EINJ: Subtract any matching Register Region from Trigger resources ACPI: make device_attribute const ACPI / sysfs: Extend ACPI sysfs to provide access to boot error region ACPI: APEI: fix the wrong iteration of generic error status block ACPI / processor: make function acpi_processor_check_duplicates() static ACPI / EC: Clean up EC GPE mask flag ACPI: EC: Fix possible issues related to EC initialization order ACPI / PM: Add debug statements to acpi_pm_notify_handler() ACPI: Add debug statements to acpi_global_event_handler() ACPI / scan: Enable GPEs before scanning the namespace ACPICA: Make it possible to enable runtime GPEs earlier ACPICA: Dispatch active GPEs at init time ACPI: SPCR: work around clock issue on xgene UART ACPI: SPCR: extend XGENE 8250 workaround to m400 ACPI / LPSS: Don't abort ACPI scan on missing mem resource mailbox: pcc: Drop uninformative output during boot ACPI/IORT: Add IORT named component memory address limits ...
2017-09-05PCI: xilinx-nwl: Fix platform_get_irq() error handlingFabio Estevam
When platform_get_irq() fails we should propagate the real error value instead of always returning -EINVAL. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Michal Simek <michal.simek@xilinx.com>
2017-09-05PCI: rockchip: Fix platform_get_irq() error handlingFabio Estevam
When platform_get_irq() fails we should propagate the real error value instead of always returning -EINVAL. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Shawn Lin <shawn.lin@rock-chips.com>
2017-09-05PCI: altera: Fix platform_get_irq() error handlingFabio Estevam
platform_get_irq() returns a negative number on failure, so adjust the logic to detect such condition and propagate the real error value on failure. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Ley Foon Tan <lftan@altera.com>
2017-09-05PCI: spear13xx: Fix platform_get_irq() error handlingFabio Estevam
platform_get_irq() returns a negative number on failure, so adjust the logic to detect such condition and propagate the real error value on failure. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Pratyush Anand <pratyush.anand@gmail.com>
2017-09-05PCI: artpec6: Fix platform_get_irq() error handlingFabio Estevam
platform_get_irq() returns a negative number on failure, so adjust the logic to detect such condition and propagate the real error value on failure. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Niklas Cassel <niklas.cassel@axis.com>
2017-09-05PCI: armada8k: Fix platform_get_irq() error handlingFabio Estevam
platform_get_irq() returns a negative number on failure, so adjust the logic to detect such condition and propagate the real error value on failure. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-09-05PCI: dra7xx: Fix platform_get_irq() error handlingFabio Estevam
When platform_get_irq() fails we should propagate the real error value instead of always returning -EINVAL. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-09-05PCI: exynos: Fix platform_get_irq() error handlingFabio Estevam
platform_get_irq() returns a negative number on failure, so adjust the logic to detect such condition and propagate the real error value on failure. Reported-by: Bjorn Helgaas <helgaas@kernel.org> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Jingoo Han <jingoohan1@gmail.com>
2017-09-05PCI: iproc: Clean up whitespaceBjorn Helgaas
Use tabs (not spaces) for indentation. No functional change intended. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-09-05PCI: iproc: Rename PCI_EXP_CAP to IPROC_PCI_EXP_CAPBjorn Helgaas
PCI_EXP_CAP is an iProc-specific value, so rename it to IPROC_PCI_EXP_CAP to make it obvious that it's not related to the generic values like PCI_EXP_RTCTL, etc. No functional change intended. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-09-05PCI: iproc: Add 500ms delay during device shutdownOza Pawandeep
During soft reset (e.g., "reboot" from Linux) on some iProc-based SOCs, the LCPLL clock and PERST both go off simultaneously. This seems in accordance with the PCIe Card Electromechanical spec, r2.0, sec 2.2.3, which says the clock goes inactive after PERST# goes active, but doesn't specify how long the clock should be valid after PERST#. However, we have observed that with the iProc Stingray, some Intel NVMe endpoints, e.g., the P3700 400GB series, are not detected correctly upon the next boot sequence unless the clock remains valid for some time after PERST# is asserted. Delay 500ms after asserting PERST# before performing a reboot. The 500ms is experimentally determined. Signed-off-by: Oza Pawandeep <oza.oza@broadcom.com> [bhelgaas: changelog, add spec reference, fold in iproc_pcie_shutdown() export from Arnd Bergmann <arnd@arndb.de>] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Ray Jui <ray.jui@broadcom.com> Reviewed-by: Scott Branden <scott.branden@broadcom.com>