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2014-09-24Merge tag 'pci-v3.17-fixes-3' of ↵Linus Torvalds2-16/+6
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fixes from Bjorn Helgaas: "Here are a few fixes that should be in v3.17. - Reverting "Don't scan random busses" covers up a CardBus regression having to do with allocating CardBus bus numbers. - Reverting "Make sure bus numbers stay within parents bounds" covers up an ACPI _CRS bug that makes us reconfigure a bridge, causing a broken device behind it to stop responding. - The pciehp timeout change fixes some code we added in v3.17. Without the fix, we can send a new hotplug command too early, before the timeout has expired. I hope for better fixes for the reverts, but those will have to come after v3.17" * tag 'pci-v3.17-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: pciehp: Fix pcie_wait_cmd() timeout Revert "PCI: Make sure bus number resources stay within their parents bounds" Revert "PCI: Don't scan random busses in pci_scan_bridge()"
2014-09-23PCI: pciehp: Fix pcie_wait_cmd() timeoutYinghai Lu1-1/+1
pcie_poll_cmd() take msecs instead of jiffies, so convert timeout to msecs. Fixes: 40b960831cfa ("PCI: pciehp: Compute timeout from hotplug command start time") Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-09-19Merge tag 'pci-v3.17-fixes-2' of ↵Linus Torvalds4-15/+57
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fixes from Bjorn Helgaas: "These fix: - Boot video device detection on dual-GPU Apple systems - Hotplug fiascos on VGA switcheroo with radeon & nouveau drivers - Boot hang on Freescale i.MX6 systems - Excessive "no hotplug settings from platform" warnings In particular: Enumeration - Don't default exclusively to first video device (Bruno Prémont) PCI device hotplug - Remove "no hotplug settings from platform" warning (Bjorn Helgaas) - Add pci_ignore_hotplug() for VGA switcheroo (Bjorn Helgaas) Freescale i.MX6 - Put LTSSM in "Detect" state before disabling (Lucas Stach)" * tag 'pci-v3.17-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: vgaarb: Drop obsolete #ifndef vgaarb: Don't default exclusively to first video device with mem+io ACPIPHP / radeon / nouveau: Remove acpi_bus_no_hotplug() PCI: Remove "no hotplug settings from platform" warning PCI: Add pci_ignore_hotplug() to ignore hotplug events for a device PCI: imx6: Put LTSSM in "Detect" state before disabling it MAINTAINERS: Add Lucas Stach as co-maintainer for i.MX6 PCI driver
2014-09-19Revert "PCI: Make sure bus number resources stay within their parents bounds"Bjorn Helgaas1-8/+2
This reverts commit 1820ffdccb9b ("PCI: Make sure bus number resources stay within their parents bounds") because it breaks some systems with LSI Logic FC949ES Fibre Channel Adapters, apparently by exposing a defect in those adapters. Dirk tested a Tyan VX50 (B4985) with this device that worked like this prior to 1820ffdccb9b: bus: [bus 00-7f] on node 0 link 1 ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-07]) pci 0000:00:0e.0: PCI bridge to [bus 0a] pci_bus 0000:0a: busn_res: can not insert [bus 0a] under [bus 00-07] (conflicts with (null) [bus 00-07]) pci 0000:0a:00.0: [1000:0646] type 00 class 0x0c0400 (FC adapter) Note that the root bridge [bus 00-07] aperture is wrong; this is a BIOS defect in the PCI0 _CRS method. But prior to 1820ffdccb9b, we didn't enforce that aperture, and the FC adapter worked fine at 0a:00.0. After 1820ffdccb9b, we notice that 00:0e.0's aperture is not contained in the root bridge's aperture, so we reconfigure it so it *is* contained: pci 0000:00:0e.0: bridge configuration invalid ([bus 0a-0a]), reconfiguring pci 0000:00:0e.0: PCI bridge to [bus 06-07] This effectively moves the FC device from 0a:00.0 to 07:00.0, which should be legal. But when we enumerate bus 06, the FC device doesn't respond, so we don't find anything. This is probably a defect in the FC device. Possible fixes (due to Yinghai): 1) Add a quirk to fix the _CRS information based on what amd_bus.c read from the hardware 2) Reset the FC device after we change its bus number 3) Revert 1820ffdccb9b Fix 1 would be relatively easy, but it does sweep the LSI FC issue under the rug. We might want to reconfigure bus numbers in the future for some other reason, e.g., hotplug, and then we could trip over this again. For that reason, I like fix 2, but we don't know whether it actually works, and we don't have a patch for it yet. This revert is fix 3, which also sweeps the LSI FC issue under the rug. Link: https://bugzilla.kernel.org/show_bug.cgi?id=84281 Reported-by: Dirk Gouders <dirk@gouders.net> Tested-by: Dirk Gouders <dirk@gouders.net> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: stable@vger.kernel.org # v3.15+ CC: Yinghai Lu <yinghai@kernel.org>
2014-09-19Revert "PCI: Don't scan random busses in pci_scan_bridge()"Bjorn Helgaas1-7/+3
This reverts commit fc1b253141b3 ("PCI: Don't scan random busses in pci_scan_bridge()") because it breaks CardBus on some machines. David tested a Dell Latitude D505 that worked like this prior to fc1b253141b3: pci 0000:00:1e.0: PCI bridge to [bus 01] pci 0000:01:01.0: CardBus bridge to [bus 02-05] Note that the 01:01.0 CardBus bridge has a bus number aperture of [bus 02-05], but those buses are all outside the 00:1e.0 PCI bridge bus number aperture, so accesses to buses 02-05 never reach CardBus. This is later patched up by yenta_fixup_parent_bridge(), which changes the subordinate bus number of the 00:1e.0 PCI bridge: pci_bus 0000:01: Raising subordinate bus# of parent bus (#01) from #01 to #05 With fc1b253141b3, pci_scan_bridge() fails immediately when it notices that we can't allocate a valid secondary bus number for the CardBus bridge, and CardBus doesn't work at all: pci 0000:01:01.0: can't allocate child bus 01 from [bus 01] I'd prefer to fix this by integrating the yenta_fixup_parent_bridge() logic into pci_scan_bridge() so we fix the bus number apertures up front. But I don't think we can do that before v3.17, so I'm going to revert this to avoid the problem while we're working on the long-term fix. Link: https://bugzilla.kernel.org/show_bug.cgi?id=83441 Link: http://lkml.kernel.org/r/1409303414-5196-1-git-send-email-david.henningsson@canonical.com Reported-by: David Henningsson <david.henningsson@canonical.com> Tested-by: David Henningsson <david.henningsson@canonical.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: stable@vger.kernel.org # v3.15+
2014-09-19Merge branch 'pci/vga'; commit '6a73336bde29' into for-linusBjorn Helgaas1-5/+1
* pci/vga: vgaarb: Drop obsolete #ifndef vgaarb: Don't default exclusively to first video device with mem+io * commit '6a73336bde29': PCI: Remove "no hotplug settings from platform" warning
2014-09-15Merge branch 'pci/hotplug-vga' into for-linusBjorn Helgaas2-10/+18
* pci/hotplug-vga: ACPIPHP / radeon / nouveau: Remove acpi_bus_no_hotplug() PCI: Add pci_ignore_hotplug() to ignore hotplug events for a device
2014-09-12PCI: Remove "no hotplug settings from platform" warningBjorn Helgaas1-5/+1
We print way too many messages like this: pci 0000:00:00.0: no hotplug settings from platform pci 0000:00:00.0: using default PCI settings This usually happens when the platform doesn't supply an ACPI _HPP method, but the method is optional, so there's no point in warning about it. Not only are the messages useless, but we call pci_configure_slot() far too many times, so they're repeated many times. I'll fix the overuse of pci_configure_slot() too, but that will wait until the next merge window. For now, just remove both log messages. Link: https://bugzilla.kernel.org/show_bug.cgi?id=84391 Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Yinghai Lu <yinghai@kernel.org>
2014-09-10PCI: Add pci_ignore_hotplug() to ignore hotplug events for a deviceBjorn Helgaas2-10/+18
Powering off a hot-pluggable device, e.g., with pci_set_power_state(D3cold), normally generates a hot-remove event that unbinds the driver. Some drivers expect to remain bound to a device even while they power it off and back on again. This can be dangerous, because if the device is removed or replaced while it is powered off, the driver doesn't know that anything changed. But some drivers accept that risk. Add pci_ignore_hotplug() for use by drivers that know their device cannot be removed. Using pci_ignore_hotplug() tells the PCI core that hot-plug events for the device should be ignored. The radeon and nouveau drivers use this to switch between a low-power, integrated GPU and a higher-power, higher-performance discrete GPU. They power off the unused GPU, but they want to remain bound to it. This is a reimplementation of f244d8b623da ("ACPIPHP / radeon / nouveau: Fix VGA switcheroo problem related to hotplug") but extends it to work with both acpiphp and pciehp. This fixes a problem where systems with dual GPUs using the radeon drivers become unusable, freezing every few seconds (see bugzillas below). The resume of the radeon device may also fail, e.g., This fixes problems on dual GPU systems where the radeon driver becomes unusable because of problems while suspending the device, as in bug 79701: [drm] radeon: finishing device. radeon 0000:01:00.0: Userspace still has active objects ! radeon 0000:01:00.0: ffff8800cb4ec288 ffff8800cb4ec000 16384 4294967297 force free ... WARNING: CPU: 0 PID: 67 at /home/apw/COD/linux/drivers/gpu/drm/radeon/radeon_gart.c:234 radeon_gart_unbind+0xd2/0xe0 [radeon]() trying to unbind memory from uninitialized GART ! or while resuming it, as in bug 77261: radeon 0000:01:00.0: ring 0 stalled for more than 10158msec radeon 0000:01:00.0: GPU lockup ... radeon 0000:01:00.0: GPU pci config reset pciehp 0000:00:01.0:pcie04: Card not present on Slot(1-1) radeon 0000:01:00.0: GPU reset succeeded, trying to resume *ERROR* radeon: dpm resume failed radeon 0000:01:00.0: Wait for MC idle timedout ! Link: https://bugzilla.kernel.org/show_bug.cgi?id=77261 Link: https://bugzilla.kernel.org/show_bug.cgi?id=79701 Reported-by: Shawn Starr <shawn.starr@rogers.com> Reported-by: Jose P. <lbdkmjdf@sharklasers.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Rajat Jain <rajatxjain@gmail.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Dave Airlie <airlied@redhat.com> CC: stable@vger.kernel.org # v3.15+
2014-09-04PCI: imx6: Put LTSSM in "Detect" state before disabling itLucas Stach1-0/+38
This fixes a boot hang observed when the bootloader already enabled the PCIe link for its own use. The fundamental problem is that Freescale forgot to wire up the core reset, so software doesn't have a sane way to get the core into a defined state. According to the DW PCIe core reference manual, configuration of the core may only happen when the LTSSM is disabled, so this is one of the first things we need to do. Apparently this isn't safe to do when the LTSSM is in any state other than "detect" as we observe an instant machine hang when trying to do so while the link is already up. As a workaround, force LTSSM into detect state right before hitting the disable switch. There is still a race window because the LTSSM may transition out of "detect" before we can disable it, but it's the best we can do for now. [bhelgaas: mention race window] Link: http://lkml.kernel.org/r/1406830565-23450-3-git-send-email-l.stach@pengutronix.de Reported-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Tim Harvey <tharvey@gateworks.com>
2014-09-03Merge tag 'pci-v3.17-fixes-1' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fix from Bjorn Helgaas: "This fixes an ARM allmodconfig build problem: Remove module option for ST Microelectronics SPEAr13xx" * tag 'pci-v3.17-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: spear: Remove module option
2014-08-19Merge tag 'pci-v3.17-changes-3' of ↵Linus Torvalds6-33/+700
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI changes from Bjorn Helgaas: "Marvell MVEBU - Remove ARCH_KIRKWOOD dependency (Andrew Lunn) NVIDIA Tegra - Add debugfs support (Thierry Reding) Synopsys DesignWare - Look for configuration space in 'reg', not 'ranges' (Kishon Vijay Abraham I) - Program ATU with untranslated address (Kishon Vijay Abraham I) - Add config access-related pcie_host_ops for v3.65 hardware (Murali Karicheri) - Add MSI-related pcie_host_ops for v3.65 hardware (Murali Karicheri) TI DRA7xx - Add TI DR7xx PCIe driver (Kishon Vijay Abraham I)" * tag 'pci-v3.17-changes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: designware: Add MSI-related pcie_host_ops for v3.65 hardware PCI: designware: Add config access-related pcie_host_ops for v3.65 hardware PCI: dra7xx: Add TI DRA7xx PCIe driver PCI: designware: Program ATU with untranslated address PCI: designware: Look for configuration space in 'reg', not 'ranges' PCI: tegra: Add debugfs support PCI: mvebu: Remove ARCH_KIRKWOOD dependency
2014-08-18PCI: spear: Remove module optionSachin Kamat1-1/+1
We get the following error when built as a module. Though the general fix would be in this case to export the below mentioned symbols, considering that dw_pcie_host_init() is marked with __init and other PCI drivers do not support modular build, I have disabled building this driver as a module too. ERROR: "dw_pcie_host_init" [drivers/pci/host/pcie-spear13xx.ko] undefined! ERROR: "dw_handle_msi_irq" [drivers/pci/host/pcie-spear13xx.ko] undefined! ERROR: "dw_pcie_msi_init" [drivers/pci/host/pcie-spear13xx.ko] undefined! ERROR: "dw_pcie_cfg_write" [drivers/pci/host/pcie-spear13xx.ko] undefined! ERROR: "dw_pcie_cfg_read" [drivers/pci/host/pcie-spear13xx.ko] undefined! ERROR: "dw_pcie_setup_rc" [drivers/pci/host/pcie-spear13xx.ko] undefined! ERROR: "dw_pcie_link_up" [drivers/pci/host/pcie-spear13xx.ko] undefined! make[1]: *** [__modpost] Error 1 make: *** [modules] Error 2 Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
2014-08-15Merge tag 'pci-v3.17-changes-2' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull DEFINE_PCI_DEVICE_TABLE removal from Bjorn Helgaas: "Part two of the PCI changes for v3.17: - Remove DEFINE_PCI_DEVICE_TABLE macro use (Benoit Taine) It's a mechanical change that removes uses of the DEFINE_PCI_DEVICE_TABLE macro. I waited until later in the merge window to reduce conflicts, but it's possible you'll still see a few" * tag 'pci-v3.17-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use
2014-08-14Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linuxLinus Torvalds1-2/+2
Pull device tree updates from Grant Likely: "The branch contains the following device tree changes the v3.17 merge window: Group changes to the device tree. In preparation for adding device tree overlay support, OF_DYNAMIC is reworked so that a set of device tree changes can be prepared and applied to the tree all at once. OF_RECONFIG notifiers see the most significant change here so that users always get a consistent view of the tree. Notifiers generation is moved from before a change to after it, and notifiers for a group of changes are emitted after the entire block of changes have been applied Automatic console selection from DT. Console drivers can now use of_console_check() to see if the device node is specified as a console device. If so then it gets added as a preferred console. UART devices get this support automatically when uart_add_one_port() is called. DT unit tests no longer depend on pre-loaded data in the device tree. Data is loaded dynamically at the start of unit tests, and then unloaded again when the tests have completed. Also contains a few bugfixes for reserved regions and early memory setup" * tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux: (21 commits) of: Fixing OF Selftest build error drivers: of: add automated assignment of reserved regions to client devices of: Use proper types for checking memory overflow of: typo fix in __of_prop_dup() Adding selftest testdata dynamically into live tree of: Add todo tasklist for Devicetree of: Transactional DT support. of: Reorder device tree changes and notifiers of: Move dynamic node fixups out of powerpc and into common code of: Make sure attached nodes don't carry along extra children of: Make devicetree sysfs update functions consistent. of: Create unlocked versions of node and property add/remove functions OF: Utility helper functions for dynamic nodes of: Move CONFIG_OF_DYNAMIC code into a separate file of: rename of_aliases_mutex to just of_mutex of/platform: Fix of_platform_device_destroy iteration of devices of: Migrate of_find_node_by_name() users to for_each_node_by_name() tty: Update hypervisor tty drivers to use core stdout parsing code. arm/versatile: Add the uart as the stdout device. of: Enable console on serial ports specified by /chosen/stdout-path ...
2014-08-12PCI: Remove DEFINE_PCI_DEVICE_TABLE macro useBenoit Taine1-1/+1
We should prefer `struct pci_device_id` over `DEFINE_PCI_DEVICE_TABLE` to meet kernel coding style guidelines. This issue was reported by checkpatch. A simplified version of the semantic patch that makes this change is as follows (http://coccinelle.lip6.fr/): // <smpl> @@ identifier i; declarer name DEFINE_PCI_DEVICE_TABLE; initializer z; @@ - DEFINE_PCI_DEVICE_TABLE(i) + const struct pci_device_id i[] = z; // </smpl> [bhelgaas: add semantic patch] Signed-off-by: Benoit Taine <benoit.taine@lip6.fr> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-08-08Merge tag 'drivers-for-3.17' of ↵Linus Torvalds4-61/+563
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver changes from Olof Johansson: "A handful of driver-related changes. We've had a bunch of them going in through other branches as well, so it's only a part of what we really have this release. Larger pieces are: - Removal of a now unused PWM driver for atmel [ This includes AVR32 changes that have been appropriately acked ] - Performance counter support for the arm CCN interconnect - OMAP mailbox driver cleanups and consolidation - PCI and SATA PHY drivers for SPEAr 13xx platforms - Redefinition (with backwards compatibility!) of PCI DT bindings for Tegra to better model regulators/power" Note: this merge also fixes up the semantic conflict with the new calling convention for devm_phy_create(), see commit f0ed817638b5 ("phy: core: Let node ptr of PHY point to PHY and not of PHY provider") that came in through Greg's USB tree. Semantic merge patch by Stephen Rothwell <sfr@canb.auug.org.au> through the next tree. * tag 'drivers-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (38 commits) bus: arm-ccn: Fix error handling at event allocation mailbox/omap: add a parent structure for every IP instance mailbox/omap: remove the private mailbox structure mailbox/omap: consolidate OMAP mailbox driver mailbox/omap: simplify the fifo assignment by using macros mailbox/omap: remove omap_mbox_type_t from mailbox ops mailbox/omap: remove OMAP1 mailbox driver mailbox/omap: use devm_* interfaces bus: ARM CCN: add PERF_EVENTS dependency bus: ARM CCN PMU driver PCI: spear: Remove spear13xx_pcie_remove() PCI: spear: Fix Section mismatch compilation warning for probe() ARM: tegra: Remove legacy PCIe power supply properties PCI: tegra: Remove deprecated power supply properties PCI: tegra: Implement accurate power supply scheme ARM: SPEAr13xx: Update defconfigs ARM: SPEAr13xx: Add pcie and miphy DT nodes ARM: SPEAr13xx: Add bindings and dt node for misc block ARM: SPEAr13xx: Fix static mapping table phy: Add drivers for PCIe and SATA phy on SPEAr13xx ...
2014-08-08Merge tag 'cleanup-for-3.17' of ↵Linus Torvalds1-2/+3
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC cleanups from Olof Johansson: "This merge window brings a good size of cleanups on various platforms. Among the bigger ones: - Removal of Samsung s5pc100 and s5p64xx platforms. Both of these have lacked active support for quite a while, and after asking around nobody showed interest in keeping them around. If needed, they could be resurrected in the future but it's more likely that we would prefer reintroduction of them as DT and multiplatform-enabled platforms instead. - OMAP4 controller code register define diet. They defined a lot of registers that were never actually used, etc. - Move of some of the Tegra platform code (PMC, APBIO, fuse, powergate) to drivers/soc so it can be shared with 64-bit code. This also converts them over to traditional driver models where possible. - Removal of legacy gpio-samsung driver, since the last users have been removed (moved to pinctrl) Plus a bunch of smaller changes for various platforms that sort of dissapear in the diffstat for the above. clps711x cleanups, shmobile header file refactoring/moves for multiplatform friendliness, some misc cleanups, etc" * tag 'cleanup-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (117 commits) drivers: CCI: Correct use of ! and & video: clcd-versatile: Depend on ARM video: fix up versatile CLCD helper move MAINTAINERS: Add sdhci-st file to ARCH/STI architecture ARM: EXYNOS: Fix build breakge with PM_SLEEP=n MAINTAINERS: Remove Kirkwood ARM: tegra: Convert PMC to a driver soc/tegra: fuse: Set up in early initcall ARM: tegra: Always lock the CPU reset vector ARM: tegra: Setup CPU hotplug in a pure initcall soc/tegra: Implement runtime check for Tegra SoCs soc/tegra: fuse: fix dummy functions soc/tegra: fuse: move APB DMA into Tegra20 fuse driver soc/tegra: Add efuse and apbmisc bindings soc/tegra: Add efuse driver for Tegra ARM: tegra: move fuse exports to soc/tegra/fuse.h ARM: tegra: export apb dma readl/writel ARM: tegra: Use a function to get the chip ID ARM: tegra: Sort includes alphabetically ARM: tegra: Move includes to include/soc/tegra ...
2014-08-07Merge branch 'for-linus' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Martin Schwidefsky: "Mostly cleanups and bug-fixes, with two exceptions. The first is lazy flushing of I/O-TLBs for PCI to improve performance, the second is software dirty bits in the pmd for the madvise-free implementation" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (24 commits) s390/locking: Reenable optimistic spinning s390/mm: implement dirty bits for large segment table entries KVM: s390/mm: Fix page table locking vs. split pmd lock s390/dasd: fix camel case s390/3215: fix hanging console issue s390/irq: improve displayed interrupt order in /proc/interrupts s390/seccomp: fix error return for filtered system calls s390/pci: introduce lazy IOTLB flushing for DMA unmap dasd: fix error recovery for alias devices during format dasd: fix list_del corruption during format dasd: fix unresponsive device during format dasd: use aliases for formatted devices during format s390/pci: fix kmsg component s390/kdump: Return NOTIFY_OK for all actions other than MEM_GOING_OFFLINE s390/watchdog: Fix module name in Kconfig help text s390/dasd: replace seq_printf by seq_puts s390/dasd: replace pr_warning by pr_warn s390/dasd: Move EXPORT_SYMBOL after function/variable s390/dasd: remove unnecessary null test before debugfs_remove s390/zfcp: use qdio buffer helpers ...
2014-08-07Merge tag 'pm+acpi-3.17-rc1' of ↵Linus Torvalds2-69/+40
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI and power management updates from Rafael Wysocki: "Again, ACPICA leads the pack (47 commits), followed by cpufreq (18 commits) and system suspend/hibernation (9 commits). From the new code perspective, the ACPICA update brings ACPI 5.1 to the table, including a new device configuration object called _DSD (Device Specific Data) that will hopefully help us to operate device properties like Device Trees do (at least to some extent) and changes related to supporting ACPI on ARM. Apart from that we have hibernation changes making it use radix trees to store memory bitmaps which should speed up some operations carried out by it quite significantly. We also have some power management changes related to suspend-to-idle (the "freeze" sleep state) support and more preliminary changes needed to support ACPI on ARM (outside of ACPICA). The rest is fixes and cleanups pretty much everywhere. Specifics: - ACPICA update to upstream version 20140724. That includes ACPI 5.1 material (support for the _CCA and _DSD predefined names, changes related to the DMAR and PCCT tables and ARM support among other things) and cleanups related to using ACPICA's header files. A major part of it is related to acpidump and the core code used by that utility. Changes from Bob Moore, David E Box, Lv Zheng, Sascha Wildner, Tomasz Nowicki, Hanjun Guo. - Radix trees for memory bitmaps used by the hibernation core from Joerg Roedel. - Support for waking up the system from suspend-to-idle (also known as the "freeze" sleep state) using ACPI-based PCI wakeup signaling (Rafael J Wysocki). - Fixes for issues related to ACPI button events (Rafael J Wysocki). - New device ID for an ACPI-enumerated device included into the Wildcat Point PCH from Jie Yang. - ACPI video updates related to backlight handling from Hans de Goede and Linus Torvalds. - Preliminary changes needed to support ACPI on ARM from Hanjun Guo and Graeme Gregory. - ACPI PNP core cleanups from Arjun Sreedharan and Zhang Rui. - Cleanups related to ACPI_COMPANION() and ACPI_HANDLE() macros (Rafael J Wysocki). - ACPI-based device hotplug cleanups from Wei Yongjun and Rafael J Wysocki. - Cleanups and improvements related to system suspend from Lan Tianyu, Randy Dunlap and Rafael J Wysocki. - ACPI battery cleanup from Wei Yongjun. - cpufreq core fixes from Viresh Kumar. - Elimination of a deadband effect from the cpufreq ondemand governor and intel_pstate driver cleanups from Stratos Karafotis. - 350MHz CPU support for the powernow-k6 cpufreq driver from Mikulas Patocka. - Fix for the imx6 cpufreq driver from Anson Huang. - cpuidle core and governor cleanups from Daniel Lezcano, Sandeep Tripathy and Mohammad Merajul Islam Molla. - Build fix for the big_little cpuidle driver from Sachin Kamat. - Configuration fix for the Operation Performance Points (OPP) framework from Mark Brown. - APM cleanup from Jean Delvare. - cpupower utility fixes and cleanups from Peter Senna Tschudin, Andrey Utkin, Himangi Saraogi, Rickard Strandqvist, Thomas Renninger" * tag 'pm+acpi-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (118 commits) ACPI / LPSS: add LPSS device for Wildcat Point PCH ACPI / PNP: Replace faulty is_hex_digit() by isxdigit() ACPICA: Update version to 20140724. ACPICA: ACPI 5.1: Update for PCCT table changes. ACPICA/ARM: ACPI 5.1: Update for GTDT table changes. ACPICA/ARM: ACPI 5.1: Update for MADT changes. ACPICA/ARM: ACPI 5.1: Update for FADT changes. ACPICA: ACPI 5.1: Support for the _CCA predifined name. ACPICA: ACPI 5.1: New notify value for System Affinity Update. ACPICA: ACPI 5.1: Support for the _DSD predefined name. ACPICA: Debug object: Add current value of Timer() to debug line prefix. ACPICA: acpihelp: Add UUID support, restructure some existing files. ACPICA: Utilities: Fix local printf issue. ACPICA: Tables: Update for DMAR table changes. ACPICA: Remove some extraneous printf arguments. ACPICA: Update for comments/formatting. No functional changes. ACPICA: Disassembler: Add support for the ToUUID opererator (macro). ACPICA: Remove a redundant cast to acpi_size for ACPI_OFFSET() macro. ACPICA: Work around an ancient GCC bug. ACPI / processor: Make it possible to get local x2apic id via _MAT ...
2014-08-05Merge tag 'char-misc-3.17-rc1' of ↵Linus Torvalds2-4/+118
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char / misc driver patches from Greg KH: "Here's the big driver misc / char pull request for 3.17-rc1. Lots of things in here, the thunderbolt support for Apple laptops, some other new drivers, testing fixes, and other good things. All have been in linux-next for a long time" * tag 'char-misc-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (119 commits) misc: bh1780: Introduce the use of devm_kzalloc Lattice ECP3 FPGA: Correct endianness drivers/misc/ti-st: Load firmware from ti-connectivity directory. dt-bindings: extcon: Add support for SM5502 MUIC device extcon: sm5502: Change internal hardware switch according to cable type extcon: sm5502: Detect cable state after completing platform booting extcon: sm5502: Add support new SM5502 extcon device driver extcon: arizona: Get MICVDD against extcon device extcon: Remove unnecessary OOM messages misc: vexpress: Fix sparse non static symbol warnings mei: drop unused hw dependent fw status functions misc: bh1770glc: Use managed functions pcmcia: remove DEFINE_PCI_DEVICE_TABLE usage misc: remove DEFINE_PCI_DEVICE_TABLE usage ipack: Replace DEFINE_PCI_DEVICE_TABLE macro use drivers/char/dsp56k.c: drop check for negativity of unsigned parameter mei: fix return value on disconnect timeout mei: don't schedule suspend in pm idle mei: start disconnect request timer consistently mei: reset client connection state on timeout ...
2014-08-05Merge branch 'x86-ras-for-linus' of ↵Linus Torvalds2-3/+2
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RAS updates from Ingo Molnar: "The main changes in this cycle are: - RAS tracing/events infrastructure, by Gong Chen. - Various generalizations of the APEI code to make it available to non-x86 architectures, by Tomasz Nowicki" * 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/ras: Fix build warnings in <linux/aer.h> acpi, apei, ghes: Factor out ioremap virtual memory for IRQ and NMI context. acpi, apei, ghes: Make NMI error notification to be GHES architecture extension. apei, mce: Factor out APEI architecture specific MCE calls. RAS, extlog: Adjust init flow trace, eMCA: Add a knob to adjust where to save event log trace, RAS: Add eMCA trace event interface RAS, debugfs: Add debugfs interface for RAS subsystem CPER: Adjust code flow of some functions x86, MCE: Robustify mcheck_init_device trace, AER: Move trace into unified interface trace, RAS: Add basic RAS trace event x86, MCE: Kill CPU_POST_DEAD
2014-08-04Merge tag 'pci-v3.17-changes' of ↵Linus Torvalds15-287/+252
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: "I'll be on vacation until Aug 11, and I suspect the merge window will open before then, so I'm sending this to you early. There are more things I'd like to get into v3.17, so I hope to send another pull request soon after I return. The most notable pieces here are: - Support BARs up to 128GB (up from 8GB) - Fix SR-IOV resource assignment when we fail to expand a resource - Rework pciehp to handle a common hardware erratum - Cleanup MSI - Fix NIC renaming issue - Fix VGA default device issue on EFI systems - Fix ASPM configuration (previously we didn't enable it as expected) Alex Williamson has graciously agreed to take care of any major issues with this if you take it before I return. Details: Resource management - Support BAR sizes up to 128GB (Yinghai Lu) - Keep original resource if we fail to expand it (Guo Chao) - Return conventional error values from pci_revert_fw_address() (Bjorn Helgaas) - Tidy resource assignment messages (Bjorn Helgaas) - Don't exclude low BIOS area for non-PCI cards (Christoph Schulz) PCI device hotplug - Prevent NULL dereference during pciehp probe (Andreas Noever) - Make pciehp pcie_wait_cmd() self-contained (Bjorn Helgaas) - Wait for pciehp hotplug command completion lazily (Bjorn Helgaas) - Compute pciehp timeout from hotplug command start time (Bjorn Helgaas) - Remove pciehp assumptions about which commands cause completion events (Bjorn Helgaas) - Clear pciehp Data Link Layer State Changed during init (Myron Stowe) - Remove pciehp struct controller.no_cmd_complete (Rajat Jain) - Remove cpqphp unnecessary null test (Fabian Frederick) - Remove "invalid IRQ" warning for hot-added PCIe ports (Jiang Liu) IOMMU - Add DMA alias quirk for Intel 82801 bridge (Alex Williamson) MSI - Add internal msix_clear_and_set_ctrl() (Yijing Wang) - Remove unused msi_enabled_mask() (Yijing Wang) - Cache Multiple Message Capable in struct msi_desc (Yijing Wang) - Add msi_setup_entry() to clean up initialization (Yijing Wang) - Remove unused msi_remove_pci_irq_vectors() (Yijing Wang) - Retrieve first MSI IRQ from msi_desc rather than pci_dev (Yijing Wang) - Remove unused list access in __pci_restore_msix_state() (Yijing Wang) - Use irq_get_msi_desc() to simplify code (Yijing Wang) Generic host bridge driver - Fix GPL v2 license string typo (Bjorn Helgaas) Marvell MVEBU - Fix GPL v2 license string typo (Thierry Reding) NVIDIA Tegra - Use correct initial HW settings (Phil Edworthy) - Remove rcar_pcie_setup_window() resource argument (Phil Edworthy) - Fix GPL v2 license string typo (Thierry Reding) Renesas R-Car - Remove redundant config accessor register checks (Sergei Shtylyov) - Fix GPL v2 license string typo (Bjorn Helgaas) Virtualization - Factor secondary bus reset logic (Gavin Shan) - Remove duplicate powerpc reset logic (Gavin Shan) Miscellaneous - Rework default VGA detection for EFI (Bruno Prémont) - Fix sysfs "acpi_index" and "label" errors for NIC renaming (Simone Gotti) - Configure ASPM at pci_enable_device()-time (Vidya Sagar) - Add include/linux/pci_ids.h include guard (Rasmus Villemoes)" * tag 'pci-v3.17-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (38 commits) PCI/MSI: Use irq_get_msi_desc() to simplify code PCI/MSI: Remove unused list access in __pci_restore_msix_state() PCI/MSI: Retrieve first MSI IRQ from msi_desc rather than pci_dev PCI/MSI: Remove unused function msi_remove_pci_irq_vectors() PCI/MSI: Add msi_setup_entry() to clean up MSI initialization PCI: Configure ASPM when enabling device x86: don't exclude low BIOS area when allocating address space for non-PCI cards PCI: generic: Fix GPL v2 license string typo PCI: rcar: Fix GPL v2 license string typo PCI: tegra: Fix GPL v2 license string typo PCI: mvebu: Fix GPL v2 license string typo PCI: Add include guard to include/linux/pci_ids.h x86, ia64: Move EFI_FB vga_default_device() initialization to pci_vga_fixup() PCI: Tidy resource assignment messages PCI: Return conventional error values from pci_revert_fw_address() PCI: Cleanup control flow PCI: Support BAR sizes up to 128GB PCI: cpqphp: Remove unnecessary null test before debugfs_remove() PCI: pciehp: Clear Data Link Layer State Changed during init PCI: Add bridge DMA alias quirk for Intel 82801 bridge ...
2014-07-30Merge tag 'please-pull-apei' into x86/rasH. Peter Anvin1-2/+7
APEI is currently implemented so that it depends on x86 hardware. The primary dependency is that GHES uses the x86 NMI for hardware error notification and MCE for memory error handling. These patches remove that dependency. Other APEI features such as error reporting via external IRQ, error serialization, or error injection, do not require changes to use them on non-x86 architectures. The following patch set eliminates the APEI Kconfig x86 dependency by making these changes: - treat NMI notification as GHES architecture - HAVE_ACPI_APEI_NMI - group and wrap around #ifdef CONFIG_HAVE_ACPI_APEI_NMI code which is used only for NMI path - identify architectural boxes and abstract it accordingly (tlb flush and MCE) - rework ioremap for both IRQ and NMI context NMI code is kept in ghes.c file since NMI and IRQ context are tightly coupled. Note, these patches introduce no functional changes for x86. The NMI notification feature is hard selected for x86. Architectures that want to use this feature should also provide NMI code infrastructure.
2014-07-28Merge branches 'acpi-video' and 'acpi-hotplug'Rafael J. Wysocki1-20/+13
* acpi-video: ACPI: move models with win8 brightness problems from win8 blacklist to use_native_backlight ACPI / video: Fix backlight taking 2 steps on a brightness up/down keypress * acpi-hotplug: ACPI / hotplug / PCI: Fix sparse non static symbol warning ACPI / hotplug: Simplify acpi_set_hp_context() ACPI / hotplug / PCI: Eliminate acpiphp_dev_to_bridge()
2014-07-28Merge branches 'acpi-pnp' and 'acpi-pci'Rafael J. Wysocki1-9/+7
* acpi-pnp: ACPI / PNP: Use ACPI_COMPANION() instead of ACPI_HANDLE() ACPI / PNP: do ACPI binding directly * acpi-pci: ACPI / PCI: Use ACPI_COMPANION() instead of ACPI_HANDLE()
2014-07-24ACPI / PCI: Use ACPI_COMPANION() instead of ACPI_HANDLE()Rafael J. Wysocki1-9/+7
The ACPI_HANDLE() macro evaluates ACPI_COMPANION() internally to return the handle of the device's ACPI companion, so it is much more straightforward and efficient to use ACPI_COMPANION() directly to obtain the device's ACPI companion object instead of using ACPI_HANDLE() and acpi_bus_get_device() on the returned handle for the same thing. Use ACPI_COMPANION() instead of ACPI_HANDLE() in the PCI ACPI support code. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-23Merge branches 'pci/host-designware', 'pci/host-mvebu' and 'pci/host-tegra' ↵Bjorn Helgaas6-33/+700
into next * pci/host-designware: PCI: designware: Add MSI-related pcie_host_ops for v3.65 hardware PCI: designware: Add config access-related pcie_host_ops for v3.65 hardware PCI: dra7xx: Add TI DRA7xx PCIe driver PCI: designware: Program ATU with untranslated address PCI: designware: Look for configuration space in 'reg', not 'ranges' * pci/host-mvebu: PCI: mvebu: Remove ARCH_KIRKWOOD dependency * pci/host-tegra: PCI: tegra: Add debugfs support
2014-07-23ACPI / PM: Revork the handling of ACPI device wakeup notificationsRafael J. Wysocki1-40/+20
Since ACPI wakeup GPEs are going to be enabled during system suspend as well as for runtime wakeup by a subsequent patch and the same notify handlers will be used in both cases, rework the ACPI device wakeup notification framework so that the part specific to physical devices is always run asynchronously from the PM workqueue. This prevents runtime resume callbacks for those devices from being run during system suspend and resume which may not be appropriate, among other things. Also make ACPI device wakeup notification handling a bit more robust agaist subsequent removal of ACPI device objects, whould that ever happen, and create a wakeup source object for each ACPI device configured for wakeup so that wakeup notifications for those devices can wake up the system from the "freeze" sleep state. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-23PCI: designware: Add MSI-related pcie_host_ops for v3.65 hardwareMurali Karicheri2-14/+39
DesignWare v3.65 hardware implements MSI controller registers in application space. This requires updates to the DesignWare core to support controllers based on this older hardware. Add msi_irq_set()/clear() interfaces to allow Set/Clear MSI IRQ enable bit in the application register. Also, v3.65 hardware uses the MSI_IRQ register in application register space to raise MSI IRQ to the RC from EP. Current code uses the standard mechanism as per PCI spec. So add get_msi_data() to get the address of this register so common code can work on both v3.65 and newer hardware. [bhelgaas: changelog] Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Pratyush Anand <pratyush.anand@st.com> Acked-by: Mohit Kumar <mohit.kumar@st.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> CC: Russell King <linux@arm.linux.org.uk> CC: Grant Likely <grant.likely@linaro.org> CC: Rob Herring <robh+dt@kernel.org> CC: Richard Zhu <r65037@freescale.com> CC: Kishon Vijay Abraham I <kishon@ti.com> CC: Marek Vasut <marex@denx.de> CC: Arnd Bergmann <arnd@arndb.de> CC: Pawel Moll <pawel.moll@arm.com> CC: Mark Rutland <mark.rutland@arm.com> CC: Ian Campbell <ijc+devicetree@hellion.org.uk> CC: Kumar Gala <galak@codeaurora.org> CC: Randy Dunlap <rdunlap@infradead.org> CC: Grant Likely <grant.likely@linaro.org>
2014-07-23PCI: designware: Add config access-related pcie_host_ops for v3.65 hardwareMurali Karicheri2-2/+14
DesignWare v3.65 hardware requires application space registers to be configured to access the remote EP config space. To support this, add rd_other_conf() and wr_other_conf() to pcie_host_ops. [bhelgaas: changelog] Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Pratyush Anand <pratyush.anand@st.com> Acked-by: Mohit Kumar <mohit.kumar@st.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> CC: Russell King <linux@arm.linux.org.uk> CC: Grant Likely <grant.likely@linaro.org> CC: Rob Herring <robh+dt@kernel.org> CC: Richard Zhu <r65037@freescale.com> CC: Kishon Vijay Abraham I <kishon@ti.com> CC: Marek Vasut <marex@denx.de> CC: Arnd Bergmann <arnd@arndb.de> CC: Pawel Moll <pawel.moll@arm.com> CC: Mark Rutland <mark.rutland@arm.com> CC: Ian Campbell <ijc+devicetree@hellion.org.uk> CC: Kumar Gala <galak@codeaurora.org> CC: Randy Dunlap <rdunlap@infradead.org> CC: Grant Likely <grant.likely@linaro.org>
2014-07-23PCI: dra7xx: Add TI DRA7xx PCIe driverKishon Vijay Abraham I3-0/+468
Add support for PCIe controller in DRA7xx. This driver re-uses the designware core code that is already present in kernel. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org> Cc: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Cc: Mohit Kumar <mohit.kumar@st.com> Cc: Marek Vasut <marex@denx.de> Cc: Arnd Bergmann <arnd@arndb.de>
2014-07-23PCI: designware: Program ATU with untranslated addressKishon Vijay Abraham I2-14/+45
In DRA7, the CPU sees 32-bit addresses, but the PCIe controller can see only 28-bit addresses. So whenever the CPU issues a read/write request, the 4 most significant bits are used by L3 to determine the target controller. For example, the CPU reserves [mem 0x20000000-0x2fffffff] for the PCIe controller but the PCIe controller will see only [0x00000000-0x0fffffff]. For programming the outbound translation window the *base* should be programmed as 0x00000000. Whenever we try to write to, e.g., 0x20000000, it will be translated to whatever we have programmed in the translation window with base as 0x00000000. This is needed when the dt node is modelled something like this: axi { compatible = "simple-bus"; #size-cells = <1>; #address-cells = <1>; ranges = <0x0 0x20000000 0x10000000 // 28-bit bus 0x51000000 0x51000000 0x3000>; pcie@51000000 { reg = <0x1000 0x2000>, <0x51002000 0x14c>, <0x51000000 0x2000>; reg-names = "config", "ti_conf", "rc_dbics"; #address-cells = <3>; #size-cells = <2>; ranges = <0x81000000 0 0 0x03000 0 0x00010000 0x82000000 0 0x20013000 0x13000 0 0xffed000>; }; }; Here the CPU address for configuration space is 0x20013000 and the controller address for configuration space is 0x13000. The controller address should be used while programming the ATU (in order for translation to happen properly in DRA7xx). Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Mohit Kumar <mohit.kumar@st.com> Cc: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Cc: Jingoo Han <jg1.han@samsung.com> Cc: Marek Vasut <marex@denx.de> Cc: Arnd Bergmann <arnd@arndb.de>
2014-07-23PCI: designware: Look for configuration space in 'reg', not 'ranges'Kishon Vijay Abraham I1-2/+15
The configuration address space has so far been specified in *ranges*, however it should be specified in *reg* making it a platform MEM resource. Hence used 'platform_get_resource_*' API to get configuration address space in the designware driver. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Mohit Kumar <mohit.kumar@st.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Cc: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Cc: Marek Vasut <marex@denx.de> Cc: Arnd Bergmann <arnd@arndb.de>
2014-07-22PCI: tegra: Add debugfs supportThierry Reding1-0/+118
Provide a debugfs file ("pcie/ports") that shows the current link status for each root port. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Stephen Warren <swarren@nvidia.com>
2014-07-22PCI: mvebu: Remove ARCH_KIRKWOOD dependencyAndrew Lunn1-1/+1
mach-kirkwood has been removed, now that kirkwood lives in mach-mvebu. ARCH_MVEBU is sufficient. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Jason Cooper <jason@lakedaemon.net>
2014-07-22s390/pci: fix kmsg componentGerald Schaefer1-2/+2
KMSG_COMPONENT has to be defined instead of COMPONENT. Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2014-07-21ACPI / hotplug / PCI: Fix sparse non static symbol warningWei Yongjun1-1/+1
Fixes the following sparse warning: drivers/pci/hotplug/acpiphp_glue.c:923:6: warning: symbol 'acpiphp_drop_bridge' was not declared. Should it be static? Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-20PCI: spear: Remove spear13xx_pcie_remove()Viresh Kumar1-12/+0
Following compilation warning occurs when compiled with: CONFIG_DEBUG_SECTION_MISMATCH=y WARNING: vmlinux.o(.init.data+0x3338): Section mismatch in reference from the variable spear13xx_pcie_driver to the function .exit.text:spear13xx_pcie_remove() This driver isn't allowed to unload, and so doesn't have a *_exit() routine. But it still has spear13xx_pcie_remove() marked with __exit. As this driver can't unload, .remove() would never be called, right? So get rid of it. Fixes: 51b66a6ce125 (PCI: spear: Add PCIe driver for ST Microelectronics SPEAr13xx) Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-20PCI: spear: Fix Section mismatch compilation warning for probe()Viresh Kumar1-1/+1
Following compilation warning occurs when compiled with: CONFIG_DEBUG_SECTION_MISMATCH=y WARNING: drivers/pci/host/built-in.o(.data+0xc0): Section mismatch in reference from the variable spear13xx_pcie_driver to the function .init.text:spear13xx_pcie_probe() Both .probe() and pcie_init() are marked with __init, but spear13xx_pcie_driver isn't. And so section mismatch. Fix it by marking spear13xx_pcie_driver with __initdata. Fixes: 51b66a6ce125 (PCI: spear: Add PCIe driver for ST Microelectronics SPEAr13xx) Reported-by: Olof Johansson <olof@lixom.net> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-20Merge tag 'samsung-cleanup' of ↵Olof Johansson1-2/+7
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup Merge "Samsung cleanup for v3.17" from Kukjin Kim: Most of them are for exynos SoCs, remove useless codes and update for PMU consolidation. - remove unnecessary header file in mach-exynos/pmu.c - remove unused code in mach-exynos/common.h - remove mach-exynos/regs-pmu.h dependency from PD - remove file path from comment section in mach-exynos - move SYSREG definitions into mach-exynos/regs-sys.h - add mapping PMU base address via DT for PMU cleanup - use staic in mach-exynos/common.h - update Samsung UART config options for low-level debug * tag 'samsung-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: EXYNOS: Add support for mapping PMU base address via DT ARM: EXYNOS: Remove "linux/bug.h" from pmu.c ARM: EXYNOS: Remove regs-pmu.h header dependency from pm_domain ARM: EXYNOS: Remove file path from comment section ARM: EXYNOS: Move SYSREG definition into sys-reg specific file ARM: EXYNOS: Make exynos machine_ops as static ARM: EXYNOS: Remove unused code in common.h ARM: debug: Update Samsung UART config options + Linux 3.16-rc5 Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-19Merge tag 'tegra-for-3.17-pcie-regulators' of ↵Olof Johansson1-61/+161
git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers Merge "ARM: tegra: rework PCIe regulators" from Thierry Reding: This branch reworks the set of regulators that the Tegra PCIe driver uses, so that the driver and DT bindings more correctly model what's really going on in HW. For backwards-compatibility the driver will fallback to using the old set of regulators if the new ones can't be found. I've made this a separate branch in case it needs to be pulled into the PCIe tree to resolve any conflicts. * tag 'tegra-for-3.17-pcie-regulators' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: ARM: tegra: Remove legacy PCIe power supply properties PCI: tegra: Remove deprecated power supply properties PCI: tegra: Implement accurate power supply scheme ARM: tegra: Add new PCIe regulator properties PCI: tegra: Overhaul regulator usage Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-18PCI: tegra: Implement accurate power supply schemeThierry Reding1-61/+161
The current description of power supplies doesn't match the hardware. Instead it's designed to support the needs of current designs, which will break as soon as a new design appears that cannot be described using the current assumptions. In order to fully support all possible future designs, all power supply inputs to the PCIe block need to be accurately described and separately configurable. Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2014-07-17ARM: tegra: Convert PMC to a driverThierry Reding1-1/+1
This commit converts the PMC support code to a platform driver. Because the boot process needs to call into this driver very early, also set up a minimal environment via an early initcall. Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-07-17ARM: tegra: Move includes to include/soc/tegraThierry Reding1-2/+3
In order to not clutter the include/linux directory with SoC specific headers, move the Tegra-specific headers out into a separate directory. Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-07-17Merge branches 'pci/host-generic', 'pci/host-mvebu', 'pci/host-rcar', ↵Bjorn Helgaas8-96/+92
'pci/host-tegra', 'pci/msi', 'pci/misc', 'pci/resource' and 'pci/virtualization' into next * pci/host-generic: PCI: generic: Fix GPL v2 license string typo * pci/host-mvebu: PCI: mvebu: Fix GPL v2 license string typo * pci/host-rcar: PCI: rcar: Fix GPL v2 license string typo * pci/host-tegra: PCI: tegra: Fix GPL v2 license string typo * pci/msi: PCI/MSI: Use irq_get_msi_desc() to simplify code PCI/MSI: Remove unused list access in __pci_restore_msix_state() PCI/MSI: Retrieve first MSI IRQ from msi_desc rather than pci_dev PCI/MSI: Remove unused function msi_remove_pci_irq_vectors() PCI/MSI: Add msi_setup_entry() to clean up MSI initialization * pci/misc: PCI: Configure ASPM when enabling device x86: don't exclude low BIOS area when allocating address space for non-PCI cards PCI: Add include guard to include/linux/pci_ids.h x86, ia64: Move EFI_FB vga_default_device() initialization to pci_vga_fixup() * pci/resource: PCI: Tidy resource assignment messages PCI: Return conventional error values from pci_revert_fw_address() PCI: Cleanup control flow PCI: Support BAR sizes up to 128GB PCI: Keep original resource if we fail to expand it * pci/virtualization: powerpc/pci: Remove duplicate logic PCI: Make resetting secondary bus logic common
2014-07-17PCI/MSI: Use irq_get_msi_desc() to simplify codeYijing Wang1-7/+5
Use irq_get_msi_desc() to get MSI IRQ related msi_desc directly instead of searching the dev->msi_list. Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-07-17PCI/MSI: Remove unused list access in __pci_restore_msix_state()Yijing Wang1-1/+0
In __pci_restore_msix_state(), we get the first element from msi_list, but we never use it. Remove this useless code. Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-07-17PCI/MSI: Retrieve first MSI IRQ from msi_desc rather than pci_devYijing Wang1-1/+1
Retrieve the first MSI IRQ to compute the MSI index from struct msi_desc rather than the struct pci_dev to avoid an additional memory access. Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-07-17PCI/MSI: Remove unused function msi_remove_pci_irq_vectors()Yijing Wang1-18/+0
msi_remove_pci_irq_vectors() is unused, so remove it. Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>