talos-obmc-linux/include/linux/acpi.h, branch dev-4.13-fsi

tty: pl011: fix initialization order of QDF2400 E44

2017-07-30T14:53:44+00:00

The work-around for Qualcomm Technologies QDF2400 Erratum 44 hinges on a global variable defined in the pl011 driver. The ACPI SPCR parsing code determines whether the work-around is needed, and if so, it changes the console name from "pl011" to "qdf2400_e44". The expectation is that the pl011 driver will implement the work-around when it sees the console name. The global variable qdf2400_e44_present is set when that happens. The problem is that work-around needs to be enabled when the pl011 driver probes, not when the console name is queried. However, sbsa_probe() is called before pl011_console_match(). The work-around appeared to work previously because the default console on QDF2400 platforms was always ttyAMA1. The first time sbsa_probe() is called (for ttyAMA0), qdf2400_e44_present is still false. Then pl011_console_match() is called, and it sets qdf2400_e44_present to true. All subsequent calls to sbsa_probe() enable the work-around. The solution is to move the global variable into spcr.c and let the pl011 driver query it during probe time. This works because all QDF2400 platforms require SPCR, so parse_spcr() will always be called. pl011_console_match still checks for the "qdf2400_e44" console name, but it doesn't do anything else special. Fixes: 5a0722b898f8 ("tty: pl011: use "qdf2400_e44" as the earlycon name for QDF2400 E44") Tested-by: Jeffrey Hugo Signed-off-by: Timur Tabi Signed-off-by: Greg Kroah-Hartman

Merge tag 'devprop-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2017-07-10T22:23:45+00:00

Pull device properties framework updates from Rafael Wysocki: "These mostly rearrange the device properties core code and add a few helper functions to it as a foundation for future work. Specifics: - Rearrange the core device properties code by moving the code specific to each supported platform configuration framework (ACPI, DT and build-in) into a separate file (Sakari Ailus). - Add helper functions for accessing device properties in a firmware-agnostic way (Sakari Ailus, Kieran Bingham)" * tag 'devprop-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: device property: Add fwnode_graph_get_port_parent device property: Add FW type agnostic fwnode_graph_get_remote_node device property: Introduce fwnode_device_is_available() device property: Move fwnode graph ops to firmware specific locations device property: Move FW type specific functionality to FW specific files ACPI: Constify argument to acpi_device_is_present()

Merge tag 'gpio-v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

2017-07-07T19:40:27+00:00

Pull GPIO updates from Linus Walleij: "This is the bulk of GPIO changes for the v4.13 series. Some administrativa: I have a slew of 8250 serial patches and the new IOT2040 serial+GPIO driver coming in through this tree, along with a whole bunch of Exar 8250 fixes. These are ACKed by Greg and also hit drivers/platform/* where they are ACKed by Andy Shevchenko. Speaking about drivers/platform/* there is also a bunch of ACPI stuff coming through that route, again ACKed by Andy. The MCP23S08 changes are coming in here as well. You already have the commits in your tree, so this is just a result of sharing an immutable branch between pin control and GPIO. Core: - Export add/remove for lookup tables so that modules can export GPIO descriptor tables. - Handle GPIO sleep states: it is now possible to flag that a GPIO line may loose its state during suspend/resume of the system to save power. This is used in the Wolfson Micro Arizona driver. - ACPI-based GPIO was tightened up a lot around the edges. - Use bitmap_fill() to speed up a loop. New drivers: - Exar XRA1403 SPI-based GPIO. - MVEBU driver now supports Armada 7K and 8K. - LP87565 PMIC GPIO. - Renesas R-CAR R8A7743 (RZ/G1M). - The new IOT2040 8250 serial/GPIO also comes in through this changeset. Substantial driver changes: - Seriously fix the Exar 8250 GPIO portions to work. - The MCP23S08 was moved out to a pin control driver. - Convert MEVEBU to use regmap for register access. - Drop Vulcan support from the Broadcom driver. - Serious cleanup and improvement of the mockup driver, giving us a better test coverage. Misc: - Lots of janitorial clean up. - A bunch of documentation fixes" * tag 'gpio-v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (70 commits) serial: exar: Add support for IOT2040 device gpio-exar/8250-exar: Make set of exported GPIOs configurable platform: Accept const properties serial: exar: Factor out platform hooks gpio-exar/8250-exar: Rearrange gpiochip parenthood gpio: exar: Fix iomap request gpio-exar/8250-exar: Do not even instantiate a GPIO device for Commtech cards serial: uapi: Add support for bus termination gpio: rcar: Add R8A7743 (RZ/G1M) support gpio: gpio-wcove: Fix GPIO control register offset calculation gpio: lp87565: Add support for GPIO gpio: dwapb: fix missing first irq for edgeboth irq type MAINTAINERS: Take maintainership for GPIO ACPI support gpio: exar: Fix reading of directions and values gpio: exar: Allocate resources on behalf of the platform device gpio-exar/8250-exar: Fix passing in of parent PCI device gpio: mockup: use devm_kcalloc() where applicable gpio: mockup: add myself as author gpio: mockup: improve the error message gpio: mockup: don't return magic numbers from probe() ...

device property: Move FW type specific functionality to FW specific files

2017-06-22T00:55:34+00:00

The device and fwnode property API supports Devicetree, ACPI and pset properties. The implementation of this functionality for each firmware type was embedded in the fwnode property core. Move it out to firmware type specific locations, making it easier to maintain. Depends-on: ("of: Move OF property and graph API from base.c to property.c") Signed-off-by: Sakari Ailus Reviewed-by: Mika Westerberg Acked-by: Rob Herring Signed-off-by: Rafael J. Wysocki

acpi: always include uuid.h

2017-06-08T07:03:33+00:00

Without this the build will fail for !CONFIG_ACPI builds on x86. Fixes: 94116f81 ("ACPI: Switch to use generic guid_t in acpi_evaluate_dsm()") Signed-off-by: Christoph Hellwig

ACPI: Switch to use generic guid_t in acpi_evaluate_dsm()

2017-06-07T10:20:49+00:00

acpi_evaluate_dsm() and friends take a pointer to a raw buffer of 16 bytes. Instead we convert them to use guid_t type. At the same time we convert current users. acpi_str_to_uuid() becomes useless after the conversion and it's safe to get rid of it. Acked-by: Rafael J. Wysocki Cc: Borislav Petkov Acked-by: Dan Williams Cc: Amir Goldstein Reviewed-by: Jarkko Sakkinen Reviewed-by: Jani Nikula Acked-by: Jani Nikula Cc: Ben Skeggs Acked-by: Benjamin Tissoires Acked-by: Joerg Roedel Acked-by: Adrian Hunter Cc: Yisen Zhuang Acked-by: Bjorn Helgaas Acked-by: Felipe Balbi Acked-by: Mathias Nyman Reviewed-by: Heikki Krogerus Acked-by: Mark Brown Signed-off-by: Andy Shevchenko Signed-off-by: Christoph Hellwig

acpi, nfit: Switch to use new generic UUID API

2017-06-05T17:42:02+00:00

There are new types and helpers that are supposed to be used in new code. As a preparation to get rid of legacy types and API functions do the conversion here. Reviewed-by: Dan Williams Signed-off-by: Andy Shevchenko Signed-off-by: Christoph Hellwig

gpio: acpi: Split out acpi_gpio_get_irq_resource() helper

2017-05-29T09:22:48+00:00

The helper does retrieve pointer to struct acpi_resource_gpio from struct acpi_resource if it represents GpioInt() resource. It will be used by PNP code later on. Signed-off-by: Andy Shevchenko Reviewed-by: Mika Westerberg Signed-off-by: Linus Walleij

Merge tag 'iommu-updates-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

2017-05-09T22:15:47+00:00

Pull IOMMU updates from Joerg Roedel: - code optimizations for the Intel VT-d driver - ability to switch off a previously enabled Intel IOMMU - support for 'struct iommu_device' for OMAP, Rockchip and Mediatek IOMMUs - header optimizations for IOMMU core code headers and a few fixes that became necessary in other parts of the kernel because of that - ACPI/IORT updates and fixes - Exynos IOMMU optimizations - updates for the IOMMU dma-api code to bring it closer to use per-cpu iova caches - new command-line option to set default domain type allocated by the iommu core code - another command line option to allow the Intel IOMMU switched off in a tboot environment - ARM/SMMU: TLB sync optimisations for SMMUv2, Support for using an IDENTITY domain in conjunction with DMA ops, Support for SMR masking, Support for 16-bit ASIDs (was previously broken) - various other small fixes and improvements * tag 'iommu-updates-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (63 commits) soc/qbman: Move dma-mapping.h include to qman_priv.h soc/qbman: Fix implicit header dependency now causing build fails iommu: Remove trace-events include from iommu.h iommu: Remove pci.h include from trace/events/iommu.h arm: dma-mapping: Don't override dma_ops in arch_setup_dma_ops() ACPI/IORT: Fix CONFIG_IOMMU_API dependency iommu/vt-d: Don't print the failure message when booting non-kdump kernel iommu: Move report_iommu_fault() to iommu.c iommu: Include device.h in iommu.h x86, iommu/vt-d: Add an option to disable Intel IOMMU force on iommu/arm-smmu: Return IOVA in iova_to_phys when SMMU is bypassed iommu/arm-smmu: Correct sid to mask iommu/amd: Fix incorrect error handling in amd_iommu_bind_pasid() iommu: Make iommu_bus_notifier return NOTIFY_DONE rather than error code omap3isp: Remove iommu_group related code iommu/omap: Add iommu-group support iommu/omap: Make use of 'struct iommu_device' iommu/omap: Store iommu_dev pointer in arch_data iommu/omap: Move data structures to omap-iommu.h iommu/omap: Drop legacy-style device support ...

Merge tag 'gpio-v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

2017-05-04T19:05:32+00:00

Pull GPIO updates from Linus Walleij: "This is the bulk of GPIO changes for the v4.12 kernel cycle. Core changes: - Return NULL from gpiod_get_optional() when GPIOLIB is disabled. This was a much discussed change. It affects use cases where people write drivers that might or might not be using GPIO resources. I have decided that this is the lesser evil right now. - Make gpiod_count() behave consistently across different hardware descriptions. - Fix the syntax around open drain/open source to not infer active high/low semantics. New drivers: - A new single-register fixed-direction framework driver for hardware that have lines controlled by a single register that just work in one direction (out or in), including IRQ support. - Support the Fintek F71889A GPIO SuperIO controller. - Support the National NI 169445 MMIO GPIO. - Support for the X-Gene derivative of the DWC GPIO controller - Support for the Rohm BD9571MWV-M PMIC GPIO controller. - Refactor the Gemini GPIO driver to a generic Faraday FTGPIO driver and replace both the Gemini and the Moxa ART custom drivers with this driver. Driver improvements: - A whole slew of drivers have their spinlocks chaned to raw spinlocks as they provide irqchips, and thus we are progressing on realtime compliance. - Use devm_irq_alloc_descs() in a slew of drivers, getting managed resources. - Support for the embedded PWM controller inside the MVEBU driver. - Debounce, open source and open drain support for the Aspeed driver. - Misc smaller fixes like spelling and syntax and whatnot" * tag 'gpio-v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (77 commits) gpio: f7188x: Add a missing break gpio: omap: return error if requested debounce time is not possible gpio: Add ROHM BD9571MWV-M PMIC GPIO driver gpio: gpio-wcove: fix GPIO IRQ status mask gpio: DT bindings, move tca9554 from pcf857x to pca953x gpio: move tca9554 from pcf857x to pca953x gpio: arizona: Correct check whether the pin is an input gpio: Add XRA1403 DTS binding documentation dt-bindings: add exar to vendor prefixes list gpio: gpio-wcove: fix irq pending status bit width gpio: dwapb: use dwapb_read instead of readl_relaxed gpio: aspeed: Add open-source and open-drain support gpio: aspeed: Add debounce support gpio: aspeed: dt: Add optional clocks property gpio: aspeed: dt: Fix description alignment in bindings document gpio: mvebu: Add limited PWM support gpio: Use unsigned int for interrupt numbers gpio: f7188x: Add F71889A GPIO support. gpio: core: Decouple open drain/source flag with active low/high gpio: arizona: Correct handling for reading input GPIOs ...