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6080e0cff2
315 Commits
Author | SHA1 | Message | Date | |
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Tomas Winkler
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6080e0cff2 |
mei: docs: update mei client bus documentation.
The mei client bus API has changed significantly from time it was documented, and had required update. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Tomas Winkler
|
815d0f26c1 |
mei: docs: move iamt docs to a iamt.rst file
Move intel amt documentation to a seprate file. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Tomas Winkler
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7e527e11d6 |
mei: docs: move documentation under driver-api
Move mei driver documentation under Documentation/driver-api/ Perform some minimal formating changes to produce correct sphinx rendering and add index.rst Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Linus Torvalds
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8148c17b17 |
This is the bulk of the GPIO changes for the v5.2 kernel cycle:
Core changes: - The gpiolib MMIO driver has been enhanced to handle two direction registers, i.e. one register to set lines as input and one register to set lines as output. It turns out some silicon engineer thinks the ability to configure a line as input and output at the same time makes sense, this can be debated but includes a lot of analog electronics reasoning, and the registers are there and need to be handled consistently. Unsurprisingly, we enforce the lines to be either inputs or outputs in such schemes. - Send in the proper argument value to .set_config() dispatched to the pin control subsystem. Nobody used it before, now someone does, so fix it to work as expected. - The ACPI gpiolib portions can now handle pin bias setting (pull up or pull down). This has been in the ACPI spec for years and we finally have it properly integrated with Linux GPIOs. It was based on an observation from Andy Schevchenko that Thomas Petazzoni's changes to the core for biasing the PCA950x GPIO expander actually happen to fit hand-in-glove with what the ACPI core needed. Such nice synergies happen sometimes. New drivers: - A new driver for the Mellanox BlueField GPIO controller. This is using 64bit MMIO registers and can configure lines as inputs and outputs at the same time and after improving the MMIO library we handle it just fine. Interesting. - A new IXP4xx proper gpiochip driver with hierarchical interrupts should be coming in from the ARM SoC tree as well. Driver enhancements: - The PCA053x driver handles the CAT9554 GPIO expander. - The PCA053x driver handles the NXP PCAL6416 GPIO expander. - Wake-up support on PCA053x GPIO lines. - OMAP now does a nice asynchronous IRQ handling on wake-ups by letting everything wake up on edges, and this makes runtime PM work as expected too. Misc: - Several cleanups such as devres fixes. - Get rid of some languager comstructs that cause problems when compiling with LLVMs clang. - Documentation review and update. -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJc1olZAAoJEEEQszewGV1zEU4P/RmTf3hG8xmNPS3MDTmR6gAy /YJOXjXBf3CD/dmEAyyaNLnUQismrtRNvHSoEGbno7gkU+htzp9UfUJkj6+HIXs2 RpF+Hi78HzZNDxGWuBLu6OZolpmBtx+sRKOhHk/XfNS45qd1FgXWDuulzsYa9Xsr hYMXdtdv9wY/vcc68q1rtKAbzlu5ZNCa3Zj1iNOr/XQt3Nl2BW66hGLgjK4mOvgx fJy4rFXuDIMfDvo69U1Opz2b39sfE7XMhfZS/MOgg4yEV9zGRgDoI1tyMcTqGb8Q 8LQbp5dXkP+3dJQB8tgbu3Vk4WC1Rd/pmIli5sMgsk0HYQ6XegfT6HJKozSmwN9r 0s8jKlrocWZvdPo1aJwQgtRS56t2rFWcrcRye8bLqxkkW5cYIq9CwkE8USwB31Kv PFpoOwRuCtj0gkCxf7WIEcC5NAkYPow3K1KPdk3E0Si6I3pj0NqqlaAD0JAlkC2V aPq3xbTuFCAdmcADEt2Z+dUJ7WIs5Y9oQgosMAx+A2AD4K3QDBMu3pZsT6SCu4XZ mK0eWJi9/CvOj/s7bA0BEJVxQA+p8KYsNRBOULg/8aAOqGcLnSydQjqrxDTE8YrL xmmRG7i7ht0B9CchZuIB5hqdvjbCgvcVa5OnCUDfLxE0GdCx8iJ9y9OrsMXbabYq 8FcPDo1N38cTYLnLqvKI =rhto -----END PGP SIGNATURE----- Merge tag 'gpio-v5.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull gpio updates from Linus Walleij: "This is the bulk of the GPIO changes for the v5.2 kernel cycle. A bit later than usual because I was ironing out my own mistakes. I'm holding some stuff back for the next kernel as a result, and this should be a healthy and well tested batch. Core changes: - The gpiolib MMIO driver has been enhanced to handle two direction registers, i.e. one register to set lines as input and one register to set lines as output. It turns out some silicon engineer thinks the ability to configure a line as input and output at the same time makes sense, this can be debated but includes a lot of analog electronics reasoning, and the registers are there and need to be handled consistently. Unsurprisingly, we enforce the lines to be either inputs or outputs in such schemes. - Send in the proper argument value to .set_config() dispatched to the pin control subsystem. Nobody used it before, now someone does, so fix it to work as expected. - The ACPI gpiolib portions can now handle pin bias setting (pull up or pull down). This has been in the ACPI spec for years and we finally have it properly integrated with Linux GPIOs. It was based on an observation from Andy Schevchenko that Thomas Petazzoni's changes to the core for biasing the PCA950x GPIO expander actually happen to fit hand-in-glove with what the ACPI core needed. Such nice synergies happen sometimes. New drivers: - A new driver for the Mellanox BlueField GPIO controller. This is using 64bit MMIO registers and can configure lines as inputs and outputs at the same time and after improving the MMIO library we handle it just fine. Interesting. - A new IXP4xx proper gpiochip driver with hierarchical interrupts should be coming in from the ARM SoC tree as well. Driver enhancements: - The PCA053x driver handles the CAT9554 GPIO expander. - The PCA053x driver handles the NXP PCAL6416 GPIO expander. - Wake-up support on PCA053x GPIO lines. - OMAP now does a nice asynchronous IRQ handling on wake-ups by letting everything wake up on edges, and this makes runtime PM work as expected too. Misc: - Several cleanups such as devres fixes. - Get rid of some languager comstructs that cause problems when compiling with LLVMs clang. - Documentation review and update" * tag 'gpio-v5.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (85 commits) gpio: Update documentation docs: gpio: convert docs to ReST and rename to *.rst gpio: sch: Remove write-only core_base gpio: pxa: Make two symbols static gpiolib: acpi: Respect pin bias setting gpiolib: acpi: Add acpi_gpio_update_gpiod_lookup_flags() helper gpiolib: acpi: Set pin value, based on bias, more accurately gpiolib: acpi: Change type of dflags gpiolib: Introduce GPIO_LOOKUP_FLAGS_DEFAULT gpiolib: Make use of enum gpio_lookup_flags consistent gpiolib: Indent entry values of enum gpio_lookup_flags gpio: pca953x: add support for pca6416 dt-bindings: gpio: pca953x: document the nxp,pca6416 gpio: pca953x: add pcal6416 to the of_device_id table gpio: gpio-omap: Remove conditional pm_runtime handling for GPIO interrupts gpio: gpio-omap: configure edge detection for level IRQs for idle wakeup tracing: stop making gpio tracing configurable gpio: pca953x: Configure wake-up path when wake-up is enabled gpio: of: Optimize quirk checks gpio: mmio: Drop bgpio_dir_inverted ... |
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Linus Torvalds
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a2d635decb |
drm pull request for 5.2
-----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJc04M6AAoJEAx081l5xIa+SJgP/0uIgIOM53vPpydgmr+2IEHF jbDqrd+mipgNriRVHjDsWdUHCUNtyhB7YEBCMrj3mY0rRFI7FlQQf4lOwYGoHiKP 4JZg4kwC37997lFXl1uabGj3DmJLtxKL2/D15zCH/uLe+2EDzWznP6NVdFT3WK0P YKZQCWT19PWSsLoBRPutWxkmop4AYvkqE0a6vXUlJlFYZK3Bbytx6/179uWKfiX5 ZkKEEtx1XiDAvcp5gBb6PISurycrBY0e/bkPBnK3ES5vawMbTU5IrmWOrQ4D8yOd z9qOVZawZ6+b2XBDgBWjQ9bM7I5R7Il1q/LglYEaFI9+wHUnlUdDSm6ft5/5BiCZ fqgkh5Bj2iEsajbSsacoljMOpxpYPqj63mqc+7fAGXF34V+B+9U1bpt8kCbMKowf 7Abb7IuiCR6vLDapjP6VqTMvdQ4O466OEAN83ULGFTdmMqYYH4AxaIwc+xcAk/aP RNq7/RHhh4FRynRAj9fCkGlF3ArnM88gLINwWuEQq4SClWGcvdw7eaHpwWo77c4g iccCnTLqSIg5pDVu07AQzzBlW6KulWxh5o72x+Xx+EXWdYUDHQ1SlNs11bSNUBV1 5MkrzY2GuD+NFEjsXJEDIPOr40mQOyJCXnxq8nXPsz/hD9kHeJPvWn3J3eVKyb5B Z6/knNqM0BDn3SaYR/rD =YFiQ -----END PGP SIGNATURE----- Merge tag 'drm-next-2019-05-09' of git://anongit.freedesktop.org/drm/drm Pull drm updates from Dave Airlie: "This has two exciting community drivers for ARM Mali accelerators. Since ARM has never been open source friendly on the GPU side of the house, the community has had to create open source drivers for the Mali GPUs. Lima covers the older t4xx and panfrost the newer 6xx/7xx series. Well done to all involved and hopefully this will help ARM head in the right direction. There is also now the ability if you don't have any of the legacy drivers enabled (pre-KMS) to remove all the pre-KMS support code from the core drm, this saves 10% or so in codesize on my machine. i915 also enable Icelake/Elkhart Lake Gen11 GPUs by default, vboxvideo moves out of staging. There are also some rcar-du patches which crossover with media tree but all should be acked by Mauro. Summary: uapi changes: - Colorspace connector property - fourcc - new YUV formts - timeline sync objects initially merged - expose FB_DAMAGE_CLIPS to atomic userspace new drivers: - vboxvideo: moved out of staging - aspeed: ASPEED SoC BMC chip display support - lima: ARM Mali4xx GPU acceleration driver support - panfrost: ARM Mali6xx/7xx Midgard/Bitfrost acceleration driver support core: - component helper docs - unplugging fixes - devm device init - MIPI/DSI rate control - shmem backed gem objects - connector, display_info, edid_quirks cleanups - dma_buf fence chain support - 64-bit dma-fence seqno comparison fixes - move initial fb config code to core - gem fence array helpers for Lima - ability to remove legacy support code if no drivers requires it (removes 10% of drm.ko size) - lease fixes ttm: - unified DRM_FILE_PAGE_OFFSET handling - Account for kernel allocations in kernel zone only panel: - OSD070T1718-19TS panel support - panel-tpo-td028ttec1 backlight support - Ronbo RB070D30 MIPI/DSI - Feiyang FY07024DI26A30-D MIPI-DSI panel - Rocktech jh057n00900 MIPI-DSI panel i915: - Comet Lake (Gen9) PCI IDs - Updated Icelake PCI IDs - Elkhartlake (Gen11) support - DP MST property addtions - plane and watermark fixes - Icelake port sync and VEBOX disable fixes - struct_mutex usage reduction - Icelake gamma fix - GuC reset fixes - make mmap more asynchronous - sound display power well race fixes - DDI/MIPI-DSI clocks for Icelake - Icelake RPS frequency changing support - Icelake workarounds amdgpu: - Use HMM for userptr - vega20 experimental smu11 support - RAS support for vega20 - BACO support for vega12 + fixes for vega20 - reworked IH interrupt handling - amdkfd RAS support - Freesync improvements - initial timeline sync object support - DC Z ordering fixes - NV12 planes support - colorspace properties for planes= - eDP opts if eDP already initialized nouveau: - misc fixes etnaviv: - misc fixes msm: - GPU zap shader support expansion - robustness ABI addition exynos: - Logging cleanups tegra: - Shared reset fix - CPU cache maintenance fix cirrus: - driver rewritten using simple helpers meson: - G12A support vmwgfx: - Resource dirtying management improvements - Userspace logging improvements virtio: - PRIME fixes rockchip: - rk3066 hdmi support sun4i: - DSI burst mode support vc4: - load tracker to detect underflow v3d: - v3d v4.2 support malidp: - initial Mali D71 support in komeda driver tfp410: - omap related improvement omapdrm: - drm bridge/panel support - drop some omap specific panels rcar-du: - Display writeback support" * tag 'drm-next-2019-05-09' of git://anongit.freedesktop.org/drm/drm: (1507 commits) drm/msm/a6xx: No zap shader is not an error drm/cma-helper: Fix drm_gem_cma_free_object() drm: Fix timestamp docs for variable refresh properties. drm/komeda: Mark the local functions as static drm/komeda: Fixed warning: Function parameter or member not described drm/komeda: Expose bus_width to Komeda-CORE drm/komeda: Add sysfs attribute: core_id and config_id drm: add non-desktop quirk for Valve HMDs drm/panfrost: Show stored feature registers drm/panfrost: Don't scream about deferred probe drm/panfrost: Disable PM on probe failure drm/panfrost: Set DMA masks earlier drm/panfrost: Add sanity checks to submit IOCTL drm/etnaviv: initialize idle mask before querying the HW db drm: introduce a capability flag for syncobj timeline support drm: report consistent errors when checking syncobj capibility drm/nouveau/nouveau: forward error generated while resuming objects tree drm/nouveau/fb/ramgk104: fix spelling mistake "sucessfully" -> "successfully" drm/nouveau/i2c: Disable i2c bus access after ->fini() drm/nouveau: Remove duplicate ACPI_VIDEO_NOTIFY_PROBE definition ... |
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Linus Torvalds
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8c79f4cd44 |
A reasonably busy cycle for docs, including:
- Lots of work on the Chinese and Italian translations - Some license-rules clarifications from Christoph - Various build-script fixes - A new document on memory models - RST conversion of the live-patching docs - The usual collection of typo fixes and corrections. -----BEGIN PGP SIGNATURE----- iQFDBAABCAAtFiEEIw+MvkEiF49krdp9F0NaE2wMflgFAlzSBFkPHGNvcmJldEBs d24ubmV0AAoJEBdDWhNsDH5YUDgIAIn+I0Wjv/vkuh5SKwAmz2wZBf46FCICz7Vg jePmhd1GQ3K9k/xzIKMoaJOipAl+IXT4AnGa9eu+9Xm+D6HejASvtt/uTce4+qPi 9VLu7GmbtQQ0imRi4jjitenrebQXSKudAYbH+/bz7ycH7twWVJWKNLNQ8im9U5Ul LRXQhRsYc2SwJ4mGOGTrqZkb69qkiOy0dQFGKbSM3ipHs/CQy8XMhlY/7aAh7t9N SmKyH341s4Z/dRZIpoSx2QOfSp7njwTw7hxrnOq5unB82u2zrYvVFGxp5kzfQIyC B/q26TG5hVNGH/37/+yOoziyP3Ma8IuF5W0zcg9DbmIi0Gdvg7s= =4Zhc -----END PGP SIGNATURE----- Merge tag 'docs-5.2' of git://git.lwn.net/linux Pull documentation updates from Jonathan Corbet: "A reasonably busy cycle for docs, including: - Lots of work on the Chinese and Italian translations - Some license-rules clarifications from Christoph - Various build-script fixes - A new document on memory models - RST conversion of the live-patching docs - The usual collection of typo fixes and corrections" * tag 'docs-5.2' of git://git.lwn.net/linux: (140 commits) docs/livepatch: Unify style of livepatch documentation in the ReST format docs: livepatch: convert docs to ReST and rename to *.rst scripts/documentation-file-ref-check: detect broken :doc:`foo` scripts/documentation-file-ref-check: don't parse Next/ dir LICENSES: Rename other to deprecated LICENSES: Clearly mark dual license only licenses docs: Don't reference the ZLib license in license-rules.rst docs/vm: Minor editorial changes in the THP and hugetlbfs docs/vm: add documentation of memory models doc:it_IT: translation alignment doc: fix typo in PGP guide dontdiff: update with Kconfig build artifacts docs/zh_CN: fix typos in 1.Intro.rst file docs/zh_CN: redirect CoC docs to Chinese version doc: mm: migration doesn't use FOLL_SPLIT anymore docs: doc-guide: remove the extension from .rst files doc: kselftest: Fix KBUILD_OUTPUT usage instructions docs: trace: fix some Sphinx warnings docs: speculation.txt: mark example blocks as such docs: ntb.txt: add blank lines to clean up some Sphinx warnings ... |
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Linus Torvalds
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e0dccbdf5a |
Staging / IIO driver patches for 5.2-rc1
Here is the big staging and iio driver update for 5.2-rc1. Lots of tiny fixes all over the staging and IIO driver trees here, along with some new IIO drivers. Also we ended up deleting two drivers, making this pull request remove a few hundred thousand lines of code, always a nice thing to see. Both of the drivers removed have been replaced with "real" drivers in their various subsystem directories, and they will be coming to you from those locations during this merge window. There are some core vt/selection changes in here, that was due to some cleanups needed for the speakup fixes. Those have all been acked by the various subsystem maintainers (i.e. me), so those are ok. We also added a few new drivers, for some odd hardware, giving new developers plenty to work on with basic coding style cleanups to come in the near future. Other than that, nothing unusual here. All of these have been in linux-next for a while with no reported issues, other than an odd gcc warning for one of the new drivers that should be fixed up soon. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXNHGMQ8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ynQRACgwtlC6DFsEFwCplYxQXP5uzuIVTMAoJ61xzC0 Qim7K31f5ulaa3GJuhzo =zEY5 -----END PGP SIGNATURE----- Merge tag 'staging-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging / IIO driver updates from Greg KH: "Here is the big staging and iio driver update for 5.2-rc1. Lots of tiny fixes all over the staging and IIO driver trees here, along with some new IIO drivers. The "counter" subsystem was added in here as well, as it is needed by the IIO drivers and subsystem. Also we ended up deleting two drivers, making this pull request remove a few hundred thousand lines of code, always a nice thing to see. Both of the drivers removed have been replaced with "real" drivers in their various subsystem directories, and they will be coming to you from those locations during this merge window. There are some core vt/selection changes in here, that was due to some cleanups needed for the speakup fixes. Those have all been acked by the various subsystem maintainers (i.e. me), so those are ok. We also added a few new drivers, for some odd hardware, giving new developers plenty to work on with basic coding style cleanups to come in the near future. Other than that, nothing unusual here. All of these have been in linux-next for a while with no reported issues, other than an odd gcc warning for one of the new drivers that should be fixed up soon" [ I fixed up the warning myself - Linus ] * tag 'staging-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (663 commits) staging: kpc2000: kpc_spi: Fix build error for {read,write}q Staging: rtl8192e: Remove extra space before break statement Staging: rtl8192u: ieee80211: Fix if-else indentation warning Staging: rtl8192u: ieee80211: Fix indentation errors by removing extra spaces staging: most: cdev: fix chrdev_region leak in mod_exit staging: wlan-ng: Fix improper SPDX comment style staging: rtl8192u: ieee80211: Resolve ERROR reported by checkpatch staging: vc04_services: bcm2835-camera: Compress two lines into one line staging: rtl8723bs: core: Use !x in place of NULL comparison. staging: rtl8723bs: core: Prefer using the BIT Macro. staging: fieldbus: anybus-s: fix wait_for_completion_timeout return handling staging: kpc2000: fix up build problems with readq() staging: rtlwifi: move remaining phydm .h files staging: rtlwifi: strip down phydm .h files staging: rtlwifi: delete the staging driver staging: fieldbus: anybus-s: rename bus id field to avoid confusion staging: fieldbus: anybus-s: keep device bus id in bus endianness Staging: sm750fb: Change *array into *const array staging: rtl8192u: ieee80211: Fix spelling mistake staging: rtl8192u: ieee80211: Replace bit shifting with BIT macro ... |
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Linus Walleij
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0fbee1df20 |
gpio: Update documentation
Strictify the language a bit, move things around, make proper headings, mention pull-up and pull-down, expand unreadable acronyms etc. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> |
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Linus Torvalds
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8f5e823f91 |
Power management updates for 5.2-rc1
- Fix the handling of Performance and Energy Bias Hint (EPB) on Intel processors and expose it to user space via sysfs to avoid having to access it through the generic MSR I/F (Rafael Wysocki). - Improve the handling of global turbo changes made by the platform firmware in the intel_pstate driver (Rafael Wysocki). - Convert some slow-path static_cpu_has() callers to boot_cpu_has() in cpufreq (Borislav Petkov). - Fix the frequency calculation loop in the armada-37xx cpufreq driver (Gregory CLEMENT). - Fix possible object reference leaks in multuple cpufreq drivers (Wen Yang). - Fix kerneldoc comment in the centrino cpufreq driver (dongjian). - Clean up the ACPI and maple cpufreq drivers (Viresh Kumar, Mohan Kumar). - Add support for lx2160a and ls1028a to the qoriq cpufreq driver (Vabhav Sharma, Yuantian Tang). - Fix kobject memory leak in the cpufreq core (Viresh Kumar). - Simplify the IOwait boosting in the schedutil cpufreq governor and rework the TSC cpufreq notifier on x86 (Rafael Wysocki). - Clean up the cpufreq core and statistics code (Yue Hu, Kyle Lin). - Improve the cpufreq documentation, add SPDX license tags to some PM documentation files and unify copyright notices in them (Rafael Wysocki). - Add support for "CPU" domains to the generic power domains (genpd) framework and provide low-level PSCI firmware support for that feature (Ulf Hansson). - Rearrange the PSCI firmware support code and add support for SYSTEM_RESET2 to it (Ulf Hansson, Sudeep Holla). - Improve genpd support for devices in multiple power domains (Ulf Hansson). - Unify target residency for the AFTR and coupled AFTR states in the exynos cpuidle driver (Marek Szyprowski). - Introduce new helper routine in the operating performance points (OPP) framework (Andrew-sh.Cheng). - Add support for passing on-die termination (ODT) and auto power down parameters from the kernel to Trusted Firmware-A (TF-A) to the rk3399_dmc devfreq driver (Enric Balletbo i Serra). - Add tracing to devfreq (Lukasz Luba). - Make the exynos-bus devfreq driver suspend all devices on system shutdown (Marek Szyprowski). - Fix a few minor issues in the devfreq subsystem and clean it up somewhat (Enric Balletbo i Serra, MyungJoo Ham, Rob Herring, Saravana Kannan, Yangtao Li). - Improve system wakeup diagnostics (Stephen Boyd). - Rework filesystem sync messages emitted during system suspend and hibernation (Harry Pan). -----BEGIN PGP SIGNATURE----- iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAlzQEwUSHHJqd0Byand5 c29ja2kubmV0AAoJEILEb/54YlRxxXwP/jrxikIXdCOV3CJVioV0NetyebwlOqYp UsIA7lQBfZ/DY6dHw/oKuAT9LP01vcFg6XGe83Alkta9qczR5KZ/MYHFNSZXjXjL kEvIMBCS/oykaBuW+Xn9am8Ke3Yq/rBSTKWVom3vzSQY0qvZ9GBwPDrzw+k63Zhz P3afB4ThyY0e9ftgw4HvSSNm13Kn0ItUIQOdaLatXMMcPqP5aAdnUma5Ibinbtpp rpTHuHKYx7MSjaCg6wl3kKTJeWbQP4wYO2ISZqH9zEwQgdvSHeFAvfPKTegUkmw9 uUsQnPD1JvdglOKovr2muehD1Ur+zsjKDf2OKERkWsWXHPyWzA/AqaVv1mkkU++b KaWaJ9pE86kGlJ3EXwRbGfV0dM5rrl+dUUQW6nPI1XJnIOFlK61RzwAbqI26F0Mz AlKxY4jyPLcM3SpQz9iILqyzHQqB67rm29XvId/9scoGGgoqEI4S+v6LYZqI3Vx6 aeSRu+Yof7p5w4Kg5fODX+HzrtMnMrPmLUTXhbExfsYZMi7hXURcN6s+tMpH0ckM 4yiIpnNGCKUSV4vxHBm8XJdAuUnR4Vcz++yFslszgDVVvw5tkvF7SYeHZ6HqcQVm af9HdWzx3qajs/oyBwdRBedZYDnP1joC5donBI2ofLeF33NA7TEiPX8Zebw8XLkv fNikssA7PGdv =nY9p -----END PGP SIGNATURE----- Merge tag 'pm-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: "These fix the (Intel-specific) Performance and Energy Bias Hint (EPB) handling and expose it to user space via sysfs, fix and clean up several cpufreq drivers, add support for two new chips to the qoriq cpufreq driver, fix, simplify and clean up the cpufreq core and the schedutil governor, add support for "CPU" domains to the generic power domains (genpd) framework and provide low-level PSCI firmware support for that feature, fix the exynos cpuidle driver and fix a couple of issues in the devfreq subsystem and clean it up. Specifics: - Fix the handling of Performance and Energy Bias Hint (EPB) on Intel processors and expose it to user space via sysfs to avoid having to access it through the generic MSR I/F (Rafael Wysocki). - Improve the handling of global turbo changes made by the platform firmware in the intel_pstate driver (Rafael Wysocki). - Convert some slow-path static_cpu_has() callers to boot_cpu_has() in cpufreq (Borislav Petkov). - Fix the frequency calculation loop in the armada-37xx cpufreq driver (Gregory CLEMENT). - Fix possible object reference leaks in multuple cpufreq drivers (Wen Yang). - Fix kerneldoc comment in the centrino cpufreq driver (dongjian). - Clean up the ACPI and maple cpufreq drivers (Viresh Kumar, Mohan Kumar). - Add support for lx2160a and ls1028a to the qoriq cpufreq driver (Vabhav Sharma, Yuantian Tang). - Fix kobject memory leak in the cpufreq core (Viresh Kumar). - Simplify the IOwait boosting in the schedutil cpufreq governor and rework the TSC cpufreq notifier on x86 (Rafael Wysocki). - Clean up the cpufreq core and statistics code (Yue Hu, Kyle Lin). - Improve the cpufreq documentation, add SPDX license tags to some PM documentation files and unify copyright notices in them (Rafael Wysocki). - Add support for "CPU" domains to the generic power domains (genpd) framework and provide low-level PSCI firmware support for that feature (Ulf Hansson). - Rearrange the PSCI firmware support code and add support for SYSTEM_RESET2 to it (Ulf Hansson, Sudeep Holla). - Improve genpd support for devices in multiple power domains (Ulf Hansson). - Unify target residency for the AFTR and coupled AFTR states in the exynos cpuidle driver (Marek Szyprowski). - Introduce new helper routine in the operating performance points (OPP) framework (Andrew-sh.Cheng). - Add support for passing on-die termination (ODT) and auto power down parameters from the kernel to Trusted Firmware-A (TF-A) to the rk3399_dmc devfreq driver (Enric Balletbo i Serra). - Add tracing to devfreq (Lukasz Luba). - Make the exynos-bus devfreq driver suspend all devices on system shutdown (Marek Szyprowski). - Fix a few minor issues in the devfreq subsystem and clean it up somewhat (Enric Balletbo i Serra, MyungJoo Ham, Rob Herring, Saravana Kannan, Yangtao Li). - Improve system wakeup diagnostics (Stephen Boyd). - Rework filesystem sync messages emitted during system suspend and hibernation (Harry Pan)" * tag 'pm-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (72 commits) cpufreq: Fix kobject memleak cpufreq: armada-37xx: fix frequency calculation for opp cpufreq: centrino: Fix centrino_setpolicy() kerneldoc comment cpufreq: qoriq: add support for lx2160a x86: tsc: Rework time_cpufreq_notifier() PM / Domains: Allow to attach a CPU via genpd_dev_pm_attach_by_id|name() PM / Domains: Search for the CPU device outside the genpd lock PM / Domains: Drop unused in-parameter to some genpd functions PM / Domains: Use the base device for driver_deferred_probe_check_state() cpufreq: qoriq: Add ls1028a chip support PM / Domains: Enable genpd_dev_pm_attach_by_id|name() for single PM domain PM / Domains: Allow OF lookup for multi PM domain case from ->attach_dev() PM / Domains: Don't kfree() the virtual device in the error path cpufreq: Move ->get callback check outside of __cpufreq_get() PM / Domains: remove unnecessary unlikely() cpufreq: Remove needless bios_limit check in show_bios_limit() drivers/cpufreq/acpi-cpufreq.c: This fixes the following checkpatch warning firmware/psci: add support for SYSTEM_RESET2 PM / devfreq: add tracing for scheduling work trace: events: add devfreq trace event file ... |
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Linus Torvalds
|
59df1c2bde |
ACPI updates for 5.2-rc1
- Convert the ACPI documentation in the kernel source tree to the .rst format and split it into the admin guide, driver API and firmware guide parts (Changbin Du). - Add a PRP0001 usage example to the ACPI documentation (Thomas Preston). - Switch over the users of the acpi_dev_get_first_match_name() library function which turned out to be problematic to a new, better one called acpi_dev_get_first_match_dev() (Andy Shevchenko, YueHaibing). - Update the ACPICA code in the kernel to upstream release 20190405 including: * Null pointer dereference check in acpi_ns_delete_node() (Erik Schmauss). * Multiple macro and function name changes (Bob Moore). * Predefined operation region name fix (Erik Schmauss). - Fix hibernation issue on systems using the Baytrail and Cherrytrail Intel SoCs introduced during the 4.20 development cycle (Hans de Goede). - Add Sony VPCEH3U1E to the backlight quirk list (Zhang Rui). - Fix button handling during system resume (Zhang Rui). - Add a device PM diagnostic message (Rafael Wysocki). - Clean up the code, comments and white space in multiple places (Bjorn Helgaas, Gustavo Silva, Kefeng Wang). -----BEGIN PGP SIGNATURE----- iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAlzQEdcSHHJqd0Byand5 c29ja2kubmV0AAoJEILEb/54YlRxVKEP/ijfyNbe2s21nZXdEmL2mEFlkK3jvN/P d9jDkM9u3iJzFHTjwbMrYa7uXQpLtlhsE3QrcRcfkumOf8XWH1kSY1pDfb3W701w 3Zy1zJyiH4SA5xwipDgiqLsHneV3NqtyYHjWh0u52zM8S5aL58ZPlgxwY/qywt94 CMCfs+QCR+MKHvJVjo8EjlF3pwOgZpIFpIHtzo5A87yzwnG3kWls0UVfJGHSAKsX q+m3RhglqeVYVabXU/d5B9PnZiN5SmZdI864D2a5Dh4D/puv+k9hhBdCaMMi2F25 GZwFsBh3ymbcPCfaKe422488ERh1l8Ov1JsLUbFRcYw8euFXkaoOYtugETIy2XR9 3JNWu3TiuBhA4EkQdpiWY+CIcUmXDUzmEDhJBG1e6hhzlqZknIcfXVp6qu3bxoA/ OvlC3Lcaw9cHXQLGRk5S3u3F/NzdkSTD1A5bNSdHpbRqj1Ale8H8R9TUfqMX5Nsj r4V5m+2bFsArOdVEit9kUw0MdFq/ew6eO75lBK8sUJLfQ2utiMZW8FuJBeNWRahE bTsfOtxazDl0mcavROfzf4XFaBBQ0YUJvPIgVFhUPGOhlq96OAFgZYYemq7NOpQo EvS8OQD0+k7hFg1/z+JUr8rDa1NRlLypz4iXa/wIU1a/sE0Odv4xwTH1XLhoaQKv nVkGW4GD0WMX =LtlV -----END PGP SIGNATURE----- Merge tag 'acpi-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI updates from Rafael Wysocki: "These rearrange the ACPI documentation by converting it to the .rst format and splitting it into clear categories (admin guide, driver API, firmware guide), switch over multiple users of a problematic library function to a new better one, update the ACPICA code in the kernel to a new upstream release, fix a few issues, improve power device management diagnostics and do some cleanups. Specifics: - Convert the ACPI documentation in the kernel source tree to the .rst format and split it into the admin guide, driver API and firmware guide parts (Changbin Du). - Add a PRP0001 usage example to the ACPI documentation (Thomas Preston). - Switch over the users of the acpi_dev_get_first_match_name() library function which turned out to be problematic to a new, better one called acpi_dev_get_first_match_dev() (Andy Shevchenko, YueHaibing). - Update the ACPICA code in the kernel to upstream release 20190405 including: * Null pointer dereference check in acpi_ns_delete_node() (Erik Schmauss). * Multiple macro and function name changes (Bob Moore). * Predefined operation region name fix (Erik Schmauss). - Fix hibernation issue on systems using the Baytrail and Cherrytrail Intel SoCs introduced during the 4.20 development cycle (Hans de Goede). - Add Sony VPCEH3U1E to the backlight quirk list (Zhang Rui). - Fix button handling during system resume (Zhang Rui). - Add a device PM diagnostic message (Rafael Wysocki). - Clean up the code, comments and white space in multiple places (Bjorn Helgaas, Gustavo Silva, Kefeng Wang)" * tag 'acpi-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (53 commits) Documentation: ACPI: move video_extension.txt to firmware-guide/acpi and convert to reST Documentation: ACPI: move ssdt-overlays.txt to admin-guide/acpi and convert to reST Documentation: ACPI: move lpit.txt to firmware-guide/acpi and convert to reST Documentation: ACPI: move cppc_sysfs.txt to admin-guide/acpi and convert to reST Documentation: ACPI: move apei/einj.txt to firmware-guide/acpi and convert to reST Documentation: ACPI: move apei/output_format.txt to firmware-guide/acpi and convert to reST Documentation: ACPI: move aml-debugger.txt to firmware-guide/acpi and convert to reST Documentation: ACPI: move method-tracing.txt to firmware-guide/acpi and convert to rsST Documentation: ACPI: move debug.txt to firmware-guide/acpi and convert to reST Documentation: ACPI: move dsd/data-node-references.txt to firmware-guide/acpi and convert to reST Documentation: ACPI: move dsd/graph.txt to firmware-guide/acpi and convert to reST Documentation: ACPI: move acpi-lid.txt to firmware-guide/acpi and convert to reST Documentation: ACPI: move i2c-muxes.txt to firmware-guide/acpi and convert to reST Documentation: ACPI: move dsdt-override.txt to admin-guide/acpi and convert to reST Documentation: ACPI: move initrd_table_override.txt to admin-guide/acpi and convert to reST Documentation: ACPI: move method-customizing.txt to firmware-guide/acpi and convert to reST Documentation: ACPI: move gpio-properties.txt to firmware-guide/acpi and convert to reST Documentation: ACPI: move DSD-properties-rules.txt to firmware-guide/acpi and covert to reST Documentation: ACPI: move scan_handlers.txt to driver-api/acpi and convert to reST Documentation: ACPI: move linuxized-acpica.txt to driver-api/acpi and convert to reST ... |
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Linus Torvalds
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dd4e5d6106 |
Remove Mysterious Macro Intended to Obscure Weird Behaviours (mmiowb())
Remove mmiowb() from the kernel memory barrier API and instead, for architectures that need it, hide the barrier inside spin_unlock() when MMIO has been performed inside the critical section. -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAlzMFaUACgkQt6xw3ITB YzRICQgAiv7wF/yIbBhDOmCNCAKDO59chvFQWxXWdGk/aAB56kwKAMXJgLOvlMG/ VRuuLyParTFQETC3jaxKgnO/1hb+PZLDt2Q2KqixtjIzBypKUPWvK2sf6THhSRF1 GK0DBVUd1rCrWrR815+SPb8el4xXtdBzvAVB+Fx35PXVNpdRdqCkK+EQ6UnXGokm rXXHbnfsnquBDtmb4CR4r2beH+aNElXbdt0Kj8VcE5J7f7jTdW3z6Q9WFRvdKmK7 yrsxXXB2w/EsWXOwFp0SLTV5+fgeGgTvv8uLjDw+SG6t0E0PebxjNAflT7dPrbYL WecjKC9WqBxrGY+4ew6YJP70ijLBCw== =aC8m -----END PGP SIGNATURE----- Merge tag 'arm64-mmiowb' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull mmiowb removal from Will Deacon: "Remove Mysterious Macro Intended to Obscure Weird Behaviours (mmiowb()) Remove mmiowb() from the kernel memory barrier API and instead, for architectures that need it, hide the barrier inside spin_unlock() when MMIO has been performed inside the critical section. The only relatively recent changes have been addressing review comments on the documentation, which is in a much better shape thanks to the efforts of Ben and Ingo. I was initially planning to split this into two pull requests so that you could run the coccinelle script yourself, however it's been plain sailing in linux-next so I've just included the whole lot here to keep things simple" * tag 'arm64-mmiowb' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (23 commits) docs/memory-barriers.txt: Update I/O section to be clearer about CPU vs thread docs/memory-barriers.txt: Fix style, spacing and grammar in I/O section arch: Remove dummy mmiowb() definitions from arch code net/ethernet/silan/sc92031: Remove stale comment about mmiowb() i40iw: Redefine i40iw_mmiowb() to do nothing scsi/qla1280: Remove stale comment about mmiowb() drivers: Remove explicit invocations of mmiowb() drivers: Remove useless trailing comments from mmiowb() invocations Documentation: Kill all references to mmiowb() riscv/mmiowb: Hook up mmwiob() implementation to asm-generic code powerpc/mmiowb: Hook up mmwiob() implementation to asm-generic code ia64/mmiowb: Add unconditional mmiowb() to arch_spin_unlock() mips/mmiowb: Add unconditional mmiowb() to arch_spin_unlock() sh/mmiowb: Add unconditional mmiowb() to arch_spin_unlock() m68k/io: Remove useless definition of mmiowb() nds32/io: Remove useless definition of mmiowb() x86/io: Remove useless definition of mmiowb() arm64/io: Remove useless definition of mmiowb() ARM/io: Remove useless definition of mmiowb() mmiowb: Hook up mmiowb helpers to spinlocks and generic I/O accessors ... |
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Changbin Du
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97a63dd434 |
Documentation: ACPI: move scan_handlers.txt to driver-api/acpi and convert to reST
This converts the plain text documentation to reStructuredText format and adds it to Sphinx TOC tree. No essential content change. Signed-off-by: Changbin Du <changbin.du@gmail.com> Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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Changbin Du
|
25710e23cd |
Documentation: ACPI: move linuxized-acpica.txt to driver-api/acpi and convert to reST
This converts the plain text documentation to reStructuredText format and adds it to Sphinx TOC tree. No essential content change. Signed-off-by: Changbin Du <changbin.du@gmail.com> Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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Changbin Du
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680e6ffa15 |
Documentation: add Linux ACPI to Sphinx TOC tree
Add below index.rst files for ACPI subsystem. More docs will be added later. o admin-guide/acpi/index.rst o driver-api/acpi/index.rst o firmware-guide/index.rst Signed-off-by: Changbin Du <changbin.du@gmail.com> Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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William Breathitt Gray
|
09e7d4ed89 |
docs: Add Generic Counter interface documentation
This patch adds high-level documentation about the Generic Counter interface. Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Alan Stern
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c2b71462d2 |
USB: core: Fix bug caused by duplicate interface PM usage counter
The syzkaller fuzzer reported a bug in the USB hub driver which turned out to be caused by a negative runtime-PM usage counter. This allowed a hub to be runtime suspended at a time when the driver did not expect it. The symptom is a WARNING issued because the hub's status URB is submitted while it is already active: URB 0000000031fb463e submitted while active WARNING: CPU: 0 PID: 2917 at drivers/usb/core/urb.c:363 The negative runtime-PM usage count was caused by an unfortunate design decision made when runtime PM was first implemented for USB. At that time, USB class drivers were allowed to unbind from their interfaces without balancing the usage counter (i.e., leaving it with a positive count). The core code would take care of setting the counter back to 0 before allowing another driver to bind to the interface. Later on when runtime PM was implemented for the entire kernel, the opposite decision was made: Drivers were required to balance their runtime-PM get and put calls. In order to maintain backward compatibility, however, the USB subsystem adapted to the new implementation by keeping an independent usage counter for each interface and using it to automatically adjust the normal usage counter back to 0 whenever a driver was unbound. This approach involves duplicating information, but what is worse, it doesn't work properly in cases where a USB class driver delays decrementing the usage counter until after the driver's disconnect() routine has returned and the counter has been adjusted back to 0. Doing so would cause the usage counter to become negative. There's even a warning about this in the USB power management documentation! As it happens, this is exactly what the hub driver does. The kick_hub_wq() routine increments the runtime-PM usage counter, and the corresponding decrement is carried out by hub_event() in the context of the hub_wq work-queue thread. This work routine may sometimes run after the driver has been unbound from its interface, and when it does it causes the usage counter to go negative. It is not possible for hub_disconnect() to wait for a pending hub_event() call to finish, because hub_disconnect() is called with the device lock held and hub_event() acquires that lock. The only feasible fix is to reverse the original design decision: remove the duplicate interface-specific usage counter and require USB drivers to balance their runtime PM gets and puts. As far as I know, all existing drivers currently do this. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-and-tested-by: syzbot+7634edaea4d0b341c625@syzkaller.appspotmail.com CC: <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Will Deacon
|
915530396c |
Documentation: Kill all references to mmiowb()
The guarantees provided by mmiowb() are now provided implicitly by spin_unlock(), so remove all references to this most confusing of barriers from our Documentation. Good riddance. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Will Deacon <will.deacon@arm.com> |
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Rafael J. Wysocki
|
fc1860d6b1 |
Documentation: PM: Unify copyright notices
Unify copyright notices in the .rst files under Documentation/driver-api/pm and Documentation/admin-quide/pm. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> |
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Rafael J. Wysocki
|
fc7db767b1 |
Documentation: PM: Add SPDX license tags to multiple files
Add SPDX license tags to .rst files under Documentation/driver-api/pm and Documentation/admin-quide/pm. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> |
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Jonathan Neuschäfer
|
491a3e883c |
Documentation: soundwire: Ensure that code is inside the code blocks
The way the document is written now, Sphinx renders empty code blocks followed by the lines that should be inside them. Unindent the code-block directives to fix this. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: Jonathan Corbet <corbet@lwn.net> |
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Daniel Vetter
|
0bec6219e5 |
drm-misc-next for 5.2:
UAPI Changes: - Add Colorspace connector property (Uma) - fourcc: Several new YUV formats from ARM (Brian & Ayan) - fourcc: Fix merge conflicts between new formats above and Swati's that went in via topic/hdr-formats-2019-03-07 branch (Maarten) Cross-subsystem Changes: - Typed component support via topic/component-typed-2019-02-11 (Maxime/Daniel) Core Changes: - Improve component helper documentation (Daniel) - Avoid calling drm_dev_unregister() twice on unplugged devices (Noralf) - Add device managed (devm) drm_device init function (Noralf) - Graduate TINYDRM_MODE to DRM_SIMPLE_MODE in core (Noralf) - Move MIPI/DSI rate control params computation into core from i915 (David) - Add support for shmem backed gem objects (Noralf) Driver Changes: - various: Use of_node_name_eq for node name comparisons (Rob Herring) - sun4i: Add DSI burst mode support (Konstantin) - panel: Add Ronbo RB070D30 MIPI/DSI panel support (Konstantin) - virtio: A few prime improvements (Gerd) - tinydrm: Remove tinydrm_device (Noralf) - vc4: Add load tracker to driver to detect underflow in atomic check (Boris) - vboxvideo: Move it out of staging \o/ (Hans) - v3d: Add support for V3D v4.2 (Eric) Cc: Konstantin Sudakov <k.sudakov@integrasources.com> Cc: Rob Herring <robh@kernel.org> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Cc: Uma Shankar <uma.shankar@intel.com> Cc: Noralf Trønnes <noralf@tronnes.org> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: David Francis <David.Francis@amd.com> Cc: Boris Brezillon <boris.brezillon@bootlin.com> Cc: Eric Anholt <eric@anholt.net> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Brian Starkey <brian.starkey@arm.com> Cc: Ayan Kumar Halder <ayan.halder@arm.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEfxcpfMSgdnQMs+QqlvcN/ahKBwoFAlyTxEYACgkQlvcN/ahK Bwpfhgf9HTwlxHKPwRL70o5Ilp7JVjeLjM5IgDgz+o7F+UZn2OdWocmSDAbJ+lwe V+LXImc5tykGNRzgn4lXljGv3jqxOgVOxEBo53hVjXeYE/jIdbGDF1cx+1tSke67 lbO61dD9RM5GG9eLuzZ9S72qv5mfBYKHJZuULqOei/Ohnubkg0kDQ3zQEFDah1mh kqHJkd+x1PwcwBnAjbWdIaCMiwrVmxj7yXLQS8bJzSFKc0/r7HlG8qNWmiBllH0D aRMO2phHkXCVZY+GWWCEOZwz7ve23sibYm9tzBS69nbWJL12CAomB/8LrRPM2K5v tVBNrX0eNHMKtOa0En0oF37BXUXizQ== =DVKQ -----END PGP SIGNATURE----- Merge tag 'drm-misc-next-2019-03-21' of git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for 5.2: UAPI Changes: - Add Colorspace connector property (Uma) - fourcc: Several new YUV formats from ARM (Brian & Ayan) - fourcc: Fix merge conflicts between new formats above and Swati's that went in via topic/hdr-formats-2019-03-07 branch (Maarten) Cross-subsystem Changes: - Typed component support via topic/component-typed-2019-02-11 (Maxime/Daniel) Core Changes: - Improve component helper documentation (Daniel) - Avoid calling drm_dev_unregister() twice on unplugged devices (Noralf) - Add device managed (devm) drm_device init function (Noralf) - Graduate TINYDRM_MODE to DRM_SIMPLE_MODE in core (Noralf) - Move MIPI/DSI rate control params computation into core from i915 (David) - Add support for shmem backed gem objects (Noralf) Driver Changes: - various: Use of_node_name_eq for node name comparisons (Rob Herring) - sun4i: Add DSI burst mode support (Konstantin) - panel: Add Ronbo RB070D30 MIPI/DSI panel support (Konstantin) - virtio: A few prime improvements (Gerd) - tinydrm: Remove tinydrm_device (Noralf) - vc4: Add load tracker to driver to detect underflow in atomic check (Boris) - vboxvideo: Move it out of staging \o/ (Hans) - v3d: Add support for V3D v4.2 (Eric) Cc: Konstantin Sudakov <k.sudakov@integrasources.com> Cc: Rob Herring <robh@kernel.org> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Cc: Uma Shankar <uma.shankar@intel.com> Cc: Noralf Trønnes <noralf@tronnes.org> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: David Francis <David.Francis@amd.com> Cc: Boris Brezillon <boris.brezillon@bootlin.com> Cc: Eric Anholt <eric@anholt.net> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Brian Starkey <brian.starkey@arm.com> Cc: Ayan Kumar Halder <ayan.halder@arm.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> From: Sean Paul <sean@poorly.run> Link: https://patchwork.freedesktop.org/patch/msgid/20190321170805.GA50145@art_vandelay |
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Linus Torvalds
|
31ef489a02 |
dmaengine updates for v5.1-rc1
- dmatest updates for modularizing common struct and code - remove SG support for VDMA xilinx IP and updates to driver - Update to dw driver to support Intel iDMA controllers multi-block support - tegra updates for proper reporting of residue - Add Snow Ridge ioatdma device id and support for IOATDMA v3.4 - struct_size() usage and useless LIST_HEAD cleanups in subsystem. - qDMA controller driver for Layerscape SoCs - stm32-dma PM Runtime support - And usual updates to imx-sdma, sprd, Documentation, fsl-edma, bcm2835, qcom_hidma etc -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJciVhkAAoJEHwUBw8lI4NHdVoQANDfaY1eruozJobfWX0w1b8U 0eSCN4M/gRzL/K1nOTWTV9dZFGycGokPBn25lryX6d6VIL+yO7Ptpwls/w0inn0e RgVtESQodLZyxcD4iWACVfTGxqxe74/bXCRAq0OCrjt5oX+5KdsBsTrhHvB8dQin JWT7Mq6tii5wZHZHl9b4Ds/crxM9+pIHmlzbu5MQiPDL37X9HX4KUoLQCKrVGgZt 3FjlKEiSS6CnBWP1cs/aHgANr/PjOIwL8SD1t5NPS3i7/2k9z1u16TmmI8SbcyHf y9hVy1QPlxC5V85EPYK7JW7JLILotkMToxlX/QhfaFN0PWQq04rp6PCLvObKJuB2 36QJTwSXBM2/f9bWwkddPyo9Szb3L30K80Vx8zlxzgoXYWtFFB2BXAV57M/I48j2 gMnxEMZpHD3IupeqlykCmssClVVmCRT8qUZHLNHTdDNu48rLuNlZestFGyBS2Ma2 D4UcJPiA/IxENy1rz54XoCajL/BIJOsFXXVRikjj3vfbV0Uir0uB9puzwfemMtKz tCrJbKwnnDtN30vBZtU7hVu/t4lFYYnl2c945+SpeQC69dysz3IFQGem0kxVHKnH INdQH4Od7nQbVQer1EXg4+h3n/rUbcYx/0iLE6JAYyOT80wE+KSlrQ5etqyJ3/qh 1BxvU49PkUUPzw7aUGgS =Ykvn -----END PGP SIGNATURE----- Merge tag 'dmaengine-5.1-rc1' of git://git.infradead.org/users/vkoul/slave-dma Pull dmaengine updates from Vinod Koul: - dmatest updates for modularizing common struct and code - remove SG support for VDMA xilinx IP and updates to driver - Update to dw driver to support Intel iDMA controllers multi-block support - tegra updates for proper reporting of residue - Add Snow Ridge ioatdma device id and support for IOATDMA v3.4 - struct_size() usage and useless LIST_HEAD cleanups in subsystem. - qDMA controller driver for Layerscape SoCs - stm32-dma PM Runtime support - And usual updates to imx-sdma, sprd, Documentation, fsl-edma, bcm2835, qcom_hidma etc * tag 'dmaengine-5.1-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (81 commits) dmaengine: imx-sdma: fix consistent dma test failures dmaengine: imx-sdma: add a test for imx8mq multi sdma devices dmaengine: imx-sdma: add clock ratio 1:1 check dmaengine: dmatest: move test data alloc & free into functions dmaengine: dmatest: add short-hand `buf_size` var in dmatest_func() dmaengine: dmatest: wrap src & dst data into a struct dmaengine: ioatdma: support latency tolerance report (LTR) for v3.4 dmaengine: ioatdma: add descriptor pre-fetch support for v3.4 dmaengine: ioatdma: disable DCA enabling on IOATDMA v3.4 dmaengine: ioatdma: Add Snow Ridge ioatdma device id dmaengine: sprd: Change channel id to slave id for DMA cell specifier dt-bindings: dmaengine: sprd: Change channel id to slave id for DMA cell specifier dmaengine: mv_xor: Use correct device for DMA API Documentation :dmaengine: clarify DMA desc. pointer after submission Documentation: dmaengine: fix dmatest.rst warning dmaengine: k3dma: Add support for dma-channel-mask dmaengine: k3dma: Delete axi_config dmaengine: k3dma: Upgrade k3dma driver to support hisi_asp_dma hardware Documentation: bindings: dma: Add binding for dma-channel-mask Documentation: bindings: k3dma: Extend the k3dma driver binding to support hisi-asp ... |
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Linus Torvalds
|
cf0240a755 |
This is the bulk of pin control changes for the v5.1 kernel cycle.
No core changes. New drivers: - NXP (ex Freescale) i.MX 8QM driver. - NXP (ex Freescale) i.MX 8MM driver. - AT91 SAM9X60 subdriver. Improvements: - Support for external interrups (EINT) on Mediatek virtual GPIOs. - Make BCM2835 pin config fully generic. - Lots of Renesas SH-PFC incremental improvements. -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJchil8AAoJEEEQszewGV1zTCcP/AurT3InBO4nVdN9UMuoDL7P gx3SALULapc4+M1NUoRw+w+z5fvjd0gGdPXZeyhX1E9kXxLmWBmBf6tl0MO2YYPC UWbSnBaWIOOli0f4k+GKVF8LKqD0z0e/YqX4mG7UI3OLJzcJgm7OL9uXN3Gh7tIP Pa6CGbv0aRDkZpWUD2ZTpSPCRYGT57roVq//d7V7s+0lveS97pQuMv43YlS5L2my JOOhHNG33bgi4lS/ZOP81G16oOrVaoupXuX7E+AvgG6vxr5965Fi+qoGLkxIuYOm jtrzuNY98eL2m9b505VYdNmD7ouBhG6CKFb4njpOvjkkqNUXOaGV53wlEuEYRUNz bsp0596+dlOcW7wl11r6YI4Kyn2wQJFql1AwS8A4dEtbuboGrDy16N3adr1SkIGZ 4ESN8xydcC7CAgUGXks+AgDj9vYwOs4apylJDW5tMk4K0LIsEYsDkbNeS9hwDYIH ZlbQe9N2loB6qQbX3c3D3/sIhKj2VB4elONSwOW10M8OJdJwp8h44UyMZ3TIEHIT 7Gu9pw5vobXbccKCSjqkYYflaHMmjwZUtLqDZws818sbe/xgDxONbRqloZCLV39Y kmwRGbbE5WtNAM0X+ABwMG3Lm77wxCFKCjJwLHH79qqt4kSBynEKXQ4D/coG/Hln 6idanzKEPiIBJ+6QLdbQ =EfXK -----END PGP SIGNATURE----- Merge tag 'pinctrl-v5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control updates from Linus Walleij: "This is a calm cycle, not much happened this time around: not even much incremental development. Some three new drivers, that is all. No core changes. New drivers: - NXP (ex Freescale) i.MX 8QM driver. - NXP (ex Freescale) i.MX 8MM driver. - AT91 SAM9X60 subdriver. Improvements: - Support for external interrups (EINT) on Mediatek virtual GPIOs. - Make BCM2835 pin config fully generic. - Lots of Renesas SH-PFC incremental improvements" * tag 'pinctrl-v5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (70 commits) pinctrl: imx: fix scu link errors dt-bindings: pinctrl: Document the i.MX50 IOMUXC binding pinctrl: qcom: spmi-gpio: Reorder debug print pinctrl: nomadik: fix possible object reference leak pinctrl: stm32: return error upon hwspinlock failure pinctrl: stm32: fix memory leak issue pinctrl: sh-pfc: r8a77965: Add DRIF pins, groups and functions pinctrl: sh-pfc: r8a77965: Add TMU pins, groups and functions pinctrl: sh-pfc: Validate fixed-size field widths at build time pinctrl: sh-pfc: sh73a0: Fix fsic_spdif pin groups pinctrl: sh-pfc: r8a7792: Fix vin1_data18_b pin group pinctrl: sh-pfc: r8a7791: Fix scifb2_data_c pin group pinctrl: sh-pfc: emev2: Add missing pinmux functions pinctrl: sunxi: Support I/O bias voltage setting on A80 pinctrl: ingenic: Add LCD pins for the JZ4725B SoC pinctrl: samsung: Remove legacy API for handling external wakeup interrupts mask pinctrl: bcm2835: Direct GPIO config changes to generic pinctrl pinctrl: bcm2835: declare pin config as generic pinctrl: qcom: qcs404: Drop unused UFS_RESET macro dt-bindings: add documentation for slew rate ... |
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Linus Torvalds
|
1a29e85750 |
A fairly routine cycle for docs - lots of typo fixes, some new documents,
and more translations. There's also some LICENSES adjustments from Thomas. -----BEGIN PGP SIGNATURE----- iQFDBAABCAAtFiEEIw+MvkEiF49krdp9F0NaE2wMflgFAlyBl54PHGNvcmJldEBs d24ubmV0AAoJEBdDWhNsDH5YxoYH/3OcInUSk17Cb+wNpnJX66dXyVvzZcuAh5aU HW5YWIIlp60jwsM0z+sVqNR51tfC+eMjw2HOWj0hOEUju7UGm7aDtB+WkEeJ7GUk e/FX+GXD/OygQtpwXRQraWU/RO3RPSB9JKodF5tQ6aihOzsQGB9c11I0/f3Qp7+U vaLBOdAlpQYemlzLKbskRZ2YpokELfpgwSb6O7mpI9i3mJeZA/lpyYSmHQxqwvG7 sqrmm7vHB7b0tZGqQISQaZNdUmSSD1lRfOX3brFw2DOIj2V2M1+O/8smBtRuAGf5 B03C7LjkNFn55tn1OHYlWEv8RpG5kH3VNc896jiWPDOXNpMSgl8= =bOsl -----END PGP SIGNATURE----- Merge tag 'docs-5.1' of git://git.lwn.net/linux Pull documentation updates from Jonathan Corbet: "A fairly routine cycle for docs - lots of typo fixes, some new documents, and more translations. There's also some LICENSES adjustments from Thomas" * tag 'docs-5.1' of git://git.lwn.net/linux: (74 commits) docs: Bring some order to filesystem documentation Documentation/locking/lockdep: Drop last two chars of sample states doc: rcu: Suspicious RCU usage is a warning docs: driver-api: iio: fix errors in documentation Documentation/process/howto: Update for 4.x -> 5.x versioning docs: Explicitly state that the 'Fixes:' tag shouldn't split lines doc: security: Add kern-doc for lsm_hooks.h doc: sctp: Merge and clean up rst files Docs: Correct /proc/stat path scripts/spdxcheck.py: fix C++ comment style detection doc: fix typos in license-rules.rst Documentation: fix admin-guide/README.rst minimum gcc version requirement doc: process: complete removal of info about -git patches doc: translations: sync translations 'remove info about -git patches' perf-security: wrap paragraphs on 72 columns perf-security: elaborate on perf_events/Perf privileged users perf-security: document collected perf_events/Perf data categories perf-security: document perf_events/Perf resource control sysfs.txt: add note on available attribute macros docs: kernel-doc: typo "if ... if" -> "if ... is" ... |
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Linus Torvalds
|
3601fe43e8 |
This is the bulk of GPIO changes for the v5.1 cycle:
Core changes: - The big change this time around is the irqchip handling in the qualcomm pin controllers, closely coupled with the gpiochip. This rework, in a classic fall-between-the-chairs fashion has been sidestepped for too long. The Qualcomm IRQchips using the SPMI and SSBI transport mechanisms have been rewritten to use hierarchical irqchip. This creates the base from which I intend to gradually pull support for hierarchical irqchips into the gpiolib irqchip helpers to cut down on duplicate code. We have too many hacks in the kernel because people have been working around the missing hierarchical irqchip for years, and once it was there, noone understood it for a while. We are now slowly adapting to using it. This is why this pull requests include changes to MFD, SPMI, IRQchip core and some ARM Device Trees pertaining to the Qualcomm chip family. Since Qualcomm have so many chips and such large deployments it is paramount that this platform gets this right, and now it (hopefully) does. - Core support for pull-up and pull-down configuration, also from the device tree. When a simple GPIO chip support a "off or on" pull-up or pull-down resistor, we provide a way to set this up using machine descriptors or device tree. If more elaborate control of pull up/down (such as resistance shunt setting) is required, drivers should be phased over to use pin control. We do not yet provide a userspace ABI for this pull up-down setting but I suspect the makers are going to ask for it soon enough. PCA953x is the first user of this new API. - The GPIO mockup driver has been revamped after some discussion improving the IRQ simulator in the process. The idea is to make it possible to use the mockup for both testing and virtual prototyping, e.g. when you do not yet have a GPIO expander to play with but really want to get something to develop code around before hardware is available. It's neat. The blackbox testing usecase is currently making its way into kernelci. - ACPI GPIO core preserves non direction flags when updating flags. - A new device core helper for devm_platform_ioremap_resource() is funneled through the GPIO tree with Greg's ACK. New drivers: - TQ-Systems QTMX86 GPIO controllers (using port-mapped I/O) - Gateworks PLD GPIO driver (vaccumed up from OpenWrt) - AMD G-Series PCH (Platform Controller Hub) GPIO driver. - Fintek F81804 & F81966 subvariants. - PCA953x now supports NXP PCAL6416. Driver improvements: - IRQ support on the Nintendo Wii (Hollywood) GPIO. - get_direction() support for the MVEBU driver. - Set the right output level on SAMA5D2. - Drop the unused irq trigger setting on the Spreadtrum driver. - Wakeup support for PCA953x. - A slew of cleanups in the various Intel drivers. -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJcgoLEAAoJEEEQszewGV1zjBAP/3OmTFGv49PFmJwSx+PlLiYf V6/UPaQzq81CGSMtHxbS51TyP9Id7PCfsacbuFYutzn0D1efvl7jrkb8qJ6fVvCM bl/i6q8ipRTPzAf1hD3QCgCe3BXCA064/OcPrz987oIvI3bJQXsmBjBSXHWr4Cwa WfB5DX/afn9TK3XHhMQGfw5f0d+TtnKAs90RTTVKiz9Ow8eFYZJOhgPkvhCR3Gi9 YJIzIAiwhHZ7/zauo4JAYFU/O/Z3YEC5zeLne2ItebzNooRkSxdz0c9Hs7HlCZmU 930Uv9jNN89N3vPqpZzAHtPvwDOmAILMWvKy9xRSp+eoIukarRJgF7ALPk7QWxK1 yy+tGj4dXBQ6tI8W3wUN1WgjNpii3K1HbJ+1LQVQL2/q9o+3YXXqmjdjuw7C8YYV 5ystNrUppkgfIIciHL4lhqw3wKJJhVEAns2V245hIitoShT+RvIg8GQbGZmWlQFd YsHbynqHL9iwfRNv26kEqZXZOo/4D1t6Scw+OPVyba2Wyttf+qbmg+XaYMqFaxYW mfydvdtymeCOUIPJMzw58KGPUTXJ4UPLENyayXNUHokr1a8VO8OIthY7zwi0CpvJ IcsAY9zoGxvfbRV922mlIsw3oOBcM2IN2lC9sY469ZVnjBrdC3rsQpIBZr+Vzz8i YlUfXLSGSyuUZUz//2eG =VoVC -----END PGP SIGNATURE----- Merge tag 'gpio-v5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO updates from Linus Walleij: "This is the bulk of GPIO changes for the v5.1 cycle: Core changes: - The big change this time around is the irqchip handling in the qualcomm pin controllers, closely coupled with the gpiochip. This rework, in a classic fall-between-the-chairs fashion has been sidestepped for too long. The Qualcomm IRQchips using the SPMI and SSBI transport mechanisms have been rewritten to use hierarchical irqchip. This creates the base from which I intend to gradually pull support for hierarchical irqchips into the gpiolib irqchip helpers to cut down on duplicate code. We have too many hacks in the kernel because people have been working around the missing hierarchical irqchip for years, and once it was there, noone understood it for a while. We are now slowly adapting to using it. This is why this pull requests include changes to MFD, SPMI, IRQchip core and some ARM Device Trees pertaining to the Qualcomm chip family. Since Qualcomm have so many chips and such large deployments it is paramount that this platform gets this right, and now it (hopefully) does. - Core support for pull-up and pull-down configuration, also from the device tree. When a simple GPIO chip supports an "off or on" pull-up or pull-down resistor, we provide a way to set this up using machine descriptors or device tree. If more elaborate control of pull up/down (such as resistance shunt setting) is required, drivers should be phased over to use pin control. We do not yet provide a userspace ABI for this pull up-down setting but I suspect the makers are going to ask for it soon enough. PCA953x is the first user of this new API. - The GPIO mockup driver has been revamped after some discussion improving the IRQ simulator in the process. The idea is to make it possible to use the mockup for both testing and virtual prototyping, e.g. when you do not yet have a GPIO expander to play with but really want to get something to develop code around before hardware is available. It's neat. The blackbox testing usecase is currently making its way into kernelci. - ACPI GPIO core preserves non direction flags when updating flags. - A new device core helper for devm_platform_ioremap_resource() is funneled through the GPIO tree with Greg's ACK. New drivers: - TQ-Systems QTMX86 GPIO controllers (using port-mapped I/O) - Gateworks PLD GPIO driver (vaccumed up from OpenWrt) - AMD G-Series PCH (Platform Controller Hub) GPIO driver. - Fintek F81804 & F81966 subvariants. - PCA953x now supports NXP PCAL6416. Driver improvements: - IRQ support on the Nintendo Wii (Hollywood) GPIO. - get_direction() support for the MVEBU driver. - Set the right output level on SAMA5D2. - Drop the unused irq trigger setting on the Spreadtrum driver. - Wakeup support for PCA953x. - A slew of cleanups in the various Intel drivers" * tag 'gpio-v5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (110 commits) gpio: gpio-omap: fix level interrupt idling gpio: amd-fch: Set proper output level for direction_output x86: apuv2: remove unused variable gpio: pca953x: Use PCA_LATCH_INT platform/x86: fix PCENGINES_APU2 Kconfig warning gpio: pca953x: Fix dereference of irq data in shutdown gpio: amd-fch: Fix type error found by sparse gpio: amd-fch: Drop const from resource gpio: mxc: add check to return defer probe if clock tree NOT ready gpio: ftgpio: Register per-instance irqchip gpio: ixp4xx: Add DT bindings x86: pcengines apuv2 gpio/leds/keys platform driver gpio: AMD G-Series PCH gpio driver drivers: depend on HAS_IOMEM for devm_platform_ioremap_resource() gpio: tqmx86: Set proper output level for direction_output gpio: sprd: Change to use SoC compatible string gpio: sprd: Use SoC compatible string instead of wildcard string gpio: of: Handle both enable-gpio{,s} gpio: of: Restrict enable-gpio quirk to regulator-gpio gpio: davinci: use devm_platform_ioremap_resource() ... |
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Linus Torvalds
|
e431f2d74e |
Driver core patches for 5.1-rc1
Here is the big driver core patchset for 5.1-rc1 More patches than "normal" here this merge window, due to some work in the driver core by Alexander Duyck to rework the async probe functionality to work better for a number of devices, and independant work from Rafael for the device link functionality to make it work "correctly". Also in here is: - lots of BUS_ATTR() removals, the macro is about to go away - firmware test fixups - ihex fixups and simplification - component additions (also includes i915 patches) - lots of minor coding style fixups and cleanups. All of these have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXH+euQ8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ynyTgCfbV8CLums843sBnT8NnWrTMTdTCcAn1K4re0m ep8g+6oRLxJy414hogxQ =bLs2 -----END PGP SIGNATURE----- Merge tag 'driver-core-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the big driver core patchset for 5.1-rc1 More patches than "normal" here this merge window, due to some work in the driver core by Alexander Duyck to rework the async probe functionality to work better for a number of devices, and independant work from Rafael for the device link functionality to make it work "correctly". Also in here is: - lots of BUS_ATTR() removals, the macro is about to go away - firmware test fixups - ihex fixups and simplification - component additions (also includes i915 patches) - lots of minor coding style fixups and cleanups. All of these have been in linux-next for a while with no reported issues" * tag 'driver-core-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (65 commits) driver core: platform: remove misleading err_alloc label platform: set of_node in platform_device_register_full() firmware: hardcode the debug message for -ENOENT driver core: Add missing description of new struct device_link field driver core: Fix PM-runtime for links added during consumer probe drivers/component: kerneldoc polish async: Add cmdline option to specify drivers to be async probed driver core: Fix possible supplier PM-usage counter imbalance PM-runtime: Fix __pm_runtime_set_status() race with runtime resume driver: platform: Support parsing GpioInt 0 in platform_get_irq() selftests: firmware: fix verify_reqs() return value Revert "selftests: firmware: remove use of non-standard diff -Z option" Revert "selftests: firmware: add CONFIG_FW_LOADER_USER_HELPER_FALLBACK to config" device: Fix comment for driver_data in struct device kernfs: Allocating memory for kernfs_iattrs with kmem_cache. sysfs: remove unused include of kernfs-internal.h driver core: Postpone DMA tear-down until after devres release driver core: Document limitation related to DL_FLAG_RPM_ACTIVE PM-runtime: Take suppliers into account in __pm_runtime_set_status() device.h: Add __cold to dev_<level> logging functions ... |
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Linus Torvalds
|
45763bf4bc |
Char/Misc driver patches for 5.1-rc1
Here is the big char/misc driver patch pull request for 5.1-rc1. The largest thing by far is the new habanalabs driver for their AI accelerator chip. For now it is in the drivers/misc directory but will probably move to a new directory soon along with other drivers of this type. Other than that, just the usual set of individual driver updates and fixes. There's an "odd" merge in here from the DRM tree that they asked me to do as the MEI driver is starting to interact with the i915 driver, and it needed some coordination. All of those patches have been properly acked by the relevant subsystem maintainers. All of these have been in linux-next with no reported issues, most for quite some time. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXH+dPQ8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ym1fACgvpZAxjNzoRQJ6f06tc8ujtPk9rUAnR+tCtrZ 9e3l7H76oe33o96Qjhor =8A2k -----END PGP SIGNATURE----- Merge tag 'char-misc-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the big char/misc driver patch pull request for 5.1-rc1. The largest thing by far is the new habanalabs driver for their AI accelerator chip. For now it is in the drivers/misc directory but will probably move to a new directory soon along with other drivers of this type. Other than that, just the usual set of individual driver updates and fixes. There's an "odd" merge in here from the DRM tree that they asked me to do as the MEI driver is starting to interact with the i915 driver, and it needed some coordination. All of those patches have been properly acked by the relevant subsystem maintainers. All of these have been in linux-next with no reported issues, most for quite some time" * tag 'char-misc-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (219 commits) habanalabs: adjust Kconfig to fix build errors habanalabs: use %px instead of %p in error print habanalabs: use do_div for 64-bit divisions intel_th: gth: Fix an off-by-one in output unassigning habanalabs: fix little-endian<->cpu conversion warnings habanalabs: use NULL to initialize array of pointers habanalabs: fix little-endian<->cpu conversion warnings habanalabs: soft-reset device if context-switch fails habanalabs: print pointer using %p habanalabs: fix memory leak with CBs with unaligned size habanalabs: return correct error code on MMU mapping failure habanalabs: add comments in uapi/misc/habanalabs.h habanalabs: extend QMAN0 job timeout habanalabs: set DMA0 completion to SOB 1007 habanalabs: fix validation of WREG32 to DMA completion habanalabs: fix mmu cache registers init habanalabs: disable CPU access on timeouts habanalabs: add MMU DRAM default page mapping habanalabs: Dissociate RAZWI info from event types misc/habanalabs: adjust Kconfig to fix build errors ... |
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Linus Torvalds
|
ef8006846a |
Power management updates for 5.1-rc1
- Update the PM-runtime framework to use ktime instead of jiffies for accounting (Thara Gopinath, Vincent Guittot). - Optimize the autosuspend code in the PM-runtime framework somewhat (Ladislav Michl). - Add a PM core flag to mark devices that don't need any form of power management (Sudeep Holla). - Introduce driver API documentation for cpuidle and add a new cpuidle governor for tickless systems (Rafael Wysocki). - Add Jacobsville support to the intel_idle driver (Zhang Rui). - Clean up a cpuidle core header file and the cpuidle-dt and ACPI processor-idle drivers (Yangtao Li, Joseph Lo, Yazen Ghannam). - Add new cpufreq driver for Armada 8K (Gregory Clement). - Fix and clean up cpufreq core (Rafael Wysocki, Viresh Kumar, Amit Kucheria). - Add support for light-weight tear-down and bring-up of CPUs to the cpufreq core and use it in the cpufreq-dt driver (Viresh Kumar). - Fix cpu_cooling Kconfig dependencies, add support for CPU cooling auto-registration to the cpufreq core and use it in multiple cpufreq drivers (Amit Kucheria). - Fix some minor issues and do some cleanups in the davinci, e_powersaver, ap806, s5pv210, qcom and kryo cpufreq drivers (Bartosz Golaszewski, Gustavo Silva, Julia Lawall, Paweł Chmiel, Taniya Das, Viresh Kumar). - Add a Hisilicon CPPC quirk to the cppc_cpufreq driver (Xiongfeng Wang). - Clean up the intel_pstate and acpi-cpufreq drivers (Erwan Velu, Rafael Wysocki). - Clean up multiple cpufreq drivers (Yangtao Li). - Update cpufreq-related MAINTAINERS entries (Baruch Siach, Lukas Bulwahn). - Add support for exposing the Energy Model via debugfs and make multiple cpufreq drivers register an Energy Model to support energy-aware scheduling (Quentin Perret, Dietmar Eggemann, Matthias Kaehlcke). - Add Ice Lake mobile and Jacobsville support to the Intel RAPL power-capping driver (Gayatri Kammela, Zhang Rui). - Add a power estimation helper to the operating performance points (OPP) framework and clean up a core function in it (Quentin Perret, Viresh Kumar). - Make minor improvements in the generic power domains (genpd), OPP and system suspend frameworks and in the PM core (Aditya Pakki, Douglas Anderson, Greg Kroah-Hartman, Rafael Wysocki, Yangtao Li). -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABCAAGBQJcfSGlAAoJEILEb/54YlRxikwP/1rQ9+HqDmDUvO2QeYREGO/m R4kK+iUQW7O4ZJzsSvoGyuKCl7c2ANPlJWmbsEZKbevpKZ4XuUcv/CJDqKD1izV7 hfsQyum34ePSCUEMf6CpMAGAkdmK//NVysHiLXZ4j1hhzi6gA6Cm50qyNZ8xX6kF Ri6zYG5x7nhn/o/l569FDe+K5W/LDDaZUmvr858pPsrZZR5c4p3ylq+HBrZt0FPQ 70D+u7RcT5v3DQLTghNrgHHiOJ0/DQM43I7aZvkKM3JA8BCDou/Nvq+gH0C0YUP0 QE+oFK9C8CBPEz9N9cSMTb0+S78GQNB0GntJPDN3QQFCHRe6EYKUtu6CvllIE1v9 5pFfagXGVi9UmShu80v+qGGUILVK1ZJ5fjSyxx4UcneTsarNJZg7Y7d72mrX+0zi J3KodcqQi295jNq9P55K/9XtAiRdpRR6bQzXBtrprpw8PA94yqBHPpxbD32Wl05/ U2+ss/SNyMAzhsP9kqzxSxPBlTFek/ArxZm0Uk4kHt75gkl09CG64r+6OG8gLtwD Skkr02AeYvx6fx0kFnKIS4sc2c2/8xW3FUtHlv+TDPvuzCEaL0ooqsWgt7rcwlmg Xz5ufXbEIiVSlLlH/YGZxbgy+WfIzYA5WMpYrA1Givn8s5jI9Sm+ROD2qhOKA2n4 aekEDkum/bxVVeykZaXy =TSKG -----END PGP SIGNATURE----- Merge tag 'pm-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: "These are PM-runtime framework changes to use ktime instead of jiffies for accounting, new PM core flag to mark devices that don't need any form of power management, cpuidle updates including driver API documentation and a new governor, cpufreq updates including a new driver for Armada 8K, thermal cleanups and more, some energy-aware scheduling (EAS) enabling changes, new chips support in the intel_idle and RAPL drivers and assorted cleanups in some other places. Specifics: - Update the PM-runtime framework to use ktime instead of jiffies for accounting (Thara Gopinath, Vincent Guittot) - Optimize the autosuspend code in the PM-runtime framework somewhat (Ladislav Michl) - Add a PM core flag to mark devices that don't need any form of power management (Sudeep Holla) - Introduce driver API documentation for cpuidle and add a new cpuidle governor for tickless systems (Rafael Wysocki) - Add Jacobsville support to the intel_idle driver (Zhang Rui) - Clean up a cpuidle core header file and the cpuidle-dt and ACPI processor-idle drivers (Yangtao Li, Joseph Lo, Yazen Ghannam) - Add new cpufreq driver for Armada 8K (Gregory Clement) - Fix and clean up cpufreq core (Rafael Wysocki, Viresh Kumar, Amit Kucheria) - Add support for light-weight tear-down and bring-up of CPUs to the cpufreq core and use it in the cpufreq-dt driver (Viresh Kumar) - Fix cpu_cooling Kconfig dependencies, add support for CPU cooling auto-registration to the cpufreq core and use it in multiple cpufreq drivers (Amit Kucheria) - Fix some minor issues and do some cleanups in the davinci, e_powersaver, ap806, s5pv210, qcom and kryo cpufreq drivers (Bartosz Golaszewski, Gustavo Silva, Julia Lawall, Paweł Chmiel, Taniya Das, Viresh Kumar) - Add a Hisilicon CPPC quirk to the cppc_cpufreq driver (Xiongfeng Wang) - Clean up the intel_pstate and acpi-cpufreq drivers (Erwan Velu, Rafael Wysocki) - Clean up multiple cpufreq drivers (Yangtao Li) - Update cpufreq-related MAINTAINERS entries (Baruch Siach, Lukas Bulwahn) - Add support for exposing the Energy Model via debugfs and make multiple cpufreq drivers register an Energy Model to support energy-aware scheduling (Quentin Perret, Dietmar Eggemann, Matthias Kaehlcke) - Add Ice Lake mobile and Jacobsville support to the Intel RAPL power-capping driver (Gayatri Kammela, Zhang Rui) - Add a power estimation helper to the operating performance points (OPP) framework and clean up a core function in it (Quentin Perret, Viresh Kumar) - Make minor improvements in the generic power domains (genpd), OPP and system suspend frameworks and in the PM core (Aditya Pakki, Douglas Anderson, Greg Kroah-Hartman, Rafael Wysocki, Yangtao Li)" * tag 'pm-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (80 commits) cpufreq: kryo: Release OPP tables on module removal cpufreq: ap806: add missing of_node_put after of_device_is_available cpufreq: acpi-cpufreq: Report if CPU doesn't support boost technologies cpufreq: Pass updated policy to driver ->setpolicy() callback cpufreq: Fix two debug messages in cpufreq_set_policy() cpufreq: Reorder and simplify cpufreq_update_policy() cpufreq: Add kerneldoc comments for two core functions PM / core: Add support to skip power management in device/driver model cpufreq: intel_pstate: Rework iowait boosting to be less aggressive cpufreq: intel_pstate: Eliminate intel_pstate_get_base_pstate() cpufreq: intel_pstate: Avoid redundant initialization of local vars powercap/intel_rapl: add Ice Lake mobile ACPI / processor: Set P_LVL{2,3} idle state descriptions cpufreq / cppc: Work around for Hisilicon CPPC cpufreq ACPI / CPPC: Add a helper to get desired performance cpufreq: davinci: move configuration to include/linux/platform_data cpufreq: speedstep: convert BUG() to BUG_ON() cpufreq: powernv: fix missing check of return value in init_powernv_pstates() cpufreq: longhaul: remove unneeded semicolon cpufreq: pcc-cpufreq: remove unneeded semicolon .. |
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Tomasz Duszynski
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8c56eebc0d |
docs: driver-api: iio: fix errors in documentation
Improve IIO documentation by fixing a few mistakes. Signed-off-by: Tomasz Duszynski <tduszyns@gmail.com> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> |
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Uwe Kleine-König
|
9aac1e336c |
Documentation: gpio: legacy: Don't use POLLERR for poll(2)
According to the manpage of poll(2) and also looking at the respective syscall providing POLLERR in .events is a no-op. So don't recommend using it. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> |
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Daniel Vetter
|
86ab67dfcf |
drm/doc: document recommended component helper usage
Now that component has docs it's worth spending a few words and hyperlinks on recommended best practices in drm. v2: Add another item that component shouldn't be preferred over drm_bridge/panel and similar subsystems already providing specialized support for specific components (Laurent). Also convert to bullet list. Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Russell King - ARM Linux admin <linux@armlinux.org.uk> Reviewed-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190212164615.13370-1-daniel.vetter@ffwll.ch |
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Linus Walleij
|
8fab3d713c |
gpio updates for v5.1
- support for a new variant of pca953x - documentation fix from Wolfram - some tegra186 name changes - two minor fixes for madera and altera-a10sr -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEFp3rbAvDxGAT0sefEacuoBRx13IFAlxleLcACgkQEacuoBRx 13I45Q//YMGUYzkMjOL+lp2DYnnVhVNqrF4hoLjinWVrnhZ6gqu88RgV2Cea4Pta oxVxnSsE8LK7kY8VZ8tcBmIqLLkQAJdSVtqkeSoZF2vhWBAbE9ZaSOYb17SIkSXK Ok16lZgZ+ZWOM5EjEvuRpB/qYGjX2glD5/Y2Kl7+wsX1W6U2pXasP0IjhcvDU8mJ NXNgfkr6kluMUqHJyqKo8eT/P3Hdv0CK9GsN2vGyfJenCdTSd7EC6KuhWAivi+fG /lf1bVuc2cCiXjxdSOXx+Yz7SjNe56viTaqnn/K6OlfLgErjKnRW+AxPkTZXNtDi pfMMpPXiwPcbQR2wrXG/7OMmJ1kUsfWoIUCx5RDwhF1KbEQVqgaSITLylk+4Yp/3 eM0fYsQ+KvOdAnWKSgfxBhaaiO7z5XDdrnkSHBDoiBrm07BqBgK/v3Rivzf2GMEv QvM4OBfThS9I8skV5BaOBRDfHZs4N0EU/vhsW9gt50urtlSM0vSYx6kdMq/8R0k4 NkJT43u+1vi5koMljBAsZYZiyXOQ2B+PlfpTMfMu+93QH8wlu9mOt1r3YTQyA1Xf jiOK8M2yQKP5g7RuPM6MtMsqlZKDM5nAlSf7S280Z3+vBd+LaELbXvT2/JL5ViGU hfH/gaNwUGUYd8EsWvfhHVdPAAecDCwxfKyKEnFGhMrtunTgwfI= =nV64 -----END PGP SIGNATURE----- Merge tag 'gpio-v5.1-updates-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into devel gpio updates for v5.1 - support for a new variant of pca953x - documentation fix from Wolfram - some tegra186 name changes - two minor fixes for madera and altera-a10sr |
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Wolfram Sang
|
f3463daab2 |
Documentation: gpio: driver: fix wire name for I2C
Typo: the data line is called "SDA" not "SCA". Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> |
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Greg Kroah-Hartman
|
4417967bf2 |
typed componented support + i915/snd-hda changes
This is needed by the new MEI-HDCP support in i915, so will need to go in through drm and drivers-misc trees at least. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEb4nG6jLu8Y5XI+PfTA9ye/CYqnEFAlxhq5IACgkQTA9ye/CY qnE09xAAmLh7Jap/OizQOGdPvoPqH1n64sf36hmGuEbKSeZBasUc7ZP75FIBY/pr +y6oGLjRxYdvzVg8UJrNV4jDzyClgeeA9WyVEmEVwppgZGxXKNfCWRU/qB5zhhoA 3+SbnV6HuFOAem/nCqQHuEqUv0aF+8QGi8ifcUIVqgraDPNjcmFezj8naGq/3cS6 moFhHNIKsDdBctOk8R+cYe+hhPbNlzfvt5Kd9j0ksjDrQdf/kCWhOZ1YGfYAGqvY cXzjd4DA/5Gjh1afz1KIxB3TOEDSEWGYm3/QJo2U+pwqRglO39ky5vhL3yIjwwrt mvztd45rD9/+IoCyfT5DFJ7KkHRi9omT1OtVS/ndRoPFg3Uvt5k6J0Skz5KP1Nkr DeY3JT4CxKPl2//5p8cFexn+F8rd5uRE2y/Qb36I5GOIqj5etmZM2U+kI2c1mRDp Iiqci/7AhuvGofoTUzK3DvMAM/+zC9mptNA+g+eW63muqazwRCy2ZGqSe2/MXA18 739GoGllnYexQR9cJrqgMUUJZVcWvJJvadmScONxRfidQhqKeiCplLpPDNTZyhH6 58njXhfNS2BXGoOpFtgEmBaGpbTcEI2ZoBR/3U34L1Iial+Wo073RmOKRxtStaV8 uTefSKHhp50i9Qp5h3xfu0ySTWI/mtNGaqOHkRQYE5Dnl//9cBs= =IhHa -----END PGP SIGNATURE----- Merge tag 'topic/component-typed-2019-02-11' of git://anongit.freedesktop.org/drm/drm-intel into driver-core-next Daniel writes: typed componented support + i915/snd-hda changes This is needed by the new MEI-HDCP support in i915, so will need to go in through drm and drivers-misc trees at least. * tag 'topic/component-typed-2019-02-11' of git://anongit.freedesktop.org/drm/drm-intel: i915/snd_hdac: I915 subcomponent for the snd_hdac components: multiple components for a device component: Add documentation |
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Federico Vaga
|
db693aded3 |
doc:dmaengine: clarify DMA desc. pointer after submission
It clarifies that the DMA description pointer returned by `dmaengine_prep_*` function should not be used after submission. Signed-off-by: Federico Vaga <federico.vaga@cern.ch> Signed-off-by: Jonathan Corbet <corbet@lwn.net> |
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Federico Vaga
|
85ed4f43db |
Documentation :dmaengine: clarify DMA desc. pointer after submission
It clarifies that the DMA description pointer returned by `dmaengine_prep_*` function should not be used after submission. Signed-off-by: Federico Vaga <federico.vaga@cern.ch> Signed-off-by: Vinod Koul <vkoul@kernel.org> |
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Randy Dunlap
|
b29715966a |
Documentation: dmaengine: fix dmatest.rst warning
Fix markup warning: insert a blank line before the hint. Documentation/driver-api/dmaengine/dmatest.rst:63: WARNING: Unexpected indentation. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vkoul@kernel.org> |
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Randy Dunlap
|
a44aec0b4a |
Documenation: driver-api: fix gpio/board.rst warning
Fix markup warning: insert a blank line before the list. Documentation/driver-api/gpio/board.rst:209: WARNING: Unexpected indentation. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: linux-gpio@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> |
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Daniel Vetter
|
4d69c80e0d |
component: Add documentation
While typing these I think doing an s/component_master/aggregate/ would be useful: - it's shorter :-) - I think component/aggregate is much more meaningful naming than component/puppetmaster or something like that. At least to my English ear "aggregate" emphasizes much more the "assemble a pile of things into something bigger" aspect, and there's not really much of a control hierarchy between aggregate and constituing components. But that's way more than a quick doc typing exercise ... Thanks to Ram for commenting on an initial draft of these docs. v2: Review from Rafael: - git add Documenation/driver-api/component.rst - lots of polish to the wording + spelling fixes. v3: Review from Russell: - s/framework/helper - clarify the documentation for component_match_add functions. v4: Remove a few superflous "This". Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: "C, Ramalingam" <ramalingam.c@intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Rafael J. Wysocki <rafael@kernel.org> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190207232759.14553-1-daniel.vetter@ffwll.ch |
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Rafael J. Wysocki
|
70fb9a2523 |
driver core: Document limitation related to DL_FLAG_RPM_ACTIVE
If device_link_add() is called twice in a row to create a stateless device link for the same consumer-supplier pair without an attempt to delete the link between these calls, and the second caller passes DL_FLAG_RPM_ACTIVE to it in flags, calling either device_link_del() or device_link_remove() immediately after that will leave the link's supplier device with nonzero PM-runtime usage counter, which may prevent the supplier from being runtime-suspended going forward until the link is deleted by another invocation of device_link_del() or device_link_remove() for it. Even though this is confusing and may lead to subtle issues, trying to avoid it in the framework also may cause problems to appear, so document it as a known limitation. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Johannes Berg
|
7d4194633b |
mac80211: fix missing/malformed documentation
Fix the missing and malformed documentation that kernel-doc and sphinx warn about. While at it, also add some things to the docs to fix missing links. Sadly, the only way I could find to fix this was to add some trailing whitespace. Signed-off-by: Johannes Berg <johannes.berg@intel.com> |
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Rafael J. Wysocki
|
e7dd40105a |
driver core: Add device link flag DL_FLAG_AUTOPROBE_CONSUMER
Add a new device link flag, DL_FLAG_AUTOPROBE_CONSUMER, to request the driver core to probe for a consumer driver automatically after binding a driver to the supplier device on a persistent managed device link. As unbinding the supplier driver on a managed device link causes the consumer driver to be detached from its device automatically, this flag provides a complementary mechanism which is needed to address some "composite device" use cases. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Rafael J. Wysocki
|
72175d4ea4 |
driver core: Make driver core own stateful device links
Even though stateful device links are managed by the driver core in principle, their creators are allowed and sometimes even expected to drop references to them via device_link_del() or device_link_remove(), but that doesn't really play well with the "persistent" link concept. If "persistent" managed device links are created from driver probe callbacks, device_link_add() called to do that will take a new reference on the link each time the callback runs and those references will never be dropped, which kind of isn't nice. This issues arises because of the link reference counting carried out by device_link_add() for existing links, but that is only done to avoid deleting device links that may still be necessary, which shouldn't be a concern for managed (stateful) links. These device links are managed by the driver core and whoever creates one of them will need it at least as long as until the consumer driver is detached from its device and deleting it may be left to the driver core just fine. For this reason, rework device_link_add() to apply the reference counting to stateless links only and make device_link_del() and device_link_remove() drop references to stateless links only too. After this change, if called to add a stateful device link for a consumer-supplier pair for which a stateful device link is present already, device_link_add() will return the existing link without incrementing its reference counter. Accordingly, device_link_del() and device_link_remove() will WARN() and do nothing when called to drop a reference to a stateful link. Thus, effectively, all stateful device links will be owned by the driver core. In addition, clean up the handling of the link management flags, DL_FLAG_AUTOREMOVE_CONSUMER and DL_FLAG_AUTOREMOVE_SUPPLIER, so that (a) they are never set at the same time and (b) if device_link_add() is called for a consumer-supplier pair with an existing stateful link between them, the flags of that link will be combined with the flags passed to device_link_add() to ensure that the life time of the link is sufficient for all of the callers of device_link_add() for the same consumer-supplier pair. Update the device_link_add() kerneldoc comment to reflect the above changes. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Rafael J. Wysocki
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15cfb09416 |
driver core: Fix adding device links to probing suppliers
Currently, it is not valid to add a device link from a consumer driver ->probe callback to a supplier that is still probing too, but generally this is a valid use case. For example, if the consumer has just acquired a resource that can only be available if the supplier is functional, adding a device link to that supplier right away should be safe (and even desirable arguably), but device_link_add() doesn't handle that case correctly and the initial state of the link created by it is wrong then. To address this problem, change the initial state of device links added between a probing supplier and a probing consumer to DL_STATE_CONSUMER_PROBE and update device_links_driver_bound() to skip such links on the supplier side. With this change, if the supplier probe completes first, device_links_driver_bound() called for it will skip the link state update and when it is called for the consumer, the link state will be updated to "active". In turn, if the consumer probe completes first, device_links_driver_bound() called for it will change the state of the link to "active" and when it is called for the supplier, the link status update will be skipped. However, in principle the supplier or consumer probe may still fail after the link has been added, so modify device_links_no_driver() to change device links in the "active" or "consumer probe" state to "dormant" on the supplier side and update __device_links_no_driver() to change the link state to "available" only if it is "consumer probe" or "active". Then, if the supplier probe fails first, the leftover link to the probing consumer will become "dormant" and device_links_no_driver() called for the consumer (when its probe fails) will clean it up. In turn, if the consumer probe fails first, it will either drop the link, or change its state to "available" and, in the latter case, when device_links_no_driver() is called for the supplier, it will update the link state to "dormant". [If the supplier probe fails, but the consumer probe succeeds, which should not happen as long as the consumer driver is correct, the link still will be around, but it will be "dormant" until the supplier is probed again.] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Ramon Fried
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127428356e |
pinctrl.txt: Remove outdated information
Returning -EAGAIN is no longer supported by pin_config_group_set()
since
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Rafael J. Wysocki
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3b7357663a |
Documentation: driver-api: PM: Add cpuidle document
Replace the remaining documents under Documentation/cpuidle/ with one more complete governor and driver API document for cpuidle under Documentation/driver-api/pm/. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> |
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Linus Torvalds
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926b02d3eb |
pci-v4.21-changes
-----BEGIN PGP SIGNATURE----- iQJIBAABCgAyFiEEgMe7l+5h9hnxdsnuWYigwDrT+vwFAlwtMCIUHGJoZWxnYWFz QGdvb2dsZS5jb20ACgkQWYigwDrT+vwQUQ/+P5/VDpo4abjudGO2c7FU1bJOwvfN cfV5dvDCw0kpx0Em5SmnpAD7Punllxxvb/04K75lqarGyx/Txqaw+lbIF+qSj6my GsQ16Iy8T48x5hr+Pf6vTh1eE+NaAVZfOPDOt7CyTNAgwfzHeVNyfNvz7pfKTIIJ Mk/jRE4kkeWo60jsY5p3sFo3OVOxBOsRdN+2sruaQuWFXrKHLyNDR+7Z9ZPxubFk cCO/TYPhNXmmKhCAR4V/rGiqz9OL2wyFixGhGhmD3tnC9nAb/wTMzjARsyBopBPi b/KkR2eLFEyXN0HJrwqxiURo4J3nveAYEuNXH5KjRBQZnoBCGSCIlqFhlrp9vdBk B4KIdT8h/M6LsVGeVSEIxIEXCp67YE31kxraFrk4Vsggdh2TFQ0llh1sajj8IFJB XekutedAOlTSOaM1/jvVPUJYg04X90bp3uXn3IU45XlQ8nBOG3immFVITRLkvd3w ywH+SEdeZAhWl3RGy8SHhqdeCJ7nNQbcRaRJ5CoWJBDNJTBGF1X+zJD2Swi6H9vA nWGNRlb3CPPIMPF127nADnOE7Cj2FlpAEIEu52HpcpIrhEdrGvLkGeQfgdWBjbyU aHwC04bLWnvsA9SEFVnuMIBaFQmJ1RuaWAHdtscyyO2uoeCtN8Aa+BX6jXFbVZQN 9eFzpiv0kUiXlAQ= =g1ia -----END PGP SIGNATURE----- Merge tag 'pci-v4.21-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: - Remove unused lists from ASPM pcie_link_state (Frederick Lawler) - Fix Broadcom CNB20LE host bridge unintended sign extension (Colin Ian King) - Expand Kconfig "PF" acronyms (Randy Dunlap) - Update MAINTAINERS for arch/x86/kernel/early-quirks.c (Bjorn Helgaas) - Add missing include to drivers/pci.h (Alexandru Gagniuc) - Override Synopsys USB 3.x HAPS device class so dwc3-haps can claim it instead of xhci (Thinh Nguyen) - Clean up P2PDMA documentation (Randy Dunlap) - Allow runtime PM even if driver doesn't supply callbacks (Jarkko Nikula) - Remove status check after submitting Switchtec MRPC Firmware Download commands to avoid Completion Timeouts (Kelvin Cao) - Set Switchtec coherent DMA mask to allow 64-bit DMA (Boris Glimcher) - Fix Switchtec SWITCHTEC_IOCTL_EVENT_IDX_ALL flag overwrite issue (Joey Zhang) - Enable write combining for Switchtec MRPC Input buffers (Kelvin Cao) - Add Switchtec MRPC DMA mode support (Wesley Sheng) - Skip VF scanning on powerpc, which does this in firmware (Sebastian Ott) - Add Amlogic Meson PCIe controller driver and DT bindings (Yue Wang) - Constify histb dw_pcie_host_ops structure (Julia Lawall) - Support multiple power domains for imx6 (Leonard Crestez) - Constify layerscape driver data (Stefan Agner) - Update imx6 Kconfig to allow imx6 PCIe in imx7 kernel (Trent Piepho) - Support armada8k GPIO reset (Baruch Siach) - Support suspend/resume support on imx6 (Leonard Crestez) - Don't hard-code DesignWare DBI/ATU offst (Stephen Warren) - Skip i.MX6 PHY setup on i.MX7D (Andrey Smirnov) - Remove Jianguo Sun from HiSilicon STB maintainers (Lorenzo Pieralisi) - Mask DesignWare interrupts instead of disabling them to avoid lost interrupts (Marc Zyngier) - Add locking when acking DesignWare interrupts (Marc Zyngier) - Ack DesignWare interrupts in the proper callbacks (Marc Zyngier) - Use devm resource parser in mediatek (Honghui Zhang) - Remove unused mediatek "num-lanes" DT property (Honghui Zhang) - Add UniPhier PCIe controller driver and DT bindings (Kunihiko Hayashi) - Enable MSI for imx6 downstream components (Richard Zhu) * tag 'pci-v4.21-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (40 commits) PCI: imx: Enable MSI from downstream components s390/pci: skip VF scanning PCI/IOV: Add flag so platforms can skip VF scanning PCI/IOV: Factor out sriov_add_vfs() PCI: uniphier: Add UniPhier PCIe host controller support dt-bindings: PCI: Add UniPhier PCIe host controller description PCI: amlogic: Add the Amlogic Meson PCIe controller driver dt-bindings: PCI: meson: add DT bindings for Amlogic Meson PCIe controller arm64: dts: mt7622: Remove un-used property for PCIe arm: dts: mt7623: Remove un-used property for PCIe dt-bindings: PCI: MediaTek: Remove un-used property PCI: mediatek: Remove un-used variant in struct mtk_pcie_port MAINTAINERS: Remove Jianguo Sun from HiSilicon STB DWC entry PCI: dwc: Don't hard-code DBI/ATU offset PCI: imx: Add imx6sx suspend/resume support PCI: armada8k: Add support for gpio controlled reset signal PCI: dwc: Adjust Kconfig to allow IMX6 PCIe host on IMX7 PCI: dwc: layerscape: Constify driver data PCI: imx: Add multi-pd support PCI: Override Synopsys USB 3.x HAPS device class ... |
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Linus Torvalds
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78e8696c23 |
dmaengine-4.21-rc1
dmaengine updates for v4.21-rc1 - New driver for UniPhier MIO DMA controller - Remove R-Mobile APE6 support - Sprd driver updates and support for cyclic link-list - Remove dma_slave_config direction usage from rest of drivers - Minor updates to dmatest, dw-dmac, zynqmp and bcm dma drivers -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJcKipaAAoJEHwUBw8lI4NH87kQAJF5tSQzvh4alAwntJ+rNZfw bgiUW29f7PxEzEGDsTBuFsw9zPhGxPnwtXzLm2iSDBGqkEcwKc+yretuX3Pgkce+ IpPkCBGcfXptSJxFz4XxBi3HCkZ+jlhy33pH+hkW/tA4SIcA+VJjfQLePiY3sVMO 1QUFDaL9NEyEfgJTmUShaPvCiz+3OHjY/3LAMlbLqQer4C9zC3iyvZIf9lvPQQnt qJaFuEiqlhw6eOAGw+2frMYDEV57QEiRgghBZyFm5RxG19XCcPkVV9id22rz5TQb +mQXhyaLvDiztWf71dFlXW2nW8mjewcjNU4h5g3RTyLA7fpLNcpMyZY2WizIADVS x6a7/HSrDjD4CN6pGDmRi8vvqkTAEDCsrfUM6K43rAsoZzU5elVJwOv4m8WB3CCF pRlUwFi6ENt8Ov8CWgCCaY0/Bzj1FgjN3BY87amBsI9wF4fkpCPNdWw34a6lg1Kf SzyPty8Z+i+6rtKps7Mh9VOZI2tryPJzyAWrcOCDWQoiR/RWzgC3y6SuwCdiyaDf 8hFV4xnB0oVJ8vsTjF1AgxVwEsqQ7TVTIsLAns6jEnTC5FAnOLd0iwh56a+rw+lR 7e1iuQYllZ1rdMi+r5gWG4OCsZehmZgCqc250om51tzA1SDVDQ3bbx8clxZeha80 AKr5MVrIVp7riYFEICvp =+pTt -----END PGP SIGNATURE----- Merge tag 'dmaengine-4.21-rc1' of git://git.infradead.org/users/vkoul/slave-dma Pull dmaengine updates from Vinod Koul: "This includes a new driver, removes R-Mobile APE6 as it is no longer used, sprd cyclic dma support, last batch of dma_slave_config direction removal and random updates to bunch of drivers. Summary: - New driver for UniPhier MIO DMA controller - Remove R-Mobile APE6 support - Sprd driver updates and support for cyclic link-list - Remove dma_slave_config direction usage from rest of drivers - Minor updates to dmatest, dw-dmac, zynqmp and bcm dma drivers" * tag 'dmaengine-4.21-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (48 commits) dmaengine: qcom_hidma: convert to DEFINE_SHOW_ATTRIBUTE dmaengine: pxa: remove DBGFS_FUNC_DECL() dmaengine: mic_x100_dma: convert to DEFINE_SHOW_ATTRIBUTE dmaengine: amba-pl08x: convert to DEFINE_SHOW_ATTRIBUTE dmaengine: Documentation: Add documentation for multi chan testing dmaengine: dmatest: Add transfer_size parameter dmaengine: dmatest: Add alignment parameter dmaengine: dmatest: Use fixed point div to calculate iops dmaengine: dmatest: Add support for multi channel testing dmaengine: rcar-dmac: Document R8A774C0 bindings dt-bindings: dmaengine: usb-dmac: Add binding for r8a774c0 dmaengine: zynqmp_dma: replace spin_lock_bh with spin_lock_irqsave dmaengine: sprd: Add me as one of the module authors dmaengine: sprd: Support DMA 2-stage transfer mode dmaengine: sprd: Support DMA link-list cyclic callback dmaengine: sprd: Set cur_desc as NULL when free or terminate one dma channel dmaengine: sprd: Fix the last link-list configuration dmaengine: sprd: Get transfer residue depending on the transfer direction dmaengine: sprd: Remove direction usage from struct dma_slave_config dmaengine: dmatest: fix a small memory leak in dmatest_func() ... |
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Linus Torvalds
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3868772b99 |
A fairly normal cycle for documentation stuff. We have a new
document on perf security, more Italian translations, more improvements to the memory-management docs, improvements to the pathname lookup documentation, and the usual array of smaller fixes. -----BEGIN PGP SIGNATURE----- iQFDBAABCAAtFiEEIw+MvkEiF49krdp9F0NaE2wMflgFAlwmSPkPHGNvcmJldEBs d24ubmV0AAoJEBdDWhNsDH5Y9ZoH/joPnMFykOxS0SmdfI7Z+F4EiJct/ZwF9bHx T673T0RC30IgnUXGmBl5OtktfWqVh9aGqHOGwgh65ybp2QvzemdP0k6Lu6RtwNk9 6LfkpvuUb8FzaQmCHnSMzMSDmXtZUw3Z/mOjCBcQtfGAsUULNT08xl+Dr+gwWIWt H+gPEEP+MCXTOQO1jm2dHOHW8NGm6XOijMTpOxp/pkoEY5tUxkVB1T//8EeX7LVh c1QHzFrufE3bmmubCLtIuyVqZbm/V5l6rHREDQ46fnH/G9fM4gojzsrAL/Y2m4bt E4y0XJHycjLMRDimAnYhbPm1ryTFAX1lNzHP3M/EF6Heqx8YHAk= =vtwu -----END PGP SIGNATURE----- Merge tag 'docs-5.0' of git://git.lwn.net/linux Pull documentation update from Jonathan Corbet: "A fairly normal cycle for documentation stuff. We have a new document on perf security, more Italian translations, more improvements to the memory-management docs, improvements to the pathname lookup documentation, and the usual array of smaller fixes. As is often the case, there are a few reaches outside of Documentation/ to adjust kerneldoc comments" * tag 'docs-5.0' of git://git.lwn.net/linux: (38 commits) docs: improve pathname-lookup document structure configfs: fix wrong name of struct in documentation docs/mm-api: link slab_common.c to "The Slab Cache" section slab: make kmem_cache_create{_usercopy} description proper kernel-doc doc:process: add links where missing docs/core-api: make mm-api.rst more structured x86, boot: documentation whitespace fixup Documentation: devres: note checking needs when converting doc🇮🇹 add some process/* translations doc🇮🇹 fixes in process/1.Intro Documentation: convert path-lookup from markdown to resturctured text Documentation/admin-guide: update admin-guide index.rst Documentation/admin-guide: introduce perf-security.rst file scripts/kernel-doc: Fix struct and struct field attribute processing Documentation: dev-tools: Fix typos in index.rst Correct gen_init_cpio tool's documentation Document /proc/pid PID reuse behavior Documentation: update path-lookup.md for parallel lookups Documentation: Use "while" instead of "whilst" dmaengine: Add mailing list address to the documentation ... |
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Linus Torvalds
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457fa3469a |
Char/Misc driver patches for 4.21-rc1
Here is the big set of char and misc driver patches for 4.21-rc1. Lots of different types of driver things in here, as this tree seems to be the "collection of various driver subsystems not big enough to have their own git tree" lately. Anyway, some highlights of the changes in here: - binderfs: is it a rule that all driver subsystems will eventually grow to have their own filesystem? Binder now has one to handle the use of it in containerized systems. This was discussed at the Plumbers conference a few months ago and knocked into mergable shape very fast by Christian Brauner. Who also has signed up to be another binder maintainer, showing a distinct lack of good judgement :) - binder updates and fixes - mei driver updates - fpga driver updates and additions - thunderbolt driver updates - soundwire driver updates - extcon driver updates - nvmem driver updates - hyper-v driver updates - coresight driver updates - pvpanic driver additions and reworking for more device support - lp driver updates. Yes really, it's _finally_ moved to the proper parallal port driver model, something I never thought I would see happen. Good stuff. - other tiny driver updates and fixes. All of these have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXCZCUA8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ymF9QCgx/Z8Fj1qzGVGrIE4flXOi7pxOrgAoMqJEWtU ywwL8M9suKDz7cZT9fWQ =xxr6 -----END PGP SIGNATURE----- Merge tag 'char-misc-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the big set of char and misc driver patches for 4.21-rc1. Lots of different types of driver things in here, as this tree seems to be the "collection of various driver subsystems not big enough to have their own git tree" lately. Anyway, some highlights of the changes in here: - binderfs: is it a rule that all driver subsystems will eventually grow to have their own filesystem? Binder now has one to handle the use of it in containerized systems. This was discussed at the Plumbers conference a few months ago and knocked into mergable shape very fast by Christian Brauner. Who also has signed up to be another binder maintainer, showing a distinct lack of good judgement :) - binder updates and fixes - mei driver updates - fpga driver updates and additions - thunderbolt driver updates - soundwire driver updates - extcon driver updates - nvmem driver updates - hyper-v driver updates - coresight driver updates - pvpanic driver additions and reworking for more device support - lp driver updates. Yes really, it's _finally_ moved to the proper parallal port driver model, something I never thought I would see happen. Good stuff. - other tiny driver updates and fixes. All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (116 commits) MAINTAINERS: add another Android binder maintainer intel_th: msu: Fix an off-by-one in attribute store stm class: Add a reference to the SyS-T document stm class: Fix a module refcount leak in policy creation error path char: lp: use new parport device model char: lp: properly count the lp devices char: lp: use first unused lp number while registering char: lp: detach the device when parallel port is removed char: lp: introduce list to save port number bus: qcom: remove duplicated include from qcom-ebi2.c VMCI: Use memdup_user() rather than duplicating its implementation char/rtc: Use of_node_name_eq for node name comparisons misc: mic: fix a DMA pool free failure ptp: fix an IS_ERR() vs NULL check genwqe: Fix size check binder: implement binderfs binder: fix use-after-free due to ksys_close() during fdget() bus: fsl-mc: remove duplicated include files bus: fsl-mc: explicitly define the fsl_mc_command endianness misc: ti-st: make array read_ver_cmd static, shrinks object size ... |