1. 24 Jul, 2018 6 commits
    • Krzysztof Kozlowski's avatar
      pinctrl: samsung: Write external wakeup interrupt mask · a8be2af0
      Krzysztof Kozlowski authored
      The pinctrl driver defines an IRQ chip which handles external wakeup
      interrupts, therefore from logical point of view, it is the owner of
      external interrupt mask.  The register controlling the mask belongs to
      Power Management Unit address space so it has to be accessed with PMU
      syscon regmap handle.
      
      This mask should be written to hardware during system suspend.  Till now
      ARMv7 machine code was responsible for this which created a dependency
      between pin controller driver and arch/arm/mach code.
      
      Try to rework this dependency so the pinctrl driver will write external
      wakeup interrupt mask during late suspend.
      
      Impact on ARMv7 designs (S5Pv210 and Exynos)
      ============================================
      This duplicates setting mask with existing machine code
      arch/arm/mach-exynos/suspend.c and arch/arm/mach-s5pv210/pm.c but it is
      not a problem - the wakeup mask register will be written twice.  The
      machine code will be cleaned up later.
      
      The difference between implementation here and ARMv7 machine code
      (arch/arm/mach-*) is the time of writing the mask:
      1. The machine code is writing the mask quite late during system suspend
         path, after offlining secondary CPUs and just before doing actual
         suspend.
      2. The implementation in pinctrl driver uses late suspend ops, therefore it
         will write the mask much earlier.  Hopefully late enough, after all
         drivers will enable or disable their interrupt wakeups
         (enable_irq_wake() etc).
      
      Impact on ARMv8 designs (Exynos5433 and Exynos7)
      ================================================
      The Suspend to RAM was not supported and external wakeup interrupt mask
      was not written to HW.  This change brings us one step closer to
      supporting Suspend to RAM.
      Signed-off-by: default avatarKrzysztof Kozlowski <krzk@kernel.org>
      Cc: Tomasz Figa <tomasz.figa@gmail.com>
      Cc: Sylwester Nawrocki <snawrocki@kernel.org>
      Acked-by: default avatarTomasz Figa <tomasz.figa@gmail.com>
      Tested-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
      a8be2af0
    • Krzysztof Kozlowski's avatar
      ARM: exynos: Define EINT_WAKEUP_MASK registers for S5Pv210 and Exynos5433 · e5cda42c
      Krzysztof Kozlowski authored
      S5Pv210 and Exynos5433/Exynos7 have different address of
      EINT_WAKEUP_MASK register.  Rename existing S5P_EINT_WAKEUP_MASK to
      avoid confusion and add new ones.
      Signed-off-by: default avatarKrzysztof Kozlowski <krzk@kernel.org>
      Cc: Tomasz Figa <tomasz.figa@gmail.com>
      Cc: Sylwester Nawrocki <snawrocki@kernel.org>
      Acked-by: default avatarTomasz Figa <tomasz.figa@gmail.com>
      Tested-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
      e5cda42c
    • Krzysztof Kozlowski's avatar
      pinctrl: samsung: Add dedicated compatible for S5Pv210 wakeup interrupts · bb928dfd
      Krzysztof Kozlowski authored
      The S5Pv210 external wakeup interrupts differ from Exynos therefore
      separate compatible is needed.  Duplicate existing flavor specific data
      from exynos4210_wkup_irq_chip and add new compatible for S5Pv210.
      At this point this new compatible does not bring anything new and works
      exactly as existing "samsung,exynos4210-wakeup-eint".
      Signed-off-by: default avatarKrzysztof Kozlowski <krzk@kernel.org>
      Cc: Tomasz Figa <tomasz.figa@gmail.com>
      Cc: Sylwester Nawrocki <snawrocki@kernel.org>
      Acked-by: default avatarTomasz Figa <tomasz.figa@gmail.com>
      Tested-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
      bb928dfd
    • Krzysztof Kozlowski's avatar
      pinctrl: samsung: Document hidden requirement about one external wakeup · 615a673c
      Krzysztof Kozlowski authored
      ARMv7 hardware (S5Pv210 and Exynos SoCs) provides only 32 external
      interrupts which can wakeup device from deep sleep modes.  On S5Pv210
      these are gph0-gph3.  On all ARMv7 Exynos designs these are gpx0-gpx3.
      There is only one 32-bit register for controlling the external wakeup
      interrupt mask (masking and unmasking waking capability of these
      interrupts).
      
      This lead to implementation in pinctrl driver and machine code which was
      using static memory for storing the mask value and not caring about
      multiple devices of pin controller... because only one pin controller
      device will be handling this.
      
      Since each pin controller node in Device Tree maps onto one device, this
      corresponds to hidden assumption in parsing the Device Tree: external
      wakeup interrupts can be defined only once.  Make this assumption an
      explicit requirement.
      
      ARMv8 Exynos5433 and Exynos7 bring additional 32 external wakeup
      interrupts (up to 64 total, banks gpa0-gpa3 and gpf1-gpf5) and another
      32-bit wide register for controlling them.  Existing code does not
      support it but anyway these additional interrupts will be belonging to
      the same pin controller device/node.
      Signed-off-by: default avatarKrzysztof Kozlowski <krzk@kernel.org>
      Cc: Tomasz Figa <tomasz.figa@gmail.com>
      Cc: Sylwester Nawrocki <snawrocki@kernel.org>
      Acked-by: default avatarTomasz Figa <tomasz.figa@gmail.com>
      Tested-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
      615a673c
    • Krzysztof Kozlowski's avatar
      pinctrl: samsung: Document suspend and resume members · 00d6fff3
      Krzysztof Kozlowski authored
      Add missing documentation for suspend and resume members of struct
      samsung_pin_ctrl and samsung_pinctrl_drv_data.
      Signed-off-by: default avatarKrzysztof Kozlowski <krzk@kernel.org>
      Cc: Tomasz Figa <tomasz.figa@gmail.com>
      Cc: Sylwester Nawrocki <snawrocki@kernel.org>
      Acked-by: default avatarTomasz Figa <tomasz.figa@gmail.com>
      Tested-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
      00d6fff3
    • Krzysztof Kozlowski's avatar
      pinctrl: samsung: Define suspend and resume callbacks for all banks and SoCs · cafec5a7
      Krzysztof Kozlowski authored
      Suspend and resume callbacks in Exynos/S5Pv210 pin controller drivers,
      save and restore state of registers.  This operations should be done for
      all banks which have external interrupts (as denoted by using
      EXYNOS_PIN_BANK_EINTG/EINTW macros).
      
      Add all banks of Exynos5260 and Exynos5420.  This is necessary step for
      supporting suspend to RAM on these SoCs.
      Signed-off-by: default avatarKrzysztof Kozlowski <krzk@kernel.org>
      Cc: Tomasz Figa <tomasz.figa@gmail.com>
      Cc: Sylwester Nawrocki <snawrocki@kernel.org>
      Acked-by: default avatarTomasz Figa <tomasz.figa@gmail.com>
      Tested-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
      cafec5a7
  2. 16 Jun, 2018 8 commits
    • Linus Torvalds's avatar
      Linux 4.18-rc1 · ce397d21
      Linus Torvalds authored
      ce397d21
    • Linus Torvalds's avatar
      Merge tag 'for-linus-20180616' of git://git.kernel.dk/linux-block · 265c5596
      Linus Torvalds authored
      Pull block fixes from Jens Axboe:
       "A collection of fixes that should go into -rc1. This contains:
      
         - bsg_open vs bsg_unregister race fix (Anatoliy)
      
         - NVMe pull request from Christoph, with fixes for regressions in
           this window, FC connect/reconnect path code unification, and a
           trace point addition.
      
         - timeout fix (Christoph)
      
         - remove a few unused functions (Christoph)
      
         - blk-mq tag_set reinit fix (Roman)"
      
      * tag 'for-linus-20180616' of git://git.kernel.dk/linux-block:
        bsg: fix race of bsg_open and bsg_unregister
        block: remov blk_queue_invalidate_tags
        nvme-fabrics: fix and refine state checks in __nvmf_check_ready
        nvme-fabrics: handle the admin-only case properly in nvmf_check_ready
        nvme-fabrics: refactor queue ready check
        blk-mq: remove blk_mq_tagset_iter
        nvme: remove nvme_reinit_tagset
        nvme-fc: fix nulling of queue data on reconnect
        nvme-fc: remove reinit_request routine
        blk-mq: don't time out requests again that are in the timeout handler
        nvme-fc: change controllers first connect to use reconnect path
        nvme: don't rely on the changed namespace list log
        nvmet: free smart-log buffer after use
        nvme-rdma: fix error flow during mapping request data
        nvme: add bio remapping tracepoint
        nvme: fix NULL pointer dereference in nvme_init_subsystem
        blk-mq: reinit q->tag_set_list entry only after grace period
      265c5596
    • Linus Torvalds's avatar
      Merge tag 'docs-broken-links' of git://linuxtv.org/mchehab/experimental · 5e7b9212
      Linus Torvalds authored
      Pull documentation fixes from Mauro Carvalho Chehab:
       "This solves a series of broken links for files under Documentation,
        and improves a script meant to detect such broken links (see
        scripts/documentation-file-ref-check).
      
        The changes on this series are:
      
         - can.rst: fix a footnote reference;
      
         - crypto_engine.rst: Fix two parsing warnings;
      
         - Fix a lot of broken references to Documentation/*;
      
         - improve the scripts/documentation-file-ref-check script, in order
           to help detecting/fixing broken references, preventing
           false-positives.
      
        After this patch series, only 33 broken references to doc files are
        detected by scripts/documentation-file-ref-check"
      
      * tag 'docs-broken-links' of git://linuxtv.org/mchehab/experimental: (26 commits)
        fix a series of Documentation/ broken file name references
        Documentation: rstFlatTable.py: fix a broken reference
        ABI: sysfs-devices-system-cpu: remove a broken reference
        devicetree: fix a series of wrong file references
        devicetree: fix name of pinctrl-bindings.txt
        devicetree: fix some bindings file names
        MAINTAINERS: fix location of DT npcm files
        MAINTAINERS: fix location of some display DT bindings
        kernel-parameters.txt: fix pointers to sound parameters
        bindings: nvmem/zii: Fix location of nvmem.txt
        docs: Fix more broken references
        scripts/documentation-file-ref-check: check tools/*/Documentation
        scripts/documentation-file-ref-check: get rid of false-positives
        scripts/documentation-file-ref-check: hint: dash or underline
        scripts/documentation-file-ref-check: add a fix logic for DT
        scripts/documentation-file-ref-check: accept more wildcards at filenames
        scripts/documentation-file-ref-check: fix help message
        media: max2175: fix location of driver's companion documentation
        media: v4l: fix broken video4linux docs locations
        media: dvb: point to the location of the old README.dvb-usb file
        ...
      5e7b9212
    • Linus Torvalds's avatar
      Merge tag 'fsnotify_for_v4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs · dbb2816f
      Linus Torvalds authored
      Pull fsnotify updates from Jan Kara:
       "fsnotify cleanups unifying handling of different watch types.
      
        This is the shortened fsnotify series from Amir with the last five
        patches pulled out. Amir has modified those patches to not change
        struct inode but obviously it's too late for those to go into this
        merge window"
      
      * tag 'fsnotify_for_v4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
        fsnotify: add fsnotify_add_inode_mark() wrappers
        fanotify: generalize fanotify_should_send_event()
        fsnotify: generalize send_to_group()
        fsnotify: generalize iteration of marks by object type
        fsnotify: introduce marks iteration helpers
        fsnotify: remove redundant arguments to handle_event()
        fsnotify: use type id to identify connector object type
      dbb2816f
    • Linus Torvalds's avatar
      Merge tag 'fbdev-v4.18' of git://github.com/bzolnier/linux · 644f2639
      Linus Torvalds authored
      Pull fbdev updates from Bartlomiej Zolnierkiewicz:
       "There is nothing really major here, few small fixes, some cleanups and
        dead drivers removal:
      
         - mark omapfb drivers as orphans in MAINTAINERS file (Tomi Valkeinen)
      
         - add missing module license tags to omap/omapfb driver (Arnd
           Bergmann)
      
         - add missing GPIOLIB dependendy to omap2/omapfb driver (Arnd
           Bergmann)
      
         - convert savagefb, aty128fb & radeonfb drivers to use msleep & co.
           (Jia-Ju Bai)
      
         - allow COMPILE_TEST build for viafb driver (media part was reviewed
           by media subsystem Maintainer)
      
         - remove unused MERAM support from sh_mobile_lcdcfb and shmob-drm
           drivers (drm parts were acked by shmob-drm driver Maintainer)
      
         - remove unused auo_k190xfb drivers
      
         - misc cleanups (Souptick Joarder, Wolfram Sang, Markus Elfring, Andy
           Shevchenko, Colin Ian King)"
      
      * tag 'fbdev-v4.18' of git://github.com/bzolnier/linux: (26 commits)
        fb_omap2: add gpiolib dependency
        video/omap: add module license tags
        MAINTAINERS: make omapfb orphan
        video: fbdev: pxafb: match_string() conversion fixup
        video: fbdev: nvidia: fix spelling mistake: "scaleing" -> "scaling"
        video: fbdev: fix spelling mistake: "frambuffer" -> "framebuffer"
        video: fbdev: pxafb: Convert to use match_string() helper
        video: fbdev: via: allow COMPILE_TEST build
        video: fbdev: remove unused sh_mobile_meram driver
        drm: shmobile: remove unused MERAM support
        video: fbdev: sh_mobile_lcdcfb: remove unused MERAM support
        video: fbdev: remove unused auo_k190xfb drivers
        video: omap: Improve a size determination in omapfb_do_probe()
        video: sm501fb: Improve a size determination in sm501fb_probe()
        video: fbdev-MMP: Improve a size determination in path_init()
        video: fbdev-MMP: Delete an error message for a failed memory allocation in two functions
        video: auo_k190x: Delete an error message for a failed memory allocation in auok190x_common_probe()
        video: sh_mobile_lcdcfb: Delete an error message for a failed memory allocation in two functions
        video: sh_mobile_meram: Delete an error message for a failed memory allocation in sh_mobile_meram_probe()
        video: fbdev: sh_mobile_meram: Drop SUPERH platform dependency
        ...
      644f2639
    • Linus Torvalds's avatar
      Merge branch 'afs-proc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · 35773c93
      Linus Torvalds authored
      Pull AFS updates from Al Viro:
       "Assorted AFS stuff - ended up in vfs.git since most of that consists
        of David's AFS-related followups to Christoph's procfs series"
      
      * 'afs-proc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
        afs: Optimise callback breaking by not repeating volume lookup
        afs: Display manually added cells in dynamic root mount
        afs: Enable IPv6 DNS lookups
        afs: Show all of a server's addresses in /proc/fs/afs/servers
        afs: Handle CONFIG_PROC_FS=n
        proc: Make inline name size calculation automatic
        afs: Implement network namespacing
        afs: Mark afs_net::ws_cell as __rcu and set using rcu functions
        afs: Fix a Sparse warning in xdr_decode_AFSFetchStatus()
        proc: Add a way to make network proc files writable
        afs: Rearrange fs/afs/proc.c to remove remaining predeclarations.
        afs: Rearrange fs/afs/proc.c to move the show routines up
        afs: Rearrange fs/afs/proc.c by moving fops and open functions down
        afs: Move /proc management functions to the end of the file
      35773c93
    • Linus Torvalds's avatar
      Merge branch 'work.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · 29d6849d
      Linus Torvalds authored
      Pull compat updates from Al Viro:
       "Some biarch patches - getting rid of assorted (mis)uses of
        compat_alloc_user_space().
      
        Not much in that area this cycle..."
      
      * 'work.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
        orangefs: simplify compat ioctl handling
        signalfd: lift sigmask copyin and size checks to callers of do_signalfd4()
        vmsplice(): lift importing iovec into vmsplice(2) and compat counterpart
      29d6849d
    • Linus Torvalds's avatar
      Merge branch 'work.aio' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · a5b729ea
      Linus Torvalds authored
      Pull aio fixes from Al Viro:
       "Assorted AIO followups and fixes"
      
      * 'work.aio' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
        eventpoll: switch to ->poll_mask
        aio: only return events requested in poll_mask() for IOCB_CMD_POLL
        eventfd: only return events requested in poll_mask()
        aio: mark __aio_sigset::sigmask const
      a5b729ea
  3. 15 Jun, 2018 26 commits