1. 20 Aug, 2018 2 commits
  2. 12 Jul, 2018 1 commit
  3. 09 Jul, 2018 9 commits
    • shenwei.wang@nxp.com's avatar
      dt-bindings: pwm: fsl-ftm: Add compatible string for i.MX8QM · c99d64d8
      shenwei.wang@nxp.com authored
      i.MX8QM integrates a new version of FTM IP block. It adds eight PWM
      enable bits in FTM_SC register.
      
      Add a new compatible string of "fsl,imx8qm-ftm-pwm" for i.MX8QM to
      differentiate it from the previous SoCs.
      Signed-off-by: default avatarShenwei Wang <shenwei.wang@nxp.com>
      Signed-off-by: default avatarThierry Reding <thierry.reding@gmail.com>
      c99d64d8
    • shenwei.wang@nxp.com's avatar
      pwm: fsl-ftm: Enable support for the new SoC i.MX8QM · 2c4f2e32
      shenwei.wang@nxp.com authored
      Enabled the support for the new SoC i.MX8QM by adding the compatible
      string of "fsl,imx8qm-ftm-pwm" and its per-compatible data with setting
      "has_enable_bits" to "true".
      Signed-off-by: default avatarShenwei Wang <shenwei.wang@nxp.com>
      Signed-off-by: default avatarThierry Reding <thierry.reding@gmail.com>
      2c4f2e32
    • shenwei.wang@nxp.com's avatar
      pwm: fsl-ftm: Added the support of per-compatible data · db6c51ab
      shenwei.wang@nxp.com authored
      On the i.MX8x SoC family, an additional PWM enable bit is added for each
      PWM channel in the register FTM_SC[23:16]. It supports 8 channels. Bit
      16 is for channel 0, and bit 23 is for channel 7. As the IP version
      information can not be obtained via any of the FTM registers, a property
      of "has_enable_bits" is added via per-compatible data structure.
      Signed-off-by: default avatarShenwei Wang <shenwei.wang@nxp.com>
      Signed-off-by: default avatarThierry Reding <thierry.reding@gmail.com>
      db6c51ab
    • shenwei.wang@nxp.com's avatar
      pwm: fsl-ftm: Added a dedicated IP interface clock · 82a9c55a
      shenwei.wang@nxp.com authored
      The current driver assumes that the ftm_sys clock works as one of the
      clock sources for the IP block as well as the IP interface clock. This
      assumption does not apply any more on the latest i.MX8x SoC family. On
      i.MX8x SoCs, a dedicated IP interface clock is introduced and it must be
      enabled before accessing any FTM registers. Moreover, the clock can not
      be used as the source clock for the FTM IP block. This patch introduces
      the ipg_clk as the dedicated IP interface clock and by default it is the
      same as the ftm_sys clock if not specified.
      Signed-off-by: default avatarShenwei Wang <shenwei.wang@nxp.com>
      Signed-off-by: default avatarThierry Reding <thierry.reding@gmail.com>
      82a9c55a
    • Enric Balletbo i Serra's avatar
      pwm: cros-ec: Switch to SPDX identifier · 4964cb52
      Enric Balletbo i Serra authored
      Adopt the SPDX license identifier headers to ease license compliance
      management.
      Signed-off-by: default avatarEnric Balletbo i Serra <enric.balletbo@collabora.com>
      Signed-off-by: default avatarThierry Reding <thierry.reding@gmail.com>
      4964cb52
    • Fabio Estevam's avatar
      pwm: imx: Switch to SPDX identifier · a99290c5
      Fabio Estevam authored
      Adopt the SPDX license identifier headers to ease license compliance
      management.
      Signed-off-by: default avatarFabio Estevam <fabio.estevam@nxp.com>
      Signed-off-by: default avatarThierry Reding <thierry.reding@gmail.com>
      a99290c5
    • Vignesh R's avatar
      pwm: tiehrpwm: Fix disabling of output of PWMs · 38dabd91
      Vignesh R authored
      pwm-tiehrpwm driver disables PWM output by putting it in low output
      state via active AQCSFRC register in ehrpwm_pwm_disable(). But, the
      AQCSFRC shadow register is not updated. Therefore, when shadow AQCSFRC
      register is re-enabled in ehrpwm_pwm_enable() (say to enable second PWM
      output), previous settings are lost as shadow register value is loaded
      into active register. This results in things like PWMA getting enabled
      automatically, when PWMB is enabled and vice versa. Fix this by
      updating AQCSFRC shadow register as well during ehrpwm_pwm_disable().
      
      Fixes: 19891b20 ("pwm: pwm-tiehrpwm: PWM driver support for EHRPWM")
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatarVignesh R <vigneshr@ti.com>
      Signed-off-by: default avatarThierry Reding <thierry.reding@gmail.com>
      38dabd91
    • Vignesh R's avatar
      pwm: tiehrpwm: Don't use emulation mode bits to control PWM output · aa49d628
      Vignesh R authored
      As per AM335x TRM SPRUH73P "15.2.2.11 ePWM Behavior During Emulation",
      TBCTL[15:14] only have effect during emulation suspend events (IOW,
      to stop PWM when debugging using a debugger). These bits have no effect
      on PWM output during normal running of system. Hence, remove code
      accessing these bits as they have no role in enabling/disabling PWMs.
      
      Fixes: 19891b20 ("pwm: pwm-tiehrpwm: PWM driver support for EHRPWM")
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatarVignesh R <vigneshr@ti.com>
      Signed-off-by: default avatarThierry Reding <thierry.reding@gmail.com>
      aa49d628
    • Thomas Hebb's avatar
      pwm: berlin: Don't use broken prescaler values · 4de445cb
      Thomas Hebb authored
      The Berlin PWM driver is currently broken on at least BG2CD. The
      symptoms manifest as a very non-linear and erratic mapping from the duty
      cycle configured in software to the duty cycle produced by hardware.
      
      The cause of the bug is software's configuration of the prescaler, and
      in particular its usage of the six prescaler values between the minimum
      value of 1 and the maximum value of 4096. As it turns out, these six
      values do not actually slow down the PWM clock; rather, they emulate
      slowing down the clock by internally multiplying the value of TCNT.
      
      This would be a fine trick, if not for the fact that the internal,
      scaled TCNT value has no extra bits beyond the 16 already exposed to
      software in the register. What this means is that, for a prescaler of 4,
      the software must ensure that the top two bits of TCNT are not set,
      because hardware will chop them off; for a prescaler of 8, the top three
      bits must not be set, and so forth. Software does not currently ensure
      this, resulting in a TCNT several orders of magnitude lower than
      intended any time one of those six prescalers are selected.
      
      Because hardware chops off the high bits in its internal shift, the
      middle six prescalers don't actually allow *anything* that the first
      doesn't. In fact, they are strictly worse than the first, since the
      internal shift of TCNT prevents software from setting the low bits,
      decreasing the resolution, without providing any extra high bits.
      
      By skipping the useless prescalers entirely, this patch both fixes the
      driver's behavior and increases its performance (since, when the 4096
      prescaler is selected, it now does only a single shift rather than the
      seven successive divisions it did before).
      
      Tested on BG2CD.
      Signed-off-by: default avatarThomas Hebb <tommyhebb@gmail.com>
      Signed-off-by: default avatarThierry Reding <thierry.reding@gmail.com>
      4de445cb
  4. 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
  5. 15 Jun, 2018 20 commits