1. 03 Aug, 2015 1 commit
    • Dirk Behme's avatar
      Input: zforce - make the interrupt GPIO optional · 62f46669
      Dirk Behme authored
      Add support for hardware which uses an I2C Serializer / Deserializer
      (SerDes) to communicate with the zFroce touch driver. In this case the
      SerDes will be configured as an interrupt controller and the zForce driver
      will have no access to poll the GPIO line.
      
      To support this, we add two dedicated new GPIOs in the device tree:
      reset-gpios and irq-gpios, with the irq-gpios being optional.
      
      To not break the existing device trees, the index based 'gpios' entries
      are still supported, but marked as deprecated.
      
      With this, if the interrupt GPIO is available, either via the old or new
      device tree style, the while loop will read and handle the packets as long
      as the GPIO indicates that the interrupt is asserted (existing, unchanged
      driver behavior).
      
      If the interrupt GPIO isn't available, i.e. not configured via the new
      device tree style, we are falling back to one read per ISR invocation
      (new behavior to support the SerDes).
      
      Note that the gpiod functions help to handle the optional GPIO:
      devm_gpiod_get_index_optional() will return NULL in case the interrupt
      GPIO isn't available. And gpiod_get_value_cansleep() does cover this, too,
      by returning 0 in this case.
      Signed-off-by: default avatarDirk Behme <dirk.behme@de.bosch.com>
      Reviewed-by: default avatarHeiko Stuebner <heiko.stuebner@bq.com>
      Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
      62f46669
  2. 30 Jul, 2015 5 commits
  3. 28 Jul, 2015 5 commits
  4. 24 Jul, 2015 9 commits
  5. 23 Jul, 2015 5 commits
  6. 20 Jul, 2015 3 commits
  7. 19 Jul, 2015 8 commits
  8. 18 Jul, 2015 4 commits
    • Linus Torvalds's avatar
      Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm · 9d37e667
      Linus Torvalds authored
      Pull ARM fixes from Russell King:
       "A small set of ARM fixes for -rc3, most of them not far off
        one-liners, with the exception of fixing the V7 cache invalidation for
        incoming SMP processors which was causing problems for SoCFPGA
        devices"
      
      * 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
        ARM: fix __virt_to_idmap build error on !MMU
        ARM: invalidate L1 before enabling coherency
        ARM: 8404/1: dma-mapping: fix off-by-one error in bitmap size check
        ARM: 8402/1: perf: Don't use of_node after putting it
        ARM: 8400/1: use virt_to_idmap to get phys_reset address
      9d37e667
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 0e1dbccd
      Linus Torvalds authored
      Pull x86 fixes from Ingo Molnar:
       "Two families of fixes:
      
         - Fix an FPU context related boot crash on newer x86 hardware with
           larger context sizes than what most people test.  To fix this
           without ugly kludges or extensive reverts we had to touch core task
           allocator, to allow x86 to determine the task size dynamically, at
           boot time.
      
           I've tested it on a number of x86 platforms, and I cross-built it
           to a handful of architectures:
      
                                              (warns)               (warns)
             testing     x86-64:  -git:  pass (    0),  -tip:  pass (    0)
             testing     x86-32:  -git:  pass (    0),  -tip:  pass (    0)
             testing        arm:  -git:  pass ( 1359),  -tip:  pass ( 1359)
             testing       cris:  -git:  pass ( 1031),  -tip:  pass ( 1031)
             testing       m32r:  -git:  pass ( 1135),  -tip:  pass ( 1135)
             testing       m68k:  -git:  pass ( 1471),  -tip:  pass ( 1471)
             testing       mips:  -git:  pass ( 1162),  -tip:  pass ( 1162)
             testing    mn10300:  -git:  pass ( 1058),  -tip:  pass ( 1058)
             testing     parisc:  -git:  pass ( 1846),  -tip:  pass ( 1846)
             testing      sparc:  -git:  pass ( 1185),  -tip:  pass ( 1185)
      
           ... so I hope the cross-arch impact 'none', as intended.
      
           (by Dave Hansen)
      
         - Fix various NMI handling related bugs unearthed by the big asm code
           rewrite and generally make the NMI code more robust and more
           maintainable while at it.  These changes are a bit late in the
           cycle, I hope they are still acceptable.
      
           (by Andy Lutomirski)"
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/fpu, sched: Introduce CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT and use it on x86
        x86/fpu, sched: Dynamically allocate 'struct fpu'
        x86/entry/64, x86/nmi/64: Add CONFIG_DEBUG_ENTRY NMI testing code
        x86/nmi/64: Make the "NMI executing" variable more consistent
        x86/nmi/64: Minor asm simplification
        x86/nmi/64: Use DF to avoid userspace RSP confusing nested NMI detection
        x86/nmi/64: Reorder nested NMI checks
        x86/nmi/64: Improve nested NMI comments
        x86/nmi/64: Switch stacks on userspace NMI entry
        x86/nmi/64: Remove asm code that saves CR2
        x86/nmi: Enable nested do_nmi() handling for 64-bit kernels
      0e1dbccd
    • Linus Torvalds's avatar
      Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · dae57fb6
      Linus Torvalds authored
      Pull timer fix from Ingo Molnar:
       "Fix for a misplaced export that can cause build failures in certain
        (rare) Kconfig situations"
      
      * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        tick: Move the export of tick_broadcast_oneshot_control to the proper place
      dae57fb6
    • Linus Torvalds's avatar
      Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · d65b78f5
      Linus Torvalds authored
      Pull scheduler fix from Ingo Molnar:
       "A oneliner rq throttling fix"
      
      * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        sched/fair: Test list head instead of list entry in throttle_cfs_rq()
      d65b78f5