1. 11 Nov, 2012 12 commits
    • Linus Walleij's avatar
      pinctrl/coh901: use irqdomain, allocate irqdescs · a6c45b99
      Linus Walleij authored
      This switches the COH 901 pinctrl driver to allocate its GPIO
      IRQs dynamically, and start to use a linear irqdomain to map
      from the hardware IRQs.
      
      This way we can cut away the complex allocation of IRQ numbers
      from the <mach/irqs.h> file.
      Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
      a6c45b99
    • Linus Walleij's avatar
      ARM: U300: bump IRQs to offset 32 · d4a31ee8
      Linus Walleij authored
      The U300 IRQs were bumped once to offset to 1 (in order to avoid
      using IRQ 0 which is now NO_IRQ). This was OK as we were still
      passing the number of irqs in the .nr_irqs field of the machine,
      with descriptors allocated at boot time.
      
      However .nr_irqs should be 0, leading the system to reserve the
      first 16 IRQs. Then the VIC driver will complain that IRQs 1
      thru 15 are pre-allocated, so to avoid this and use free
      descriptors, move all IRQs up to offset 32.
      
      This will all be done away with as we migrate to device tree,
      so it is an interim solution.
      Acked-by: default avatarOlof Johansson <olof@lixom.net>
      Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
      d4a31ee8
    • Viresh Kumar's avatar
      pinctrl: SPEAr: Add plgpio driver · 604bb7da
      Viresh Kumar authored
      Most of SPEAr SoCs, which support pinctrl, can configure & use
      pads as gpio. This patch adds plgpio driver for configuring
      these pads as gpio.
      Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
      Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
      604bb7da
    • Shiraz Hashim's avatar
      gpiolib: provide provision to register pin ranges · f23f1516
      Shiraz Hashim authored
      pinctrl subsystem needs gpio chip base to prepare set of gpio
      pin ranges, which a given pinctrl driver can handle. This is
      important to handle pinctrl gpio request calls in order to
      program a given pin properly for gpio operation.
      
      As gpio base is allocated dynamically during gpiochip
      registration, presently there exists no clean way to pass this
      information to the pinctrl subsystem.
      
      After few discussions from [1], it was concluded that may be
      gpio controller reporting the pin range it supports, is a
      better way than pinctrl subsystem directly registering it.
      
      [1] http://comments.gmane.org/gmane.linux.ports.arm.kernel/184816
      
      Cc: Grant Likely <grant.likely@secretlab.ca>
      Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
      Signed-off-by: default avatarShiraz Hashim <shiraz.hashim@st.com>
      [Edited documentation a bit]
      Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
      f23f1516
    • Viresh Kumar's avatar
      Revert "pinctrl: remove pinctrl_remove_gpio_range" · 7e10ee68
      Viresh Kumar authored
      This reverts earlier commit which removed
      pinctrl_remove_gpio_range(), because at that time there
      weren't any more users of that routine. It was removed as the
      removal of ranges was done in unregister of pinctrl.
      
      But as we are now registering stuff from gpiolib, we may
      remove and insert a gpio module multiple times. So, we
      need this routine again.
      Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
      Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
      7e10ee68
    • Axel Lin's avatar
      pinctrl: exynos: Add terminating entry for of_device_id table · afa538c2
      Axel Lin authored
      The of_device_id table is supposed to be zero-terminated.
      Signed-off-by: default avatarAxel Lin <axel.lin@ingics.com>
      Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
      afa538c2
    • Barry Song's avatar
      pinctrl: sirf: enable the driver support new SiRFmarco SoC · d3e26f2f
      Barry Song authored
      The driver supports old up SiRFprimaII SoCs, this patch makes it support
      the new SiRFmarco as well.
      SiRFmarco, as a SMP SoC, adds new SIRFSOC_GPIO_PAD_EN_CLR registers, to
      disable GPIO pad, we should write 1 to the corresponding bit in the new
      CLEAR register instead of writing 0 to SIRFSOC_GPIO_PAD_EN.
      Signed-off-by: default avatarBarry Song <Baohua.Song@csr.com>
      Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
      d3e26f2f
    • Thomas Petazzoni's avatar
      pinctrl: mvebu: move to its own directory · 06763c74
      Thomas Petazzoni authored
      Like the spear platform, the mvebu platform has multiple files: one
      core file, and then one file per SoC family. More files will be added
      later, as support for mach-orion5x and mach-mv78xx0 SoCs is added to
      pinctrl-mvebu. For those reasons, having a separate subdirectory,
      drivers/pinctrl/mvebu/ makes sense, and it had already been suggested
      by Linus Wallej when the driver was originally submitted.
      Signed-off-by: default avatarThomas Petazzoni <thomas.petazzoni@free-electrons.com>
      Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
      06763c74
    • Thomas Petazzoni's avatar
      pinctrl: mvebu: remove useless include · de1d7625
      Thomas Petazzoni authored
      Including the core.h header for the pinctrl subsystem is not
      necessary, and it is actually causing problems when moving the
      pinctrl-mvebu drivers into a separate subdirectory.
      Signed-off-by: default avatarThomas Petazzoni <thomas.petazzoni@free-electrons.com>
      Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
      de1d7625
    • Thomas Petazzoni's avatar
      pinctrl: mvebu: allow plat-orion architectures to use pinctrl-mvebu · 55d2e40d
      Thomas Petazzoni authored
      The mach-kirkwood and mach-dove architectures have not yet been
      integrated into the mach-mvebu directory, which should ultimately
      contain the support for all Marvell SoCs from the Engineering Business
      Unit.
      
      However, before this can happen, we need to let mach-kirkwood and
      mach-dove use the pinctrl-mvebu driver, which supports the kirkwood
      and dove SoC families. In order to do that, we make this driver
      available as soon as PLAT_ORION is selected, instead of using
      ARCH_MVEBU as a condition. In the long term, PLAT_ORION should
      disappear and be fully replaced by ARCH_MVEBU, but the plan is to make
      the migration step by step, by first having the existing mach-*
      directories for Marvell SoCs converge on several infrastructures,
      including the pinctrl one.
      
      Also, like the spear pinctrl driver, we put all pinctrl-mvebu Kconfig
      options under a if, in order to avoid having certain options
      (PINCTRL_DOVE, PINCTRL_KIRKWOOD, etc.) selecting an option
      (PINCTLR_MVEBU) which itself has a dependency (on ARCH_MVEBU). In this
      a construct, the dependency is in fact ignored due to the selects.
      Signed-off-by: default avatarThomas Petazzoni <thomas.petazzoni@free-electrons.com>
      Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
      55d2e40d
    • Linus Walleij's avatar
      pinctrl: reserve pins when states are activated · 1a78958d
      Linus Walleij authored
      This switches the way that pins are reserved for multiplexing:
      
      We used to do this when the map was parsed, at the creation of
      the settings inside the pinctrl handle, in pinmux_map_to_setting().
      
      However this does not work for us, because we want to use the
      same set of pins with different devices at different times: the
      current code assumes that the pin groups in a pinmux state will
      only be used with one single device, albeit different groups can
      be active at different times. For example if a single I2C driver
      block is used to drive two different busses located on two
      pin groups A and B, then the pins for all possible states of a
      function are reserved when fetching the pinctrl handle: the
      I2C bus can choose either set A or set B by a mux state at
      runtime, but all pins in both group A and B (the superset) are
      effectively reserved for that I2C function and mapped to the
      device. Another device can never get in and use the pins in
      group A, even if the device/function is using group B at the
      moment.
      
      Instead: let use reserve the pins when the state is activated
      and drop them when the state is disabled, i.e. when we move to
      another state. This way different devices/functions can use the
      same pins at different times.
      
      We know that this is an odd way of doing things, but we really
      need to switch e.g. an SD-card slot to become a tracing output
      sink at runtime: we plug in a special "tracing card" then mux
      the pins that used to be an SD slot around to the tracing
      unit and push out tracing data there instead of SD-card
      traffic.
      
      As a side effect pinmux_free_setting() is unused but the stubs
      are kept for future additions of code.
      
      Cc: Patrice Chotard <patrice.chotard@st.com>
      Cc: Loic Pallardy <loic.pallardy@st.com>
      Acked-by: default avatarStephen Warren <swarren@nvidia.com>
      Tested-by: default avatarJean Nicolas Graux <jean-nicolas.graux@stericsson.com>
      Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
      1a78958d
    • Linus Torvalds's avatar
      Linux 3.7-rc5 · 77b67063
      Linus Torvalds authored
      77b67063
  2. 10 Nov, 2012 10 commits
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · b251f0f3
      Linus Torvalds authored
      Pull networking fixes from David Miller:
       "Bug fixes galore, mostly in drivers as is often the case:
      
        1) USB gadget and cdc_eem drivers need adjustments to their frame size
           lengths in order to handle VLANs correctly.  From Ian Coolidge.
      
        2) TIPC and several network drivers erroneously call tasklet_disable
           before tasklet_kill, fix from Xiaotian Feng.
      
        3) r8169 driver needs to apply the WOL suspend quirk to more chipsets,
           fix from Cyril Brulebois.
      
        4) Fix multicast filters on RTL_GIGA_MAC_VER_35 r8169 chips, from
           Nathan Walp.
      
        5) FDB netlink dumps should use RTM_NEWNEIGH as the message type, not
           zero.  From John Fastabend.
      
        6) Fix smsc95xx tx checksum offload on big-endian, from Steve
           Glendinning.
      
        7) __inet_diag_dump() needs to repsect and report the error value
           returned from inet_diag_lock_handler() rather than ignore it.
           Otherwise if an inet diag handler is not available for a particular
           protocol, we essentially report success instead of giving an error
           indication.  Fix from Cyrill Gorcunov.
      
        8) When the QFQ packet scheduler sees TSO/GSO packets it does not
           handle things properly, and in fact ends up corrupting it's
           datastructures as well as mis-schedule packets.  Fix from Paolo
           Valente.
      
        9) Fix oopser in skb_loop_sk(), from Eric Leblond.
      
        10) CXGB4 passes partially uninitialized datastructures in to FW
            commands, fix from Vipul Pandya.
      
        11) When we send unsolicited ipv6 neighbour advertisements, we should
            send them to the link-local allnodes multicast address, as per
            RFC4861.  Fix from Hannes Frederic Sowa.
      
        12) There is some kind of bug in the usbnet's kevent deferral
            mechanism, but more immediately when it triggers an uncontrolled
            stream of kernel messages spam the log.  Rate limit the error log
            message triggered when this problem occurs, as sending thousands
            of error messages into the kernel log doesn't help matters at all,
            and in fact makes further diagnosis more difficult.
      
            From Steve Glendinning.
      
        13) Fix gianfar restore from hibernation, from Wang Dongsheng.
      
        14) The netlink message attribute sizes are wrong in the ipv6 GRE
            driver, it was using the size of ipv4 addresses instead of ipv6
            ones :-) Fix from Nicolas Dichtel."
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
        gre6: fix rtnl dump messages
        gianfar: ethernet vanishes after restoring from hibernation
        usbnet: ratelimit kevent may have been dropped warnings
        ipv6: send unsolicited neighbour advertisements to all-nodes
        net: usb: cdc_eem: Fix rx skb allocation for 802.1Q VLANs
        usb: gadget: g_ether: fix frame size check for 802.1Q
        cxgb4: Fix initialization of SGE_CONTROL register
        isdn: Make CONFIG_ISDN depend on CONFIG_NETDEVICES
        cxgb4: Initialize data structures before using.
        af-packet: fix oops when socket is not present
        pkt_sched: enable QFQ to support TSO/GSO
        net: inet_diag -- Return error code if protocol handler is missed
        net: bnx2x: Fix typo in bnx2x driver
        smsc95xx: fix tx checksum offload for big endian
        rtnetlink: Use nlmsg type RTM_NEWNEIGH from dflt fdb dump
        ptp: update adjfreq callback description
        r8169: allow multicast packets on sub-8168f chipset.
        r8169: Fix WoL on RTL8168d/8111d.
        drivers/net: use tasklet_kill in device remove/close process
        tipc: do not use tasklet_disable before tasklet_kill
      b251f0f3
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc · 2b1768f3
      Linus Torvalds authored
      Pull sparc fixes from David Miller:
       "Several build/bug fixes for sparc, including:
      
        1) Configuring a mix of static vs.  modular sparc64 crypto modules
           didn't work, remove an ill-conceived attempt to only have to build
           the device match table for these drivers once to fix the problem.
      
           Reported by Meelis Roos.
      
        2) Make the montgomery multiple/square and mpmul instructions actually
           usable in 32-bit tasks.  Essentially this involves providing 32-bit
           userspace with a way to use a 64-bit stack when it needs to.
      
        3) Our sparc64 atomic backoffs don't yield cpu strands properly on
           Niagara chips.  Use pause instruction when available to achieve
           this, otherwise use a benign instruction we know blocks the strand
           for some time.
      
        4) Wire up kcmp
      
        5) Fix the build of various drivers by removing the unnecessary
           blocking of OF_GPIO when SPARC.
      
        6) Fix unintended regression wherein of_address_to_resource stopped
           being provided.  Fix from Andreas Larsson.
      
        7) Fix NULL dereference in leon_handle_ext_irq(), also from Andreas
           Larsson."
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
        sparc64: Fix build with mix of modular vs. non-modular crypto drivers.
        sparc: Support atomic64_dec_if_positive properly.
        of/address: sparc: Declare of_address_to_resource() as an extern function for sparc again
        sparc32, leon: Check for existent irq_map entry in leon_handle_ext_irq
        sparc: Add sparc support for platform_get_irq()
        sparc: Allow OF_GPIO on sparc.
        qlogicpti: Fix build warning.
        sparc: Wire up sys_kcmp.
        sparc64: Improvde documentation and readability of atomic backoff code.
        sparc64: Use pause instruction when available.
        sparc64: Fix cpu strand yielding.
        sparc64: Make montmul/montsqr/mpmul usable in 32-bit threads.
      2b1768f3
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6 · affd9a8d
      Linus Torvalds authored
      Pull cifs fixes from Jeff Layton.
      
      * 'for-linus' of git://git.samba.org/sfrench/cifs-2.6:
        cifs: Do not lookup hashed negative dentry in cifs_atomic_open
        cifs: fix potential buffer overrun in cifs.idmap handling code
      affd9a8d
    • Linus Torvalds's avatar
      Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64 · 487bda54
      Linus Torvalds authored
      Pull arm64 fixes from Catalin Marinas:
       - correct argument type (pgprot_t) when calling __ioremap()
       - PCI_IOBASE virtual address change
       - use architected event for CPU cycle counter
       - fix ELF core dumping
       - select CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION
       - missing completion for secondary CPU boot
       - booting on systems with all memory beyond 4GB
      
      * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
        arm64: mm: fix booting on systems with no memory below 4GB
        arm64: smp: add missing completion for secondary boot
        arm64: compat: select CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION
        arm64: elf: fix core dumping definitions for GP and FP registers
        arm64: perf: use architected event for CPU cycle counter
        arm64: Move PCI_IOBASE closer to MODULES_VADDR
        arm64: Use pgprot_t as the last argument when invoking __ioremap()
      487bda54
    • Linus Torvalds's avatar
      Merge tag 'stable/for-linus-3.7-rc5-tag' of... · 0020dd0b
      Linus Torvalds authored
      Merge tag 'stable/for-linus-3.7-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
      
      Pull Xen fixes from Konrad Rzeszutek Wilk:
       "There are three ARM compile fixes (we forgot to export certain
        functions and if the drivers are built as an module - we go belly-up).
      
        There is also an mismatch of irq_enter() / exit_idle() calls sequence
        which were fixed some time ago in other piece of codes, but failed to
        appear in the Xen code.
      
        Lastly a fix for to help in the field with troubleshooting in case we
        cannot get the appropriate parameter and also fallback code when
        working with very old hypervisors."
      
      Bug-fixes:
       - Fix compile issues on ARM.
       - Fix hypercall fallback code for old hypervisors.
       - Print out which HVM parameter failed if it fails.
       - Fix idle notifier call after irq_enter.
      
      * tag 'stable/for-linus-3.7-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
        xen/arm: Fix compile errors when drivers are compiled as modules (export more).
        xen/arm: Fix compile errors when drivers are compiled as modules.
        xen/generic: Disable fallback build on ARM.
        xen/events: fix RCU warning, or Call idle notifier after irq_enter()
        xen/hvm: If we fail to fetch an HVM parameter print out which flag it is.
        xen/hypercall: fix hypercall fallback code for very old hypervisors
      0020dd0b
    • David S. Miller's avatar
      sparc64: Fix build with mix of modular vs. non-modular crypto drivers. · 226f7cea
      David S. Miller authored
      We tried linking in a single built object to hold the device table,
      but only works if all of the sparc64 crypto modules get built the same
      way (modular vs. non-modular).
      
      Just include the device ID stub into each driver source file so that
      the table gets compiled into the correct result in all cases.
      Reported-by: default avatarMeelis Roos <mroos@linux.ee>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      226f7cea
    • David S. Miller's avatar
      sparc: Support atomic64_dec_if_positive properly. · 193d2aad
      David S. Miller authored
      Sparc32 already supported it, as a consequence of using the
      generic atomic64 implementation.  And the sparc64 implementation
      is rather trivial.
      
      This allows us to set ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE for all
      of sparc, and avoid the annoying warning from lib/atomic64_test.c
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      193d2aad
    • Andreas Larsson's avatar
      of/address: sparc: Declare of_address_to_resource() as an extern function for sparc again · 0bce04be
      Andreas Larsson authored
      This bug-fix makes sure that of_address_to_resource is defined extern for sparc
      so that the sparc-specific implementation of of_address_to_resource() is once
      again used when including include/linux/of_address.h in a sparc context. A
      number of drivers in mainline relies on this function working for sparc.
      
      The bug was introduced in a850a755, "of/address:
      add empty static inlines for !CONFIG_OF". Contrary to that commit title, the
      static inlines are added for !CONFIG_OF_ADDRESS, and CONFIG_OF_ADDRESS is never
      defined for sparc. This is good behavior for the other functions in
      include/linux/of_address.h, as the extern functions defined in
      drivers/of/address.c only gets linked when OF_ADDRESS is configured. However,
      for of_address_to_resource there exists a sparc-specific implementation in
      arch/sparc/arch/sparc/kernel/of_device_common.c
      
      Solution suggested by: Sam Ravnborg <sam@ravnborg.org>
      Signed-off-by: default avatarAndreas Larsson <andreas@gaisler.com>
      Acked-by: default avatarRob Herring <rob.herring@calxeda.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      0bce04be
    • Andreas Larsson's avatar
      sparc32, leon: Check for existent irq_map entry in leon_handle_ext_irq · 20424d85
      Andreas Larsson authored
      If an irq is being unlinked concurrently with leon_handle_ext_irq,
      irq_map[eirq] might be null in leon_handle_ext_irq. Make sure that
      this is not dereferenced.
      Signed-off-by: default avatarAndreas Larsson <andreas@gaisler.com>
      Acked-by: default avatarSam Ravnborg <sam@ravnborg.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      20424d85
    • Andreas Larsson's avatar
      sparc: Add sparc support for platform_get_irq() · 5cf8f7db
      Andreas Larsson authored
      This adds sparc support for platform_get_irq that in the normal case use
      platform_get_resource() to get an irq. This standard approach fails for sparc as
      there are no resources of type IORESOURCE_IRQ for irqs for sparc.
      
      Cross platform drivers can then use this standard platform function and work on
      sparc instead of having to have a special case for sparc.
      Signed-off-by: default avatarAndreas Larsson <andreas@gaisler.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      5cf8f7db
  3. 09 Nov, 2012 18 commits