1. 25 Apr, 2013 1 commit
  2. 09 Apr, 2013 2 commits
    • Rob Herring's avatar
      Merge tag 'tegra-for-3.10-dtc-cpp-chroot-std-headers' of... · a2f682ae
      Rob Herring authored
      Merge tag 'tegra-for-3.10-dtc-cpp-chroot-std-headers' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into for-next
      
      Pull DT C pre-processor changes from Stephen Warren:
      
      dt: run C pre-processor on *.dts, create some standard headers
      
      This branch enhances the support for running dtc on device tree files.
      
      A dedicated directory is created for header files that provide constants
      for device-tree bindings.
      
      The kbuild dependency script processor is enhanced to support processing
      the dependency outputs from multiple separate commands at once.
      
      The kbuild dtc rule is modified so that the C pre-processor is always
      applied when compiling any device tree.
      
      Some standard headers are created which define common constants for GPIO,
      IRQ, and ARM GIC device tree bindings.
      a2f682ae
    • Sergei Shtylyov's avatar
      <linux/of_platform.h>: fix compilation warnings with DT disabled · d450f445
      Sergei Shtylyov authored
      Fix the following compilation warnings (in Simon Horman's renesas.git repo):
      
      In file included from arch/arm/mach-shmobile/setup-r8a7779.c:24:0:
      include/linux/of_platform.h:107:13: warning: ‘struct of_device_id’ declared
      inside parameter list [enabled by default]
      include/linux/of_platform.h:107:13: warning: its scope is only this definition
      or declaration, which is probably not what you want [enabled by default]
      include/linux/of_platform.h:107:13: warning: ‘struct device_node’ declared
      inside parameter list [enabled by default]
      
      <linux/of_platform.h> only #include's headers with definitions of the above
      mentioned structures if CONFIG_OF_DEVICE=y but uses them even if not. One
      solution is to move some #include's out of #ifdef CONFIG_OF_DEVICE and use
      incomplete declarations for the rest of the structures where the #ifdef move
      doesn't help...
      Reported-by: default avatarVladimir Barinov <vladimir.barinov@cogentembedded.com>
      Signed-off-by: default avatarSergei Shtylyov <sergei.shtylyov@cogentembedded.com>
      Signed-off-by: default avatarRob Herring <rob.herring@calxeda.com>
      d450f445
  3. 05 Apr, 2013 7 commits
    • Stephen Warren's avatar
      ARM: dt: create a DT header for the GIC · 4be505d4
      Stephen Warren authored
      The ARM GIC binding defines a few custom cells and flags for its IRQ
      specifier. Provide names for those.
      Signed-off-by: default avatarStephen Warren <swarren@nvidia.com>
      Acked-by: default avatarRob Herring <rob.herring@calxeda.com>
      4be505d4
    • Stephen Warren's avatar
      ARM: dt: add header to define IRQ flags · 840ef8b7
      Stephen Warren authored
      Many IRQ device tree bindings use the same flags. Create a header to
      define those.
      Signed-off-by: default avatarStephen Warren <swarren@nvidia.com>
      Acked-by: default avatarRob Herring <rob.herring@calxeda.com>
      840ef8b7
    • Stephen Warren's avatar
      ARM: dt: add header to define GPIO flags · 71fab21f
      Stephen Warren authored
      Many GPIO device tree bindings use the same flags. Create a header to
      define those.
      Signed-off-by: default avatarStephen Warren <swarren@nvidia.com>
      Acked-by: default avatarRob Herring <rob.herring@calxeda.com>
      71fab21f
    • Stephen Warren's avatar
      kbuild: always run gcc -E on *.dts, remove cmd_dtc_cpp · b40b25ff
      Stephen Warren authored
      Replace cmd_dtc with cmd_dtc_cpp, and delete the latter.
      
      Previously, a special file extension (.dtsp) was required to trigger
      the C pre-processor to run on device tree files. This was ugly. Now that
      previous changes have enhanced cmd_dtc_cpp to collect dependency
      information from both gcc -E and dtc, we can transparently run the pre-
      processor on all device tree files, irrespective of whether they
      use /include/ or #include syntax to include *.dtsi.
      Signed-off-by: default avatarStephen Warren <swarren@nvidia.com>
      Acked-by: default avatarRob Herring <rob.herring@calxeda.com>
      b40b25ff
    • Stephen Warren's avatar
      kbuild: cmd_dtc_cpp: extract deps from both gcc -E and dtc · 85f02be8
      Stephen Warren authored
      Prior to this change, when compiling *.dts to *.dtb, the dependency
      output from dtc would be used, and when compiling *.dtsp to *.dtb, the
      dependency output from gcc -E alone would be used, despite dtc also
      being invoked (on a temporary file that was guaranteed to have no
      dependencies).
      
      With this change, when compiling *.dtsp to *.dtb, the dependency files
      from both gcc -E and dtc are used. This will allow cmd_dtc_cpp to
      replace cmd_dtc in a future change. In turn, that will allow the C pre-
      processor to be run transparently on *.dts, without the need to a
      separate rule or file extension to trigger it.
      Signed-off-by: default avatarStephen Warren <swarren@nvidia.com>
      Acked-by: default avatarRob Herring <rob.herring@calxeda.com>
      85f02be8
    • Stephen Warren's avatar
      kbuild: fixdep: support concatenated dep files · 2ab8a996
      Stephen Warren authored
      The current use-case for fixdep is: a source file is run through a single
      processing step, which creates a single dependency file as a side-effect,
      which fixdep transforms into the file used by the kernel build process.
      
      In order to transparently run the C pre-processor on device-tree files,
      we wish to run both gcc -E and dtc on a source file in a single rule.
      This generates two dependency files, which must be transformed together
      into the file used by the kernel build process. This change modifies
      fixdep so it can process the concatenation of multiple separate input
      dependency files, and produce a correct unified output.
      
      The code changes have the slight benefit of transforming the loop in
      parse_dep_file() into more of a lexer/tokenizer, with the loop body being
      more of a parser. Previously, some of this logic was mixed together
      before the loop. I also added some comments, which I hope are useful.
      
      Benchmarking shows that on a cross-compiled ARM tegra_defconfig build,
      there is less than 0.5 seconds speed decrease with this change, on top
      of a build time of ~2m24s. This is probably within the noise.
      Signed-off-by: default avatarStephen Warren <swarren@nvidia.com>
      Acked-by: default avatarRob Herring <rob.herring@calxeda.com>
      2ab8a996
    • Stephen Warren's avatar
      kbuild: create an "include chroot" for DT bindings · c58299aa
      Stephen Warren authored
      The recent dtc+cpp support allows header files and C pre-processor
      defines/macros to be used when compiling device tree files. These
      headers will typically define various constants that are part of the
      device tree bindings.
      
      The original patch which set up the dtc+cpp include path only considered
      using those headers from device tree files. However, most are also
      useful for kernel code which needs to interpret the device tree.
      
      In both the DT files and the kernel, I'd like to include the DT-related
      headers in the same way, for example, <dt-bindings/gpio/tegra-gpio.h>.
      That will simplify any text which discusses the DT header locations.
      
      Creating a <dt-bindings/> for kernel source to use is as simple as
      placing files into include/dt-bindings/.
      
      However, when compiling DT files, the include path should be restricted
      so that only the dt-bindings path is available; arbitrary kernel headers
      shouldn't be exposed. For this reason, create a specific include
      directory for use by dtc+cpp, and symlink dt-bindings from there to the
      actual location of include/dt-bindings/. For want of a better location,
      place this "include chroot" into the existing dts/ directory.
      
      arch/*/boot/dts/include/dt-bindings -> ../../../../../include/dt-bindings
      
      Some headers used by device tree files may not be useful to the kernel;
      they may be used simply to aid in constructing the DT file (e.g. macros
      to create a node), but not define any information that the kernel needs
      to share. These may be placed directly into arch/*/boot/dts/ along with
      the DT files themselves.
      Acked-by: default avatarMichal Marek <mmarek@suse.cz>
      Acked-by: default avatarShawn Guo <shawn.guo@linaro.org>
      Acked-by: default avatarRob Herring <rob.herring@calxeda.com>
      Signed-off-by: default avatarStephen Warren <swarren@nvidia.com>
      c58299aa
  4. 10 Mar, 2013 2 commits
    • Linus Torvalds's avatar
      Linux 3.9-rc2 · f6161aa1
      Linus Torvalds authored
      f6161aa1
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace · 72932611
      Linus Torvalds authored
      Pull namespace bugfixes from Eric Biederman:
       "This is three simple fixes against 3.9-rc1.  I have tested each of
        these fixes and verified they work correctly.
      
        The userns oops in key_change_session_keyring and the BUG_ON triggered
        by proc_ns_follow_link were found by Dave Jones.
      
        I am including the enhancement for mount to only trigger requests of
        filesystem modules here instead of delaying this for the 3.10 merge
        window because it is both trivial and the kind of change that tends to
        bit-rot if left untouched for two months."
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
        proc: Use nd_jump_link in proc_ns_follow_link
        fs: Limit sys_mount to only request filesystem modules (Part 2).
        fs: Limit sys_mount to only request filesystem modules.
        userns: Stop oopsing in key_change_session_keyring
      72932611
  5. 09 Mar, 2013 5 commits
    • Linus Torvalds's avatar
      Atmel MXT touchscreen: increase reset timeouts · 8343bce1
      Linus Torvalds authored
      There is a more complete atmel patch-series out by Nick Dyer that fixes
      this and other things, but in the meantime this is the minimal thing to
      get the touchscreen going on (at least my) Pixel Chromebook.
      
      Not that I want my dirty fingers near that beautiful screen, but it
      seems that a non-initialized touchscreen will also end up being a
      constant wakeup source, so you have to disable it to go to sleep.  And
      it's easier to just fix the initialization sequence.
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      8343bce1
    • Eric W. Biederman's avatar
      proc: Use nd_jump_link in proc_ns_follow_link · db04dc67
      Eric W. Biederman authored
      Update proc_ns_follow_link to use nd_jump_link instead of just
      manually updating nd.path.dentry.
      
      This fixes the BUG_ON(nd->inode != parent->d_inode) reported by Dave
      Jones and reproduced trivially with mkdir /proc/self/ns/uts/a.
      
      Sigh it looks like the VFS change to require use of nd_jump_link
      happend while proc_ns_follow_link was baking and since the common case
      of proc_ns_follow_link continued to work without problems the need for
      making this change was overlooked.
      
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatar"Eric W. Biederman" <ebiederm@xmission.com>
      db04dc67
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs · 0aefda3e
      Linus Torvalds authored
      Pull btrfs fixes from Chris Mason:
       "These are scattered fixes and one performance improvement.  The
        biggest functional change is in how we throttle metadata changes.  The
        new code bumps our average file creation rate up by ~13% in fs_mark,
        and lowers CPU usage.
      
        Stefan bisected out a regression in our allocation code that made
        balance loop on extents larger than 256MB."
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
        Btrfs: improve the delayed inode throttling
        Btrfs: fix a mismerge in btrfs_balance()
        Btrfs: enforce min_bytes parameter during extent allocation
        Btrfs: allow running defrag in parallel to administrative tasks
        Btrfs: avoid deadlock on transaction waiting list
        Btrfs: do not BUG_ON on aborted situation
        Btrfs: do not BUG_ON in prepare_to_reloc
        Btrfs: free all recorded tree blocks on error
        Btrfs: build up error handling for merge_reloc_roots
        Btrfs: check for NULL pointer in updating reloc roots
        Btrfs: fix unclosed transaction handler when the async transaction commitment fails
        Btrfs: fix wrong handle at error path of create_snapshot() when the commit fails
        Btrfs: use set_nlink if our i_nlink is 0
      0aefda3e
    • Benson Leung's avatar
      Platform: x86: chromeos_laptop : Add basic platform data for atmel devices · 2ef39204
      Benson Leung authored
      Add basic platform data to get the current upstream driver working
      with the 224s touchpad and 1664s touchscreen.
      We will be using NULL config so we will use the settings from the
      devices' NVRAMs.
      Signed-off-by: default avatarBenson Leung <bleung@chromium.org>
      Tested-by: default avatarOlof Johansson <olof@lixom.net>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      2ef39204
    • Daniel Kurtz's avatar
      Input: atmel_mxt_ts - Support for touchpad variant · 22dfab7f
      Daniel Kurtz authored
      This same driver can be used by atmel based touchscreens and touchpads
      (buttonpads). Platform data may specify a device is a touchpad
      using the is_tp flag.
      
      This will cause the driver to perform some touchpad specific
      initializations, such as:
        * register input device name "Atmel maXTouch Touchpad" instead of
        Touchscreen.
        * register BTN_LEFT & BTN_TOOL_* event types.
        * register axis resolution (as a fixed constant, for now)
        * register BUTTONPAD property
        * process GPIO buttons using reportid T19
      
      Input event GPIO mapping is done by the platform data key_map array.
      
      key_map[x] should contain the KEY or BTN code to send when processing
      GPIOx from T19. To specify a GPIO as not an input source, populate
      with KEY_RESERVED, or 0.
      Signed-off-by: default avatarDaniel Kurtz <djkurtz@chromium.org>
      Signed-off-by: default avatarBenson Leung <bleung@chromium.org>
      Signed-off-by: default avatarNick Dyer <nick.dyer@itdev.co.uk>
      Tested-by: default avatarOlof Johansson <olof@lixom.net>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      22dfab7f
  6. 08 Mar, 2013 19 commits
  7. 07 Mar, 2013 4 commits
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 47b3bc90
      Linus Torvalds authored
      Pull x86 fixes from Peter Anvin:
       "Several boot fixes (MacBook, legacy EFI bootloaders), another
        please-don't-brick fix, and some minor stuff."
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86: Do not try to sync identity map for non-mapped pages
        x86, doc: Be explicit about what the x86 struct boot_params requires
        x86: Don't clear efi_info even if the sentinel hits
        x86, mm: Make sure to find a 2M free block for the first mapped area
        x86: Fix 32-bit *_cpu_data initializers
        efivarfs: return accurate error code in efivarfs_fill_super()
        efivars: efivarfs_valid_name() should handle pstore syntax
        efi: be more paranoid about available space when creating variables
        iommu, x86: Add DMA remap fault reason
        x86, smpboot: Remove unused variable
      47b3bc90
    • Linus Torvalds's avatar
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · af2841cd
      Linus Torvalds authored
      Pull drm fixes from Dave Airlie:
       "Misc radeon, nouveau, mgag200 and intel fixes.
      
        The intel fixes should contain the fix for the touchpad on the
        Chromebook - hey I'm an input maintainer now!"
      
      Hate to pee on your parade, Dave, but I don't think being an input
      maintainer is necessarily something to strive for..
      
      * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (25 commits)
        drm/tegra: drop "select DRM_HDMI"
        drm: Documentation typo fixes
        drm/mgag200: Bug fix: Renesas board now selects native resolution.
        drm/mgag200: Reject modes that are too big for VRAM
        drm/mgag200: 'fbdev_list' in 'struct mga_fbdev' is not used
        drm/radeon: don't check mipmap alignment if MIP_ADDRESS is FMASK
        drm/radeon: skip MC reset as it's probably not hung
        drm/radeon: add primary dac adj quirk for R200 board
        drm/radeon: don't set hpd, afmt interrupts when interrupts are disabled
        drm/i915: Turn off hsync and vsync on ADPA when disabling crt
        drm/i915: Fix incorrect definition of ADPA HSYNC and VSYNC bits
        drm/i915: also disable south interrupts when handling them
        drm/i915: enable irqs earlier when resuming
        drm/i915: Increase the RC6p threshold.
        DRM/i915: On G45 enable cursor plane briefly after enabling the display plane.
        drm/nv50-: prevent some races between modesetting and page flipping
        drm/nouveau/i2c: drop parent refcount when creating ports
        drm/nv84: fix regression in page flipping
        drm/nouveau: Fix typo in init_idx_addr_latched().
        drm/nouveau: Disable AGP on PowerPC again.
        ...
      af2841cd
    • Linus Torvalds's avatar
      Merge tag 'pm+acpi-3.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · c89b148f
      Linus Torvalds authored
      Pull ACPI and power management fixes from Rafael J Wysocki:
      
       - Two fixes for the new intel_pstate driver from Dirk Brandewie.
      
       - Fix for incorrect usage of the .find_bridge() callback from struct
         acpi_bus_type in the USB core and subsequent removal of that callback
         from Rafael J Wysocki.
      
       - ACPI processor driver cleanups from Chen Gang and Syam Sidhardhan.
      
       - ACPI initialization and error messages fix from Joe Perches.
      
       - Operating Performance Points documentation improvement from Nishanth
         Menon.
      
       - Fixes for memory leaks and potential concurrency issues and sysfs
        attributes leaks during device removal in the core device PM QoS code
        from Rafael J Wysocki.
      
       - Calxeda Highbank cpufreq driver simplification from Emilio López.
      
       - cpufreq comment cleanup from Namhyung Kim.
      
       - Fix for a section mismatch in Calxeda Highbank interprocessor
         communication code from Mark Langsdorf (this is not a PM fix strictly
         speaking, but the code in question went in through the PM tree).
      
      * tag 'pm+acpi-3.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        cpufreq / intel_pstate: Do not load on VM that does not report max P state.
        cpufreq / intel_pstate: Fix intel_pstate_init() error path
        ACPI / glue: Drop .find_bridge() callback from struct acpi_bus_type
        ACPI / glue: Add .match() callback to struct acpi_bus_type
        ACPI / porocessor: Beautify code, pr->id is u32 which is never < 0
        ACPI / processor: Remove redundant NULL check before kfree
        ACPI / Sleep: Avoid interleaved message on errors
        PM / QoS: Remove device PM QoS sysfs attributes at the right place
        PM / QoS: Fix concurrency issues and memory leaks in device PM QoS
        cpufreq: highbank: do not initialize array with a loop
        PM / OPP: improve introductory documentation
        cpufreq: Fix a typo in comment
        mailbox, pl320-ipc: remove __init from probe function
      c89b148f
    • Paul Bolle's avatar
      drm/tegra: drop "select DRM_HDMI" · 36c1813b
      Paul Bolle authored
      Commit ac24c220 ("drm/tegra: Use generic
      HDMI infoframe helpers") added "select DRM_HDMI" to the DRM_TEGRA
      Kconfig entry. But there is no Kconfig symbol named DRM_HDMI. The select
      statement for that symbol is a nop. Drop it.
      
      What was needed to use HDMI functionality was to select HDMI (which this
      entry already did through depending on DRM) and to include linux/hdmi.h
      (which this commit also did).
      Signed-off-by: default avatarPaul Bolle <pebolle@tiscali.nl>
      Acked-by: default avatarThierry Reding <thierry.reding@avionic-design.de>
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      36c1813b