1. 11 Mar, 2015 3 commits
    • Simon Farnsworth's avatar
      drm/dp: Use large transactions for I2C over AUX · 1d002fa7
      Simon Farnsworth authored
      Older DisplayPort to DVI-D Dual Link adapters designed by Bizlink have bugs
      in their I2C over AUX implementation (fixed in newer revisions). They work
      fine with Windows, but fail with Linux.
      
      It turns out that they cannot keep an I2C transaction open unless the
      previous read was 16 bytes; shorter reads can only be followed by a zero
      byte transfer ending the I2C transaction.
      
      Copy Windows's behaviour, and read 16 bytes at a time. If we get a short
      reply, assume that there's a hardware bottleneck, and shrink our read size
      to match. For this purpose, use the algorithm in the DisplayPort 1.2 spec,
      in the hopes that it'll be closest to what Windows does.
      
      Also provide an unsafe module parameter for testing smaller transfer sizes,
      in case there are sinks out there that cannot work with Windows.
      
      Note also that despite the previous comment in drm_dp_i2c_xfer, this speeds
      up native DP EDID reads; Ville Syrjälä <ville.syrjala@linux.intel.com> found
      the following changes in his testing:
      
      Device under test:     old  -> with this patch
      DP->DVI (OUI 001cf8):  40ms -> 35ms
      DP->VGA (OUI 0022b9):  45ms -> 38ms
      Zotac DP->2xHDMI:      25ms ->  4ms
      Asus PB278 monitor:    22ms ->  3ms
      
      A back of the envelope calculation shows that peak theoretical transfer rate
      for 1 byte reads is around 60 kbit/s; with 16 byte reads, this increases to
      around 500 kbit/s, which explains the increase in speed.
      
      Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=55228
      Tested-by: Aidan Marks <aidanamarks@gmail.com> (v3)
      Signed-off-by: default avatarSimon Farnsworth <simon.farnsworth@onelan.co.uk>
      Reviewed-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
      Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
      1d002fa7
    • Daniel Vetter's avatar
      drm/plane-helper: Fixup mismerge · 967667fd
      Daniel Vetter authored
      I somehow manage to screw up applying Laurent's patch in eca93e28c256:
      "drm: Check in setcrtc if the primary plane supports the fb pixel
      format". It was a conflict with
      
      commit 3461b30b
      Author: Daniel Vetter <daniel.vetter@ffwll.ch>
      Date:   Thu Mar 5 10:32:44 2015 +0100
      
          drm/plane-helper: unexport drm_primary_helper_create_plane
      
      and I just didn't check that the solution from wiggle made sense.
      
      Cc: Dan Carpenter <dan.carpenter@oracle.com>
      Cc: laurent.pinchart@ideasonboard.com
      Reported-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
      Acked-by: laurent.pinchart@ideasonboard.com
      Signed-off-by: default avatarDaniel Vetter <daniel.vetter@intel.com>
      967667fd
    • Ville Syrjälä's avatar
      drm/atomic: Constify a bunch of functions pointer structs · b5ceff20
      Ville Syrjälä authored
      Make the helper function pointer structs const to make it clear they
      should not be modified.
      Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
      Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
      b5ceff20
  2. 10 Mar, 2015 14 commits
  3. 09 Mar, 2015 3 commits
    • Ville Syrjälä's avatar
      drm/i915: Fix struct_mutex deadlock due to merge fumble · 3a656b54
      Ville Syrjälä authored
      commit a8c6ecb3
      Merge: 8dd0eb35 9eccca08
      Author: Dave Airlie <airlied@redhat.com>
      Date:   Mon Mar 9 19:58:30 2015 +1000
      
          Merge tag 'v4.0-rc3' into drm-next
      
      managed to pick the wrong code to resolve the conflict and left us with
      a mutex_lock(struct_mutex) without the mutex_unlock(struct_mutex) leading
      to a deadlock. Fix the problem by recovering the correct code which doesn't
      need the lock.
      
      Cc: Dave Airlie <airlied@redhat.com>
      Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      3a656b54
    • Dave Airlie's avatar
      Merge tag 'v4.0-rc3' into drm-next · a8c6ecb3
      Dave Airlie authored
      Linux 4.0-rc3 backmerge to fix two i915 conflicts, and get
      some mainline bug fixes needed for my testing box
      
      Conflicts:
      	drivers/gpu/drm/i915/i915_drv.h
      	drivers/gpu/drm/i915/intel_display.c
      a8c6ecb3
    • Dave Airlie's avatar
      Merge tag 'drm-intel-next-2015-02-27' of git://anongit.freedesktop.org/drm-intel into drm-next · 8dd0eb35
      Dave Airlie authored
      - Y tiling support for scanout from Tvrtko&Damien
      - Remove more UMS support
      - some small prep patches for OLR removal from John Harrison
      - first few patches for dynamic pagetable allocation from Ben Widawsky, rebased
        by tons of other people
      - DRRS support patches (Sonika&Vandana)
      - fbc patches from Paulo
      - make sure our vblank callbacks aren't called when the pipes are off
      - various patches all over
      
      * tag 'drm-intel-next-2015-02-27' of git://anongit.freedesktop.org/drm-intel: (61 commits)
        drm/i915: Update DRIVER_DATE to 20150227
        drm/i915: Clarify obj->map_and_fenceable
        drm/i915/skl: Allow Y (and Yf) frame buffer creation
        drm/i915/skl: Update watermarks for Y tiling
        drm/i915/skl: Updated watermark programming
        drm/i915/skl: Adjust get_plane_config() to support Yb/Yf tiling
        drm/i915/skl: Teach pin_and_fence_fb_obj() about Y tiling constraints
        drm/i915/skl: Adjust intel_fb_align_height() for Yb/Yf tiling
        drm/i915/skl: Allow scanning out Y and Yf fbs
        drm/i915/skl: Add new displayable tiling formats
        drm/i915: Remove DRIVER_MODESET checks from modeset code
        drm/i915: Remove regfile code&data for UMS suspend/resume
        drm/i915: Remove DRIVER_MODESET checks from gem code
        drm/i915: Remove DRIVER_MODESET checks in the gpu reset code
        drm/i915: Remove DRIVER_MODESET checks from suspend/resume code
        drm/i915: Remove DRIVER_MODESET checks in load/unload/close code
        drm/i915: fix a printk format
        drm/i915: Add media rc6 residency file to sysfs
        drm/i915: Add missing description to parameter in alloc_pt_range
        drm/i915: Removed the read of RP_STATE_CAP from sysfs/debugfs functions
        ...
      8dd0eb35
  4. 08 Mar, 2015 7 commits
    • Linus Torvalds's avatar
      Linux 4.0-rc3 · 9eccca08
      Linus Torvalds authored
      9eccca08
    • Al Viro's avatar
      sunrpc: fix braino in ->poll() · 1711fd9a
      Al Viro authored
      POLL_OUT isn't what callers of ->poll() are expecting to see; it's
      actually __SI_POLL | 2 and it's a siginfo code, not a poll bitmap
      bit...
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      Cc: stable@vger.kernel.org
      Cc: Bruce Fields <bfields@fieldses.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      1711fd9a
    • Linus Torvalds's avatar
      Merge tag 'usb-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb · 1163d504
      Linus Torvalds authored
      Pull USB fixes from Greg KH:
       "Here's a round of USB fixes for 4.0-rc3.
      
        Nothing major, the usual gadget, xhci and usb-serial fixes and a few
        new device ids as well.
      
        All have been in linux-next successfully"
      
      * tag 'usb-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (36 commits)
        xhci: Workaround for PME stuck issues in Intel xhci
        xhci: fix reporting of 0-sized URBs in control endpoint
        usb: ftdi_sio: Add jtag quirk support for Cyber Cortex AV boards
        USB: ch341: set tty baud speed according to tty struct
        USB: serial: cp210x: Adding Seletek device id's
        USB: pl2303: disable break on shutdown
        USB: mxuport: fix null deref when used as a console
        USB: serial: clean up bus probe error handling
        USB: serial: fix port attribute-creation race
        USB: serial: fix tty-device error handling at probe
        USB: serial: fix potential use-after-free after failed probe
        USB: console: add dummy __module_get
        USB: ftdi_sio: add PIDs for Actisense USB devices
        Revert "USB: serial: make bulk_out_size a lower limit"
        cdc-acm: Add support for Denso cradle CU-321
        usb-storage: support for more than 8 LUNs
        uas: Add US_FL_NO_REPORT_OPCODES for JMicron JMS539
        USB: usbfs: don't leak kernel data in siginfo
        xhci: Clear the host side toggle manually when endpoint is 'soft reset'
        xhci: Allocate correct amount of scratchpad buffers
        ...
      1163d504
    • Linus Torvalds's avatar
      Merge tag 'tty-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty · bbbce516
      Linus Torvalds authored
      Pull tty/serial fixes from Greg KH:
       "Here are some tty and serial driver fixes for 4.0-rc3.
      
        Along with the atime fix that you know about, here are some other
        serial driver bugfixes as well.  Most notable is a wait_until_sent
        bugfix that was traced back to being around since before 2.6.12 that
        Johan has fixed up.
      
        All have been in linux-next successfully"
      
      * tag 'tty-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
        TTY: fix tty_wait_until_sent maximum timeout
        TTY: fix tty_wait_until_sent on 64-bit machines
        USB: serial: fix infinite wait_until_sent timeout
        TTY: bfin_jtag_comm: remove incorrect wait_until_sent operation
        net: irda: fix wait_until_sent poll timeout
        serial: uapi: Declare all userspace-visible io types
        serial: core: Fix iotype userspace breakage
        serial: sprd: Fix missing spin_unlock in sprd_handle_irq()
        console: Fix console name size mismatch
        tty: fix up atime/mtime mess, take four
        serial: 8250_dw: Fix get_mctrl behaviour
        serial:8250:8250_pci: delete unneeded quirk entries
        serial:8250:8250_pci: fix redundant entry report for WCH_CH352_2S
        Change email address for 8250_pci
        serial: 8250: Revert "tty: serial: 8250_core: read only RX if there is something in the FIFO"
        Revert "tty/serial: of_serial: add DT alias ID handling"
      bbbce516
    • Linus Torvalds's avatar
      Merge tag 'staging-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging · 47df986b
      Linus Torvalds authored
      Pull staging driver fixes from Greg KH:
       "Here are some IIO and staging driver fixes for 4.0-rc3.
      
        Details are in the shortlog, nothing major, mostly IIO fixes for
        reported issues.
      
        All have been in linux-next successfully"
      
      * tag 'staging-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (23 commits)
        staging: comedi: adv_pci1710: fix AI INSN_READ for non-zero channel
        staging: comedi: vmk80xx: remove "firmware version" kernel messages
        staging: comedi: comedi_isadma: fix "stalled" detect in comedi_isadma_disable_on_sample()
        iio: ak8975: fix AK09911 dependencies
        iio: common: ssp_sensors: Protect PM-only functions to kill warning
        IIO: si7020: Allocate correct amount of memory in devm_iio_device_alloc
        Revert "iio:humidity:si7020: fix pointer to i2c client"
        iio: light: gp2ap020a00f: Select REGMAP_I2C
        iio: light: jsa1212: Select REGMAP_I2C
        iio: ad5686: fix optional reference voltage declaration
        iio:adc:mcp3422 Fix incorrect scales table
        iio: mxs-lradc: fix iio channel map regression
        iio: imu: adis16400: Fix sign extension
        staging: iio: ad2s1200: Fix sign extension
        iio: mxs-lradc: only update the buffer when its conversions have finished
        iio: mxs-lradc: make ADC reads not unschedule touchscreen conversions
        iio: mxs-lradc: make ADC reads not disable touchscreen interrupts
        iio: mxs-lradc: separate touchscreen and buffer virtual channels
        iio: imu: inv_mpu6050: Prevent dereferencing NULL
        iio: iadc: wait_for_completion_timeout time in jiffies
        ...
      47df986b
    • Linus Torvalds's avatar
      Merge tag 'char-misc-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc · 29191c7f
      Linus Torvalds authored
      Pull char/misc driver fixes from Greg KH:
       "Here are two char/misc fixes for 4.0-rc3.
      
        One is a reported binder driver fix needed due to a change in the mm
        core that happened in 4.0-rc1.  Another is a mei driver fix that
        resolves a reported issue in that driver.
      
        Both have been in linux-next for a while"
      
      * tag 'char-misc-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
        mei: make device disabled on stop unconditionally
        android: binder: fix binder mmap failures
      29191c7f
    • Linus Torvalds's avatar
      Merge tag 'cc-4.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc · b0bc6572
      Linus Torvalds authored
      Pull "code of conflict" from Greg KH:
       "This file tries to set the rational basis for our code reviews, gives
        some advice on how to conduct them, and provides an excalation channel
        for any kernel developers if they so desire it"
      
      [ Let's see how this works ]
      
      * tag 'cc-4.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
        Code of Conflict
      b0bc6572
  5. 07 Mar, 2015 13 commits