Eric Lee / smarc-fsl-linux-kernel

22 Nov, 2011

1 commit

04 Oct, 2011

1 commit

  • 4d7408014   video: da8xx-fb: Increased resolution configuration of revised LCDC IP ... Browse Code »

    Revised LCD controller in upcoming TI SoC which is an updated version of
    LCDC IP that was found on TI's DA850 SoC supports 2048*2048 resolution.
    Below are the encoding details:
    Width:
    Pixels Per Line = {pplmsb, ppllsb, 4'b1111} + 1
    Where pplmsb:1bit==>Raster Timing0[3], ppllsb:6bits==>Raster Timing0[9:4].
    And encoded value can range from 16 to 2048 in multiples of 16.

    Height:
    Lines Per Panel = {lpp_b10, lpp}
    Where lpp:10bits==>Raster Timing1[9:0], lpp_b10:1bit==>Raster Timing2[26].
    And encoded value can range from 1 to 2048, programmable range is 0 to
    2047.

    Patch is verified on emulation platform of upcoming SoC for updated
    feature and on DA850 platform to make sure nothing existing breaks.

    Signed-off-by: Manjunathappa, Prakash
    Signed-off-by: Florian Tobias Schandinat

    Manjunathappa, Prakash
     

13 Jul, 2011

1 commit

  • c6daf05b6   video: da8xx-fb: Interrupt configuration of revised LCDC IP ... Browse Code »

    An upcoming SoC of TI comes with an LCD controller which is an updated
    version of that found on TI's DA850 SoC. The da8xx-fb driver can support
    this LCD with some enhancements.
    This patch adds support for updated interrupt configuration on the new
    SoC.
    1) Registers for setting and clearing interrupts are different.
    2) Raw and masked status registers are different.
    The updates have been tested on an emulation platform for new features
    and the patch has been tested on DA850 platform to make sure nothing
    existing breaks.

    Signed-off-by: Manjunathappa, Prakash
    Signed-off-by: Paul Mundt

    Manjunathappa, Prakash
     

15 Jun, 2011

1 commit

24 May, 2011

1 commit

31 Mar, 2011

1 commit

26 Jan, 2011

1 commit

  • ac751efa6   console: rename acquire/release_console_sem() to console_lock/unlock() ... Browse Code »

    The -rt patches change the console_semaphore to console_mutex. As a
    result, a quite large chunk of the patches changes all
    acquire/release_console_sem() to acquire/release_console_mutex()

    This commit makes things use more neutral function names which dont make
    implications about the underlying lock.

    The only real change is the return value of console_trylock which is
    inverted from try_acquire_console_sem()

    This patch also paves the way to switching console_sem from a semaphore to
    a mutex.

    [akpm@linux-foundation.org: coding-style fixes]
    [akpm@linux-foundation.org: make console_trylock return 1 on success, per Geert]
    Signed-off-by: Torben Hohn
    Cc: Thomas Gleixner
    Cc: Greg KH
    Cc: Ingo Molnar
    Cc: Geert Uytterhoeven
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Torben Hohn
     

25 Jan, 2011

1 commit

01 Dec, 2010

1 commit

  • 93c176f39   video: da8xx: Register IRQ as last thing in driver probing. ... Browse Code »

    Following commit exposed a bug in driver:

    "fbdev: da8xx/omap-l1xx: implement double buffering"

    Bug is, if interrupt handler is called before initialization is
    finished, raster controller is enabled and following register
    modifications causes hardware to stay in a broken state.

    By looking at this one may say that proper locking is missing in
    this driver, and a more proper fix should be prepared. However,
    aformentioned commit causes a regression in the driver and some
    fix to current one should be applied first.

    Signed-off-by: Caglar Akyuz
    Signed-off-by: Paul Mundt

    Caglar Akyuz
     

25 May, 2010

1 commit

  • 1f9c3e1f0   fbdev: da8xx/omap-l1xx: implement double buffering ... Browse Code »

    This work includes the following:

    - Implement handler for FBIO_WAITFORVSYNC ioctl.

    - Allocate the data and palette buffers separately. A consequence of
    this is that the palette and data loading is now done in different
    phases. And that the LCD must be disabled temporarily after the palette
    is loaded but this will only happen once after init and each time the
    palette is changed. I think this is OK.

    - Allocate two (ping and pong) framebuffers from memory.

    - Add pan_display handler which toggles the LCDC DMA registers between
    the ping and pong buffers.

    Signed-off-by: Martin Ambrose
    Cc: Chaithrika U S
    Cc: Sudhakar Rajashekhara
    Cc: Krzysztof Helt
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Martin Ambrose
     

30 Mar, 2010

1 commit

  • 5a0e3ad6a   include cleanup: Update gfp.h and slab.h includes to prepare for breaking implic… ... Browse Code »

    …it slab.h inclusion from percpu.h

    percpu.h is included by sched.h and module.h and thus ends up being
    included when building most .c files. percpu.h includes slab.h which
    in turn includes gfp.h making everything defined by the two files
    universally available and complicating inclusion dependencies.

    percpu.h -> slab.h dependency is about to be removed. Prepare for
    this change by updating users of gfp and slab facilities include those
    headers directly instead of assuming availability. As this conversion
    needs to touch large number of source files, the following script is
    used as the basis of conversion.

    http://userweb.kernel.org/~tj/misc/slabh-sweep.py

    The script does the followings.

    * Scan files for gfp and slab usages and update includes such that
    only the necessary includes are there. ie. if only gfp is used,
    gfp.h, if slab is used, slab.h.

    * When the script inserts a new include, it looks at the include
    blocks and try to put the new include such that its order conforms
    to its surrounding. It's put in the include block which contains
    core kernel includes, in the same order that the rest are ordered -
    alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
    doesn't seem to be any matching order.

    * If the script can't find a place to put a new include (mostly
    because the file doesn't have fitting include block), it prints out
    an error message indicating which .h file needs to be added to the
    file.

    The conversion was done in the following steps.

    1. The initial automatic conversion of all .c files updated slightly
    over 4000 files, deleting around 700 includes and adding ~480 gfp.h
    and ~3000 slab.h inclusions. The script emitted errors for ~400
    files.

    2. Each error was manually checked. Some didn't need the inclusion,
    some needed manual addition while adding it to implementation .h or
    embedding .c file was more appropriate for others. This step added
    inclusions to around 150 files.

    3. The script was run again and the output was compared to the edits
    from #2 to make sure no file was left behind.

    4. Several build tests were done and a couple of problems were fixed.
    e.g. lib/decompress_*.c used malloc/free() wrappers around slab
    APIs requiring slab.h to be added manually.

    5. The script was run on all .h files but without automatically
    editing them as sprinkling gfp.h and slab.h inclusions around .h
    files could easily lead to inclusion dependency hell. Most gfp.h
    inclusion directives were ignored as stuff from gfp.h was usually
    wildly available and often used in preprocessor macros. Each
    slab.h inclusion directive was examined and added manually as
    necessary.

    6. percpu.h was updated not to include slab.h.

    7. Build test were done on the following configurations and failures
    were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
    distributed build env didn't work with gcov compiles) and a few
    more options had to be turned off depending on archs to make things
    build (like ipr on powerpc/64 which failed due to missing writeq).

    * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
    * powerpc and powerpc64 SMP allmodconfig
    * sparc and sparc64 SMP allmodconfig
    * ia64 SMP allmodconfig
    * s390 SMP allmodconfig
    * alpha SMP allmodconfig
    * um on x86_64 SMP allmodconfig

    8. percpu.h modifications were reverted so that it could be applied as
    a separate patch and serve as bisection point.

    Given the fact that I had only a couple of failures from tests on step
    6, I'm fairly confident about the coverage of this conversion patch.
    If there is a breakage, it's likely to be something in one of the arch
    headers which should be easily discoverable easily on most builds of
    the specific arch.

    Signed-off-by: Tejun Heo <tj@kernel.org>
    Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>

    Tejun Heo
     

16 Dec, 2009

5 commits

02 Dec, 2009

1 commit

  • 3510b8f7f   davinci: fb: fix frame buffer driver issues ... Browse Code »

    Following issues have been addressed on DA8XX/OMAP-L1XX:

    a. Screen misalignment during booting when frame buffer console is
    enabled.

    b. Driver was configured always in PSEUDOCOLOR mode. This patch
    dynamically configures the driver either in PSEUDOCOLOUR or TRUECOLOR
    mode depending on bpp.

    c. The RED and BLUE offsets were interchanged resulting in wrong
    bootup logo colour.

    This patch has been tested on DA830/OMAP-L137 and DA850/OMAP-L138 EVMs.

    Signed-off-by: Sudhakar Rajashekhara
    Cc: Steve Chen
    Cc: Pavel Kiryukhin
    Cc: Krzysztof Helt
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Sudhakar Rajashekhara
     

18 Nov, 2009

1 commit

08 Oct, 2009

1 commit

23 Sep, 2009

2 commits

  • 2f93e8f48   davinci-fb-frame-buffer-driver-for-ti-da8xx-omap-l1xx-v4 ... Browse Code »

    Since the previous version, return values in ioctl() function have been
    modified.

    [akpm@linux-foundation.org: simplify lcd_disable_raster()]
    Signed-off-by: Sudhakar Rajashekhara
    Signed-off-by: Pavel Kiryukhin
    Signed-off-by: Steve Chen
    Acked-by: Krzysztof Helt
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Sudhakar Rajashekhara
     
  • 4ed824d9a   davinci: fb: Frame Buffer driver for TI DA8xx/OMAP-L1xx ... Browse Code »

    Add LCD controller (LCDC) driver for TI's DA8xx/OMAP-L1xx architecture.
    LCDC specifications can be found at http://www.ti.com/litv/pdf/sprufm0a.

    LCDC on DA8xx consists of two independent controllers, the Raster
    Controller and the LCD Interface Display Driver (LIDD) controller. LIDD
    further supports character and graphic displays.

    This patch adds support for the graphic display (Sharp LQ035Q3DG01) found
    on the DA830 based EVM. The EVM details can be found at:
    http://support.spectrumdigital.com/boards/dskda830/revc/.

    Signed-off-by: Sudhakar Rajashekhara
    Signed-off-by: Pavel Kiryukhin
    Signed-off-by: Steve Chen
    Acked-by: Krzysztof Helt
    DESC
    davinci-fb-frame-buffer-driver-for-ti-da8xx-omap-l1xx-fix
    EDESC
    From: Andrew Morton

    fix kconfig indenting

    Cc: Krzysztof Helt
    Cc: Pavel Kiryukhin
    Cc: Steve Chen
    Cc: Sudhakar Rajashekhara
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Sudhakar Rajashekhara