Doug / smarc-fsl-linux-kernel

04 Sep, 2013

1 commit

  • 2f01ea908   Merge tag 'tty-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty ... Browse Code »

    Pull tty/serial driver patches from Greg KH:
    "Here's the big tty/serial driver pull request for 3.12-rc1.

    Lots of n_tty reworks to resolve some very long-standing issues,
    removing the 3-4 different locks that were taken for every character.
    This code has been beaten on for a long time in linux-next with no
    reported regressions.

    Other than that, a range of serial and tty driver updates and
    revisions. Full details in the shortlog"

    * tag 'tty-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (226 commits)
    hvc_xen: Remove unnecessary __GFP_ZERO from kzalloc
    serial: imx: initialize the local variable
    tty: ar933x_uart: add device tree support and binding documentation
    tty: ar933x_uart: allow to build the driver as a module
    ARM: dts: msm: Update uartdm compatible strings
    devicetree: serial: Document msm_serial bindings
    serial: unify serial bindings into a single dir
    serial: fsl-imx-uart: Cleanup duplicate device tree binding
    tty: ar933x_uart: use config_enabled() macro to clean up ifdefs
    tty: ar933x_uart: remove superfluous assignment of ar933x_uart_driver.nr
    tty: ar933x_uart: use the clk API to get the uart clock
    tty: serial: cpm_uart: Adding proper request of GPIO used by cpm_uart driver
    serial: sirf: fix the amount of serial ports
    serial: sirf: define macro for some magic numbers of USP
    serial: icom: move array overflow checks earlier
    TTY: amiserial, remove unnecessary platform_set_drvdata()
    serial: st-asc: remove unnecessary platform_set_drvdata()
    msm_serial: Send more than 1 character on the console w/ UARTDM
    msm_serial: Add support for non-GSBI UARTDM devices
    msm_serial: Switch clock consumer strings and simplify code
    ...

    Linus Torvalds
     

07 Aug, 2013

1 commit

  • 2cfe6c4ac   printk: Fix return of braille_register_console() ... Browse Code »

    Some of my configs I test with have CONFIG_A11Y_BRAILLE_CONSOLE set.
    When I started testing against v3.11-rc4 my console went bonkers. Using
    ktest to bisect the issue, it came down to:

    commit bbeddf52a "printk: move braille console support into separate
    braille.[ch] files"

    Looking into the patch I found the problem. It's with the return of
    braille_register_console(). As anything other than NULL is considered a
    failure.

    But for those of us that have CONFIG_A11Y_BRAILLE_CONSOLE set but do not
    define a "brl" or "brl=" on the command line, we still may want a
    console that those with sight can still use.

    Return NULL (success) if "brl" or "brl=" is not on the console line.

    Signed-off-by: Steven Rostedt
    Acked-by: Joe Perches
    Cc: Andrew Morton
    Signed-off-by: Linus Torvalds

    Steven Rostedt
     

05 Aug, 2013

1 commit

  • 16cf48a6d   register_console: prevent adding the same console twice ... Browse Code »

    This patch guards the console_drivers list to be corrupted. The
    for_each_console() macro insist on a strictly forward list ended by NULL:

    con0->next->con1->next->NULL

    Without this patch it may happen easily to destroy this list for example by
    adding 'earlyprintk' twice, especially on embedded devices where the early
    console is often a single static instance. This will result in the following
    list:

    con0->next->con0

    This in turn will result in an endless loop in console_unlock() later on by
    printing the first __log_buf line endlessly.

    Signed-off-by: Andreas Bießmann
    Cc: Kay Sievers
    Cc: Ben Hutchings
    Signed-off-by: Greg Kroah-Hartman

    Andreas Bießmann
     

01 Aug, 2013

5 commits