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    Subject[PATCH v2 0/3] TTY improve n_gsm support
    Date
    Hello,

    This series is the second version of patch improving n_gms support
    especially with TELIT LE910. However the fix should benefit to any
    modem supporting cmux.

    The first patch is just about improving debugging output.

    The second one removes a tty optimization which make the LE910 hang.

    The last one fixes an issue observed on the LE910 but should benefit
    to all the modem. We observed that pretty quickly the transfer done
    using the virtual tty were blocked. We found that it was due of a
    wakeup to the real tty. Without this fix, the real tty wait for
    indefinitely.

    Thanks to Jiri Slaby for the review.

    Changelog:
    v1 -> v2:
    - don't replace the pr_info by pr_debug
    - remove the superfluous printk("\n");
    - use --follow option with git log to find the original commit to fix
    - use tty_port_tty_wakeup
    - use 'for' loop instead of 'while'

    Gregory

    Gregory CLEMENT (3):
    tty: n_gsm: Improve debug output
    tty: n_gsm: Fix SOF skipping
    tty: n_gsm: Fix waking up upper tty layer when room available

    drivers/tty/n_gsm.c | 48 +++++++++++++++++++++++----------------------
    1 file changed, 25 insertions(+), 23 deletions(-)

    --
    2.26.2

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