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    SubjectRe: [PATCH] 8250: Don't restore NS16550 mode when console suspend is disabled

    On Wed, 13 May 2009, Alan Cox wrote:
    > Then hard coding is no improvement either. It needs to restore the mode
    > that was present at suspend.

    Alan, you're missing the fact that this is a special-case for "this is the
    console, and we're not suspending consoles AT ALL".

    IOW, it was never suspended either, and it's a case that is known to be
    fundamentally buggy (we're suspending all the PCI bridges, but not a
    serial device that may be behind them!), but often work in _practice_
    (because people don't use this thing for random serial devices, but for
    things like integrated serial lines that don't lose power).

    So we _could_ just save the mode, but that isn't really what this patch is
    all about. The patch in question is about a total hack to avoid touching a
    piece of hardware that we simply don't consider normal.


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