Hi Pali, On Mon, 5 Sept 2022 at 03:31, Pali Rohár <p...@kernel.org> wrote: > > On certain places it is required to flush output print buffers to ensure > that text strings were sent to console or serial devices. For example when > printing message that U-Boot is going to boot kernel or when U-Boot is > going to change baudrate of terminal device. > > Therefore introduce a new flush() and fflush() functions into console code. > These functions will call .flush callback of associated stdio_dev device. > > As this function may increase U-Boot side, allow to compile U-Boot without > this function. For this purpose there is a new config CONSOLE_FLUSH_SUPPORT > which is enabled by default and can be disabled. It is a good idea to have > this option enabled for all boards which have enough space for it. > > When option is disabled when U-Boot defines just empty static inline > function fflush() to avoid ifdefs in other code. > > Signed-off-by: Pali Rohár <p...@kernel.org> > --- > Changes in v3: > * Added macro STDIO_DEV_ASSIGN_FLUSH() > --- > common/Kconfig | 6 +++++ > common/console.c | 61 +++++++++++++++++++++++++++++++++++++++++++++ > include/_exports.h | 3 +++ > include/stdio.h | 15 +++++++++++ > include/stdio_dev.h | 7 ++++++ > 5 files changed, 92 insertions(+)
Reviewed-by: Simon Glass <s...@chromium.org>
