[PATCH 0/2] CONFIG_EARLY_TIMER: Fix EAGAIN issue and use DM too

Johannes Krottmayer krjdev at gmail.com
Thu Mar 10 19:45:47 CET 2022


I'm currently working on support for a STMicroelectronics board. I have
written a DM driver which implements the timer_early_* functions. But
noticed an issue when the configuration switch is set.

Here this leads in an EAGAIN issue, becaues the DM sub-system isn't
running at this point.

I modified the routines here, because it's also could fail. An addintionl
feature is, that if CONFIG_EARLY_TIMER first it probes if, the DM timer
is present, if not it uses the timer_early_* functions.

Have compiled it in both configurations, and it works as accepted.

Kind regards,


Signed-off-by: Johannes Krottmayer <krjdev at gmail.com>
Cc: Tom Rini <trini at konsulko.com>


Johannes Krottmayer (2):
  common: board_f.c: Fix EAGAIN issue when CONFIG_TIMER_EARLY is
  lib: time.c: Try also DM timer, when CONFIG_TIMER_EARLY is selected

 common/board_f.c |  6 ------
 lib/time.c       | 46 ++++++++++++++++++++++++++++++++--------------
 2 files changed, 32 insertions(+), 20 deletions(-)


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