[PATCH v4 00/10] Use logging feature instead of FPGA_DEBUG

[Alexander Dahl <ada@thorsis.com>]

Hei hei,

while working on FPGA support for a new device I discovered debug
logging in some FPGA drivers is still done as in the old days.  Bring
that to what I thougt would be the currently preferred approach.

Notes: Adding those Kconfig symbols in patch 1 is just to be able to
build two of the old drivers.

All drivers touched were build tested with sandbox_defconfig and GCC 8
on Debian GNU/Linux 10 (buster).

Lines with other possibly questionable output were not touched, only
what seemed to be designated debug output, and only for FPGA drivers
having that ancient FPGA_DEBUG / PRINTF macros, so there's room for
future improvements.

Changelog:

v3 -> v4:
- Reordered patches, Kconfig patch comes first now (made it easier to
  build and test the series step by step)
- Added three patches fixing printf compiler warnings first, before
  changing to the new logging framework (so CI should not fail anymore
  with -Werror)

v2 -> v3:
- Patch introducing FPGA uclass was completely reworked, sent
  independently from this series, and applied already, thus removed
- Because requiring that new FPGA uclass changes, rebased on Michal's
  microblaze branch '20221005'
- Removed '"%s …", __func__' and '"%d …", __line__' from log messages,
  because log framework can add those (enabled by CONFIG_LOGF_FUNC and
  CONFIG_LOGF_LINE)

v1 -> v2:
- Rebased on master
- Added patch to introduce new FPGA uclass in front of the other patches
- Use that new uclass as log category
- Slightly reworded cover letter

Greets
Alex

Cc: Michal Simek <michal.simek@amd.com>

Alexander Dahl (10):
  fpga: Add missing Kconfig symbols for old FPGA drivers
  fpga: spartan2: Fix printf arguments warning
  fpga: spartan3: Fix printf arguments warning
  fpga: virtex2: Fix printf format string warnings
  fpga: altera: Use logging feature instead of FPGA_DEBUG
  fpga: cyclon2: Use logging feature instead of FPGA_DEBUG
  fpga: ACEX1K: Use logging feature instead of FPGA_DEBUG
  fpga: spartan2: Use logging feature instead of FPGA_DEBUG
  fpga: spartan3: Use logging feature instead of FPGA_DEBUG
  fpga: virtex2: Use logging feature instead of FPGA_DEBUG

 drivers/fpga/ACEX1K.c   | 37 +++++++++----------
 drivers/fpga/Kconfig    | 12 +++++++
 drivers/fpga/altera.c   | 11 +++---
 drivers/fpga/cyclon2.c  | 38 +++++++++-----------
 drivers/fpga/spartan2.c | 80 +++++++++++++++++++----------------------
 drivers/fpga/spartan3.c | 80 +++++++++++++++++++----------------------
 drivers/fpga/virtex2.c  | 69 ++++++++++++++++-------------------
 7 files changed, 152 insertions(+), 175 deletions(-)


base-commit: 2d8cf392a77815f062446ef441f1078958dc1b2a
-- 
2.30.2