Introduce devm_fpga_mgr_register()

This patchset introduces the devm_fpga_mgr_register API, a devres managed version of fpga_mgr_register().

It reduces boilerplate being repeated literally in every single driver by moving it to the fpga-mgr core.

Changes from v1:
- Addressed Hao's feedback
- priv -> res
- comment style
- use fpga_mgr_devres consistently

- Addressed Tom's feedback
- err -> ret
- removed removal of deprecated API
- added Reviewed-by: tags

Moritz Fischer (10):
fpga: fpga-mgr: Add devm_fpga_mgr_register() API
fpga: fpga-mgr: altera-ps-spi: Simplify registration
fpga: fpga-mgr: dfl-fme-mgr: Simplify registration
fpga: fpga-mgr: ice40-spi: Simplify registration
fpga: fpga-mgr: machxo2-spi: Simplify registration
fpga: fpga-mgr: socfpga: Simplify registration
fpga: fpga-mgr: ts73xx: Simplify registration
fpga: fpga-mgr: xilinx-spi: Simplify registration
fpga: fpga-mgr: zynqmp: Simplify registration
fpga: fpga-mgr: altera-pr-ip: Simplify registration

 drivers/fpga/altera-pr-ip-core-plat.c  | 10 ----
 drivers/fpga/altera-pr-ip-core.c       | 14 +----
 drivers/fpga/altera-ps-spi.c           | 14 +----
 drivers/fpga/dfl-fme-mgr.c             | 12 +---
 drivers/fpga/fpga-mgr.c                | 76 ++++++++++++++++++++++----
 drivers/fpga/ice40-spi.c               | 14 +----
 drivers/fpga/machxo2-spi.c             | 14 +----
 drivers/fpga/socfpga.c                 | 14 +----
 drivers/fpga/ts73xx-fpga.c             | 14 +----
 drivers/fpga/xilinx-spi.c              | 14 +----
 drivers/fpga/zynqmp-fpga.c             | 21 +------
 include/linux/fpga/altera-pr-ip-core.h |  1 -
 include/linux/fpga/fpga-mgr.h          |  2 +
 13 files changed, 77 insertions(+), 143 deletions(-)

2.28.0