[PATCH v3 0/5] Unify simple reset drivers

[Philipp Zabel]

Hi,

This series introduces common reset ops for simple reset controllers.
"Simple" in this context means that they allow to directly control reset
lines by setting and clearing bits in a single register or in a contiguous
register range that is exclusive to the reset controller.

Parts of the sunxi driver and the socfpga, stm32, and zx2967 drivers are
merged into a single reset-simple driver.
The sunxi driver is kept around to register the early reset controllers,
but it reuses the exported reset_simple_ops.

The first patch depends on [1] or commit 726cc791c9b9 ("reset: sunxi: fix
number of reset lines") in linux-next. On linux-next, the second patch will
trivially conflict with commit 7799167b7a14 ("regulator: Convert to using
%pOF instead of full_name").

Changes since v2 [2]:
 - Use of_device_get_match_data instead of of_match_device,
   add kerneldoc comment for struct reset_simple_devdata and struct
   reset_simple_data, suggested by Chen-Yu.
 - Add reg_offset and nr_reset override to struct reset_simple_devdata,
   instead of special casing socfpga, always check "altr,modrst-offset"
   device tree property if a default reg_offset is set, based on
   Alexandru's advice.
 - Rename "*inverted" properties to "*active_low".

[1] https://patchwork.kernel.org/patch/9895433/
[2] https://patchwork.kernel.org/patch/9895833/
    https://patchwork.kernel.org/patch/9895819/
    https://patchwork.kernel.org/patch/9895831/
    https://patchwork.kernel.org/patch/9895815/
    https://patchwork.kernel.org/patch/9895841/

regards
Philipp

Philipp Zabel (5):
  reset: add reset-simple to unify socfpga, stm32, sunxi, and zx2967
  reset: socfpga: use the reset-simple driver
  reset: stm32: use the reset-simple driver
  reset: zx2967: use the reset-simple driver
  reset: simple: read back to make sure changes are applied

 MAINTAINERS                   |   1 -
 drivers/reset/Kconfig         |  24 ++----
 drivers/reset/Makefile        |   4 +-
 drivers/reset/reset-simple.c  | 188 ++++++++++++++++++++++++++++++++++++++++++
 drivers/reset/reset-simple.h  |  45 ++++++++++
 drivers/reset/reset-socfpga.c | 154 ----------------------------------
 drivers/reset/reset-stm32.c   | 108 ------------------------
 drivers/reset/reset-sunxi.c   | 104 ++---------------------
 drivers/reset/reset-zx2967.c  |  99 ----------------------
 9 files changed, 249 insertions(+), 478 deletions(-)
 create mode 100644 drivers/reset/reset-simple.c
 create mode 100644 drivers/reset/reset-simple.h
 delete mode 100644 drivers/reset/reset-socfpga.c
 delete mode 100644 drivers/reset/reset-stm32.c
 delete mode 100644 drivers/reset/reset-zx2967.c

-- 
2.11.0