[PATCH v4 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.

Changes since v3 [1]:
 - Split the first patch into reset-simple addition (now patch 1)
   and reset-sunxi conversion (now patch 2). I'd really like to get
   an ok from the sunxi maintainers for the second one.
 - Rename reset_simple_set to reset_simple_update, as that function
   is used to both set and clear the control bit.
 - Changed reset-simple to only ever warn about the missing
   "altr,modrst-offset" property on socfpga, in case another compatible
   will use a non-zero default reg_offset in the future.
 - Dropped patch 5 ("reset: simple: read back to make sure changes are
   applied"). Its use is purely theoretical, and this series is about
   unifying the existing drivers.


[1] https://patchwork.kernel.org/patch/9903375/
    https://patchwork.kernel.org/patch/9903373/
    https://patchwork.kernel.org/patch/9903371/
    https://patchwork.kernel.org/patch/9903377/
    https://patchwork.kernel.org/patch/9903379/

regards
Philipp

Philipp Zabel (5):
  reset: add reset-simple to unify socfpga, stm32, sunxi, and zx2967
  reset: sunxi: use reset-simple driver
  reset: socfpga: use the reset-simple driver
  reset: stm32: use the reset-simple driver
  reset: zx2967: use the reset-simple driver

 MAINTAINERS                   |   1 -
 drivers/reset/Kconfig         |  24 ++----
 drivers/reset/Makefile        |   4 +-
 drivers/reset/reset-simple.c  | 186 ++++++++++++++++++++++++++++++++++++++++++
 drivers/reset/reset-simple.h  |  45 ++++++++++
 drivers/reset/reset-socfpga.c | 157 -----------------------------------
 drivers/reset/reset-stm32.c   | 108 ------------------------
 drivers/reset/reset-sunxi.c   | 104 ++---------------------
 drivers/reset/reset-zx2967.c  |  99 ----------------------
 9 files changed, 247 insertions(+), 481 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