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
