[v1,00/14] PolarFire SoC reset controller & clock cleanups

Message

Conor Dooley June 30, 2022, 8:05 a.m. UTC

Hey all,
I know I have not sat on the RFC I sent about the aux. bus parts
for too long, but figured I'd just send the whole thing anyway to all
lists etc.

Kinda two things happening in this series, but I sent it together to
ensure the second part would apply correctly.

The first is the reset controller that I promised after discovering the
issue triggered by CONFIG_PM & the phy not coming up correctly. I have
now removed all the messing with resets from clock enable/disable
functions & now use the aux bus to set up a reset controller driver.
Since I needed something to test it, I hooked up the reset for the
Cadence MACB on PolarFire SoC.

The second part adds rate control for the MSS PLL clock, followed by
some simplifications to the driver & conversions of some custom structs
to the corresponding structs in the framework.

Thanks,
Conor.

FYI, there'll be maintainers conflicts with an obvious resolution in
-next, but I cannot rebase on then b/c unrelated changes have broken
boot there at the moment.

Conor Dooley (14):
  dt-bindings: clk: microchip: mpfs: add reset controller support
  dt-bindings: net: cdns,macb: document polarfire soc's macb
  clk: microchip: mpfs: add reset controller
  reset: add polarfire soc reset support
  MAINTAINERS: add polarfire soc reset controller
  net: macb: add polarfire soc reset support
  riscv: dts: microchip: add mpfs specific macb reset support
  clk: microchip: mpfs: add module_authors entries
  clk: microchip: mpfs: add MSS pll's set & round rate
  clk: microchip: mpfs: move id & offset out of clock structs
  clk: microchip: mpfs: simplify control reg access
  clk: microchip: mpfs: delete 2 line mpfs_clk_register_foo()
  clk: microchip: mpfs: convert cfg_clk to clk_divider
  clk: microchip: mpfs: convert periph_clk to clk_gate

 .../bindings/clock/microchip,mpfs.yaml        |  17 +-
 .../devicetree/bindings/net/cdns,macb.yaml    |   1 +
 MAINTAINERS                                   |   1 +
 arch/riscv/boot/dts/microchip/mpfs.dtsi       |   7 +-
 drivers/clk/microchip/Kconfig                 |   1 +
 drivers/clk/microchip/clk-mpfs.c              | 377 +++++++++---------
 drivers/net/ethernet/cadence/macb_main.c      |  25 +-
 drivers/reset/Kconfig                         |   9 +
 drivers/reset/Makefile                        |   2 +-
 drivers/reset/reset-mpfs.c                    | 145 +++++++
 include/soc/microchip/mpfs.h                  |   8 +
 11 files changed, 393 insertions(+), 200 deletions(-)
 create mode 100644 drivers/reset/reset-mpfs.c


base-commit: b13baccc3850ca8b8cccbf8ed9912dbaa0fdf7f3