[00/15] Introduce Nuvoton ma35d1 SoC

From: Jacky Huang <ychuang3@nuvoton.com>

This patchset adds initial support for the Nuvoton ma35d1 SoC, including
initial device tree, clock driver, reset driver, and serial driver.

This patchset cover letter is based from the initial support for Nuvoton
ma35d1 to keep tracking the version history.

This patchset had been applied to Linux kernel 6.3-rc2 and tested on the
Nuvoton ma35d1 SOM evaluation board.

(ma35d1 information: https://www.nuvoton.com/products/microprocessors/arm-cortex-a35-mpus/)
MA35D1 porting on linux-5.10.y can be found at: https://github.com/OpenNuvoton/MPU-Family

Jacky Huang (15):
  arm64: Kconfig.platforms: Add config for Nuvoton MA35 platform
  arm64: defconfig: Add Nuvoton MA35 family support
  mfd: Add the header file of Nuvoton ma35d1 system manager
  dt-bindings: clock: nuvoton: add binding for ma35d1 clock controller
  dt-bindings: reset: nuvoton: add binding for ma35d1 IP reset control
  dt-bindings: mfd: syscon: Add nuvoton,ma35d1-sys compatible
  dt-bindings: arm: Add initial bindings for Nuvoton platform
  dt-bindings: clock: Document ma35d1 clock controller bindings
  dt-bindings: reset: Document ma35d1 reset controller bindings
  dt-bindings: serial: Document ma35d1 uart controller bindings
  arm64: dts: nuvoton: Add initial ma35d1 device tree
  clk: nuvoton: Add clock driver for ma35d1 clock controller
  reset: Add Nuvoton ma35d1 reset driver support
  tty: serial: Add Nuvoton ma35d1 serial driver support
  MAINTAINERS: Add entry for NUVOTON MA35

 .../devicetree/bindings/arm/nuvoton.yaml      |  30 +
 .../bindings/clock/nuvoton,ma35d1-clk.yaml    |  83 ++
 .../devicetree/bindings/mfd/syscon.yaml       |   1 +
 .../bindings/reset/nuvoton,ma35d1-reset.yaml  |  50 +
 .../serial/nuvoton,ma35d1-serial.yaml         |  52 +
 MAINTAINERS                                   |  12 +
 arch/arm64/Kconfig.platforms                  |   9 +
 arch/arm64/boot/dts/nuvoton/Makefile          |   2 +
 .../boot/dts/nuvoton/ma35d1-iot-512m.dts      |  24 +
 .../boot/dts/nuvoton/ma35d1-som-256m.dts      |  23 +
 arch/arm64/boot/dts/nuvoton/ma35d1.dtsi       | 272 +++++
 arch/arm64/configs/defconfig                  |   1 +
 drivers/clk/Makefile                          |   1 +
 drivers/clk/nuvoton/Makefile                  |   4 +
 drivers/clk/nuvoton/clk-ma35d1-divider.c      | 144 +++
 drivers/clk/nuvoton/clk-ma35d1-pll.c          | 534 ++++++++++
 drivers/clk/nuvoton/clk-ma35d1.c              | 970 ++++++++++++++++++
 drivers/clk/nuvoton/clk-ma35d1.h              | 198 ++++
 drivers/reset/Kconfig                         |   6 +
 drivers/reset/Makefile                        |   1 +
 drivers/reset/reset-ma35d1.c                  | 152 +++
 drivers/tty/serial/Kconfig                    |  18 +
 drivers/tty/serial/Makefile                   |   1 +
 drivers/tty/serial/ma35d1_serial.c            | 842 +++++++++++++++
 drivers/tty/serial/ma35d1_serial.h            |  93 ++
 .../dt-bindings/clock/nuvoton,ma35d1-clk.h    | 253 +++++
 .../dt-bindings/reset/nuvoton,ma35d1-reset.h  | 108 ++
 include/linux/mfd/ma35d1-sys.h                |  95 ++
 include/uapi/linux/serial_core.h              |   3 +
 29 files changed, 3982 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/nuvoton.yaml
 create mode 100644 Documentation/devicetree/bindings/clock/nuvoton,ma35d1-clk.yaml
 create mode 100644 Documentation/devicetree/bindings/reset/nuvoton,ma35d1-reset.yaml
 create mode 100644 Documentation/devicetree/bindings/serial/nuvoton,ma35d1-serial.yaml
 create mode 100644 arch/arm64/boot/dts/nuvoton/ma35d1-iot-512m.dts
 create mode 100644 arch/arm64/boot/dts/nuvoton/ma35d1-som-256m.dts
 create mode 100644 arch/arm64/boot/dts/nuvoton/ma35d1.dtsi
 create mode 100644 drivers/clk/nuvoton/Makefile
 create mode 100644 drivers/clk/nuvoton/clk-ma35d1-divider.c
 create mode 100644 drivers/clk/nuvoton/clk-ma35d1-pll.c
 create mode 100644 drivers/clk/nuvoton/clk-ma35d1.c
 create mode 100644 drivers/clk/nuvoton/clk-ma35d1.h
 create mode 100644 drivers/reset/reset-ma35d1.c
 create mode 100644 drivers/tty/serial/ma35d1_serial.c
 create mode 100644 drivers/tty/serial/ma35d1_serial.h
 create mode 100644 include/dt-bindings/clock/nuvoton,ma35d1-clk.h
 create mode 100644 include/dt-bindings/reset/nuvoton,ma35d1-reset.h
 create mode 100644 include/linux/mfd/ma35d1-sys.h

On Sat, Mar 18, 2023, at 04:07, Jacky Huang wrote:
> On 2023/3/18 上午 12:06, Krzysztof Kozlowski wrote:
>> On 17/03/2023 14:21, Arnd Bergmann wrote:
>>> I only now saw that you had already submitted this several times
>>> at the beginning of last year, and this is technically 'v5'
>>> of the series, and it would make sense to add 'v6' to the subject
>>> next time and link back to the previous [1] and this[2] submission
>>> on lore.kernel.org.
>> ... and address previous feedback. Or at least make it clear in
>> changelog that you addressed it, so our review was not ignored.
>>
>
> Of course, I will add back the changelog.
>
> And, I have a question. If subsequent modifications made to a patch, 
> should the
>
> "Reviewed-by" still be valid? Can we keep it?

In general yes, but it's a bit of a grey area and you have
to apply common sense. Examples where I would drop the
Reviewed-by tag are

- if you changed something based on feedback from a reviewer and
  they provided a Reviewed-by tag based on that changed, but then
  another person asked you change the same thing differently, or
  back to the original version

- if you combine a patch with another one that was not also
  reviewed by the same person.

      Arnd