Re: [PATCH v8 2/5] dt-bindings: soc: sophgo: Add Sophgo system control module

From: Chen Wang
Date: Tue Jan 23 2024 - 04:28:42 EST



On 2024/1/22 20:56, Krzysztof Kozlowski wrote:
On 22/01/2024 11:11, Chen Wang wrote:
+    $ref: /schemas/clock/sophgo,sg2042-sysclk.yaml#
+    type: object
Why isn't this merged here? You do not need the child node really...
unless the clock inputs are specific to that clock controller and you
will have here more devices? But where are they in such case?
I don't see more devices will be included later. It should be ok to
merge them into one.
hi, Krzysztof,

After some double check, I find we will have more devices in
system-control. For example, in the SYS_CTRL area, there is also a
section of registers used to control the "General Purpose Interrupt".
The pcie controller of sg2042 will use this interrupt controller which
is defined in SYS_CTRL, we will add it in later work.

I expect then all devices to be documented.
hi, Krzysztof.

First, I'm very sorry for having double-checked with you for this system
controller and child node issue, but this time I'm sure there should be
no more child nodes except the clock and interrupt controllers, though
there are some other registers in SYS_CTRL section, but we will not use
them till now.

One question, when you say "to be documented", do you mean I need write
binding/yaml files for other child node? But they exceed the scope of
this patchset (this patchset is for clock support only). That's why I
That's not true. The scope of this patch is to add DT binding
description for your device. If you choose any other scope, I don't
agree and I am not going to provide positive review.

suggest just add clock-controller in this patchset and to add the
interrupt controller in another patchset for pcie support. This
mechanism should be suitable for our expansion.
How then are you going to solve the requirement: "DO attempt to make
bindings complete even"?

https://elixir.bootlin.com/linux/v6.1-rc1/source/Documentation/devicetree/bindings/writing-bindings.rst#L17
Learned and I will try to make bindings for system-controller device complete, thanks.

Best regards,
Krzysztof