Hi Vladimir, Bryan,
On 9/18/2024 7:16 AM, Vladimir Zapolskiy wrote:
Hi Bryan,
On 9/18/24 01:40, Bryan O'Donoghue wrote:
On 13/09/2024 06:06, Vladimir Zapolskiy wrote:
On 9/13/24 01:41, Bryan O'Donoghue wrote:
On 12/09/2024 21:57, Vladimir Zapolskiy wrote:
3. Required not optional in the yaml
=> You can't use the PHY without its regulators
No, the supplies shall be optional, since it's absolutely possible to
have
such a board, where supplies are merely not connected to the SoC.
For any _used_ PHY both supplies are certainly required.
That's what the yaml/dts check for this should achieve.
I believe it is technically possible by writing an enormously complex
scheme, when all possible "port" cases and combinations are listed.
Do you see any simpler way? Do you insist that it is utterly needed?
I asked Krzysztof about this offline.
He said something like
Quote:
This is possible, but I think not between child nodes.
https://elixir.bootlin.com/linux/v6.11-rc7/source/Documentation/
devicetree/bindings/example-schema.yaml#L194
You could require something in children, but not in parent node. For
children something around:
https://elixir.bootlin.com/linux/v6.4-rc7/source/Documentation/
devicetree/bindings/net/qcom,ipa.yaml#L174
allOf:
- if:
required:
- something-in-parent
then:
properties:
child-node:
required:
- something-in-child
I will see if I can turn that into a workable proposal/patch.
thank you for pushing my review request forward.
Overall I believe making supply properties as optional ones is sufficient,
technically straightforward and merely good enough, thus please let me
ask you to ponder on this particular variant one more time.
So, we are discussing two things.
1# Use separate supplies for each CSI block, looks like there is no
doubt about it anymore. So, I will update it just like based on suggestion.
csiphyX-vdda-phy-supply
csiphyX-vdda-pll-supply
Then I will need below items in the required list if they are required.
required:
- csiphy0-vdda-phy-supply
- csiphy0-vdda-pll-supply
- csiphy1-vdda-phy-supply
- csiphy1-vdda-pll-supply
...
- csiphy7-vdda-phy-supply
- csiphy7-vdda-pll-supply
2# Regarding the CSI supplies, if they need to be making as optional?
Looks like there is no conclusion now.
@Bryan, do you agree with this?
Thanks,
Depeng
