linux-kernel - 回覆: 回覆: 回覆: [net-next 4/4] net: ftgmac100: add RGMII delay for AST2600

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Message-ID:
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Date: Thu, 20 Mar 2025 08:06:23 +0000
From: Jacky Chou <jacky_chou@...eedtech.com>
To: Krzysztof Kozlowski <krzk@...nel.org>, Andrew Lunn <andrew@...n.ch>
CC: Russell King <linux@...linux.org.uk>, Maxime Chevallier
	<maxime.chevallier@...tlin.com>, "andrew+netdev@...n.ch"
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Subject:
 回覆: 回覆: 回覆: [net-next 4/4] net: ftgmac100: add RGMII delay for AST2600

Hi Krzysztof,

> 
> git grep multipleOf:
> 
> e.g.
> oneOf:
>  - minimum: 45
>    maximum: ...
>    multipleOf: 45
>  - minimum: 1500
>    maximum: ...
>    multipleOf: 250
> 
> >
> > Lets see what the DT Maintainers say, but it could be you need two
> > different compatibles for mac0/1 to mac2/3 because they are not
> > actually compatible! You can then have a list per compatible.
> If this is the only, *only* difference, then just go with vendor property matching
> register value... but oh, wait, how person reading and writing the DTS would
> understand if "0x2" means 90 ps or 1750 ps? I don't see how the original
> binding was helping here in total. Just moving the burden from driver
> developer to DTS developer. :/
> 
> If different instances are not the same, means the devices are not the same, so
> two compatibles seem reasonable.

Thank you for your reply and information.
We will modify this section by adding more descriptions and referencing other yaml.

Thanks,
Jacky