linux-kernel - Re: [PATCH 2/4] dt-bindings: LoongArch: Add CTCISZ Ninenine Pi

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Message-ID: <aBsGozWwg_WQfe4R@pie>
Date: Wed, 7 May 2025 07:07:15 +0000
From: Yao Zi <ziyao@...root.org>
To: Yanteng Si <si.yanteng@...ux.dev>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Huacai Chen <chenhuacai@...nel.org>,
	WANG Xuerui <kernel@...0n.name>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Heiko Stuebner <heiko@...ech.de>, Junhao Xie <bigfoot@...ssfun.cn>,
	Rafał Miłecki <rafal@...ecki.pl>,
	Aradhya Bhatia <a-bhatia1@...com>,
	Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
	Binbin Zhou <zhoubinbin@...ngson.cn>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, loongarch@...ts.linux.dev,
	Mingcong Bai <jeffbai@...c.io>, Kexy Biscuit <kexybiscuit@...c.io>
Subject: Re: [PATCH 2/4] dt-bindings: LoongArch: Add CTCISZ Ninenine Pi

On Tue, May 06, 2025 at 04:58:50PM +0800, Yanteng Si wrote:
> 在 5/1/25 12:42 PM, Yao Zi 写道:
> > Ninenine Pi is an Loongson 2K0300-based development board produced by
> I think "Ninenine Pi" doesn't make sense. I browsed
> <https://bbs.ctcisz.com/forum.php?mod=forumdisplay&fid=2> and found that the
> Chinese name of this development board is "久久派". Interestingly, its
> selling price is 99 yuan. In Chinese, the Roman numeral "9" has the same
> pronunciation as the Chinese character "久".

> It seems that you intended to name the development board after its
> selling price.

I've confirmed with the vendor that they call the board "99pi" in
English which is rewritten as "Ninenine Pi" to avoid possibly unexpected
problems with a name starting with digits. This has nothing to do with
the price.

> But shouldn't it be
> "Ninety-nine Pi" in English? Or "99 Pi"? Perhaps "Jiujiu Pi" is a better
> option?

"Ninety-nine Pi" sounds too complicated for a board name and I don't
think "99" in "99pi" is meant to represent a number. Thus I'd like to
stick with "ninenine pi".

> 
> 
> Thanks,
> Yanteng

Best regards,
Yao Zi

> 
> > CTCISZ. Features include,
> > 
> > - 512MiB DDR4 RAM
> > - On-board eMMC storage
> > - Optional SD Card support
> > - 2 USB 2.0 Ports (OTG and HOST)
> > - 1 GbE Ethernet port
> > - Optional WiFi/BT support
> > - Audio output through 3.5mm phone connector
> > - Optional display output through RAW RGB interface
> > 
> > Add compatible string for the board.
> > 
> > Signed-off-by: Yao Zi <ziyao@...root.org>
> > ---
> >   Documentation/devicetree/bindings/loongarch/loongson.yaml | 5 +++++
> >   1 file changed, 5 insertions(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/loongarch/loongson.yaml b/Documentation/devicetree/bindings/loongarch/loongson.yaml
> > index e1a4a97b7576..aac4af9ee97a 100644
> > --- a/Documentation/devicetree/bindings/loongarch/loongson.yaml
> > +++ b/Documentation/devicetree/bindings/loongarch/loongson.yaml
> > @@ -14,6 +14,11 @@ properties:
> >       const: '/'
> >     compatible:
> >       oneOf:
> > +      - description: CTCISZ Ninenine Pi
> > +        items:
> > +          - const: ctcisz,ninenine-pi
> > +          - const: loongson,ls2k0300
> > +
> >         - description: Loongson-2K0500 processor based boards
> >           items:
> >             - const: loongson,ls2k0500-ref
> 
>