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Date:   Wed, 2 Aug 2023 08:50:45 +0100
From:   Conor Dooley <conor.dooley@microchip.com>
To:     Yinbo Zhu <zhuyinbo@loongson.cn>
CC:     Conor Dooley <conor@kernel.org>,
        Linus Walleij <linus.walleij@linaro.org>,
        Bartosz Golaszewski <brgl@bgdev.pl>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>,
        <linux-gpio@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>, Jianmin Lv <lvjianmin@loongson.cn>,
        <wanghongliang@loongson.cn>, Liu Peibao <liupeibao@loongson.cn>,
        <loongson-kernel@lists.loongnix.cn>
Subject: Re: [PATCH v2 1/2] gpio: dt-bindings: add parsing of loongson gpio
 offset
Message-ID: <20230802-bunkbed-siamese-57ee53bdf273@wendy>
References: <20230731091059.17323-1-zhuyinbo@loongson.cn>
 <20230731091059.17323-2-zhuyinbo@loongson.cn>
 <20230731-setback-such-61815ee3ef51@spud>
 <041bf8a6-8d91-c2ce-6752-aa7255f946c7@loongson.cn>
 <20230801-whenever-imitation-b2759b212f6b@spud>
 <a5c27913-2a88-d376-0130-22ca8a3d4516@loongson.cn>
 <20230801-varsity-chemo-09cc5e250ded@spud>
 <26adb487-f8c5-9cf4-5b31-070e9161e761@loongson.cn>
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On Wed, Aug 02, 2023 at 03:44:17PM +0800, Yinbo Zhu wrote:
> =E5=9C=A8 2023/8/2 =E4=B8=8B=E5=8D=883:22, Conor Dooley =E5=86=99=E9=81=
=93:
> > On Wed, Aug 02, 2023 at 09:38:34AM +0800, Yinbo Zhu wrote:
> > > =E5=9C=A8 2023/8/1 =E4=B8=8B=E5=8D=8811:54, Conor Dooley =E5=86=99=E9=
=81=93:
> > > > On Tue, Aug 01, 2023 at 04:34:30PM +0800, Yinbo Zhu wrote:

> > > > > Sorry, I may not have described it clearly before, the ls2k500 wa=
s only
> > > > > as a example, actually, Loongson GPIO controllers (2k500,2k1000,e=
g)come
> > > > > in multiple variants that are compatible except for certain regis=
ter
> > > > > offset values.  So above all offset device property was used to i=
n all
> > > > > loongson gpio controller.
> > > >=20
> > > > But it would be good to know why they are different. Do they each
> > > > support some different features, or was there some other reason for
> > > > making controllers like this?
> > >=20
> > >=20
> > > There are no other reasons, just differences in these offset addresse=
s.
> >=20
> > Huh. Do you have a link to a devicetree for the ls2k500?
>=20
>=20
> Yes,  there was a link about ls2k500 dts,  but that ls2k500 dts has not
> yet added a gpio node.  this gpio node will be added later.

You must have something that you used to test with, no? I don't mind if
it is not a patch, but rather is some WIP - I'd just like to see user of
the binding :)

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