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SubjectRE: [Patch v6] dt-bindings: media: s5p-mfc: convert bindings to json-schema
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> -----Original Message-----
> From: Krzysztof Kozlowski [mailto:krzysztof.kozlowski@linaro.org]
> Sent: 10 March 2023 14:38
> To: Aakarsh Jain <aakarsh.jain@samsung.com>; linux-arm-
> kernel@lists.infradead.org; linux-media@vger.kernel.org; linux-
> kernel@vger.kernel.org; devicetree@vger.kernel.org
> Cc: m.szyprowski@samsung.com; andrzej.hajda@intel.com;
> mchehab@kernel.org; hverkuil-cisco@xs4all.nl;
> ezequiel@vanguardiasur.com.ar; jernej.skrabec@gmail.com;
> benjamin.gaignard@collabora.com; krzysztof.kozlowski+dt@linaro.org;
> stanimir.varbanov@linaro.org; dillon.minfei@gmail.com;
> david.plowman@raspberrypi.com; mark.rutland@arm.com;
> robh+dt@kernel.org; krzk+dt@kernel.org; andi@etezian.org;
> alim.akhtar@samsung.com; aswani.reddy@samsung.com;
> pankaj.dubey@samsung.com
> Subject: Re: [Patch v6] dt-bindings: media: s5p-mfc: convert bindings to json-
> schema
>
> On 09/03/2023 09:48, Aakarsh Jain wrote:
> >>> won't fit here.
> >>> Since IOMMUs maxItems is 2 here for Exynos4. Giving maxItems:2 alone
> >> will also break the bindings. Thanks why suggested
> >>> iommus:
> >>> minItems: 1
> >>> maxItems: 2
> >>
> >> Are you sure you are putting this in correct place? This is if:then
> >> for Exynos3250, isn't it?
> >>
> > Its not only for Exynos3250, its along with Exynos4 since their clock
> > properties are same
> > allOf:
> > - if:
> > properties:
> > compatible:
> > contains:
> > enum:
> > - samsung,mfc-v5 #Exynos4
> > - samsung,exynos3250-mfc
> > then:
> > properties:
> > clocks:
> > maxItems: 2
> > clock-names:
> > items:
> > - const: mfc
> > - const: sclk_mfc
> > iommus:
> > minItems: 1
> > maxItems: 2
> >
> > or do I keep different if:then condition for both Exynos3250 and Exynos4
> for IOMMUs property ?
>
> Yes, they should be split into two if-then.
>
okay will keep it in this way.
- if:
properties:
compatible:
contains:
enum:
- samsung,mfc-v5
then:
properties:
clocks:
maxItems: 2
clock-names:
items:
- const: mfc
- const: sclk_mfc
iommus:
maxItems: 2
iommu-names:
items:
- const: left
- const: right

- if:
properties:
compatible:
contains:
enum:
- samsung,exynos3250-mfc
then:
properties:
clocks:
maxItems: 2
clock-names:
items:
- const: mfc
- const: sclk_mfc
iommus:
maxItems: 1
iommus-names: false

Also, "samsung,mfc-v7" compatible is used for both SOCs Exynos 5420 & Exynos 3250.
And for both SOCs, clock and IOMMUs properties are different. So in order to differentiate that, will keep it in this way.
- if:
properties:
compatible:
contains:
enum:
- samsung,mfc-v7
then:
properties:
clocks:
minItems: 1
maxItems: 2
iommus:
minItems: 1
maxItems: 2

I hope that will be fine?
>
> Best regards,
> Krzysztof


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