linux-kernel - RE: [EXT] Re: [PATCH v4 2/5] dt-bindings: arm: fsl: add imx-se-fw binding doc

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Message-ID:
 <AM9PR04MB86040DFD0C0EF5D904BF960D95DA2@AM9PR04MB8604.eurprd04.prod.outlook.com>
Date: Mon, 8 Jul 2024 11:19:29 +0000
From: Pankaj Gupta <pankaj.gupta@....com>
To: Krzysztof Kozlowski <krzk@...nel.org>, Jonathan Corbet <corbet@....net>,
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, Sascha
 Hauer <s.hauer@...gutronix.de>, Pengutronix Kernel Team
	<kernel@...gutronix.de>, Fabio Estevam <festevam@...il.com>, Rob Herring
	<robh+dt@...nel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
CC: "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"imx@...ts.linux.dev" <imx@...ts.linux.dev>,
	"linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>
Subject: RE: [EXT] Re: [PATCH v4 2/5] dt-bindings: arm: fsl: add imx-se-fw
 binding doc



> -----Original Message-----
> From: Krzysztof Kozlowski <krzk@...nel.org>
> Sent: Monday, July 8, 2024 11:46 AM
> To: Pankaj Gupta <pankaj.gupta@....com>; Jonathan Corbet
> <corbet@....net>; Rob Herring <robh@...nel.org>; Krzysztof Kozlowski
> <krzk+dt@...nel.org>; Conor Dooley <conor+dt@...nel.org>; Shawn Guo
> <shawnguo@...nel.org>; Sascha Hauer <s.hauer@...gutronix.de>;
> Pengutronix Kernel Team <kernel@...gutronix.de>; Fabio Estevam
> <festevam@...il.com>; Rob Herring <robh+dt@...nel.org>; Krzysztof
> Kozlowski <krzysztof.kozlowski+dt@...aro.org>
> Cc: linux-doc@...r.kernel.org; linux-kernel@...r.kernel.org;
> devicetree@...r.kernel.org; imx@...ts.linux.dev; linux-arm-
> kernel@...ts.infradead.org
> Subject: Re: [EXT] Re: [PATCH v4 2/5] dt-bindings: arm: fsl: add imx-se-fw
> binding doc
> 
> Caution: This is an external email. Please take care when clicking links or
> opening attachments. When in doubt, report the message using the 'Report
> this email' button
> 
> 
> On 08/07/2024 07:50, Pankaj Gupta wrote:
> >> Drop redundant/obvious parts.
> > Will replace above two description line with the below two.
> >       - description: mailbox phandle to send message to se firmware
> >       - description: mailbox phandle to receive message from se
> > firmware
> >
> >>
> >> So two mailboxes?
> > Two handles of the same mailbox.
> >
> >>
> >>> +
> >>> +  mbox-names:
> >>> +    items:
> >>> +      - const: tx
> >>> +      - const: rx
> >>> +      - const: txdb
> >>> +      - const: rxdb
> >>
> >> 4 mailboxes? This cannot be different.
> > mbox-names can have any of the above mentioned 4 values.
> > And  two values are minimum, required.
> 
> No, I said it cannot be different. If two are minimum, then you can have here
> 4, right? But earlier you said you can have only 2. It does not make any sense.

Understood.  Will fix this with following changes.

-      - const: tx
-      - const: rx
-      - const: txdb
-      - const: rxdb
-    minItems: 2
+      - enum:
+          - tx
+          - txdb
+      - enum:
+          - rx
+          - rxdb


> 
> >
> >>
> >>> +    minItems: 2
> >>> +
> >>> +  memory-region:
> >>> +    description: contains the phandle to reserved external memory.
> >>
> >> Drop
> > Will remove the line " description: contains the phandle to reserved external
> memory."
> >
> >>
> >>> +    items:
> >>> +      - description: It is used by secure-enclave firmware. It is an optional
> >>> +          property based on compatible and identifier to
> >>> + communication
> >> interface.
> >>> +          (see bindings/reserved-memory/reserved-memory.txt)
> >>> +
> >>> +  sram:
> >>> +    description: contains the phandle to sram.
> >>
> >> Drop
> > Will remove " description: contains the phandle to sram."
> >
> >>
> >>> +    items:
> >>> +      - description: Phandle to the device SRAM. It is an optional property
> >>> +          based on compatible and identifier to communication interface.
> >>> +
> >>> +required:
> >>> +  - compatible
> >>> +  - reg
> >>> +  - mboxes
> >>> +  - mbox-names
> >>> +
> >>> +additionalProperties: false
> >>
> >> Keep it after allOf block
> >
> > In V2, it is after allOf block.
> > In previous comments, it was commented to place allOf block, after
> required.
> > I am little confused.
> 
> So why did you implement it entirely different? Read the comment from Conor
> and from me again. I am sorry, but repeating the same three times (once by
> Conor, twice by me) is quite a waste of time.
> 
> Open example-schema. How is it done there?

Understood the point. Referred to the example-schema.
Will correct as per the example-schema.

> 
> Best regards,
> Krzysztof