linux-kernel - Re: [PATCH 1/4] dt-bindings: firmware: secvio: Add device tree bindings

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Date: Thu, 9 May 2024 07:54:06 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Frank Li <Frank.li@....com>, Vabhav Sharma <vabhav.sharma@....com>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>,
 Franck LENORMAND <franck.lenormand@....com>,
 Dong Aisheng <aisheng.dong@....com>, Shawn Guo <shawnguo@...nel.org>,
 Sascha Hauer <s.hauer@...gutronix.de>,
 Pengutronix Kernel Team <kernel@...gutronix.de>,
 Fabio Estevam <festevam@...il.com>, Peng Fan <peng.fan@....com>,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
 Varun Sethi <V.Sethi@....com>, Silvano Di Ninno <silvano.dininno@....com>,
 Pankaj Gupta <pankaj.gupta@....com>, daniel.baluta@....com
Subject: Re: [PATCH 1/4] dt-bindings: firmware: secvio: Add device tree
 bindings

On 09/05/2024 05:06, Frank Li wrote:
> On Thu, May 09, 2024 at 02:45:32AM +0200, Vabhav Sharma wrote:
>> Document the secvio device tree bindings.
> 
> reduntant sentence. 
>>
>> The tampers are security feature available on i.MX products and
>> managed by SNVS block.The tamper goal is to detect the variation
>                         ^^ space here
> 
>> of hardware or physical parameters, which can indicate an attack.
>>
>> The SNVS, which provides secure non-volatile storage, allows to
>> detect some hardware attacks against the SoC.They are connected
>                                                ^^ space here 
>> to the security-violation ports, which send an alert when an
>> out-of-range value is detected.
>>
>> The "imx-secvio-sc" module is designed to report security violations
>> and tamper triggering via SCU firmware to the user.
>>
>> Add the imx-scu secvio sub node and secvio sub node description.
>>
>> Signed-off-by: Franck LENORMAND <franck.lenormand@....com>
>> Signed-off-by: Vabhav Sharma <vabhav.sharma@....com>
>> ---
>>  .../bindings/arm/freescale/fsl,scu-secvio.yaml     | 35 ++++++++++++++++++++++
>>  .../devicetree/bindings/firmware/fsl,scu.yaml      | 10 +++++++
>>  2 files changed, 45 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu-secvio.yaml b/Documentation/devicetree/bindings/arm/freescale/fsl,scu-secvio.yaml
>> new file mode 100644
>> index 000000000000..30dc1e21f903
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu-secvio.yaml
>> @@ -0,0 +1,35 @@
>> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/arm/freescale/fsl,scu-secvio.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: NXP i.MX Security Violation driver
> 
> Violation detect driver

Bindings are not for drivers.

Best regards,
Krzysztof