linux-kernel - RE: [PATCH 2/7] dt-bindings: can: mcan: Add ECC functionality to message ram

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Message-ID: <005501d8f418$a2149540$e63dbfc0$@samsung.com>
Date:   Wed, 9 Nov 2022 14:22:36 +0530
From:   "Vivek Yadav" <vivek.2311@...sung.com>
To:     "'Marc Kleine-Budde'" <mkl@...gutronix.de>
Cc:     <rcsekar@...sung.com>, <wg@...ndegger.com>, <davem@...emloft.net>,
        <edumazet@...gle.com>, <kuba@...nel.org>, <pabeni@...hat.com>,
        <pankaj.dubey@...sung.com>, <ravi.patel@...sung.com>,
        <alim.akhtar@...sung.com>, <linux-can@...r.kernel.org>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 2/7] dt-bindings: can: mcan: Add ECC functionality to
 message ram



> -----Original Message-----
> From: Marc Kleine-Budde <mkl@...gutronix.de>
> Sent: 25 October 2022 13:02
> To: Vivek Yadav <vivek.2311@...sung.com>
> Cc: rcsekar@...sung.com; wg@...ndegger.com; davem@...emloft.net;
> edumazet@...gle.com; kuba@...nel.org; pabeni@...hat.com;
> pankaj.dubey@...sung.com; ravi.patel@...sung.com;
> alim.akhtar@...sung.com; linux-can@...r.kernel.org;
> netdev@...r.kernel.org; linux-kernel@...r.kernel.org
> Subject: Re: [PATCH 2/7] dt-bindings: can: mcan: Add ECC functionality to
> message ram
> 
> You should add the DT people on Cc:
> - devicetree@...r.kernel.org
> - Rob Herring <robh+dt@...nel.org>
> 
Okay, I will add them in the next patch series.
> On 21.10.2022 15:28:28, Vivek Yadav wrote:
> > Whenever the data is transferred or stored on message ram, there are
> > inherent risks of it being lost or corruption known as single-bit errors.
> >
> > ECC constantly scans data as it is processed to the message ram, using
> > a method known as parity checking and raise the error signals for
> corruption.
> >
> > Add error correction code config property to enable/disable the error
> > correction code (ECC) functionality for Message RAM used to create
> > valid ECC checksums.
> >
> > Signed-off-by: Chandrasekar R <rcsekar@...sung.com>
> > Signed-off-by: Vivek Yadav <vivek.2311@...sung.com>
> > ---
> >  Documentation/devicetree/bindings/net/can/bosch,m_can.yaml | 4 ++++
> >  1 file changed, 4 insertions(+)
> >
> > diff --git
> > a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml
> > b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml
> > index 26aa0830eea1..0ba3691863d7 100644
> > --- a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml
> > +++ b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml
> > @@ -50,6 +50,10 @@ properties:
> >        - const: hclk
> >        - const: cclk
> >
> > +  mram-ecc-cfg:
> 
> This probably needs a prefix and a "$ref:
> /schemas/types.yaml#/definitions/phandle".
> 
okay
I will add in the next patch series.
> > +    items:
> > +      - description: M_CAN ecc registers map with configuration
> > + register offset
> > +
> >    bosch,mram-cfg:
> >      description: |
> >        Message RAM configuration data.
> > --
> > 2.17.1
> >
> >
> 
> Marc
> 
Thanks for the review.
> --
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