linux-kernel - Re: [PATCH v1 1/2] arm64: dts: ti: k3-am62: Add MCU MCAN nodes

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Message-ID: <ZL6lVGklNclkVu58@francesco-nb.int.toradex.com>
Date:   Mon, 24 Jul 2023 18:22:44 +0200
From:   Francesco Dolcini <francesco@...cini.it>
To:     Judith Mendez <jm@...com>
Cc:     Francesco Dolcini <francesco@...cini.it>,
        Nishanth Menon <nm@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Francesco Dolcini <francesco.dolcini@...adex.com>
Subject: Re: [PATCH v1 1/2] arm64: dts: ti: k3-am62: Add MCU MCAN nodes

Hello Judith,

On Mon, Jul 24, 2023 at 11:06:24AM -0500, Judith Mendez wrote:
> On 7/24/23 8:36 AM, Francesco Dolcini wrote:
> > From: Judith Mendez <jm@...com>
> > 
> > On AM62x there are no hardware interrupts routed to A53 GIC
> > interrupt controller for MCU MCAN IPs, so MCU MCAN nodes were
> > omitted from MCU dtsi.
> > 
> > Timer polling was introduced in commits [1][2] so now add MCU MCAN nodes
> > to the MCU dtsi for the Cortex A53.
> > 
> > [1] b382380c0d2d ("can: m_can: Add hrtimer to generate software interrupt")
> > [2] bb410c03b999 ("dt-bindings: net: can: Remove interrupt properties for MCAN")
> > 
> > Signed-off-by: Judith Mendez <jm@...com>
> > [fd: fixed labels to match datasheet numbering, revised commit message,
> >       fixed reg/reg-names order]
> > Signed-off-by: Francesco Dolcini <francesco.dolcini@...adex.com>
> > ---

...

> Thanks for sending this patch, will also send for AM62ax.

Please have a look at the couple of changes I did:
 - corrected the label to be coherent with the datasheet and the other
   peripheral names
 - inverted "m_can" and "message_ram" regs/regs-names to fix a binding
   checker error.

These might be relevant also for the AM62a.

Francesco