netdev - Re: [PATCH v4 2/4] can: m_can: Add hrtimer to generate software interrupt

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Date:   Tue, 2 May 2023 13:09:01 -0500
From:   Judith Mendez <jm@...com>
To:     Marc Kleine-Budde <mkl@...gutronix.de>
CC:     Chandrasekar Ramakrishnan <rcsekar@...sung.com>,
        Wolfgang Grandegger <wg@...ndegger.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, <linux-can@...r.kernel.org>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Schuyler Patton <spatton@...com>, Nishanth Menon <nm@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>,
        Oliver Hartkopp <socketcan@...tkopp.net>,
        Simon Horman <simon.horman@...igine.com>
Subject: Re: [PATCH v4 2/4] can: m_can: Add hrtimer to generate software
 interrupt

Hello Marc

On 5/2/23 01:37, Marc Kleine-Budde wrote:
> On 01.05.2023 17:46:22, Judith Mendez wrote:
>> Add an hrtimer to MCAN class device. Each MCAN will have its own
>> hrtimer instantiated if there is no hardware interrupt found and
>> poll-interval property is defined in device tree M_CAN node.
>>
>> The hrtimer will generate a software interrupt every 1 ms. In
>> hrtimer callback, we check if there is a transaction pending by
>> reading a register, then process by calling the isr if there is.
>>
>> Signed-off-by: Judith Mendez <jm@...com>
> 
> I think this patch is as good as it gets, given the HW and SW
> limitations of the coprocessor.
> 
> Some minor nitpicks inline. No need to resend from my point of view,
> I'll fixup while applying the patch.

Thanks Marc, really appreciate your feedback and attention.

Same to everyone who helped make these patches better. (:

regards,
Judith