linux-kernel - Re: [PATCH v1 2/2] ARM: dts: imx6q-apalis: add can power-up delay on ixora board

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Message-ID: <ZWRrznJiUyXlzzW1@francesco-nb.int.toradex.com>
Date:   Mon, 27 Nov 2023 11:13:34 +0100
From:   Francesco Dolcini <francesco@...cini.it>
To:     Shawn Guo <shawnguo@...nel.org>
Cc:     Andrejs Cainikovs <andrejs.cainikovs@...il.com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Andrejs Cainikovs <andrejs.cainikovs@...adex.com>,
        stable@...r.kernel.org
Subject: Re: [PATCH v1 2/2] ARM: dts: imx6q-apalis: add can power-up delay on
 ixora board

On Mon, Nov 27, 2023 at 10:52:18AM +0800, Shawn Guo wrote:
> On Fri, Oct 20, 2023 at 05:30:22PM +0200, Andrejs Cainikovs wrote:
> > From: Andrejs Cainikovs <andrejs.cainikovs@...adex.com>
> > 
> > Newer variants of Ixora boards require a power-up delay when powering up
> > the CAN transceiver of up to 1ms.
> > 
> > Cc: stable@...r.kernel.org
> 
> Why is only the iMX6 change required for stable?

>From what I know currently apalis-imx8 is not yet used in products
with a mainline kernel therefore the assumption that the backporting
would add very small value, however maybe is better to just backport
both to stable.

Francesco