linux-kernel - Re: [PATCH v8 04/14] media: platform: Change the fixed device node number to unfixed value

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Message-ID: <1591336937.31802.2.camel@mhfsdcap03>
Date:   Fri, 5 Jun 2020 14:02:17 +0800
From:   Xia Jiang <xia.jiang@...iatek.com>
To:     Tomasz Figa <tfiga@...omium.org>
CC:     Hans Verkuil <hverkuil-cisco@...all.nl>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        "Matthias Brugger" <matthias.bgg@...il.com>,
        Rick Chang <rick.chang@...iatek.com>,
        <linux-media@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        <srv_heupstream@...iatek.com>, <senozhatsky@...omium.org>,
        <mojahsu@...omium.org>, <drinkcat@...omium.org>,
        <maoguang.meng@...iatek.com>, <sj.huang@...iatek.com>
Subject: Re: [PATCH v8 04/14] media: platform: Change the fixed device node
 number to unfixed value

On Thu, 2020-05-21 at 13:59 +0000, Tomasz Figa wrote:
> Hi Xia,
> 
> On Fri, Apr 03, 2020 at 05:40:23PM +0800, Xia Jiang wrote:
> > Change device node number from 3 to -1 because that the driver will
> > also support jpeg encoder.
> > 
> 
> Thanks for the patch. The change is correct, but I think the commit
> message doesn't really explain the real reason for it. Perhaps something
> like
> 
> "The driver can be instantiated multiple times, e.g. for a decoder and
> an encoder. Moreover, other drivers could coexist on the same system.
> This makes the static video node number assignment pointless, so switch
> to automatic assignment instead."
> 
> WDYT?
Dear Tomasz,
Thanks for your advice.I have changed it in new v9 .

Best Regards,
Xia Jiang
> 
> Best regards,
> Tomasz