linux-kernel - Re: [PATCH] ARM: dts: imx7ulp: add crypto support

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Date:   Wed, 12 Jun 2019 11:45:18 +0000
From:   Horia Geanta <horia.geanta@....com>
To:     Shawn Guo <shawnguo@...nel.org>
CC:     Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Aymen Sghaier <aymen.sghaier@....com>,
        Iuliana Prodan <iuliana.prodan@....com>,
        Franck Lenormand <franck.lenormand@....com>,
        "linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        dl-linux-imx <linux-imx@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ARM: dts: imx7ulp: add crypto support

On 6/12/2019 1:40 PM, Shawn Guo wrote:
> On Thu, Jun 06, 2019 at 11:02:55AM +0300, Horia Geantă wrote:
>> From: Iuliana Prodan <iuliana.prodan@....com>
>>
>> Add crypto node in device tree for CAAM support.
>>
>> Noteworthy is that on 7ulp the interrupt line is shared
>> between the two job rings.
>>
>> Signed-off-by: Iuliana Prodan <iuliana.prodan@....com>
>> Signed-off-by: Franck LENORMAND <franck.lenormand@....com>
>> Signed-off-by: Horia Geantă <horia.geanta@....com>
>> ---
>>
>> I've just realized that this patch should be merged through the crypto tree,
>> else bisectability could be affected due to cryptodev-2.6
>> commit 385cfc84a5a8 ("crypto: caam - disable some clock checks for iMX7ULP")
>> ( https://patchwork.kernel.org/patch/10970017/ )
>> which should come first.
> 
> I'm not sure I follow it.  This is a new device added to imx7ulp DT.
> It's never worked before on imx7ulp.  How would it affect git bisect?
> 
Driver corresponding to this device (drivers/crypto/caam) has to be updated
before adding the node in DT.
Is there any guarantee wrt. merge order of the crypto and DT trees?

Thanks,
Horia