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From: Darren Stevens <darren@stevens-zone.net>
To: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>
CC: LABBE Corentin <clabbe.montjoie@gmail.com>,
        Herbert Xu <herbert@gondor.apana.org.au>, linux-kernel@vger.kernel.org,
        linux-crypto@vger.kernel.org, mpm@selenic.com, olof@lixom.net,
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Date: Mon, 29 Aug 2016 18:52:15 +0100 (BST)
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Subject: Re: hwrng: pasemi_rng.c: Migrate to managed API
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Hello PrasannaKumar

On 25/08/2016, PrasannaKumar Muralidharan wrote:
>> I will propose to use devm_ioremap_resource() instead for removing this
>> hardcoded 0x100, but i cannot find any user of this driver in any dts.
>> (And so cannot check that this 0x100 is given in any DT resource node)
>
>> Is this normal ?
>
> I wanted to use devm_ioremap_resource but could not find DT entry
> required for this driver in any of the .dts files. So did not change
> that. I could not find any dts/dtsi for this platform. So I assume
> that the dtb is not present in the kernel, dtb is supplied by the
> bootloader. I may be wrong in this. Can anyone confirm this?

On mine (Amigaone X1000) that is correct, we boot linux with a vmlinux file,
and the bootloader (CFE) passes a fixed dtb. I think it is possible to dump
the tree from inside CFE, if it would help I can invetigate?

Regards
Darren