linux-kernel - Re: [PATCH v3 0/4] Raspberry Pi 4 HWRNG Support

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Date:   Thu, 21 Nov 2019 13:30:46 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     Stephen Brennan <stephen@...nnan.io>,
        Matt Mackall <mpm@...enic.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        bcm-kernel-feedback-list@...adcom.com,
        Eric Anholt <eric@...olt.net>,
        Stefan Wahren <wahrenst@....net>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-crypto@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-rpi-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 0/4] Raspberry Pi 4 HWRNG Support

On Wed, Nov 20, 2019 at 08:09:57PM -0800, Florian Fainelli wrote:
> Hi Herbert,
> 
> On 11/19/2019 7:16 PM, Stephen Brennan wrote:
> > This patch series enables support for the HWRNG included on the Raspberry
> > Pi 4.  It is simply a rebase of Stefan's branch [1]. I went ahead and
> > tested this out on a Pi 4.  Prior to this patch series, attempting to use
> > the hwrng gives:
> > 
> >     $ head -c 2 /dev/hwrng
> >     head: /dev/hwrng: Input/output error
> > 
> > After this series, the same command gives two random bytes.
> 
> When we get a review from Rob, you can take patches 1-2 through your
> tree and Stefan/Nicholas can queue patches 3-4 through the BCM2835 tree
> where the DTS files already exist. Does that work for you?

Yes sure.

Cheers,
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt