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

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Date:   Tue, 3 Dec 2019 20:55:04 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Herbert Xu <herbert@...dor.apana.org.au>,
        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 11/20/2019 9:30 PM, Herbert Xu wrote:
> 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.

Rob has provided his Acked-by for the binding patch, are you targeting
these changes for 5.5 or 5.6 at this point?
-- 
Florian