From: "Diederik de Haas" <didi.debian@cknow.org>
To: "Marcin Juszkiewicz" <marcin.juszkiewicz@linaro.org>,
"Dragan Simic" <dsimic@manjaro.org>,
"Peter Robinson" <pbrobinson@gmail.com>
Cc: "Rob Herring" <robh@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Heiko Stuebner" <heiko@sntech.de>, <devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-rockchip@lists.infradead.org>
Subject: Re: [PATCH] arm64: dts: rockchip: enable rng on all rk356x
Date: Mon, 02 Dec 2024 13:01:09 +0100 [thread overview]
Message-ID: <D6175VTSP13T.200HWIIHOIDQQ@cknow.org> (raw)
In-Reply-To: <b50376c7-c5d5-41ae-95ea-e2d68c1cc809@linaro.org>
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On Mon Dec 2, 2024 at 11:40 AM CET, Marcin Juszkiewicz wrote:
> W dniu 2.12.2024 o 04:55, Dragan Simic pisze:
> > On 2024-12-02 00:46, Peter Robinson wrote:
> >> The rk356x rng is available on both the rk3566 and rk3568
> >> parts, the IP is all self contained within the SoCs so
> >> it's enabled already by default on rk3568 so let's enable
> >> it in the base rk356x.dtsi so it's enabled consistently
> >> everywhere.
> >
> > Please, go through the mailing list threads [1][2] that have led us
> > to the current state. To sum it up, it isn't about what's supported
> > in the two RK356x SoC variants, but about the RK3566's HWRNG being
> > disabled because the testing showed that it produces unacceptably
> > low quality of random data, for some yet unknown reason.
>
> So maybe there should be a comment in rockchip/rk3568.dtsi so we would
> not get back to it again.
I suggested to put that in the (original) commit message:
https://lore.kernel.org/linux-rockchip/6690040.iosknibmi9@bagend/
precisely because this was quite predictable to happen.
So a +1 on a comment in the dtsi with a link to the discussion in the
commit message.
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next prev parent reply other threads:[~2024-12-02 12:02 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <a>
2024-12-01 23:46 ` [PATCH] arm64: dts: rockchip: enable rng on all rk356x Peter Robinson
2024-12-02 3:55 ` Dragan Simic
2024-12-02 10:40 ` Marcin Juszkiewicz
2024-12-02 12:01 ` Diederik de Haas [this message]
2024-12-02 14:50 ` Dragan Simic
2024-12-02 15:32 ` Heiko Stübner
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