From: Neal Liu <neal.liu@mediatek.com>
To: Rob Herring <robh@kernel.org>
Cc: "Mark Rutland" <mark.rutland@arm.com>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"Herbert Xu" <herbert@gondor.apana.org.au>,
wsd_upstream <wsd_upstream@mediatek.com>,
"Sean Wang" <sean.wang@kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Crystal Guo (郭晶)" <Crystal.Guo@mediatek.com>,
"linux-crypto@vger.kernel.org" <linux-crypto@vger.kernel.org>,
"Matt Mackall" <mpm@selenic.com>,
"Matthias Brugger" <matthias.bgg@gmail.com>,
"linux-mediatek@lists.infradead.org"
<linux-mediatek@lists.infradead.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v4 2/3] dt-bindings: rng: add bindings for MediaTek ARMv8 SoCs
Date: Tue, 23 Jul 2019 10:21:05 +0800 [thread overview]
Message-ID: <1563848465.31451.4.camel@mtkswgap22> (raw)
In-Reply-To: <20190722171320.GA9806@bogus>
Dear Rob,
You can check my driver for detail:
http://patchwork.kernel.org/patch/11012475/ or patchset 3/3
This driver is registered as hardware random number generator, and
combines with rng-core.
We want to add one rng hw based on the dts. Is this proper or do you
have other suggestion to meet this requirement?
Thanks
On Tue, 2019-07-23 at 01:13 +0800, Rob Herring wrote:
> On Mon, Jun 24, 2019 at 03:24:11PM +0800, Neal Liu wrote:
> > Document the binding used by the MediaTek ARMv8 SoCs random
> > number generator with TrustZone enabled.
> >
> > Signed-off-by: Neal Liu <neal.liu@mediatek.com>
> > ---
> > .../devicetree/bindings/rng/mtk-sec-rng.txt | 10 ++++++++++
> > 1 file changed, 10 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/rng/mtk-sec-rng.txt
> >
> > diff --git a/Documentation/devicetree/bindings/rng/mtk-sec-rng.txt b/Documentation/devicetree/bindings/rng/mtk-sec-rng.txt
> > new file mode 100644
> > index 0000000..c04ce15
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/rng/mtk-sec-rng.txt
> > @@ -0,0 +1,10 @@
> > +MediaTek random number generator with TrustZone enabled
> > +
> > +Required properties:
> > +- compatible : Should be "mediatek,mtk-sec-rng"
>
> What's the interface to access this?
>
> A node with a 'compatible' and nothing else is a sign of something that
> a parent device should instantiate and doesn't need to be in DT. IOW,
> what do complete bindings for firmware functions look like?
>
> > +
> > +Example:
> > +
> > +hwrng: hwrng {
> > + compatible = "mediatek,mtk-sec-rng";
> > +}
> > --
> > 1.7.9.5
> >
>
> _______________________________________________
> Linux-mediatek mailing list
> Linux-mediatek@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-mediatek
next prev parent reply other threads:[~2019-07-23 2:21 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-24 7:24 [PATCH v4 0/3] MediaTek Security random number generator support Neal Liu
2019-06-24 7:24 ` [PATCH v4 1/3] soc: mediatek: add SMC fid table for SIP interface Neal Liu
2019-06-24 7:24 ` [PATCH v4 2/3] dt-bindings: rng: add bindings for MediaTek ARMv8 SoCs Neal Liu
2019-07-22 17:13 ` Rob Herring
2019-07-23 2:21 ` Neal Liu [this message]
2019-07-23 14:35 ` Rob Herring
2019-07-24 5:04 ` Neal Liu
2019-09-18 1:44 ` Neal Liu
2019-10-02 13:47 ` Neal Liu
2019-10-18 5:41 ` Neal Liu
2019-06-24 7:24 ` [PATCH v4 3/3] hwrng: add mtk-sec-rng driver Neal Liu
2019-07-22 9:50 ` [PATCH v4 0/3] MediaTek Security random number generator support Neal Liu
2019-08-02 1:35 ` Neal Liu
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