linux-kernel - Re: [PATCH] arm64: dts: qcom: add Venus firmware node on Cheza

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Date:   Tue, 7 Jan 2020 09:42:14 -0800
From:   Rob Clark <robdclark@...il.com>
To:     Stanimir Varbanov <stanimir.varbanov@...aro.org>
Cc:     Alexandre Courbot <acourbot@...omium.org>,
        linux-media@...r.kernel.org,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] arm64: dts: qcom: add Venus firmware node on Cheza

On Tue, Jan 7, 2020 at 6:51 AM Stanimir Varbanov
<stanimir.varbanov@...aro.org> wrote:
>
> Hi Alex,
>
> On 1/7/20 4:34 PM, Alexandre Courbot wrote:
> > Cheza boards require this node to probe, so add it.
> >
> > Signed-off-by: Alexandre Courbot <acourbot@...omium.org>
> > ---
> >  arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi | 6 ++++++
> >  arch/arm64/boot/dts/qcom/sdm845.dtsi       | 2 +-
> >  2 files changed, 7 insertions(+), 1 deletion(-)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi b/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
> > index 9a4ff57fc877..35ba65cd9822 100644
> > --- a/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
> > @@ -1279,3 +1279,9 @@ config {
> >               };
> >       };
> >  };
> > +
> > +&venus_codec {
>
> We have similar patch for sc7180 and call it just "venus". Do you think
> we should shorten it here too?
>
> > +     video-firmware {
> > +             iommus = <&apps_smmu 0x10b2 0x0>;
> > +     };


btw Stan, not sure if you noticed, but Bjorn started adding
firmware-name properties so we can have different device specific
subdirectories for signed fw (ie. so one /lib/firmware can work on
multiple different devices).  I'm just looking at doing the same thing
for gpu zap fw.  Afaiu the venus fw is also signed, so I guess it
could benefit from the same treatment?  Not sure if that is something
you've already talked with Bjorn about?

BR,
-R

> > +};
> > diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> > index ddb1f23c936f..7b913688cc6d 100644
> > --- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> > @@ -2567,7 +2567,7 @@ usb_2_dwc3: dwc3@...0000 {
> >                       };
> >               };
> >
> > -             video-codec@...0000 {
> > +             venus_codec: video-codec@...0000 {
> >                       compatible = "qcom,sdm845-venus";
> >                       reg = <0 0x0aa00000 0 0xff000>;
> >                       interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;
> >
>
> --
> regards,
> Stan