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References: <20230607063139.621351-1-dario.binacchi@amarulasolutions.com> <20230607063139.621351-4-dario.binacchi@amarulasolutions.com>
In-Reply-To: <20230607063139.621351-4-dario.binacchi@amarulasolutions.com>
From:   Jagan Teki <jagan@amarulasolutions.com>
Date:   Wed, 7 Jun 2023 12:12:50 +0530
Message-ID: <CAMty3ZDCkQ_T+j96iXtMAhkOLFBm=hZHk=sZzSGA=MOQQUOv7g@mail.gmail.com>
Subject: Re: [RESEND PATCH v2 3/6] ARM: dts: stm32: support display on
 stm32f746-disco board
To:     Dario Binacchi <dario.binacchi@amarulasolutions.com>
Cc:     linux-kernel@vger.kernel.org,
        Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>,
        linux-arm-kernel@lists.infradead.org,
        dri-devel@lists.freedesktop.org,
        Philippe Cornu <philippe.cornu@foss.st.com>,
        Amarula patchwork <linux-amarula@amarulasolutions.com>,
        Maxime Coquelin <mcoquelin.stm32@gmail.com>,
        michael@amarulasolutions.com,
        linux-stm32@st-md-mailman.stormreply.com,
        Alexandre Torgue <alexandre.torgue@foss.st.com>,
        Conor Dooley <conor+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Rob Herring <robh+dt@kernel.org>, devicetree@vger.kernel.org
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On Wed, Jun 7, 2023 at 12:01=E2=80=AFPM Dario Binacchi
<dario.binacchi@amarulasolutions.com> wrote:
>
> Add support to Rocktech RK043FN48H display on stm32f746-disco board.
>
> Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
> ---
>
> (no changes since v1)
>
>  arch/arm/boot/dts/stm32f746-disco.dts | 51 +++++++++++++++++++++++++++
>  1 file changed, 51 insertions(+)
>
> diff --git a/arch/arm/boot/dts/stm32f746-disco.dts b/arch/arm/boot/dts/st=
m32f746-disco.dts
> index c11616ed5fc6..cda423b6a874 100644
> --- a/arch/arm/boot/dts/stm32f746-disco.dts
> +++ b/arch/arm/boot/dts/stm32f746-disco.dts
> @@ -60,10 +60,41 @@ memory@c0000000 {
>                 reg =3D <0xC0000000 0x800000>;
>         };
>
> +       reserved-memory {
> +               #address-cells =3D <1>;
> +               #size-cells =3D <1>;
> +               ranges;
> +
> +               linux,cma {
> +                       compatible =3D "shared-dma-pool";
> +                       no-map;
> +                       size =3D <0x80000>;
> +                       linux,dma-default;
> +               };
> +       };

This looks unrelated to display enablement, isn't it?

Jagan.