linux-kernel - Re: [PATCH v2 3/3] arm64: dts: rockchip: Add Hantro encoder node to rk356x

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Message-ID: <CAAEAJfC5aoFmk7hKZ-CSv1=RhzO8YU38Abz8PhD26MvV+X0r-Q@mail.gmail.com>
Date:   Mon, 9 May 2022 11:17:03 -0300
From:   Ezequiel Garcia <ezequiel@...guardiasur.com.ar>
To:     Nicolas Frattaroli <frattaroli.nicolas@...il.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Heiko Stuebner <heiko@...ech.de>,
        devicetree <devicetree@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        "open list:ARM/Rockchip SoC..." <linux-rockchip@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 3/3] arm64: dts: rockchip: Add Hantro encoder node to rk356x

Hi Nicolas,

On Sun, May 8, 2022 at 5:26 PM Nicolas Frattaroli
<frattaroli.nicolas@...il.com> wrote:
>
> The RK3566 and RK3568 come with a dedicated Hantro instance solely for
> encoding. This patch adds a node for this to the device tree, along with
> a node for its MMU.
>
> Signed-off-by: Nicolas Frattaroli <frattaroli.nicolas@...il.com>
> ---
>  arch/arm64/boot/dts/rockchip/rk356x.dtsi | 21 +++++++++++++++++++++
>  1 file changed, 21 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/rockchip/rk356x.dtsi b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
> index 7cdef800cb3c..2e3c9e1887e3 100644
> --- a/arch/arm64/boot/dts/rockchip/rk356x.dtsi
> +++ b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
> @@ -508,6 +508,27 @@ gpu: gpu@...60000 {
>                 status = "disabled";
>         };
>
> +       vepu: video-codec@...e0000 {
> +               compatible = "rockchip,rk3568-vepu";
> +               reg = <0x0 0xfdee0000 0x0 0x800>;
> +               interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
> +               interrupt-names = "vepu";

It this block "encoder only" and if so, maybe we should remove the
"interrupt-names" [1]?

The driver is able to handle it. See:

https://elixir.bootlin.com/linux/latest/source/drivers/staging/media/hantro/hantro_drv.c#L962

You might have to adjust the dt-bindings for this.

[1] https://lore.kernel.org/linux-media/20210324151715.GA3070006@robh.at.kernel.org/

Thanks,
Ezequiel

> +               clocks = <&cru ACLK_JENC>, <&cru HCLK_JENC>;
> +               clock-names = "aclk", "hclk";
> +               iommus = <&vepu_mmu>;
> +               power-domains = <&power RK3568_PD_RGA>;
> +       };
> +
> +       vepu_mmu: iommu@...e0800 {
> +               compatible = "rockchip,rk3568-iommu";
> +               reg = <0x0 0xfdee0800 0x0 0x40>;
> +               interrupts = <GIC_SPI 63 IRQ_TYPE_LEVEL_HIGH>;
> +               clocks = <&cru ACLK_JENC>, <&cru HCLK_JENC>;
> +               clock-names = "aclk", "iface";
> +               power-domains = <&power RK3568_PD_RGA>;
> +               #iommu-cells = <0>;
> +       };
> +
>         sdmmc2: mmc@...00000 {
>                 compatible = "rockchip,rk3568-dw-mshc", "rockchip,rk3288-dw-mshc";
>                 reg = <0x0 0xfe000000 0x0 0x4000>;
> --
> 2.36.0
>
>
> _______________________________________________
> Linux-rockchip mailing list
> Linux-rockchip@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-rockchip

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