linux-kernel - Re: [PATCH v3 4/4] arm64: dts: rockchip: Add rkvdec2 Video Decoder on rk3588(s)

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Date: Fri, 21 Jun 2024 10:07:16 +0200
From: Jonas Karlman <jonas@...boo.se>
To: Detlev Casanova <detlev.casanova@...labora.com>
Cc: linux-kernel@...r.kernel.org, Ezequiel Garcia
 <ezequiel@...guardiasur.com.ar>, Mauro Carvalho Chehab
 <mchehab@...nel.org>, Rob Herring <robh@...nel.org>, Krzysztof Kozlowski
 <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, Heiko Stuebner
 <heiko@...ech.de>, "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
 Sebastian Reichel <sebastian.reichel@...labora.com>, Dragan Simic
 <dsimic@...jaro.org>, Diederik de Haas <didi.debian@...ow.org>, Andy Yan
 <andy.yan@...k-chips.com>, Boris Brezillon
 <boris.brezillon@...labora.com>, Hans Verkuil <hverkuil-cisco@...all.nl>,
 Daniel Almeida <daniel.almeida@...labora.com>, Paul Kocialkowski
 <paul.kocialkowski@...tlin.com>, Nicolas Dufresne
 <nicolas.dufresne@...labora.com>, Benjamin Gaignard
 <benjamin.gaignard@...labora.com>, Alex Bee <knaerzche@...il.com>,
 linux-media@...r.kernel.org, linux-rockchip@...ts.infradead.org,
 devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-staging@...ts.linux.dev
Subject: Re: [PATCH v3 4/4] arm64: dts: rockchip: Add rkvdec2 Video Decoder on
 rk3588(s)

Hi Datlev,

On 2024-06-20 16:19, Detlev Casanova wrote:
> Add the rkvdec2 Video Decoder to the RK3588s devicetree.
> 
> Signed-off-by: Detlev Casanova <detlev.casanova@...labora.com>
> ---
>  arch/arm64/boot/dts/rockchip/rk3588s.dtsi | 48 +++++++++++++++++++++++
>  1 file changed, 48 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/rockchip/rk3588s.dtsi b/arch/arm64/boot/dts/rockchip/rk3588s.dtsi
> index 6ac5ac8b48ab..9c44c99125b4 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3588s.dtsi
> +++ b/arch/arm64/boot/dts/rockchip/rk3588s.dtsi
> @@ -2596,6 +2596,16 @@ system_sram2: sram@...01000 {
>  		ranges = <0x0 0x0 0xff001000 0xef000>;
>  		#address-cells = <1>;
>  		#size-cells = <1>;
> +
> +		vdec0_sram: rkvdec-sram@0 {

The node name should reflect the purpose of the node, not sure rkvdec is
a good purpose, cache-sram/codec-sram/sram-section could be a better
node name.

node name pattern: ^([a-z0-9]*-)?sram(-section)?@[a-f0-9]+$

> +			reg = <0x0 0x78000>;
> +			pool;
> +		};
> +
> +		vdec1_sram: rkvdec-sram@1 {

The binding for sram mention:

  Following the generic-names recommended practice, node names should
  reflect the purpose of the node. Unit address (@<address>) should be
  appended to the name.

so the unit address should be @78000 and not @1. For name see above.

Regards,
Jonas

> +			reg = <0x78000 0x77000>;
> +			pool;
> +		};
>  	};
>  
>  	pinctrl: pinctrl {

[snip]