linux-kernel - Re: [PATCH 0/3] riscv: dts: spacemit: Add DMA translation buses for K1

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Message-ID: <20250709064009-GYB487904@gentoo>
Date: Wed, 9 Jul 2025 06:40:09 +0000
From: Yixun Lan <dlan@...too.org>
To: Vivian Wang <wangruikang@...as.ac.cn>
Cc: Guodong Xu <guodong@...cstar.com>, Ze Huang <huangze@...t.edu.cn>,
	Alex Elder <elder@...cstar.com>, spacemit@...ts.linux.dev,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>, Alexandre Ghiti <alex@...ti.fr>,
	Vivian Wang <uwu@...m.page>, devicetree@...r.kernel.org,
	linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] riscv: dts: spacemit: Add DMA translation buses for
 K1


On 18:04 Mon 23 Jun     , Vivian Wang wrote:
> The SpacemiT K1 has various static translations of DMA accesses. This
> series adds all the DMA translation bus nodes and also moves existing
> nodes as necessary.
> 
> According to SpacemiT DT maintainer Yixun Lan [1], it's preferable from
> a SoC DT maintainer's perspective to have this done at once instead of
> spreading these changes into various driver series. Once this is merged,
> life will be easier for future users of the buses.
> 
> This series contains no bindings changes.
> 
> Patch 3 moves the eMMC node added in [1].
> 
> These patches can also be pulled from:
> 
> https://github.com/dramforever/linux/tree/k1/dma-ranges/v1
> 
> [1]: https://lore.kernel.org/r/20250623070147-GYA193822@gentoo
> [2]: https://lore.kernel.org/r/20250523-22-k1-sdhci-v1-1-6e0adddf7494@gentoo.org
> 

Hi Krzysztof,

  Just want to clarify, I believe you previous concern about the
"children of simple-bus are supposed to have unit addresses" [3] isn't
really an issue any more.. but, please let me know if I'm wrong..


Hi Vivian,

  We'd like to push this series for v6.17, so I've queued it at
k1/dt-for-next branch of SpacemiT SoC tree [4] for now, FYI.

Link: https://lore.kernel.org/all/2dc8ab35-4f58-49d3-8e8b-3e463fa592ae@kernel.org/ [3]
Link: https://github.com/spacemit-com/linux/tree/k1/dt-for-next [4]

Thanks all
-- 
Yixun Lan (dlan)