linux-kernel - Re: [PATCH v4 03/19] dt-bindings: display: mediatek: add EXDMA yaml for MT8196

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Message-ID: <20250829-solemn-herring-of-conversion-ec5b1a@kuoka>
Date: Fri, 29 Aug 2025 08:35:23 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Paul Chen <paul-pl.chen@...iatek.com>
Cc: robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org, 
	chunkuang.hu@...nel.org, angelogioacchino.delregno@...labora.com, matthias.bgg@...il.com, 
	p.zabel@...gutronix.de, jason-jh.lin@...iatek.com, nancy.lin@...iatek.com, 
	singo.chang@...iatek.com, xiandong.wang@...iatek.com, sirius.wang@...iatek.com, 
	sunny.shen@...iatek.com, fshao@...omium.org, treapking@...omium.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
	linux-mediatek@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org, 
	Project_Global_Chrome_Upstream_Group@...iatek.com
Subject: Re: [PATCH v4 03/19] dt-bindings: display: mediatek: add EXDMA yaml
 for MT8196

On Thu, Aug 28, 2025 at 04:06:58PM +0800, Paul Chen wrote:
> From: Paul-pl Chen <paul-pl.chen@...iatek.com>
> 
> Add mediatek,exdma.yaml to support EXDMA for MT8196.
> The MediaTek display overlap extended DMA engine, namely
> OVL_EXDMA or EXDMA, primarily functions as a DMA engine
> for reading data from DRAM with various DRAM footprints
> and data formats.
> 
> Signed-off-by: Paul-pl Chen <paul-pl.chen@...iatek.com>
> ---
>  .../bindings/dma/mediatek,exdma.yaml          | 68 +++++++++++++++++++


Your changelog says NOTHING changed here and this fails tests, so does it
mean you received that warnings before but you keep sending same broken
code?

Last two weeks of contributions from mediatek are absolutely terrible.
Very poor code, basic in-house reviews not done, basic testing not done.

I talked about this at OSSE 25 with some friends and got reasons why
your setup is broken. Well, it's on you.

I was already raising this with Mediatek, but we are now back to square
one.

NAK, because this patch WAS NEVER tested.

Best regards,
Krzysztof