linux-kernel - Re: [PATCH 1/2] arm64: dts: exynos: gs101: ufs: add dma-coherent property

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Message-ID: <CADrjBPqdr1NEd+W4ATJ-6Xi36y8Gi_=81LsFNtY_s2-pBPagFA@mail.gmail.com>
Date: Fri, 27 Jun 2025 17:28:05 +0100
From: Peter Griffin <peter.griffin@...aro.org>
To: André Draszik <andre.draszik@...aro.org>, 
	Tudor Ambarus <tudor.ambarus@...aro.org>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Alim Akhtar <alim.akhtar@...sung.com>, Avri Altman <avri.altman@....com>, 
	Bart Van Assche <bvanassche@....org>, "Martin K. Petersen" <martin.petersen@...cle.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>, linux-arm-kernel@...ts.infradead.org, 
	linux-samsung-soc@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org, 
	kernel-team@...roid.com, willmcvicker@...gle.com, stable@...r.kernel.org
Subject: Re: [PATCH 1/2] arm64: dts: exynos: gs101: ufs: add dma-coherent property

Hi Krzysztof,

On Fri, 14 Mar 2025 at 15:38, Peter Griffin <peter.griffin@...aro.org> wrote:
>
> ufs-exynos driver configures the sysreg shareability as
> cacheable for gs101 so we need to set the dma-coherent
> property so the descriptors are also allocated cacheable.
>
> This fixes the UFS stability issues we have seen with
> the upstream UFS driver on gs101.
>
> Fixes: 4c65d7054b4c ("arm64: dts: exynos: gs101: Add ufs and ufs-phy dt nodes")
> Cc: stable@...r.kernel.org
> Suggested-by: Will McVicker <willmcvicker@...gle.com>
> Signed-off-by: Peter Griffin <peter.griffin@...aro.org>
> ---

Friendly ping about this patch :)

Peter