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Message-ID: <20240603-d622cdac0016f1f854bf2b4c@orel>
Date: Mon, 3 Jun 2024 14:59:18 +0200
From: Andrew Jones <ajones@...tanamicro.com>
To: Tomasz Jeznach <tjeznach@...osinc.com>
Cc: Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>, 
	Robin Murphy <robin.murphy@....com>, Paul Walmsley <paul.walmsley@...ive.com>, 
	Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
	Anup Patel <apatel@...tanamicro.com>, Sunil V L <sunilvl@...tanamicro.com>, 
	Nick Kossifidis <mick@....forth.gr>, Sebastien Boeuf <seb@...osinc.com>, 
	Rob Herring <robh+dt@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Conor Dooley <conor+dt@...nel.org>, devicetree@...r.kernel.org, iommu@...ts.linux.dev, 
	linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org, linux@...osinc.com, 
	Lu Baolu <baolu.lu@...ux.intel.com>
Subject: Re: [PATCH v6 2/7] iommu/riscv: Add RISC-V IOMMU platform device
 driver

On Fri, May 24, 2024 at 12:34:42PM GMT, Tomasz Jeznach wrote:
...
> +static struct platform_driver riscv_iommu_platform_driver = {
> +	.probe = riscv_iommu_platform_probe,
> +	.remove_new = riscv_iommu_platform_remove,

Hi Tomasz,

I think we should also support .shutdown (just turn the IOMMU off?),
otherwise the IOMMU driver reports EBUSY and fails to initialize when
rebooting.

Same comment for the PCI driver.

Thanks,
drew

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