linux-kernel - Re: [PATCH 0/2] Introduce PCI_FIXUP

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Date:   Wed, 27 May 2020 11:00:07 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Zhangfei Gao <zhangfei.gao@...aro.org>
Cc:     Joerg Roedel <joro@...tes.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Arnd Bergmann <arnd@...db.de>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Hanjun Guo <guohanjun@...wei.com>,
        Sudeep Holla <sudeep.holla@....com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>,
        jean-philippe <jean-philippe@...aro.org>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        kenneth-lee-2012@...mail.com, Wangzhou <wangzhou1@...ilicon.com>,
        linux-kernel@...r.kernel.org, linux-crypto@...r.kernel.org,
        iommu@...ts.linux-foundation.org, linux-acpi@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-pci@...r.kernel.org
Subject: Re: [PATCH 0/2] Introduce PCI_FIXUP_IOMMU

On Tue, May 26, 2020 at 07:49:07PM +0800, Zhangfei Gao wrote:
> Some platform devices appear as PCI but are actually on the AMBA bus,

Why would these devices not just show up on the AMBA bus and use all of
that logic instead of being a PCI device and having to go through odd
fixes like this?

thanks,

greg k-h