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From: Alexander Graf <agraf@suse.de>
To: Alex Williamson <alex.williamson@redhat.com>,
	Kim Phillips <kim.phillips@linaro.org>
Cc: a.motakis@virtualopensystems.com, kvmarm@lists.cs.columbia.edu,
	iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
	kvm@vger.kernel.org, linux-doc@vger.kernel.org,
	gregkh@linuxfoundation.org, jhovold@gmail.com,
	will.deacon@arm.com, a.rigo@virtualopensystems.com,
	rob.herring@calxeda.com, stuart.yoder@freescale.com,
	rob@landley.net, grant.likely@linaro.org,
	tech@virtualopensystems.com, clbchenlibo.chen@huawei.com,
	christoffer.dall@linaro.org, eric.auger@linaro.org,
	Julien Grall <julien.grall@linaro.org>,
	Ian Campbell <ian.campbell@citrix.com>,
	Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Subject: Re: [RFC PATCH v5_v2 01/11] driver core: platform: add device binding path 'driver_override'
Date: Thu, 29 May 2014 23:24:11 +0200	[thread overview]
Message-ID: <5387A57B.6050204@suse.de> (raw)
In-Reply-To: <1401392619.2412.102.camel@ul30vt.home>


On 29.05.14 21:43, Alex Williamson wrote:
> On Tue, 2014-05-20 at 19:25 -0500, Kim Phillips wrote:
>> From: Kim Phillips <kim.phillips@freescale.com>
>>
>> Needed by platform device drivers, such as the vfio-platform driver
>> later in series, in order to bypass the existing OF, ACPI, id_table and
>> name string matches, and successfully be able to be bound to any
>> device, like so:
>>
>> echo vfio-platform > /sys/bus/platform/devices/fff51000.ethernet/driver_override
>> echo fff51000.ethernet > /sys/bus/platform/devices/fff51000.ethernet/driver/unbind
>> echo fff51000.ethernet > /sys/bus/platform/drivers_probe
>>
>> This mimics "PCI: Introduce new device binding path using
>> pci_dev.driver_override" [1], which is an interface enhancement
>> for more deterministic PCI device binding, e.g., when in the
>> presence of hotplug.
>>
>> [1] https://lists.cs.columbia.edu/pipermail/kvmarm/2014-May/009527.html
>>
>> Suggested-by: Alex Williamson <alex.williamson@redhat.com>
>> Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
> Looks largely identical to the PCI version of the same that has been
> accepted for v3.16 and ack'd by GregKH.
>
> Reviewed-by: Alex Williamson <alex.williamson@redhat.com>

Yup, would be great to have feature parity for device binding on 
platform and PCI.

Reviewed-by: Alexander Graf <agraf@suse.de>


Alex


  reply	other threads:[~2014-05-29 21:24 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1398700371-20096-1-git-send-email-a.motakis@virtualopensystems.com>
2014-04-28 15:52 ` [RFC PATCH v5 01/11] driver core: platform: add device binding path 'driver_override' Antonios Motakis
2014-05-21  0:25   ` [RFC PATCH v5_v2 " Kim Phillips
2014-05-29 19:43     ` Alex Williamson
2014-05-29 21:24       ` Alexander Graf [this message]
2014-06-03  0:42   ` [PATCH] " Kim Phillips
2014-06-03  4:28     ` Greg KH
2014-06-26  1:08       ` Kim Phillips
2014-07-07 21:19       ` Kim Phillips
2014-07-08 22:37     ` Greg KH
2014-04-28 15:52 ` [RFC PATCH v5 02/11] ARM SMMU: Add capability IOMMU_CAP_DMA_EXEC Antonios Motakis
2014-04-28 19:37   ` Will Deacon
2014-04-28 20:20     ` Alex Williamson
2014-04-29  9:52     ` Antonios Motakis
2014-04-28 15:52 ` [RFC PATCH v5 03/11] VFIO_IOMMU_TYPE1 for platform bus devices on ARM Antonios Motakis
2014-04-28 16:43   ` Alex Williamson
2014-04-28 19:19     ` Will Deacon
2014-04-28 20:08       ` Alex Williamson
2014-04-30 13:08         ` Will Deacon
2014-04-28 15:52 ` [RFC PATCH v5 04/11] VFIO_IOMMU_TYPE1: Introduce the VFIO_DMA_MAP_FLAG_EXEC flag Antonios Motakis
     [not found]   ` <1398704036.24318.269.camel@ul30vt.home>
2014-04-29 13:16     ` Antonios Motakis
2014-04-28 15:52 ` [RFC PATCH v5 05/11] VFIO_PLATFORM: Initial skeleton of VFIO support for platform devices Antonios Motakis
     [not found]   ` <1398704642.24318.273.camel@ul30vt.home>
2014-04-29 13:23     ` Antonios Motakis
2014-04-28 15:52 ` [RFC PATCH v5 06/11] VFIO_PLATFORM: Return info for device and its memory mapped IO regions Antonios Motakis
2014-04-28 17:16   ` Alex Williamson
2014-04-28 15:52 ` [RFC PATCH v5 07/11] VFIO_PLATFORM: Read and write support for the device fd Antonios Motakis
2014-04-28 17:24   ` Alex Williamson
2014-04-29 13:27     ` Antonios Motakis
2014-04-28 15:52 ` [RFC PATCH v5 08/11] VFIO_PLATFORM: Support MMAP of MMIO regions Antonios Motakis
2014-04-28 17:27   ` Alex Williamson
2014-04-29 13:28     ` Antonios Motakis
2014-04-28 15:52 ` [RFC PATCH v5 09/11] VFIO_PLATFORM: Return IRQ info Antonios Motakis
2014-04-28 17:33   ` Alex Williamson
2014-04-28 15:52 ` [RFC PATCH v5 10/11] VFIO_PLATFORM: Initial interrupts support Antonios Motakis
2014-04-28 15:52 ` [RFC PATCH v5 11/11] VFIO_PLATFORM: Support for maskable and automasked interrupts Antonios Motakis
2014-04-28 17:46   ` Alex Williamson
2014-05-02 17:25     ` Antonios Motakis

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