From: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
To: Sakari Ailus <sakari.ailus@linux.intel.com>
Cc: linux-acpi@vger.kernel.org, mika.westerberg@linux.intel.com,
rafael@kernel.org, mark.rutland@arm.com, broonie@kernel.org,
robh@kernel.org, ahs3@redhat.com
Subject: Re: [RFC 00/15] ACPI graph support
Date: Wed, 5 Oct 2016 10:22:15 +0100 [thread overview]
Message-ID: <20161005092215.GA20248@red-moon> (raw)
In-Reply-To: <1475621148-21427-1-git-send-email-sakari.ailus@linux.intel.com>
[ +MarkR, MarkB, Rob, Al - I suspect they may want to have a say]
On Wed, Oct 05, 2016 at 01:45:33AM +0300, Sakari Ailus wrote:
> Hello everyone,
>
> I've been working awhile with my collegue Mika Westerberg to bring
> firmware graph support to ACPI based systems. In practice the
> functionality achieved by these patches is very similar to what the Device
> tree provides: the port and the endpoint concept are being employed. The
> patches make use of the _DSD property and data extensions to achieve this.
> The fwnode interface is extended by graph functionality; this way graph
> information originating from both OF and ACPI may be accessed using the
> same interface.
There is an ongoing effort to avoid wholesale import of DT bindings
into ACPI, I am not a V4L2 expert but it seems to me that with patches
like the one you have submitted we are getting closer and closer to
achieving it instead of avoiding it.
For your information, Al is working on a process to submit _DSD
bindings and this patchset should at least be vetted within that
context.
It is an RFC and my comment is that I do not like the direction
this ACPI->_DSD->DT is taking, I would like to understand where
this is intended to stop because I am getting worried.
Thanks,
Lorenzo
> The last patch of the set contains ASL documentation including and
> example.
>
> The entire set may also be found here:
>
> <URL:https://git.linuxtv.org/sailus/media_tree.git/log/?h=acpi-graph>
>
> The resulting fwnode graph interface has been tested using V4L2 async with
> fwnode matching and smiapp and omap3isp drivers, with appropriate changes
> to make use of the fwnode interface.
>
> The V4L2 patches can be found here --- I'll send them to the linux-media
> list in the near future:
>
> <URL:https://git.linuxtv.org/sailus/media_tree.git/log/?h=v4l2-acpi>
>
> Both sets can be found here, applied on the same tree (the V4L2 patches
> depend on other patches not in Linus's tree yet):
>
> <URL:https://git.linuxtv.org/sailus/media_tree.git/log/?h=v4l2-acpi-on-graph>
>
> Feedback would be very welcome.
>
> --
> Kind regards,
> Sakari
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
next prev parent reply other threads:[~2016-10-05 9:21 UTC|newest]
Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-04 22:45 [RFC 00/15] ACPI graph support Sakari Ailus
2016-10-04 22:45 ` [RFC 01/15] ACPI / property: Add possiblity to retrieve parent firmware node Sakari Ailus
2016-10-04 22:45 ` [RFC 02/15] device property: Add fwnode_get_parent() Sakari Ailus
2016-10-04 22:45 ` [RFC 03/15] ACPI / property: Add fwnode_get_next_child_node() Sakari Ailus
2016-10-04 22:45 ` [RFC 04/15] device property: Add fwnode_get_named_child_node() Sakari Ailus
2016-10-04 22:45 ` [RFC 05/15] ACPI / property: Add support for remote endpoints Sakari Ailus
2016-10-04 22:45 ` [RFC 06/15] device " Sakari Ailus
2016-10-04 22:45 ` [RFC 07/15] device property: Add fwnode_handle_get() Sakari Ailus
2016-10-04 22:45 ` [RFC 08/15] of: Add of_fwnode_handle() to convert device nodes to fwnode_handle Sakari Ailus
2016-10-04 22:45 ` [RFC 09/15] driver core: Arrange headers alphabetically Sakari Ailus
2016-10-04 22:45 ` [RFC 10/15] of: No need to include property.h, fwnode.h is sufficient Sakari Ailus
2016-10-04 22:45 ` [RFC 11/15] device property: Obtain device's fwnode independently of FW type Sakari Ailus
2016-10-04 22:45 ` [RFC 12/15] device property: Add support for fwnode endpoints Sakari Ailus
2016-10-04 22:45 ` [RFC 13/15] of: Add nop implementation of of_get_next_parent() Sakari Ailus
2016-10-04 22:45 ` [RFC 14/15] device property: Add fwnode_get_next_parent() Sakari Ailus
2016-10-04 22:45 ` [RFC 15/15] ACPI / DSD: Document references, ports and endpoints Sakari Ailus
2016-10-05 9:22 ` Lorenzo Pieralisi [this message]
2016-10-05 11:41 ` [RFC 00/15] ACPI graph support Mika Westerberg
2016-10-05 15:06 ` Lorenzo Pieralisi
2016-10-05 15:32 ` Mika Westerberg
2016-10-05 16:18 ` Lorenzo Pieralisi
2016-10-05 20:33 ` Rafael J. Wysocki
2016-10-06 8:57 ` Lorenzo Pieralisi
2016-10-06 9:11 ` Mika Westerberg
2016-10-06 9:57 ` Lorenzo Pieralisi
2016-10-06 11:19 ` Mika Westerberg
2016-10-06 15:31 ` Mark Brown
2016-10-06 16:00 ` Rafael J. Wysocki
2016-10-06 16:14 ` Mark Brown
2016-10-06 17:02 ` Rafael J. Wysocki
2016-10-11 12:44 ` Mark Rutland
2016-10-12 0:19 ` Rafael J. Wysocki
2016-10-06 12:30 ` Rafael J. Wysocki
2016-10-06 10:40 ` Mark Brown
2016-10-06 12:26 ` Mika Westerberg
2016-10-06 13:15 ` Rafael J. Wysocki
2016-10-06 15:23 ` Mark Brown
2016-10-06 15:56 ` Rafael J. Wysocki
2016-10-06 15:57 ` Sudeep Holla
2016-10-06 12:26 ` Rafael J. Wysocki
2016-10-06 21:37 ` Mark Brown
2016-10-10 23:44 ` Rafael J. Wysocki
2016-10-11 12:11 ` Rafael J. Wysocki
2016-10-11 13:05 ` Mark Brown
2016-10-11 12:44 ` Mark Brown
2016-10-11 13:32 ` Mark Rutland
2016-10-12 0:32 ` Rafael J. Wysocki
2016-10-12 12:05 ` Mark Brown
2016-10-12 12:26 ` Rafael J. Wysocki
2016-10-11 13:01 ` Mark Rutland
2016-10-11 13:26 ` Mark Brown
2016-10-11 12:56 ` Mark Rutland
2016-10-06 22:02 ` Sakari Ailus
2016-10-11 12:35 ` Mark Rutland
2016-10-12 9:00 ` Mika Westerberg
2016-10-12 10:28 ` Mark Brown
2016-10-12 11:12 ` Mika Westerberg
2016-10-12 11:25 ` Rafael J. Wysocki
2016-10-12 16:00 ` Mark Brown
2016-10-12 11:14 ` Rafael J. Wysocki
2016-10-12 12:32 ` Mark Brown
2016-10-12 12:42 ` Rafael J. Wysocki
2016-10-12 14:59 ` Mark Brown
2016-10-12 17:50 ` Rafael J. Wysocki
2016-10-06 21:58 ` Sakari Ailus
2016-10-05 15:21 ` Mark Brown
2016-10-05 15:30 ` Sudeep Holla
2016-10-05 18:14 ` Mika Westerberg
2016-10-05 20:18 ` Rafael J. Wysocki
2016-10-06 10:29 ` Sudeep Holla
2016-10-06 13:04 ` Rafael J. Wysocki
2016-10-06 14:20 ` Sudeep Holla
2016-10-06 17:05 ` Rafael J. Wysocki
2016-10-06 17:20 ` Sudeep Holla
2016-10-11 0:05 ` Rafael J. Wysocki
2016-10-11 8:57 ` Sudeep Holla
2016-10-11 11:59 ` Rafael J. Wysocki
2016-10-11 13:15 ` Mark Brown
2016-10-12 0:35 ` Rafael J. Wysocki
2016-10-06 17:20 ` Al Stone
2016-10-06 20:14 ` Mark Brown
2016-10-06 20:54 ` Al Stone
2016-10-11 12:28 ` Mark Rutland
2016-10-12 1:18 ` Rafael J. Wysocki
2016-10-06 21:10 ` Sakari Ailus
2016-10-11 13:30 ` Mark Rutland
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