From: Sakari Ailus <sakari.ailus@linux.intel.com>
To: Wentong Wu <wentong.wu@intel.com>
Cc: hdegoede@redhat.com, djrscally@gmail.com,
laurent.pinchart@ideasonboard.com, linux-media@vger.kernel.org,
bingbu.cao@linux.intel.com, zhifeng.wang@intel.com,
xiang.ye@intel.com, tian.shu.qiu@intel.com
Subject: Re: [PATCH v3 3/3] ACPI: delay enumeration of devices with a _DEP pointing to INTC1059 device
Date: Mon, 27 Mar 2023 10:06:54 +0300 [thread overview]
Message-ID: <ZCFAjoaIG2VxtLJr@kekkonen.localdomain> (raw)
In-Reply-To: <1679898188-14426-4-git-send-email-wentong.wu@intel.com>
Hi Wentong,
On Mon, Mar 27, 2023 at 02:23:08PM +0800, Wentong Wu wrote:
> Inside IVSC, switching ownership requires an interface with two different
> hardware modules, ACE and CSI. The software interface to these modules is
> based on Intel MEI framework. Usually mei client devices are dynamically
> created, so the info of consumers depending on mei client devices is not
> present in the firmware tables.
Ouch.
>
> This causes problems with the probe ordering with respect to drivers for
> consumers of these mei client devices. But on these camera sensor devices,
> the ACPI nodes describing the sensors all have a _DEP dependency on the
> matching INTC1059 ACPI device, so adding INTC1059 to acpi_honor_dep_ids
> allows solving the probe-ordering problem by delaying the enumeration of
> ACPI-devices which have a _DEP dependency on an INTC1059 device.
What does the INTC1059 device represent?
--
Sakari Ailus
next prev parent reply other threads:[~2023-03-27 7:07 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-27 6:23 [PATCH v3 0/3] media: pci: intel: ivsc: Add driver of Intel Visual Sensing Controller(IVSC) Wentong Wu
2023-03-27 6:23 ` [PATCH v3 1/3] media: pci: intel: ivsc: Add CSI submodule Wentong Wu
2023-03-27 10:01 ` kernel test robot
2023-03-28 13:59 ` kernel test robot
2023-03-29 8:48 ` Sakari Ailus
2023-03-30 3:58 ` Wu, Wentong
2023-03-30 8:23 ` Sakari Ailus
2023-03-29 8:49 ` Sakari Ailus
2023-03-27 6:23 ` [PATCH v3 2/3] media: pci: intel: ivsc: Add ACE submodule Wentong Wu
2023-03-29 8:03 ` Sakari Ailus
2023-03-30 7:32 ` Wu, Wentong
2023-03-30 8:27 ` Sakari Ailus
2023-03-27 6:23 ` [PATCH v3 3/3] ACPI: delay enumeration of devices with a _DEP pointing to INTC1059 device Wentong Wu
2023-03-27 7:06 ` Sakari Ailus [this message]
2023-03-27 7:17 ` Wu, Wentong
2023-03-27 7:32 ` Sakari Ailus
2023-03-27 7:36 ` Wu, Wentong
2023-03-27 7:21 ` [PATCH v3 0/3] media: pci: intel: ivsc: Add driver of Intel Visual Sensing Controller(IVSC) Sakari Ailus
2023-03-27 7:33 ` Wu, Wentong
2023-03-27 7:49 ` Sakari Ailus
2023-03-27 8:13 ` Wu, Wentong
2023-03-27 9:36 ` Sakari Ailus
2023-03-28 7:32 ` Wu, Wentong
2023-03-28 19:48 ` Sakari Ailus
2023-03-29 0:42 ` Wu, Wentong
2023-03-29 7:39 ` Sakari Ailus
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