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From: Alexander Stein <alexander.stein@ew.tq-group.com>
To: linux-media@vger.kernel.org
Subject: v4l2-async: regression due to endpoint matching
Date: Thu, 27 Apr 2023 16:40:46 +0200	[thread overview]
Message-ID: <8360125.31r3eYUQgx@steina-w> (raw)

Hi all,

I have a setup on my TQMa6x (imx6q-mba6a.dts) with a tc358743 attached to the 
MIPI CSI input.
I noticed that since commit 1f391df44607 ("media: v4l2-async: Use endpoints in 
__v4l2_async_nf_add_fwnode_remote()") the async subdevice probing does not 
work anymore. If I revert that, it is working again, even on next-20230425.

$ cat /sys/kernel/debug/v4l2-async/pending_async_subdevices
imx-media:
ipu2_csi1:
ipu2_csi0:
 [fwnode] dev=21dc000.mipi, node=/soc/bus@2100000/mipi@21dc000/port@3/endpoint
ipu1_csi1:
 [fwnode] dev=21dc000.mipi, node=/soc/bus@2100000/mipi@21dc000/port@2/endpoint
ipu1_csi0:
imx6-mipi-csi2:
ipu2_csi1_mux:
ipu1_csi0_mux:
 [fwnode] dev=21dc000.mipi, node=/soc/bus@2100000/mipi@21dc000/port@1/endpoint


With revert:
$ cat /sys/kernel/debug/v4l2-async/pending_async_subdevices
imx-media:
ipu2_csi1:
ipu2_csi0:
ipu1_csi1:
ipu1_csi0:
imx6-mipi-csi2:
ipu2_csi1_mux:
ipu1_csi0_mux:

I also see these messages:
> video-mux 20e0000.iomuxc-gpr:ipu2_csi1_mux: Consider updating driver video-
mux to match on endpoints
> imx6-mipi-csi2 21dc000.mipi: Consider updating driver imx6-mipi-csi2 to 
match on endpoints
> tc358743 0-000f: Consider updating driver tc358743 to match on endpoints
> video-mux 20e0000.iomuxc-gpr:ipu1_csi0_mux: Consider updating driver video-
mux to match on endpoints

But I'm unsure if this is related. As far as I can see match_fwnode_one does 
match some nodes, but I do not know if they are the correct ones.
Anyone has an idea what's wrong here?

Best regards,
Alexander
-- 
TQ-Systems GmbH | Mühlstraße 2, Gut Delling | 82229 Seefeld, Germany
Amtsgericht München, HRB 105018
Geschäftsführer: Detlef Schneider, Rüdiger Stahl, Stefan Schneider
http://www.tq-group.com/



             reply	other threads:[~2023-04-27 14:40 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-27 14:40 Alexander Stein [this message]
2023-04-27 16:01 ` v4l2-async: regression due to endpoint matching Jacopo Mondi
2023-04-28  6:24   ` Alexander Stein
2023-04-28  6:31     ` Jacopo Mondi
2023-04-28  6:33       ` Alexander Stein
2023-04-28  6:43         ` Jacopo Mondi
2023-04-28  7:16           ` Sakari Ailus
2023-05-22 10:53             ` Linux regression tracking (Thorsten Leemhuis)
2023-05-22 11:59               ` Sakari Ailus
2023-05-22 12:11                 ` Linux regression tracking (Thorsten Leemhuis)
2023-05-22 12:51                   ` Sakari Ailus
2023-05-24 11:52                     ` Thorsten Leemhuis
2023-05-25  7:23                       ` Sakari Ailus
2023-04-28  6:52 ` Linux regression tracking #adding (Thorsten Leemhuis)
2023-06-26 11:41   ` Linux regression tracking #adding (Thorsten Leemhuis)

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