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From: Stefan Wahren <stefan.wahren@i2se.com>
To: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Cc: dave.stevenson@raspberrypi.com, devicetree@vger.kernel.org,
	kernel-list@raspberrypi.com, laurent.pinchart@ideasonboard.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
	linux-rpi-kernel@lists.infradead.org, lukasz@jany.st,
	mchehab@kernel.org, naush@raspberrypi.com, robh@kernel.org,
	tomi.valkeinen@ideasonboard.com,
	bcm-kernel-feedback-list@broadcom.com
Subject: Re: [PATCH v5 00/11] Add support for BCM2835 camera interface (unicam)
Date: Sat, 26 Feb 2022 18:18:14 +0100	[thread overview]
Message-ID: <6d5fe1fc-1126-9764-5f72-836369f7874c@i2se.com> (raw)
In-Reply-To: <fc3abf5b-64c7-82c6-ec9c-5c3659c55b49@ideasonboard.com>

Hi Jean-Michel,

Am 20.02.22 um 15:30 schrieb Jean-Michel Hautbois:
> Hi Stefan,
>
> On 16/02/2022 21:57, Stefan Wahren wrote:
>> Hi Jean-Michel,
>>
>> Am 08.02.22 um 16:50 schrieb Jean-Michel Hautbois:
>>> Hello !
>>>
>>> ...
>>>
>>> In order to properly configure the media pipeline, it is needed to call
>>> the usual ioctls, and configure routing in order to send the embedded
>>> data from the sensor to the "unicam-embedded" device node :
>>>
>>> ```
>>> media=0
>>> media-ctl -d${media} -l "'imx219 2-0010':0->'unicam-subdev':0 [1]"
>>> media-ctl -d${media} -l "'unicam-subdev':1->'unicam-image':0 [1]"
>>> media-ctl -d${media} -v -R "'unicam-subdev' [0/0->1/0[1],0/1->2/0[1]]"
>>> media-ctl -d${media} -V "'imx219 2-0010':0/0
>>> [fmt:SRGGB10_1X10/3280x2464 field:none]"
>>> v4l2-ctl -d0 --set-fmt-video
>>> width=3280,height=2464,pixelformat='pRAA',field=none
>>> media-ctl -d${media} -v -V "'imx219 2-0010':0/1
>>> [fmt:METADATA_8/16384x1 field:none]"
>>> media-ctl -d${media} -p
>>> ```
>>
>> i tried to test the unicam driver on a Raspberry Pi 4 with the imx219
>> camera (based on 5.17-rc4). The unicam & imx219 driver probes and
>> /dev/video0 is created.
>>
>> If a execute the first media-ctl command, it complains with invalid
>> argument 22. Is there a more fool-proof variant to configure this (a
>> script or something else)? I never used the unicam driver before.
>>
>> Here is the output of
>>
>> $ mediactl -d0 -p
>>
>
> Based on your output, I suppose the issue is the naming of the imx219
> media entity ('imx219 2-0010' vs 'imx219 5-0010').
> You could add a '-v' in the line to help you I suppose.
>
> A more bullet-proof version of the commands is certainly doable, not
> sure how though as I would not like to rewrite a libcamera-like
> command ;-).

Today i had a little bit time and manage to get the commands working.

After running the yavta command, the kernel put the following:

[  405.908674] cma: cma_alloc: linux,cma: alloc failed, req-size: 2484
pages, ret: -12
[  405.908695] unicam fe801000.csi: dma alloc of size 10174464 failed

As per default the CMA size with mainline DTB is 64 MB. After that i
increase the value to 256 MB and the issue disappeared. Maybe this is
something which could be integrated into the overlay. But at least a
note about this in the cover letter of the next version of this series
would be nice.

Best regards



      reply	other threads:[~2022-02-26 17:18 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-08 15:50 [PATCH v5 00/11] Add support for BCM2835 camera interface (unicam) Jean-Michel Hautbois
2022-02-08 15:50 ` [PATCH v5 01/11] media: v4l: Add V4L2-PIX-FMT-Y12P format Jean-Michel Hautbois
2022-02-08 15:50 ` [PATCH v5 02/11] media: v4l: Add V4L2-PIX-FMT-Y14P format Jean-Michel Hautbois
2022-02-08 15:50 ` [PATCH v5 03/11] dt-bindings: media: Add bindings for bcm2835-unicam Jean-Michel Hautbois
2022-02-09 18:56   ` Rob Herring
2022-02-13 15:48   ` Stefan Wahren
2022-02-14  9:39     ` Maxime Ripard
2022-02-14  9:54       ` Laurent Pinchart
2022-02-14 11:32         ` Stefan Wahren
2022-02-21  7:10           ` Laurent Pinchart
2022-02-21 10:03             ` Maxime Ripard
2022-02-21 12:45             ` Stefan Wahren
2022-02-21 12:52               ` Laurent Pinchart
2022-02-25  8:19   ` Sakari Ailus
2022-02-08 15:50 ` [PATCH v5 04/11] media: bcm2835-unicam: Add support for CCP2/CSI2 camera interface Jean-Michel Hautbois
2022-02-08 21:00   ` Stefan Wahren
2022-02-13 12:52     ` Laurent Pinchart
2022-02-13 11:17   ` Stefan Wahren
2022-02-13 12:49     ` Laurent Pinchart
2022-02-20 10:01   ` Stefan Wahren
2022-02-20 10:08     ` Laurent Pinchart
2022-02-21  9:55   ` Laurent Pinchart
2022-02-25  9:29   ` Sakari Ailus
2023-07-02 15:23     ` Laurent Pinchart
2023-07-02 18:18       ` Sakari Ailus
2023-07-02 21:45         ` Laurent Pinchart
2023-07-02 21:47           ` Laurent Pinchart
2023-07-02 21:56             ` Sakari Ailus
2023-07-02 22:01               ` Laurent Pinchart
2023-07-02 22:20                 ` Sakari Ailus
2023-07-02 22:28                   ` Laurent Pinchart
2023-07-02 22:33                     ` Sakari Ailus
2023-07-02 21:53           ` Sakari Ailus
2023-07-02 21:58             ` Laurent Pinchart
2022-02-08 15:50 ` [PATCH v5 05/11] media: MAINTAINERS: add bcm2835 unicam driver Jean-Michel Hautbois
2022-02-08 15:58   ` Laurent Pinchart
2022-02-08 15:50 ` [PATCH v5 06/11] ARM: dts: bcm2711: Add unicam CSI nodes Jean-Michel Hautbois
2022-02-13 10:35   ` Stefan Wahren
2022-02-13 13:51     ` Stefan Wahren
2022-02-08 15:50 ` [PATCH v5 07/11] media: imx219: Rename mbus codes array Jean-Michel Hautbois
2022-02-08 15:50 ` [PATCH v5 08/11] media: imx219: Switch from open to init_cfg Jean-Michel Hautbois
2022-02-08 16:02   ` Laurent Pinchart
2022-02-08 16:05     ` Laurent Pinchart
2022-02-08 15:50 ` [PATCH v5 09/11] media: imx219: Introduce the set_routing operation Jean-Michel Hautbois
2022-02-21  7:17   ` Laurent Pinchart
2022-02-08 15:50 ` [PATCH v5 10/11] media: imx219: use a local v4l2_subdev to simplify reading Jean-Michel Hautbois
2022-02-08 15:50 ` [PATCH v5 11/11] media: imx219: Add support for the V4L2 subdev active state Jean-Michel Hautbois
2022-02-21  7:25   ` Laurent Pinchart
2022-02-16 20:57 ` [PATCH v5 00/11] Add support for BCM2835 camera interface (unicam) Stefan Wahren
2022-02-20 14:30   ` Jean-Michel Hautbois
2022-02-26 17:18     ` Stefan Wahren [this message]

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