linux Camera device is not detecting with 5.15.65 rpi kernel.

Describe the bug

Upgraded rpi kernel version from rpi-5.4.y to rpi-5.15.y.

Camera device (/dev/video0) device is not detecting with rpi-5.15.y version.

Linux version : 5.15.65 revision : 08a29ba5fb33886d3d1095d66110bdd38f6820a2

Steps to reproduce the behaviour

Install 5.15.65 kernel on RPI 3B+ and notice video0 device detection.

Device (s)

Raspberry Pi 3 Mod. B+

System

root@raspberrypi3-rdk-camera:/usr/local/rms/bin# uname -a Linux raspberrypi3-rdk-camera 5.15.65-v7 #1 SMP Fri Sep 23 10:49:53 UTC 2022 armv7l GNU/Linux

Logs

root@raspberrypi3-rdk-camera:/usr/local/rms/bin# uname -r 5.15.65-v7

root@raspberrypi3-rdk-camera:/usr/local/rms/bin# ls /dev/video0 ls: cannot access /dev/video0: No such file or directory

root@raspberrypi3-rdk-camera:/usr/local/rms/bin# modprobe bcm2835-v4l2 modprobe: FATAL: Module bcm2835-v4l2 not found in directory /lib/modules/5.15.65-v7

root@raspberrypi3-rdk-camera:/usr/local/rms/bin# lsmod Module Size Used by

Additional context

No response

Oct 14 '22 10:10 savidha777

Which camera is this?
What non-standard settings (i.e. any changes you've made) are in config.txt?

Oct 14 '22 10:10 pelwell

Camera : RPi V2 model (imx219)

Not did any changes in config.txt file. whatever we used for 5.4 kernel same file only we are using for 5.15.

For the reference attaching config.txt file config.txt

Oct 14 '22 11:10 savidha777

Your installation looks broken - the standard configurations enable and build bcm2835-v4l2, and our releases include it: https://github.com/raspberrypi/rpi-firmware/tree/stable/modules/5.15.61-v7%2B/kernel/drivers/staging/vc04_services/bcm2835-camera This is not a kernel bug.

Oct 17 '22 10:10 pelwell

Hi @pelwell

Installation are not getting break, all the packages are there in part of image, but modules only not getting load.

upgraded kernel from 5.15.65 to 5.15.74

getting same issue with both the version.

root@raspberrypi3-rdk-camera:~# ls /lib/modules/5.15.74-v7/
kernel/                  modules.builtin          modules.dep              modules.order            modules.symbols.bin
modules.alias            modules.builtin.bin      modules.dep.bin          modules.softdep          
modules.alias.bin        modules.builtin.modinfo  modules.devname          modules.symbols 

root@raspberrypi3-rdk-camera:~# ls /lib/modules/5.15.74-v7/kernel/drivers/staging/vc04_services/bcm2835-camera/bcm2835-v4l2.ko.xz 
/lib/modules/5.15.74-v7/kernel/drivers/staging/vc04_services/bcm2835-camera/bcm2835-v4l2.ko.xz

root@raspberrypi3-rdk-camera:~# modprobe bcm2835-v4l2
modprobe: FATAL: Module bcm2835-v4l2 not found in directory /lib/modules/5.15.74-v7
root@raspberrypi3-rdk-camera:~#

root@raspberrypi3-rdk-camera:~# lsmod
Module                  Size  Used by
root@raspberrypi3-rdk-camera:~#

Oct 20 '22 10:10 savidha777

The module loads for me - you are the only person reporting a problem. List the steps you use when building your kernel, including any config changes after "make ARCH=arm bcm2709_defconfig".

Oct 20 '22 10:10 pelwell

This is a big clue that your installation is broken:

root@raspberrypi3-rdk-camera:/usr/local/rms/bin# lsmod
Module Size Used by

No modules are loaded - on a Pi 4 I have 66.

Oct 20 '22 10:10 pelwell

We are using linux-raspberrypi yocto recipe to compile kernel module.

please find below recipe 5.10.52 recipe: https://code.rdkcentral.com/r/plugins/gitiles/rdk/components/generic/rdk-oe/meta-cmf-raspberrypi/+/refs/heads/rdk-next/recipes-kernel/linux/linux-raspberrypi_5.10.52.bb

Modules are properly loading with 5.10.52 root@raspberrypi3-rdk-camera:~# uname -r 5.10.52-v7 root@raspberrypi3-rdk-camera:~# lsmod Module Size Used by snd_seq_dummy 16384 0 snd_hrtimer 16384 1 snd_seq 69632 7 snd_seq_dummy snd_seq_device 16384 1 snd_seq hci_uart 40960 1 btbcm 16384 1 hci_uart bluetooth 413696 3 hci_uart,btbcm ecdh_generic 16384 1 bluetooth ecc 40960 1 ecdh_generic brcmfmac 331776 0 brcmutil 20480 1 brcmfmac sha256_generic 16384 0 bcm2835_codec 40960 0 bcm2835_isp 32768 0 raspberrypi_hwmon 16384 0 bcm2835_v4l2 49152 1 snd_bcm2835 24576 1 v4l2_mem2mem 36864 1 bcm2835_codec videobuf2_dma_contig 20480 2 bcm2835_isp,bcm2835_codec bcm2835_mmal_vchiq 28672 3 bcm2835_isp,bcm2835_codec,bcm2835_v4l2 cfg80211 782336 1 brcmfmac videobuf2_vmalloc 16384 1 bcm2835_v4l2 videobuf2_memops 16384 2 videobuf2_dma_contig,videobuf2_vmalloc videobuf2_v4l2 32768 4 bcm2835_isp,bcm2835_codec,bcm2835_v4l2,v4l2_mem2mem videobuf2_common 61440 5 bcm2835_isp,bcm2835_codec,bcm2835_v4l2,v4l2_mem2mem,videobuf2_v4l2 snd_pcm 114688 1 snd_bcm2835 rfkill 32768 3 bluetooth,cfg80211 videodev 253952 7 bcm2835_isp,bcm2835_codec,videobuf2_common,bcm2835_v4l2,v4l2_mem2mem,videobuf2_v4l2 snd_timer 32768 3 snd_seq,snd_hrtimer,snd_pcm snd 77824 9 snd_seq,snd_timer,snd_seq_device,snd_bcm2835,snd_pcm mc 45056 6 bcm2835_isp,bcm2835_codec,videobuf2_common,videodev,v4l2_mem2mem,videobuf2_v4l2 vc_sm_cma 32768 2 bcm2835_isp,bcm2835_mmal_vchiq uio_pdrv_genirq 16384 0 uio 20480 1 uio_pdrv_genirq fixed 16384 0 sch_fq_codel 24576 3 ipv6 503808 28

Using same recipe with modified 5.15.74 revision and compiled 5.15.74 kernel

Getting issue only with 5.15 not with 5.10

I have noted 5.10 and 5.4 having *.ko but 5.15 having *.ko.xz file for all the module, Is this *.ko.xz creating the issue? or any specific configuration required for 5.15.

example: 5.10: root@raspberrypi3-rdk-camera:/lib/modules/5.10.52-v7/kernel/drivers/staging/vc04_services/bcm2835-camera# ls bcm2835-v4l2.ko

5.15: root@raspberrypi3-rdk-camera:~# ls /lib/modules/5.15.74-v7/kernel/drivers/staging/vc04_services/bcm2835-camera/bcm2835-v4l2.ko.xz /lib/modules/5.15.74-v7/kernel/drivers/staging/vc04_services/bcm2835-camera/bcm2835-v4l2.ko.xz

Oct 20 '22 12:10 savidha777

You need CONFIG_MODULE_COMPRESS_XZ=y, but that's set in bcm2709_defconfig.

Oct 20 '22 12:10 pelwell

Modules are loading with disabled compression flag "CONFIG_MODULE_COMPRESS_XZ=n".

root@raspberrypi3-rdk-camera:~# uname -r 5.15.74-v7 root@raspberrypi3-rdk-camera:~# lsmod Module Size Used by hci_uart 40960 1 btbcm 20480 1 hci_uart bluetooth 413696 3 hci_uart,btbcm ecdh_generic 16384 1 bluetooth ecc 40960 1 ecdh_generic imx219 20480 1 i2c_mux_pinctrl 16384 0 i2c_mux 16384 1 i2c_mux_pinctrl brcmfmac 335872 0 brcmutil 20480 1 brcmfmac raspberrypi_hwmon 16384 0 bcm2835_codec 45056 0 bcm2835_v4l2 45056 0 v4l2_mem2mem 36864 1 bcm2835_codec bcm2835_unicam 45056 0 bcm2835_isp 32768 0 v4l2_dv_timings 36864 1 bcm2835_unicam sha256_generic 16384 0 v4l2_fwnode 24576 2 bcm2835_unicam,imx219 bcm2835_mmal_vchiq 32768 3 bcm2835_isp,bcm2835_codec,bcm2835_v4l2 v4l2_async 24576 3 bcm2835_unicam,imx219,v4l2_fwnode videobuf2_dma_contig 20480 3 bcm2835_unicam,bcm2835_isp,bcm2835_codec videobuf2_vmalloc 16384 1 bcm2835_v4l2 videobuf2_memops 16384 2 videobuf2_dma_contig,videobuf2_vmalloc videobuf2_v4l2 32768 5 bcm2835_unicam,bcm2835_isp,bcm2835_codec,bcm2835_v4l2,v4l2_mem2mem snd_bcm2835 24576 0 cfg80211 770048 1 brcmfmac videobuf2_common 65536 9 bcm2835_unicam,bcm2835_isp,bcm2835_codec,videobuf2_dma_contig,videobuf2_vmalloc,videobuf2_memops,bcm2835_v4l2,v4l2_mem2mem,videobuf2_v4l2 snd_pcm 114688 1 snd_bcm2835 rfkill 32768 3 bluetooth,cfg80211 videodev 249856 9 bcm2835_unicam,imx219,bcm2835_isp,bcm2835_codec,videobuf2_common,bcm2835_v4l2,v4l2_mem2mem,videobuf2_v4l2,v4l2_async snd_timer 32768 1 snd_pcm mc 45056 9 bcm2835_unicam,imx219,bcm2835_isp,bcm2835_codec,videobuf2_common,videodev,v4l2_mem2mem,videobuf2_v4l2,v4l2_async snd 86016 3 snd_timer,snd_bcm2835,snd_pcm vc_sm_cma 32768 2 bcm2835_isp,bcm2835_mmal_vchiq uio_pdrv_genirq 16384 0 uio 20480 1 uio_pdrv_genirq fixed 16384 3 sch_fq_codel 24576 3 ipv6 524288 26 root@raspberrypi3-rdk-camera:~#

Oct 21 '22 14:10 savidha777