On 06.02.23 16:50, Laurent Pinchart wrote:
> On Mon, Feb 06, 2023 at 04:38:27PM +0100, Frieder Schrempf wrote:
>> On 06.02.23 16:31, Laurent Pinchart wrote:
>>> On Mon, Feb 06, 2023 at 03:24:41PM +0100, Frieder Schrempf wrote:
>>>> Hi,
>>>>
>>>> I'm trying to get a camera stream on our i.MX8MM board up and running
>>>> with Linux 6.1. I'm using the RPi v2.1 camera module (imx219) as sensor.
>>>>
>>>> I basically copied the devicetree setup from Tim's overlay at
>>>> arch/arm64/boot/dts/freescale/imx8mm-venice-gw72xx-0x-imx219.dts.
>>>>
>>>> With all the drivers enabled the devices (imx219, imx7-media-csi,
>>>> imx-mipi-csis) seem to probe just fine and I see /dev/video0 and
>>>> /dev/media0.
>>>>
>>>> For the v4l subdevices I would expect to see one for the sensor and one
>>>> for the CSI bridge. But only the latter is there (see below).
>>>>
>>>> Is this correct? Am I missing something? How can I setup/enable the
>>>> pipeline/stream?
>>>
>>> Your expectations are correct, but the result isn't. You should see the
>>> camera sensor in the media graph. Has the imx219 been probed by the
>>> driver ? Did probe succeed ?
>>
>> Yes, the imx219_probe() works just fine and returns with code 0. I also
>> see v4l2_async_register_subdev_sensor() and the underlying code being
>> called.
>>
>> So I really don't understand why I'm missing the sensor subdev. Any
>> ideas how to continue debugging?
>
> The issue seems to be with v4l2-async then. There's a debugfs file that
> lists the missing v4l2-async subdevs (I don't recall the path by heard),
> that can give useful information. Enabling the debug messages from
> v4l2-async.c may helpt too.
+Cc: Dave, Sakari, Javier (thanks for your help and debugging hints via
mail/IRC)
/sys/kernel/debug/v4l2-async/pending_async_subdevices gives me:
csis-32e30000.mipi-csi:
[fwnode] dev=1-0010,
node=/soc@0/bus@30800000/i2c@30a30000/sensor@10/port/endpoint
imx219 1-0010:
imx-media:
So it looks like the async subdev for the imx219 sensor is still pending.
I have spent quite a few hours trying to understand how the code is
supposed to work, but I'm afraid it's too much for my brain at the moment ;)
I have attached a debug patch [1] adding printks in v4l2-async.c and the
boot log [2] with all the output below. Hopefully someone can have a
look and make something out of that. Feel free to let me know via email
or IRC if I can provide any further information.
Thanks!
[ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[ 0.000000] Linux version 6.2.0-rc7-ktn (oe-user@oe-host) (aarch64-ktn-linux-gcc (GCC) 11.3.0, GNU ld (GNU Binutils) 2.38.20220708) #1 SMP PREEMPT Tue Feb 7 08:25:13 UTC 2023
[ 0.000000] Machine model: Kontron BL i.MX8MM (N801X S)
[ 0.000000] efi: UEFI not found.
[ 0.000000] NUMA: No NUMA configuration found
[ 0.000000] NUMA: Faking a node at [mem 0x0000000040000000-0x000000013fffffff]
[ 0.000000] NUMA: NODE_DATA [mem 0x13f7c2b00-0x13f7c4fff]
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x0000000040000000-0x00000000ffffffff]
[ 0.000000] DMA32 empty
[ 0.000000] Normal [mem 0x0000000100000000-0x000000013fffffff]
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000040000000-0x000000013fffffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000040000000-0x000000013fffffff]
[ 0.000000] cma: Reserved 1024 MiB at 0x00000000bbe00000
[ 0.000000] psci: probing for conduit method from DT.
[ 0.000000] psci: PSCIv1.1 detected in firmware.
[ 0.000000] psci: Using standard PSCI v0.2 function IDs
[ 0.000000] psci: MIGRATE_INFO_TYPE not supported.
[ 0.000000] psci: SMC Calling Convention v1.2
[ 0.000000] percpu: Embedded 20 pages/cpu s42024 r8192 d31704 u81920
[ 0.000000] Detected VIPT I-cache on CPU0
[ 0.000000] CPU features: detected: GIC system register CPU interface
[ 0.000000] CPU features: detected: ARM erratum 845719
[ 0.000000] alternatives: applying boot alternatives
[ 0.000000] Fallback order for Node 0: 0
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 1032192
[ 0.000000] Policy zone: Normal
[ 0.000000] Kernel command line: root=/dev/nfs ip=192.168.1.11:192.168.1.10:::kontron-mx8mm:eth0:any nfsroot=192.168.1.10:/nfsroot,v3,tcp cma=1G rootwait
[ 0.000000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes, linear)
[ 0.000000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes, linear)
[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[ 0.000000] software IO TLB: area num 4.
[ 0.000000] software IO TLB: mapped [mem 0x00000000fbfff000-0x00000000fffff000] (64MB)
[ 0.000000] Memory: 2976216K/4194304K available (13568K kernel code, 1222K rwdata, 4840K rodata, 2368K init, 545K bss, 169512K reserved, 1048576K cma-reserved)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[ 0.000000] rcu: Preemptible hierarchical RCU implementation.
[ 0.000000] rcu: RCU event tracing is enabled.
[ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=4.
[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies.
[ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4
[ 0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[ 0.000000] GICv3: GIC: Using split EOI/Deactivate mode
[ 0.000000] GICv3: 128 SPIs implemented
[ 0.000000] GICv3: 0 Extended SPIs implemented
[ 0.000000] Root IRQ handler: gic_handle_irq
[ 0.000000] GICv3: GICv3 features: 16 PPIs
[ 0.000000] GICv3: CPU0: found redistributor 0 region 0:0x0000000038880000
[ 0.000000] ITS: No ITS available, not enabling LPIs
[ 0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention.
[ 0.000000] arch_timer: cp15 timer(s) running at 8.00MHz (phys).
[ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x1d854df40, max_idle_ns: 440795202120 ns
[ 0.000000] sched_clock: 56 bits at 8MHz, resolution 125ns, wraps every 2199023255500ns
[ 0.000353] Console: colour dummy device 80x25
[ 0.000363] printk: console [tty0] enabled
[ 0.000858] Calibrating delay loop (skipped), value calculated using timer frequency.. 16.00 BogoMIPS (lpj=32000)
[ 0.000881] pid_max: default: 32768 minimum: 301
[ 0.000940] LSM: initializing lsm=capability,integrity
[ 0.001043] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes, linear)
[ 0.001072] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes, linear)
[ 0.002504] rcu: Hierarchical SRCU implementation.
[ 0.002526] rcu: Max phase no-delay instances is 1000.
[ 0.003357] EFI services will not be available.
[ 0.003583] smp: Bringing up secondary CPUs ...
[ 0.004061] Detected VIPT I-cache on CPU1
[ 0.004136] GICv3: CPU1: found redistributor 1 region 0:0x00000000388a0000
[ 0.004178] CPU1: Booted secondary processor 0x0000000001 [0x410fd034]
[ 0.004649] Detected VIPT I-cache on CPU2
[ 0.004712] GICv3: CPU2: found redistributor 2 region 0:0x00000000388c0000
[ 0.004736] CPU2: Booted secondary processor 0x0000000002 [0x410fd034]
[ 0.005177] Detected VIPT I-cache on CPU3
[ 0.005238] GICv3: CPU3: found redistributor 3 region 0:0x00000000388e0000
[ 0.005259] CPU3: Booted secondary processor 0x0000000003 [0x410fd034]
[ 0.005316] smp: Brought up 1 node, 4 CPUs
[ 0.005403] SMP: Total of 4 processors activated.
[ 0.005414] CPU features: detected: 32-bit EL0 Support
[ 0.005424] CPU features: detected: 32-bit EL1 Support
[ 0.005440] CPU features: detected: CRC32 instructions
[ 0.005506] CPU: All CPU(s) started at EL2
[ 0.005524] alternatives: applying system-wide alternatives
[ 0.007432] devtmpfs: initialized
[ 0.013542] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[ 0.013594] futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
[ 0.043563] pinctrl core: initialized pinctrl subsystem
[ 0.045549] DMI not present or invalid.
[ 0.046159] NET: Registered PF_NETLINK/PF_ROUTE protocol family
[ 0.047073] DMA: preallocated 512 KiB GFP_KERNEL pool for atomic allocations
[ 0.047276] DMA: preallocated 512 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations
[ 0.047441] DMA: preallocated 512 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations
[ 0.047501] audit: initializing netlink subsys (disabled)
[ 0.047623] audit: type=2000 audit(0.044:1): state=initialized audit_enabled=0 res=1
[ 0.048000] thermal_sys: Registered thermal governor 'step_wise'
[ 0.048033] cpuidle: using governor menu
[ 0.048199] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
[ 0.048287] ASID allocator initialised with 65536 entries
[ 0.048955] Serial: AMBA PL011 UART driver
[ 0.055254] imx8mm-pinctrl 30330000.pinctrl: initialized IMX pinctrl driver
[ 0.066886] HugeTLB: registered 1.00 GiB page size, pre-allocated 0 pages
[ 0.066917] HugeTLB: 16380 KiB vmemmap can be freed for a 1.00 GiB page
[ 0.066932] HugeTLB: registered 32.0 MiB page size, pre-allocated 0 pages
[ 0.066944] HugeTLB: 508 KiB vmemmap can be freed for a 32.0 MiB page
[ 0.066958] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages
[ 0.066972] HugeTLB: 28 KiB vmemmap can be freed for a 2.00 MiB page
[ 0.066987] HugeTLB: registered 64.0 KiB page size, pre-allocated 0 pages
[ 0.067000] HugeTLB: 0 KiB vmemmap can be freed for a 64.0 KiB page
[ 0.068588] ACPI: Interpreter disabled.
[ 0.069385] iommu: Default domain type: Translated
[ 0.069405] iommu: DMA domain TLB invalidation policy: strict mode
[ 0.069649] SCSI subsystem initialized
[ 0.069932] usbcore: registered new interface driver usbfs
[ 0.069969] usbcore: registered new interface driver hub
[ 0.070007] usbcore: registered new device driver usb
[ 0.070643] mc: Linux media interface: v0.10
[ 0.070690] videodev: Linux video capture interface: v2.00
[ 0.070754] pps_core: LinuxPPS API ver. 1 registered
[ 0.070765] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@xxxxxxxx>
[ 0.070791] PTP clock support registered
[ 0.070920] EDAC MC: Ver: 3.0.0
[ 0.071496] FPGA manager framework
[ 0.071573] Advanced Linux Sound Architecture Driver Initialized.
[ 0.072353] vgaarb: loaded
[ 0.072652] clocksource: Switched to clocksource arch_sys_counter
[ 0.072831] VFS: Disk quotas dquot_6.6.0
[ 0.072867] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[ 0.073038] pnp: PnP ACPI: disabled
[ 0.079203] NET: Registered PF_INET protocol family
[ 0.079432] IP idents hash table entries: 65536 (order: 7, 524288 bytes, linear)
[ 0.082247] tcp_listen_portaddr_hash hash table entries: 2048 (order: 3, 32768 bytes, linear)
[ 0.082335] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear)
[ 0.082361] TCP established hash table entries: 32768 (order: 6, 262144 bytes, linear)
[ 0.082592] TCP bind hash table entries: 32768 (order: 8, 1048576 bytes, linear)
[ 0.083553] TCP: Hash tables configured (established 32768 bind 32768)
[ 0.083705] UDP hash table entries: 2048 (order: 4, 65536 bytes, linear)
[ 0.083806] UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes, linear)
[ 0.084021] NET: Registered PF_UNIX/PF_LOCAL protocol family
[ 0.084433] RPC: Registered named UNIX socket transport module.
[ 0.084451] RPC: Registered udp transport module.
[ 0.084462] RPC: Registered tcp transport module.
[ 0.084474] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.084493] PCI: CLS 0 bytes, default 64
[ 0.085132] hw perfevents: enabled with armv8_cortex_a53 PMU driver, 7 counters available
[ 0.085846] kvm [1]: IPA Size Limit: 40 bits
[ 0.087132] kvm [1]: GICv3: no GICV resource entry
[ 0.087146] kvm [1]: disabling GICv2 emulation
[ 0.087164] kvm [1]: GIC system register CPU interface enabled
[ 0.087258] kvm [1]: vgic interrupt IRQ9
[ 0.087360] kvm [1]: Hyp mode initialized successfully
[ 0.088486] Initialise system trusted keyrings
[ 0.088687] workingset: timestamp_bits=42 max_order=20 bucket_order=0
[ 0.088988] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.089207] NFS: Registering the id_resolver key type
[ 0.089262] Key type id_resolver registered
[ 0.089274] Key type id_legacy registered
[ 0.089303] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 0.089317] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering...
[ 0.089466] 9p: Installing v9fs 9p2000 file system support
[ 0.124669] Key type asymmetric registered
[ 0.124683] Asymmetric key parser 'x509' registered
[ 0.124735] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 244)
[ 0.124753] io scheduler mq-deadline registered
[ 0.124764] io scheduler kyber registered
[ 0.128006] EINJ: ACPI disabled.
[ 0.136799] SoC: i.MX8MM revision 1.0
[ 0.141870] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 0.143967] 30860000.serial: ttymxc0 at MMIO 0x30860000 (irq = 16, base_baud = 1500000) is a IMX
[ 0.144488] 30880000.serial: ttymxc2 at MMIO 0x30880000 (irq = 17, base_baud = 1500000) is a IMX
[ 0.144522] imx-uart 30880000.serial: Console IMX rounded baud rate from 114286 to 114300
[ 0.144571] printk: console [ttymxc2] enabled
[ 1.126108] 30890000.serial: ttymxc1 at MMIO 0x30890000 (irq = 18, base_baud = 1500000) is a IMX
[ 1.144256] loop: module loaded
[ 1.150889] tun: Universal TUN/TAP device driver, 1.6
[ 1.156153] CAN device driver interface
[ 1.160606] thunder_xcv, ver 1.0
[ 1.163879] thunder_bgx, ver 1.0
[ 1.167145] nicpf, ver 1.0
[ 1.170627] hns3: Hisilicon Ethernet Network Driver for Hip08 Family - version
[ 1.177871] hns3: Copyright (c) 2017 Huawei Corporation.
[ 1.183231] hclge is initializing
[ 1.186586] e1000e: Intel(R) PRO/1000 Network Driver
[ 1.191565] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[ 1.197519] igb: Intel(R) Gigabit Ethernet Network Driver
[ 1.202932] igb: Copyright (c) 2007-2014 Intel Corporation.
[ 1.208538] igbvf: Intel(R) Gigabit Virtual Function Network Driver
[ 1.214821] igbvf: Copyright (c) 2009 - 2012 Intel Corporation.
[ 1.220881] sky2: driver version 1.30
[ 1.225044] VFIO - User Level meta-driver version: 0.3
[ 1.231934] usbcore: registered new interface driver usb-storage
[ 1.240846] snvs_rtc 30370000.snvs:snvs-rtc-lp: registered as rtc0
[ 1.247080] snvs_rtc 30370000.snvs:snvs-rtc-lp: setting system clock to 1970-01-01T00:00:00 UTC (0)
[ 1.256271] i2c_dev: i2c /dev entries driver
[ 1.261317] imx7-csi 32e20000.csi: Registered csi capture as /dev/video0
[ 1.268186] __v4l2_async_nf_register:610
[ 1.272130] imx-media:
[ 1.274676] v4l2_async_nf_try_all_subdevs:447
[ 1.279048] imx-media:
[ 1.281593] v4l2_async_nf_try_all_subdevs:454
[ 1.285965] imx7_csi_notify_complete:2178
[ 1.291153] i.mx8mm_thermal 30260000.tmu: No OCOTP nvmem reference found, SoC-specific calibration not loaded. Please update your DT.
[ 1.303945] ghes_edac: GHES probing device list is empty
[ 1.304979] sdhci: Secure Digital Host Controller Interface driver
[ 1.316524] sdhci: Copyright(c) Pierre Ossman
[ 1.321082] Synopsys Designware Multimedia Card Interface Driver
[ 1.327600] sdhci-pltfm: SDHCI platform and OF driver helper
[ 1.334945] ledtrig-cpu: registered to indicate activity on CPUs
[ 1.341184] SMCCC: SOC_ID: ARCH_SOC_ID not implemented, skipping ....
[ 1.348164] caam 30900000.crypto: device ID = 0x0a16040100000000 (Era 9)
[ 1.354896] caam 30900000.crypto: job rings = 2, qi = 0
[ 1.362676] caam algorithms registered in /proc/crypto
[ 1.368007] caam 30900000.crypto: caam pkc algorithms registered in /proc/crypto
[ 1.375430] caam 30900000.crypto: registering rng-caam
[ 1.382285] caam 30900000.crypto: rng crypto API alg registered prng-caam
[ 1.390544] usbcore: registered new interface driver usbhid
[ 1.396148] usbhid: USB HID core driver
[ 1.404433] NET: Registered PF_PACKET protocol family
[ 1.409533] can: controller area network core
[ 1.413943] NET: Registered PF_CAN protocol family
[ 1.418750] can: raw protocol
[ 1.421735] can: broadcast manager protocol
[ 1.425933] can: netlink gateway - max_hops=1
[ 1.430383] 9pnet: Installing 9P2000 support
[ 1.434710] Key type dns_resolver registered
[ 1.448009] Loading compiled-in X.509 certificates
[ 1.471560] gpio gpiochip0: Static allocation of GPIO base is deprecated, use dynamic allocation.
[ 1.481811] gpio gpiochip1: Static allocation of GPIO base is deprecated, use dynamic allocation.
[ 1.492337] gpio gpiochip2: Static allocation of GPIO base is deprecated, use dynamic allocation.
[ 1.501638] random: crng init done
[ 1.502850] gpio gpiochip3: Static allocation of GPIO base is deprecated, use dynamic allocation.
[ 1.515529] gpio gpiochip4: Static allocation of GPIO base is deprecated, use dynamic allocation.
[ 1.526485] usb_phy_generic usbphynop1: dummy supplies not allowed for exclusive requests
[ 1.534906] usb_phy_generic usbphynop2: dummy supplies not allowed for exclusive requests
[ 1.563552] nxp-pca9450 0-0025: pca9450a probed.
[ 1.568286] i2c i2c-0: IMX I2C adapter registered
[ 1.574158] i2c 1-0010: Fixing up cyclic dependency with 32e30000.mipi-csi
[ 1.581331] imx219 1-0010: supply VANA not found, using dummy regulator
[ 1.588140] imx219 1-0010: supply VDDL not found, using dummy regulator
[ 1.604714] v4l2_async_register_subdev_sensor:1296
[ 1.609531] v4l2_async_register_subdev_sensor:1311
[ 1.614336] __v4l2_async_nf_register:610
[ 1.618273] imx219 1-0010:
[ 1.621166] v4l2_async_nf_try_all_subdevs:447
[ 1.625534] imx219 1-0010:
[ 1.628423] imx-media:
[ 1.630968] v4l2_async_register_subdev_sensor:1317
[ 1.635773] v4l2_async_register_subdev:858
[ 1.639880] imx219 1-0010:
[ 1.642771] imx-media:
[ 1.645317] v4l2_async_register_subdev:866
[ 1.649426] imx219 1-0010:
[ 1.652309] v4l2_async_register_subdev:866
[ 1.656422] imx-media:
[ 1.658964] v4l2_async_register_subdev:872
[ 1.663075] v4l2_async_find_match:231
[ 1.666749] v4l2_async_register_subdev_sensor:1323
[ 1.671693] i2c i2c-1: IMX I2C adapter registered
[ 1.678216] rtc-rv8803 3-0032: An alarm maybe have been missed.
[ 1.689415] rtc-rv8803 3-0032: registered as rtc1
[ 1.694258] i2c i2c-3: IMX I2C adapter registered
[ 1.701296] imx6q-pcie 33800000.pcie: host bridge /soc@0/pcie@33800000 ranges:
[ 1.708603] imx6q-pcie 33800000.pcie: IO 0x001ff80000..0x001ff8ffff -> 0x0000000000
[ 1.710257] etnaviv etnaviv: bound 38000000.gpu (ops gpu_ops)
[ 1.716820] imx6q-pcie 33800000.pcie: MEM 0x0018000000..0x001fefffff -> 0x0018000000
[ 1.723602] etnaviv etnaviv: bound 38008000.gpu (ops gpu_ops)
[ 1.736530] etnaviv-gpu 38000000.gpu: model: GC600, revision: 4653
[ 1.742802] etnaviv-gpu 38000000.gpu: Need to move linear window on MC1.0, disabling TS
[ 1.750837] etnaviv-gpu 38008000.gpu: model: GC520, revision: 5341
[ 1.758304] [drm] Initialized etnaviv 1.3.0 20151214 for etnaviv on minor 0
[ 1.768636] pps pps0: new PPS source ptp0
[ 1.839197] fec 30be0000.ethernet eth0: registered PHC device 0
[ 1.945171] imx6q-pcie 33800000.pcie: iATU: unroll T, 4 ob, 4 ib, align 64K, limit 4G
[ 1.960957] ci_hdrc ci_hdrc.1: EHCI Host Controller
[ 1.965895] ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 1
[ 1.989045] ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00
[ 1.995595] hub 1-0:1.0: USB hub found
[ 1.999385] hub 1-0:1.0: 1 port detected
[ 2.005195] pwm-beeper pwm-beeper: supply amp not found, using dummy regulator
[ 2.012684] input: pwm-beeper as /devices/platform/pwm-beeper/input/input0
[ 2.021068] __v4l2_async_nf_register:610
[ 2.025028] csis-32e30000.mipi-csi:
[ 2.028714] __v4l2_async_nf_register:619
[ 2.032653] [fwnode] dev=1-0010, node=/soc@0/bus@30800000/i2c@30a30000/sensor@10/port/endpoint
[ 2.041386] __v4l2_async_nf_register:625
[ 2.045323] v4l2_async_nf_try_all_subdevs:447
[ 2.049694] csis-32e30000.mipi-csi:
[ 2.053375] imx219 1-0010:
[ 2.053677] imx6q-pcie 33800000.pcie: PCIe Gen.1 x1 link up
[ 2.056256] imx-media:
[ 2.056259] v4l2_async_register_subdev:858
[ 2.068481] csis-32e30000.mipi-csi:
[ 2.072157] [fwnode] dev=1-0010, node=/soc@0/bus@30800000/i2c@30a30000/sensor@10/port/endpoint
[ 2.080888] imx219 1-0010:
[ 2.083772] imx-media:
[ 2.086319] v4l2_async_register_subdev:866
[ 2.090426] csis-32e30000.mipi-csi:
[ 2.094099] v4l2_async_register_subdev:866
[ 2.098210] imx219 1-0010:
[ 2.101103] v4l2_async_register_subdev:866
[ 2.105211] imx-media:
[ 2.107752] v4l2_async_register_subdev:872
[ 2.111860] v4l2_async_find_match:231
[ 2.115586] imx-mipi-csis 32e30000.mipi-csi: lanes: 2, freq: 333000000
[ 2.122481] imx-cpufreq-dt imx-cpufreq-dt: cpu speed grade 2 mkt segment 2 supported-hw 0x4 0x4
[ 2.135942] sdhci-esdhc-imx 30b50000.mmc: Got CD GPIO
[ 2.156722] imx6q-pcie 33800000.pcie: PCIe Gen.2 x1 link up
[ 2.161522] mmc0: SDHCI controller on 30b40000.mmc [30b40000.mmc] using ADMA
[ 2.162324] imx6q-pcie 33800000.pcie: Link up, Gen2
[ 2.173599] mmc1: SDHCI controller on 30b50000.mmc [30b50000.mmc] using ADMA
[ 2.174245] imx6q-pcie 33800000.pcie: PCIe Gen.2 x1 link up
[ 2.187152] imx6q-pcie 33800000.pcie: PCI host bridge to bus 0000:00
[ 2.193541] pci_bus 0000:00: root bus resource [bus 00-ff]
[ 2.199042] pci_bus 0000:00: root bus resource [io 0x0000-0xffff]
[ 2.205236] pci_bus 0000:00: root bus resource [mem 0x18000000-0x1fefffff]
[ 2.212149] pci 0000:00:00.0: [16c3:abcd] type 01 class 0x060400
[ 2.218177] pci 0000:00:00.0: reg 0x10: [mem 0x00000000-0x000fffff]
[ 2.224462] pci 0000:00:00.0: reg 0x38: [mem 0x00000000-0x0000ffff pref]
[ 2.228210] mmc1: host does not support reading read-only switch, assuming write-enable
[ 2.231208] pci 0000:00:00.0: supports D1
[ 2.243214] pci 0000:00:00.0: PME# supported from D0 D1 D3hot D3cold
[ 2.251105] pci 0000:01:00.0: [1d79:2263] type 00 class 0x010802
[ 2.257216] pci 0000:01:00.0: reg 0x10: [mem 0x00000000-0x00003fff 64bit]
[ 2.262659] mmc0: new HS400 Enhanced strobe MMC card at address 0001
[ 2.264520] pci 0000:01:00.0: 4.000 Gb/s available PCIe bandwidth, limited by 5.0 GT/s PCIe x1 link at 0000:00:00.0 (capable of 15.752 Gb/s with 8.0 GT/s PCIe x2 link)
[ 2.264662] usb 1-1: new high-speed USB device number 2 using ci_hdrc
[ 2.271786] mmcblk0: mmc0:0001 032GB2 29.1 GiB
[ 2.285638] pci 0000:00:00.0: BAR 0: assigned [mem 0x18000000-0x180fffff]
[ 2.295739] mmcblk0boot0: mmc0:0001 032GB2 4.00 MiB
[ 2.296312] pci 0000:00:00.0: BAR 14: assigned [mem 0x18100000-0x181fffff]
[ 2.304956] mmcblk0boot1: mmc0:0001 032GB2 4.00 MiB
[ 2.308058] pci 0000:00:00.0: BAR 6: assigned [mem 0x18200000-0x1820ffff pref]
[ 2.316622] mmcblk0rpmb: mmc0:0001 032GB2 4.00 MiB, chardev (241:0)
[ 2.319904] pci 0000:01:00.0: BAR 0: assigned [mem 0x18100000-0x18103fff 64bit]
[ 2.340843] pci 0000:00:00.0: PCI bridge to [bus 01-ff]
[ 2.346091] pci 0000:00:00.0: bridge window [mem 0x18100000-0x181fffff]
[ 2.350724] mmc1: new ultra high speed SDR104 SDHC card at address aaaa
[ 2.353190] pcieport 0000:00:00.0: PME: Signaling with IRQ 215
[ 2.360527] mmcblk1: mmc1:aaaa SL16G 14.8 GiB
[ 2.375373] mmcblk1: p1 p2
[ 2.428063] hub 1-1:1.0: USB hub found
[ 2.432315] hub 1-1:1.0: 5 ports detected
[ 2.512067] Microsemi VSC8531 30be0000.ethernet-1:00: attached PHY driver (mii_bus:phy_addr=30be0000.ethernet-1:00, irq=POLL)
[ 2.729028] usb 1-1.1: new high-speed USB device number 3 using ci_hdrc
[ 5.602118] fec 30be0000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx
[ 5.625029] IP-Config: Guessing netmask 255.255.255.0
[ 5.630108] IP-Config: Complete:
[ 5.633354] device=eth0, hwaddr=70:82:0e:13:9a:32, ipaddr=192.168.1.11, mask=255.255.255.0, gw=255.255.255.255
[ 5.643814] host=kontron-mx8mm, domain=, nis-domain=(none)
[ 5.649751] bootserver=192.168.1.10, rootserver=192.168.1.10, rootpath=
[ 5.651593] ALSA device list:
[ 5.661655] No soundcards found.
[ 5.688286] VFS: Mounted root (nfs filesystem) readonly on device 0:20.
[ 5.696353] devtmpfs: mounted
[ 5.699869] Freeing unused kernel memory: 2368K
[ 5.708679] Run /sbin/init as init process
diff --git a/drivers/media/platform/nxp/imx-mipi-csis.c b/drivers/media/platform/nxp/imx-mipi-csis.c
index 905072871ed2..eb35657bb7a2 100644
--- a/drivers/media/platform/nxp/imx-mipi-csis.c
+++ b/drivers/media/platform/nxp/imx-mipi-csis.c
@@ -1275,6 +1275,8 @@ static int mipi_csis_notify_bound(struct v4l2_async_notifier *notifier,
struct mipi_csis_device *csis = mipi_notifier_to_csis_state(notifier);
struct media_pad *sink = &csis->sd.entity.pads[CSIS_PAD_SINK];
+ printk("%s:%d\n", __func__, __LINE__);
+
return v4l2_create_fwnode_links_to_pad(sd, sink, 0);
}
diff --git a/drivers/media/platform/nxp/imx7-media-csi.c b/drivers/media/platform/nxp/imx7-media-csi.c
index 886374d3a6ff..6fc7bafdd436 100644
--- a/drivers/media/platform/nxp/imx7-media-csi.c
+++ b/drivers/media/platform/nxp/imx7-media-csi.c
@@ -2165,6 +2165,8 @@ static int imx7_csi_notify_bound(struct v4l2_async_notifier *notifier,
csi->src_sd = sd;
+ printk("%s:%d\n", __func__, __LINE__);
+
return v4l2_create_fwnode_links_to_pad(sd, sink, MEDIA_LNK_FL_ENABLED |
MEDIA_LNK_FL_IMMUTABLE);
}
@@ -2173,6 +2175,8 @@ static int imx7_csi_notify_complete(struct v4l2_async_notifier *notifier)
{
struct imx7_csi *csi = imx7_csi_notifier_to_dev(notifier);
+ printk("%s:%d\n", __func__, __LINE__);
+
return v4l2_device_register_subdev_nodes(&csi->v4l2_dev);
}
diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c
index 2f1b718a9189..820abb5ce77c 100644
--- a/drivers/media/v4l2-core/v4l2-async.c
+++ b/drivers/media/v4l2-core/v4l2-async.c
@@ -86,6 +86,8 @@ match_fwnode_one(struct v4l2_async_notifier *notifier,
bool sd_fwnode_is_ep;
struct device *dev;
+ printk("%s:%d\n", __func__, __LINE__);
+
/*
* Both the subdev and the async subdev can provide either an endpoint
* fwnode or a device fwnode. Start with the simple case of direct
@@ -94,6 +96,8 @@ match_fwnode_one(struct v4l2_async_notifier *notifier,
if (sd_fwnode == asd->match.fwnode)
return true;
+ printk("%s:%d\n", __func__, __LINE__);
+
/*
* Otherwise, check if the sd fwnode and the asd fwnode refer to an
* endpoint or a device. If they're of the same type, there's no match.
@@ -108,6 +112,8 @@ match_fwnode_one(struct v4l2_async_notifier *notifier,
if (sd_fwnode_is_ep == asd_fwnode_is_ep)
return false;
+ printk("%s:%d\n", __func__, __LINE__);
+
/*
* The sd and asd fwnodes are of different types. Get the device fwnode
* parent of the endpoint fwnode, and compare it with the other fwnode.
@@ -125,6 +131,8 @@ match_fwnode_one(struct v4l2_async_notifier *notifier,
if (dev_fwnode != other_fwnode)
return false;
+ printk("%s:%d\n", __func__, __LINE__);
+
/*
* We have a heterogeneous match. Retrieve the struct device of the side
* that matched on a device fwnode to print its driver name.
@@ -163,6 +171,55 @@ static LIST_HEAD(subdev_list);
static LIST_HEAD(notifier_list);
static DEFINE_MUTEX(list_lock);
+static const char *
+v4l2_async_nf_name(struct v4l2_async_notifier *notifier)
+{
+ if (notifier->v4l2_dev)
+ return notifier->v4l2_dev->name;
+ else if (notifier->sd)
+ return notifier->sd->name;
+ else
+ return "nil";
+}
+
+static void print_subdev(struct v4l2_async_subdev *asd)
+{
+ switch (asd->match_type) {
+ case V4L2_ASYNC_MATCH_I2C:
+ printk(" [i2c] dev=%d-%04x\n", asd->match.i2c.adapter_id,
+ asd->match.i2c.address);
+ break;
+ case V4L2_ASYNC_MATCH_FWNODE: {
+ struct fwnode_handle *devnode, *fwnode = asd->match.fwnode;
+
+ devnode = fwnode_graph_is_endpoint(fwnode) ?
+ fwnode_graph_get_port_parent(fwnode) :
+ fwnode_handle_get(fwnode);
+
+ printk(" [fwnode] dev=%s, node=%pfw\n",
+ devnode->dev ? dev_name(devnode->dev) : "nil",
+ fwnode);
+
+ fwnode_handle_put(devnode);
+ break;
+ }
+ }
+}
+
+static int print_notifiers_subdevs(void)
+{
+ struct v4l2_async_notifier *notif;
+ struct v4l2_async_subdev *asd;
+
+ list_for_each_entry(notif, ¬ifier_list, list) {
+ printk(" %s:\n", v4l2_async_nf_name(notif));
+ list_for_each_entry(asd, ¬if->waiting, list)
+ print_subdev(asd);
+ }
+
+ return 0;
+}
+
static struct v4l2_async_subdev *
v4l2_async_find_match(struct v4l2_async_notifier *notifier,
struct v4l2_subdev *sd)
@@ -171,7 +228,11 @@ v4l2_async_find_match(struct v4l2_async_notifier *notifier,
struct v4l2_subdev *sd, struct v4l2_async_subdev *asd);
struct v4l2_async_subdev *asd;
+ printk("%s:%d\n", __func__, __LINE__);
+
list_for_each_entry(asd, ¬ifier->waiting, list) {
+ printk("%s:%d\n", __func__, __LINE__);
+ print_subdev(asd);
/* bus_type has been verified valid before */
switch (asd->match_type) {
case V4L2_ASYNC_MATCH_I2C:
@@ -317,16 +378,22 @@ static int v4l2_async_match_notify(struct v4l2_async_notifier *notifier,
struct v4l2_async_notifier *subdev_notifier;
int ret;
+ printk("%s:%d\n", __func__, __LINE__);
+
ret = v4l2_device_register_subdev(v4l2_dev, sd);
if (ret < 0)
return ret;
+ printk("%s:%d\n", __func__, __LINE__);
+
ret = v4l2_async_nf_call_bound(notifier, sd, asd);
if (ret < 0) {
v4l2_device_unregister_subdev(sd);
return ret;
}
+ printk("%s:%d\n", __func__, __LINE__);
+
/*
* Depending of the function of the entities involved, we may want to
* create links between them (for example between a sensor and its lens
@@ -340,6 +407,8 @@ static int v4l2_async_match_notify(struct v4l2_async_notifier *notifier,
return ret;
}
+ printk("%s:%d\n", __func__, __LINE__);
+
/* Remove from the waiting list */
list_del(&asd->list);
sd->asd = asd;
@@ -355,6 +424,8 @@ static int v4l2_async_match_notify(struct v4l2_async_notifier *notifier,
if (!subdev_notifier || subdev_notifier->parent)
return 0;
+ printk("%s:%d\n", __func__, __LINE__);
+
/*
* Proceed with checking for the sub-device notifier's async
* sub-devices, and return the result. The error will be handled by the
@@ -373,18 +444,29 @@ v4l2_async_nf_try_all_subdevs(struct v4l2_async_notifier *notifier)
v4l2_async_nf_find_v4l2_dev(notifier);
struct v4l2_subdev *sd;
+ printk("%s:%d\n", __func__, __LINE__);
+ printk(" %s:\n", v4l2_async_nf_name(notifier));
+ print_notifiers_subdevs();
+
if (!v4l2_dev)
return 0;
+ printk("%s:%d\n", __func__, __LINE__);
+
again:
list_for_each_entry(sd, &subdev_list, async_list) {
struct v4l2_async_subdev *asd;
int ret;
+ printk("%s:%d\n", __func__, __LINE__);
+
asd = v4l2_async_find_match(notifier, sd);
if (!asd)
continue;
+ printk("%s:%d\n", __func__, __LINE__);
+ print_subdev(asd);
+
ret = v4l2_async_match_notify(notifier, v4l2_dev, sd, asd);
if (ret < 0)
return ret;
@@ -525,16 +607,22 @@ static int __v4l2_async_nf_register(struct v4l2_async_notifier *notifier)
struct v4l2_async_subdev *asd;
int ret, i = 0;
+ printk("%s:%d\n", __func__, __LINE__);
+ printk(" %s:\n", v4l2_async_nf_name(notifier));
+
INIT_LIST_HEAD(¬ifier->waiting);
INIT_LIST_HEAD(¬ifier->done);
mutex_lock(&list_lock);
list_for_each_entry(asd, ¬ifier->asd_list, asd_list) {
+ printk("%s:%d\n", __func__, __LINE__);
+ print_subdev(asd);
ret = v4l2_async_nf_asd_valid(notifier, asd, i++);
if (ret)
goto err_unlock;
+ printk("%s:%d\n", __func__, __LINE__);
list_add_tail(&asd->list, ¬ifier->waiting);
}
@@ -767,18 +855,29 @@ int v4l2_async_register_subdev(struct v4l2_subdev *sd)
INIT_LIST_HEAD(&sd->async_list);
+ printk("%s:%d\n", __func__, __LINE__);
+ print_notifiers_subdevs();
+
list_for_each_entry(notifier, ¬ifier_list, list) {
struct v4l2_device *v4l2_dev =
v4l2_async_nf_find_v4l2_dev(notifier);
struct v4l2_async_subdev *asd;
+ printk("%s:%d\n", __func__, __LINE__);
+ printk(" %s:\n", v4l2_async_nf_name(notifier));
+
if (!v4l2_dev)
continue;
+ printk("%s:%d\n", __func__, __LINE__);
+
asd = v4l2_async_find_match(notifier, sd);
if (!asd)
continue;
+ printk("%s:%d\n", __func__, __LINE__);
+ print_subdev(asd);
+
ret = v4l2_async_match_notify(notifier, v4l2_dev, sd, asd);
if (ret)
goto err_unbind;
@@ -868,17 +967,6 @@ static void print_waiting_subdev(struct seq_file *s,
}
}
-static const char *
-v4l2_async_nf_name(struct v4l2_async_notifier *notifier)
-{
- if (notifier->v4l2_dev)
- return notifier->v4l2_dev->name;
- else if (notifier->sd)
- return notifier->sd->name;
- else
- return "nil";
-}
-
static int pending_subdevs_show(struct seq_file *s, void *data)
{
struct v4l2_async_notifier *notif;
diff --git a/drivers/media/v4l2-core/v4l2-fwnode.c b/drivers/media/v4l2-core/v4l2-fwnode.c
index 3d9533c1b202..45ed62b16327 100644
--- a/drivers/media/v4l2-core/v4l2-fwnode.c
+++ b/drivers/media/v4l2-core/v4l2-fwnode.c
@@ -1293,6 +1293,8 @@ int v4l2_async_register_subdev_sensor(struct v4l2_subdev *sd)
struct v4l2_async_notifier *notifier;
int ret;
+ printk("%s:%d\n", __func__, __LINE__);
+
if (WARN_ON(!sd->dev))
return -ENODEV;
@@ -1306,14 +1308,20 @@ int v4l2_async_register_subdev_sensor(struct v4l2_subdev *sd)
if (ret < 0)
goto out_cleanup;
+ printk("%s:%d\n", __func__, __LINE__);
+
ret = v4l2_async_subdev_nf_register(sd, notifier);
if (ret < 0)
goto out_cleanup;
+ printk("%s:%d\n", __func__, __LINE__);
+
ret = v4l2_async_register_subdev(sd);
if (ret < 0)
goto out_unregister;
+ printk("%s:%d\n", __func__, __LINE__);
+
sd->subdev_notifier = notifier;
return 0;
