Hi Pantelis,
thanks for your prompt reply. Unfortunately, I had to wait until I could
access the test system again.
> > + struct property status_chg = { .name = "status", .length = 9, .value = "disabled" };
> > + int ret;
> > +
>
> ^ The status_chg property is on the stack. You can’t do that, because after you go out
> of scope the property is garbage. You should dynamically allocate.
My actual driver does that dynamically. For the test case, I considered
the stack to be enough to demonstrate my case.
> I bet that even after you fix that you’ll crash anyway.
Yes, it does.
> Note is that on many platforms the path of removing platform devices is borken.
> I see that you’re using PM, that’s even more problematic.
>
> The good news is that we can probably fix it if you give us a detailed log and
> stack trace.
I'll attach the full boot log. I wonder what it contains what was not in
the previous log :)
Thanks,
Wolfram
===
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.0.0-rc4-00009-gcb55587ebc4047 (ninja@katana) (gcc version 4.9.2 (OSELAS.Toolchain-2014.12.0) ) #90 Tue Mar 31 17:04:52 CEST 2015
[ 0.000000] CPU: ARMv7 Processor [413fc0f2] revision 2 (ARMv7), cr=10c5347d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache
[ 0.000000] Machine model: Lager
[ 0.000000] Ignoring memory block 0x140000000 - 0x200000000
[ 0.000000] debug: ignoring loglevel setting.
[ 0.000000] Memory policy: Data cache writeback
[ 0.000000] On node 0 totalpages: 262144
[ 0.000000] free_area_init_node: node 0, pgdat c03dd6c0, node_mem_map eeff8000
[ 0.000000] Normal zone: 1520 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 194560 pages, LIFO batch:31
[ 0.000000] HighMem zone: 67584 pages, LIFO batch:15
[ 0.000000] ------------[ cut here ]------------
[ 0.000000] WARNING: CPU: 0 PID: 0 at arch/arm/kernel/devtree.c:144 arm_dt_init_cpu_maps+0xc0/0x130()
[ 0.000000] DT /cpu 2 nodes greater than max cores 1, capping them
[ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.0.0-rc4-00009-gcb55587ebc4047 #90
[ 0.000000] Hardware name: Generic R8A7790 (Flattened Device Tree)
[ 0.000000] Backtrace:
[ 0.000000] [<c0011c80>] (dump_backtrace) from [<c0011e28>] (show_stack+0x18/0x1c)
[ 0.000000] r6:c02ee547 r5:00000009 r4:00000000 r3:00200000
[ 0.000000] [<c0011e10>] (show_stack) from [<c0259f7c>] (dump_stack+0x20/0x28)
[ 0.000000] [<c0259f5c>] (dump_stack) from [<c00208e0>] (warn_slowpath_common+0x8c/0xb4)
[ 0.000000] [<c0020854>] (warn_slowpath_common) from [<c0020974>] (warn_slowpath_fmt+0x38/0x40)
[ 0.000000] r8:eefcc690 r7:00000001 r6:00000000 r5:00000001 r4:eefcca98
[ 0.000000] [<c0020940>] (warn_slowpath_fmt) from [<c0324a4c>] (arm_dt_init_cpu_maps+0xc0/0x130)
[ 0.000000] r3:00000002 r2:c02ee5d3
[ 0.000000] [<c032498c>] (arm_dt_init_cpu_maps) from [<c03242f4>] (setup_arch+0x5f0/0x6c8)
[ 0.000000] r8:c02ee071 r7:c03cc630 r6:c03c7190 r5:c0340938 r4:ef7fcec0
[ 0.000000] [<c0323d04>] (setup_arch) from [<c03219c4>] (start_kernel+0x88/0x394)
[ 0.000000] r10:00000000 r9:413fc0f2 r8:40004059 r7:c03c4040 r6:ffffffff r5:c03de2c0
[ 0.000000] r4:00000000
[ 0.000000] [<c032193c>] (start_kernel) from [<40008070>] (0x40008070)
[ 0.000000] r9:413fc0f2 r8:40004059 r7:c03c72bc r6:c0341744 r5:c03c40b4 r4:c03de494
[ 0.000000] ---[ end trace cb88537fdc8fa200 ]---
[ 0.000000] CPU: All CPU(s) started in SVC mode.
[ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 260624
[ 0.000000] Kernel command line: ignore_loglevel rw root=/dev/nfs ip=dhcp
[ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Memory: 1027336K/1048576K available (2403K kernel code, 112K rwdata, 764K rodata, 644K init, 8035K bss, 21240K reserved, 0K cma-reserved, 270336K highmem)
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
[ 0.000000] vmalloc : 0xf0000000 - 0xff000000 ( 240 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xef800000 ( 760 MB)
[ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
[ 0.000000] .text : 0xc0008000 - 0xc0320f7c (3172 kB)
[ 0.000000] .init : 0xc0321000 - 0xc03c2000 ( 644 kB)
[ 0.000000] .data : 0xc03c2000 - 0xc03de2c0 ( 113 kB)
[ 0.000000] .bss : 0xc03de2c0 - 0xc0bb7038 (8036 kB)
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] Architected cp15 timer(s) running at 10.00MHz (virt).
[ 0.000008] sched_clock: 56 bits at 10MHz, resolution 100ns, wraps every 3435973836800ns
[ 0.000028] Switching to timer-based delay loop, resolution 100ns
[ 0.001249] Console: colour dummy device 80x30
[ 0.001288] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[ 0.001301] ... MAX_LOCKDEP_SUBCLASSES: 8
[ 0.001314] ... MAX_LOCK_DEPTH: 48
[ 0.001327] ... MAX_LOCKDEP_KEYS: 8191
[ 0.001339] ... CLASSHASH_SIZE: 4096
[ 0.001352] ... MAX_LOCKDEP_ENTRIES: 32768
[ 0.001365] ... MAX_LOCKDEP_CHAINS: 65536
[ 0.001378] ... CHAINHASH_SIZE: 32768
[ 0.001391] memory used by lock dependency info: 5167 kB
[ 0.001404] per task-struct memory footprint: 1152 bytes
[ 0.001433] Calibrating delay loop (skipped), value calculated using timer frequency.. 20.00 BogoMIPS (lpj=100000)
[ 0.001455] pid_max: default: 32768 minimum: 301
[ 0.001717] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.001738] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.003465] CPU: Testing write buffer coherency: ok
[ 0.004167] Setting up static identity map for 0x4025f558 - 0x4025f58c
[ 0.007623] devtmpfs: initialized
[ 0.007838] device: 'platform': device_add
[ 0.008108] bus: 'platform': registered
[ 0.008285] bus: 'cpu': registered
[ 0.008309] device: 'cpu': device_add
[ 0.008602] bus: 'container': registered
[ 0.008627] device: 'container': device_add
[ 0.009137] VFP support v0.3: implementor 41 architecture 4 part 30 variant f rev 0
[ 0.009454] bus: 'workqueue': registered
[ 0.009478] device: 'workqueue': device_add
[ 0.010608] pinctrl core: initialized pinctrl subsystem
[ 0.011039] device class 'regulator': registering
[ 0.011251] Registering platform device 'reg-dummy'. Parent at platform
[ 0.011268] device: 'reg-dummy': device_add
[ 0.011322] bus: 'platform': add device reg-dummy
[ 0.011549] bus: 'platform': add driver reg-dummy
[ 0.011600] bus: 'platform': driver_probe_device: matched device reg-dummy with driver reg-dummy
[ 0.011618] bus: 'platform': really_probe: probing driver reg-dummy with device reg-dummy
[ 0.011729] reg-dummy reg-dummy: no default pinctrl state
[ 0.011879] device: 'regulator.0': device_add
[ 0.012687] driver: 'reg-dummy': driver_bound: bound to device 'reg-dummy'
[ 0.012736] bus: 'platform': really_probe: bound device reg-dummy to driver reg-dummy
[ 0.062593] NET: Registered protocol family 16
[ 0.063094] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.063121] device class 'bdi': registering
[ 0.063364] bus: 'platform': add driver renesas_irqc
[ 0.063545] bus: 'platform': add driver sh-pfc
[ 0.063702] bus: 'platform': add driver em_gio
[ 0.063857] device class 'tty': registering
[ 0.063948] device class 'vtconsole': registering
[ 0.064050] device: 'vtcon0': device_add
[ 0.064628] bus: 'i2c': registered
[ 0.064673] bus: 'i2c': add driver dummy
[ 0.064816] i2c-core: driver [dummy] registered
[ 0.065398] device: 'f1001000.interrupt-controller': device_add
[ 0.065460] bus: 'platform': add device f1001000.interrupt-controller
[ 0.065601] platform f1001000.interrupt-controller: pm_clk_notify() 1
[ 0.065969] device: 'e6050000.gpio': device_add
[ 0.066029] bus: 'platform': add device e6050000.gpio
[ 0.066140] platform e6050000.gpio: pm_clk_notify() 1
[ 0.066508] device: 'e6051000.gpio': device_add
[ 0.066579] bus: 'platform': add device e6051000.gpio
[ 0.066690] platform e6051000.gpio: pm_clk_notify() 1
[ 0.067055] device: 'e6052000.gpio': device_add
[ 0.067116] bus: 'platform': add device e6052000.gpio
[ 0.067227] platform e6052000.gpio: pm_clk_notify() 1
[ 0.067594] device: 'e6053000.gpio': device_add
[ 0.067657] bus: 'platform': add device e6053000.gpio
[ 0.067768] platform e6053000.gpio: pm_clk_notify() 1
[ 0.068156] device: 'e6054000.gpio': device_add
[ 0.068216] bus: 'platform': add device e6054000.gpio
[ 0.068327] platform e6054000.gpio: pm_clk_notify() 1
[ 0.068711] device: 'e6055000.gpio': device_add
[ 0.068772] bus: 'platform': add device e6055000.gpio
[ 0.068883] platform e6055000.gpio: pm_clk_notify() 1
[ 0.069287] device: 'e61f0000.thermal': device_add
[ 0.069348] bus: 'platform': add device e61f0000.thermal
[ 0.069460] platform e61f0000.thermal: pm_clk_notify() 1
[ 0.069991] device: 'timer': device_add
[ 0.070050] bus: 'platform': add device timer
[ 0.070161] platform timer: pm_clk_notify() 1
[ 0.070627] device: 'ffca0000.timer': device_add
[ 0.070698] bus: 'platform': add device ffca0000.timer
[ 0.070809] platform ffca0000.timer: pm_clk_notify() 1
[ 0.071544] device: 'e61c0000.interrupt-controller': device_add
[ 0.071606] bus: 'platform': add device e61c0000.interrupt-controller
[ 0.071720] platform e61c0000.interrupt-controller: pm_clk_notify() 1
[ 0.071810] bus: 'platform': driver_probe_device: matched device e61c0000.interrupt-controller with driver renesas_irqc
[ 0.071828] bus: 'platform': really_probe: probing driver renesas_irqc with device e61c0000.interrupt-controller
[ 0.071878] renesas_irqc e61c0000.interrupt-controller: no default pinctrl state
[ 0.071914] renesas_irqc e61c0000.interrupt-controller: pm_clk_notify() 4
[ 0.072314] renesas_irqc e61c0000.interrupt-controller: driving 4 irqs
[ 0.072331] driver: 'renesas_irqc': driver_bound: bound to device 'e61c0000.interrupt-controller'
[ 0.072360] renesas_irqc e61c0000.interrupt-controller: pm_clk_notify() 5
[ 0.072378] bus: 'platform': really_probe: bound device e61c0000.interrupt-controller to driver renesas_irqc
[ 0.074424] device: 'e6700000.dma-controller': device_add
[ 0.074485] bus: 'platform': add device e6700000.dma-controller
[ 0.074598] platform e6700000.dma-controller: pm_clk_notify() 1
[ 0.076734] device: 'e6720000.dma-controller': device_add
[ 0.076796] bus: 'platform': add device e6720000.dma-controller
[ 0.076909] platform e6720000.dma-controller: pm_clk_notify() 1
[ 0.078777] device: 'ec700000.dma-controller': device_add
[ 0.078838] bus: 'platform': add device ec700000.dma-controller
[ 0.078951] platform ec700000.dma-controller: pm_clk_notify() 1
[ 0.080856] device: 'ec720000.dma-controller': device_add
[ 0.080918] bus: 'platform': add device ec720000.dma-controller
[ 0.081031] platform ec720000.dma-controller: pm_clk_notify() 1
[ 0.081254] device: 'ec740000.dma-controller': device_add
[ 0.081316] bus: 'platform': add device ec740000.dma-controller
[ 0.081439] platform ec740000.dma-controller: pm_clk_notify() 1
[ 0.081847] device: 'e6500000.i2c': device_add
[ 0.081908] bus: 'platform': add device e6500000.i2c
[ 0.082031] platform e6500000.i2c: pm_clk_notify() 1
[ 0.082411] device: 'e6510000.i2c': device_add
[ 0.082472] bus: 'platform': add device e6510000.i2c
[ 0.082584] platform e6510000.i2c: pm_clk_notify() 1
[ 0.082986] device: 'e60b0000.i2c': device_add
[ 0.083047] bus: 'platform': add device e60b0000.i2c
[ 0.083158] platform e60b0000.i2c: pm_clk_notify() 1
[ 0.083540] device: 'ee220000.mmc': device_add
[ 0.083601] bus: 'platform': add device ee220000.mmc
[ 0.083713] platform ee220000.mmc: pm_clk_notify() 1
[ 0.083939] device: 'e6060000.pfc': device_add
[ 0.084000] bus: 'platform': add device e6060000.pfc
[ 0.084112] platform e6060000.pfc: pm_clk_notify() 1
[ 0.084203] bus: 'platform': driver_probe_device: matched device e6060000.pfc with driver sh-pfc
[ 0.084220] bus: 'platform': really_probe: probing driver sh-pfc with device e6060000.pfc
[ 0.084264] sh-pfc e6060000.pfc: no default pinctrl state
[ 0.084297] sh-pfc e6060000.pfc: pm_clk_notify() 4
[ 0.085304] sh-pfc e6060000.pfc: r8a77900_pfc support registered
[ 0.085321] driver: 'sh-pfc': driver_bound: bound to device 'e6060000.pfc'
[ 0.085348] sh-pfc e6060000.pfc: pm_clk_notify() 5
[ 0.085365] bus: 'platform': really_probe: bound device e6060000.pfc to driver sh-pfc
[ 0.085649] device: 'ee100000.sd': device_add
[ 0.085710] bus: 'platform': add device ee100000.sd
[ 0.085822] platform ee100000.sd: pm_clk_notify() 1
[ 0.086190] device: 'ee140000.sd': device_add
[ 0.086251] bus: 'platform': add device ee140000.sd
[ 0.086374] platform ee140000.sd: pm_clk_notify() 1
[ 0.086740] device: 'e6c40000.serial': device_add
[ 0.086801] bus: 'platform': add device e6c40000.serial
[ 0.086913] platform e6c40000.serial: pm_clk_notify() 1
[ 0.087281] device: 'e6c50000.serial': device_add
[ 0.087342] bus: 'platform': add device e6c50000.serial
[ 0.087454] platform e6c50000.serial: pm_clk_notify() 1
[ 0.087921] device: 'ee700000.ethernet': device_add
[ 0.087983] bus: 'platform': add device ee700000.ethernet
[ 0.088096] platform ee700000.ethernet: pm_clk_notify() 1
[ 0.088471] device: 'ee500000.sata': device_add
[ 0.088532] bus: 'platform': add device ee500000.sata
[ 0.088644] platform ee500000.sata: pm_clk_notify() 1
[ 0.089002] device: 'e6590000.usb': device_add
[ 0.089063] bus: 'platform': add device e6590000.usb
[ 0.089175] platform e6590000.usb: pm_clk_notify() 1
[ 0.089399] device: 'e6590100.usb-phy': device_add
[ 0.089460] bus: 'platform': add device e6590100.usb-phy
[ 0.089573] platform e6590100.usb-phy: pm_clk_notify() 1
[ 0.089969] device: 'e6ef1000.video': device_add
[ 0.090030] bus: 'platform': add device e6ef1000.video
[ 0.090153] platform e6ef1000.video: pm_clk_notify() 1
[ 0.090531] device: 'fe920000.vsp1': device_add
[ 0.090593] bus: 'platform': add device fe920000.vsp1
[ 0.090705] platform fe920000.vsp1: pm_clk_notify() 1
[ 0.091070] device: 'fe928000.vsp1': device_add
[ 0.091133] bus: 'platform': add device fe928000.vsp1
[ 0.091238] platform fe928000.vsp1: pm_clk_notify() 1
[ 0.091593] device: 'fe930000.vsp1': device_add
[ 0.091651] bus: 'platform': add device fe930000.vsp1
[ 0.091757] platform fe930000.vsp1: pm_clk_notify() 1
[ 0.092111] device: 'fe938000.vsp1': device_add
[ 0.092168] bus: 'platform': add device fe938000.vsp1
[ 0.092274] platform fe938000.vsp1: pm_clk_notify() 1
[ 0.092968] device: 'feb00000.display': device_add
[ 0.093026] bus: 'platform': add device feb00000.display
[ 0.093132] platform feb00000.display: pm_clk_notify() 1
[ 0.093496] device: 'e6b10000.spi': device_add
[ 0.093554] bus: 'platform': add device e6b10000.spi
[ 0.093660] platform e6b10000.spi: pm_clk_notify() 1
[ 0.094082] device: 'e6e10000.spi': device_add
[ 0.094139] bus: 'platform': add device e6e10000.spi
[ 0.094257] platform e6e10000.spi: pm_clk_notify() 1
[ 0.094649] device: 'ee000000.usb': device_add
[ 0.094707] bus: 'platform': add device ee000000.usb
[ 0.094813] platform ee000000.usb: pm_clk_notify() 1
[ 0.095225] device: 'ee090000.pci': device_add
[ 0.095283] bus: 'platform': add device ee090000.pci
[ 0.095389] platform ee090000.pci: pm_clk_notify() 1
[ 0.095801] device: 'ee0b0000.pci': device_add
[ 0.095859] bus: 'platform': add device ee0b0000.pci
[ 0.095965] platform ee0b0000.pci: pm_clk_notify() 1
[ 0.096378] device: 'ee0d0000.pci': device_add
[ 0.096435] bus: 'platform': add device ee0d0000.pci
[ 0.096541] platform ee0d0000.pci: pm_clk_notify() 1
[ 0.096921] device: 'ec500000.rcar_sound': device_add
[ 0.096979] bus: 'platform': add device ec500000.rcar_sound
[ 0.097086] platform ec500000.rcar_sound: pm_clk_notify() 1
[ 0.097286] device: 'keyboard': device_add
[ 0.097343] bus: 'platform': add device keyboard
[ 0.097449] platform keyboard: pm_clk_notify() 1
[ 0.097616] device: 'leds': device_add
[ 0.097674] bus: 'platform': add device leds
[ 0.097789] platform leds: pm_clk_notify() 1
[ 0.097952] device: 'fixedregulator@0': device_add
[ 0.098010] bus: 'platform': add device fixedregulator@0
[ 0.098117] platform fixedregulator@0: pm_clk_notify() 1
[ 0.098283] device: 'regulator@1': device_add
[ 0.098341] bus: 'platform': add device regulator@1
[ 0.098447] platform regulator@1: pm_clk_notify() 1
[ 0.098612] device: 'regulator@2': device_add
[ 0.098670] bus: 'platform': add device regulator@2
[ 0.098776] platform regulator@2: pm_clk_notify() 1
[ 0.098941] device: 'regulator@3': device_add
[ 0.098998] bus: 'platform': add device regulator@3
[ 0.099104] platform regulator@3: pm_clk_notify() 1
[ 0.099270] device: 'regulator@4': device_add
[ 0.099328] bus: 'platform': add device regulator@4
[ 0.099434] platform regulator@4: pm_clk_notify() 1
[ 0.099596] device: 'sound': device_add
[ 0.099653] bus: 'platform': add device sound
[ 0.099758] platform sound: pm_clk_notify() 1
[ 0.099953] device: 'vga-encoder': device_add
[ 0.100012] bus: 'platform': add device vga-encoder
[ 0.100128] platform vga-encoder: pm_clk_notify() 1
[ 0.100288] device: 'vga': device_add
[ 0.100345] bus: 'platform': add device vga
[ 0.100452] platform vga: pm_clk_notify() 1
[ 0.100613] device: 'i2cbus@8': device_add
[ 0.100682] bus: 'platform': add device i2cbus@8
[ 0.100788] platform i2cbus@8: pm_clk_notify() 1
[ 0.100920] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[ 0.100935] hw-breakpoint: maximum watchpoint size is 8 bytes.
[ 0.101011] device class 'dma': registering
[ 0.101258] device: 'cpu0': device_add
[ 0.101316] bus: 'cpu': add device cpu0
[ 0.148418] device: 'writeback': device_add
[ 0.148483] bus: 'workqueue': add device writeback
[ 0.148929] bus: 'platform': add driver reg-fixed-voltage
[ 0.149254] bus: 'platform': driver_probe_device: matched device fixedregulator@0 with driver reg-fixed-voltage
[ 0.149272] bus: 'platform': really_probe: probing driver reg-fixed-voltage with device fixedregulator@0
[ 0.149330] reg-fixed-voltage fixedregulator@0: pm_clk_notify() 4
[ 0.149550] device: 'regulator.1': device_add
[ 0.150192] driver: 'reg-fixed-voltage': driver_bound: bound to device 'fixedregulator@0'
[ 0.150221] reg-fixed-voltage fixedregulator@0: pm_clk_notify() 5
[ 0.150239] bus: 'platform': really_probe: bound device fixedregulator@0 to driver reg-fixed-voltage
[ 0.150270] bus: 'platform': driver_probe_device: matched device regulator@1 with driver reg-fixed-voltage
[ 0.150288] bus: 'platform': really_probe: probing driver reg-fixed-voltage with device regulator@1
[ 0.150338] reg-fixed-voltage regulator@1: pm_clk_notify() 4
[ 0.150579] platform regulator@1: Driver reg-fixed-voltage requests probe deferral
[ 0.150601] platform regulator@1: Added to deferred list
[ 0.150638] bus: 'platform': driver_probe_device: matched device regulator@3 with driver reg-fixed-voltage
[ 0.150656] bus: 'platform': really_probe: probing driver reg-fixed-voltage with device regulator@3
[ 0.150707] reg-fixed-voltage regulator@3: pm_clk_notify() 4
[ 0.150916] platform regulator@3: Driver reg-fixed-voltage requests probe deferral
[ 0.150937] platform regulator@3: Added to deferred list
[ 0.151089] bus: 'platform': add driver da9063-regulators
[ 0.151337] bus: 'platform': add driver gpio-regulator
[ 0.151635] bus: 'platform': driver_probe_device: matched device regulator@2 with driver gpio-regulator
[ 0.151653] bus: 'platform': really_probe: probing driver gpio-regulator with device regulator@2
[ 0.151703] gpio-regulator regulator@2: pm_clk_notify() 4
[ 0.151923] gpio-regulator regulator@2: Could not obtain regulator setting GPIOs: -517
[ 0.151998] platform regulator@2: Driver gpio-regulator requests probe deferral
[ 0.152019] platform regulator@2: Added to deferred list
[ 0.152055] bus: 'platform': driver_probe_device: matched device regulator@4 with driver gpio-regulator
[ 0.152073] bus: 'platform': really_probe: probing driver gpio-regulator with device regulator@4
[ 0.152123] gpio-regulator regulator@4: pm_clk_notify() 4
[ 0.152340] gpio-regulator regulator@4: Could not obtain regulator setting GPIOs: -517
[ 0.152414] platform regulator@4: Driver gpio-regulator requests probe deferral
[ 0.152435] platform regulator@4: Added to deferred list
[ 0.152592] device class 'misc': registering
[ 0.152713] device class 'mdio_bus': registering
[ 0.152957] bus: 'mdio_bus': registered
[ 0.152974] bus: 'mdio_bus': add driver Generic PHY
[ 0.153109] bus: 'mdio_bus': add driver Generic 10G PHY
[ 0.153433] bus: 'serio': registered
[ 0.153456] device class 'input': registering
[ 0.153588] bus: 'platform': add driver i2c-sh_mobile
[ 0.153920] bus: 'platform': driver_probe_device: matched device e6500000.i2c with driver i2c-sh_mobile
[ 0.153938] bus: 'platform': really_probe: probing driver i2c-sh_mobile with device e6500000.i2c
[ 0.153989] i2c-sh_mobile e6500000.i2c: pm_clk_notify() 4
[ 0.154164] i2c-sh_mobile e6500000.i2c: Runtime PM disabled, clock forced on.
[ 0.154452] device: 'i2c-4': device_add
[ 0.154596] bus: 'i2c': add device i2c-4
[ 0.154773] i2c i2c-4: adapter [e6500000.i2c] registered
[ 0.154841] i2c i2c-4: of_i2c: walking child nodes
[ 0.154886] i2c-sh_mobile e6500000.i2c: I2C adapter 4, bus speed 100000 Hz
[ 0.154903] driver: 'i2c-sh_mobile': driver_bound: bound to device 'e6500000.i2c'
[ 0.154929] i2c-sh_mobile e6500000.i2c: pm_clk_notify() 5
[ 0.154947] bus: 'platform': really_probe: bound device e6500000.i2c to driver i2c-sh_mobile
[ 0.154993] bus: 'platform': driver_probe_device: matched device e6510000.i2c with driver i2c-sh_mobile
[ 0.155011] bus: 'platform': really_probe: probing driver i2c-sh_mobile with device e6510000.i2c
[ 0.155552] i2c-sh_mobile e6510000.i2c: pm_clk_notify() 4
[ 0.155622] i2c-sh_mobile e6510000.i2c: Runtime PM disabled, clock forced on.
[ 0.155876] device: 'i2c-5': device_add
[ 0.156003] bus: 'i2c': add device i2c-5
[ 0.156134] i2c i2c-5: adapter [e6510000.i2c] registered
[ 0.156200] i2c i2c-5: of_i2c: walking child nodes
[ 0.156232] i2c-sh_mobile e6510000.i2c: I2C adapter 5, bus speed 100000 Hz
[ 0.156248] driver: 'i2c-sh_mobile': driver_bound: bound to device 'e6510000.i2c'
[ 0.156275] i2c-sh_mobile e6510000.i2c: pm_clk_notify() 5
[ 0.156293] bus: 'platform': really_probe: bound device e6510000.i2c to driver i2c-sh_mobile
[ 0.156339] bus: 'platform': driver_probe_device: matched device e60b0000.i2c with driver i2c-sh_mobile
[ 0.156356] bus: 'platform': really_probe: probing driver i2c-sh_mobile with device e60b0000.i2c
[ 0.156848] i2c-sh_mobile e60b0000.i2c: pm_clk_notify() 4
[ 0.156920] i2c-sh_mobile e60b0000.i2c: Runtime PM disabled, clock forced on.
[ 0.157185] device: 'i2c-7': device_add
[ 0.157312] bus: 'i2c': add device i2c-7
[ 0.157443] i2c i2c-7: adapter [e60b0000.i2c] registered
[ 0.157509] i2c i2c-7: of_i2c: walking child nodes
[ 0.157533] i2c i2c-7: of_i2c: register /i2c@e60b0000/regulator@68
[ 0.157574] device: '7-0068': device_add
[ 0.157690] bus: 'i2c': add device 7-0068
[ 0.157790] i2c 7-0068: uevent
[ 0.157842] i2c i2c-7: client [da9210] registered with bus id 7-0068
[ 0.157874] i2c-sh_mobile e60b0000.i2c: I2C adapter 7, bus speed 100000 Hz
[ 0.157891] driver: 'i2c-sh_mobile': driver_bound: bound to device 'e60b0000.i2c'
[ 0.157917] i2c-sh_mobile e60b0000.i2c: pm_clk_notify() 5
[ 0.157935] bus: 'platform': really_probe: bound device e60b0000.i2c to driver i2c-sh_mobile
[ 0.158508] media: Linux media interface: v0.10
[ 0.158698] bus: 'media': registered
[ 0.158721] Linux video capture interface: v2.00
[ 0.158739] device class 'video4linux': registering
[ 0.158832] device class 'watchdog': registering
[ 0.158923] bus: 'platform': add driver sh_cmt
[ 0.159086] bus: 'platform': driver_probe_device: matched device ffca0000.timer with driver sh_cmt
[ 0.159103] bus: 'platform': really_probe: probing driver sh_cmt with device ffca0000.timer
[ 0.159154] sh_cmt ffca0000.timer: pm_clk_notify() 4
[ 0.159224] sh_cmt ffca0000.timer: Runtime PM disabled, clock forced on.
[ 0.159476] sh_cmt ffca0000.timer: ch0: used for clock events
[ 0.159502] sh_cmt ffca0000.timer: ch1: used as clock source
[ 0.159529] driver: 'sh_cmt': driver_bound: bound to device 'ffca0000.timer'
[ 0.159556] sh_cmt ffca0000.timer: pm_clk_notify() 5
[ 0.159573] bus: 'platform': really_probe: bound device ffca0000.timer to driver sh_cmt
[ 0.160119] bus: 'platform': add driver sh_mtu2
[ 0.160554] bus: 'platform': add driver em_sti
[ 0.160984] device class 'sound': registering
[ 0.161223] Advanced Linux Sound Architecture Driver Initialized.
[ 0.161379] device class 'net': registering
[ 0.161567] device: 'lo': device_add
[ 0.163932] Switched to clocksource arch_sys_counter
[ 0.164862] device class 'mem': registering
[ 0.164944] device: 'mem': device_add
[ 0.173284] device: 'kmem': device_add
[ 0.173686] device: 'null': device_add
[ 0.174114] device: 'zero': device_add
[ 0.174513] device: 'full': device_add
[ 0.174922] device: 'random': device_add
[ 0.175381] device: 'urandom': device_add
[ 0.175781] device: 'kmsg': device_add
[ 0.176201] device: 'tty': device_add
[ 0.177447] device: 'console': device_add
[ 0.178264] device: 'tty0': device_add
[ 0.178892] device class 'vc': registering
[ 0.178982] device: 'vcs': device_add
[ 0.179933] device: 'vcsa': device_add
[ 0.180384] device: 'vcs1': device_add
[ 0.180977] device: 'vcsa1': device_add
[ 0.181812] device: 'tty1': device_add
[ 0.182219] device: 'tty2': device_add
[ 0.183009] device: 'tty3': device_add
[ 0.183628] device: 'tty4': device_add
[ 0.184064] device: 'tty5': device_add
[ 0.184905] device: 'tty6': device_add
[ 0.185314] device: 'tty7': device_add
[ 0.185925] device: 'tty8': device_add
[ 0.186716] device: 'tty9': device_add
[ 0.187122] device: 'tty10': device_add
[ 0.187924] device: 'tty11': device_add
[ 0.188534] device: 'tty12': device_add
[ 0.188991] device: 'tty13': device_add
[ 0.189784] device: 'tty14': device_add
[ 0.190192] device: 'tty15': device_add
[ 0.190803] device: 'tty16': device_add
[ 0.191595] device: 'tty17': device_add
[ 0.192014] device: 'tty18': device_add
[ 0.192808] device: 'tty19': device_add
[ 0.193479] device: 'tty20': device_add
[ 0.193888] device: 'tty21': device_add
[ 0.194711] device: 'tty22': device_add
[ 0.195120] device: 'tty23': device_add
[ 0.195722] device: 'tty24': device_add
[ 0.196525] device: 'tty25': device_add
[ 0.196934] device: 'tty26': device_add
[ 0.197775] device: 'tty27': device_add
[ 0.198388] device: 'tty28': device_add
[ 0.198796] device: 'tty29': device_add
[ 0.199590] device: 'tty30': device_add
[ 0.199999] device: 'tty31': device_add
[ 0.200623] device: 'tty32': device_add
[ 0.201416] device: 'tty33': device_add
[ 0.201876] device: 'tty34': device_add
[ 0.202670] device: 'tty35': device_add
[ 0.203281] device: 'tty36': device_add
[ 0.203690] device: 'tty37': device_add
[ 0.204522] device: 'tty38': device_add
[ 0.204943] device: 'tty39': device_add
[ 0.205546] device: 'tty40': device_add
[ 0.206389] device: 'tty41': device_add
[ 0.206799] device: 'tty42': device_add
[ 0.207594] device: 'tty43': device_add
[ 0.208209] device: 'tty44': device_add
[ 0.208630] device: 'tty45': device_add
[ 0.209439] device: 'tty46': device_add
[ 0.209849] device: 'tty47': device_add
[ 0.210502] device: 'tty48': device_add
[ 0.211297] device: 'tty49': device_add
[ 0.211707] device: 'tty50': device_add
[ 0.212502] device: 'tty51': device_add
[ 0.213115] device: 'tty52': device_add
[ 0.213536] device: 'tty53': device_add
[ 0.214361] device: 'tty54': device_add
[ 0.214822] device: 'tty55': device_add
[ 0.215428] device: 'tty56': device_add
[ 0.216234] device: 'tty57': device_add
[ 0.216645] device: 'tty58': device_add
[ 0.217461] device: 'tty59': device_add
[ 0.218085] device: 'tty60': device_add
[ 0.218497] device: 'tty61': device_add
[ 0.219344] device: 'tty62': device_add
[ 0.219756] device: 'tty63': device_add
[ 0.220704] device class 'thermal': registering
[ 0.221176] NET: Registered protocol family 2
[ 0.222523] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[ 0.222975] TCP bind hash table entries: 8192 (order: 6, 294912 bytes)
[ 0.229661] TCP: Hash tables configured (established 8192 bind 8192)
[ 0.229786] TCP: reno registered
[ 0.229820] UDP hash table entries: 512 (order: 3, 40960 bytes)
[ 0.230686] UDP-Lite hash table entries: 512 (order: 3, 40960 bytes)
[ 0.624817] bus: 'platform': add driver arm-pmu
[ 0.626355] bus: 'clocksource': registered
[ 0.626381] device: 'clocksource': device_add
[ 0.626456] device: 'clocksource0': device_add
[ 0.626516] bus: 'clocksource': add device clocksource0
[ 0.626774] bus: 'platform': add driver alarmtimer
[ 0.627027] Registering platform device 'alarmtimer'. Parent at platform
[ 0.627043] device: 'alarmtimer': device_add
[ 0.627105] bus: 'platform': add device alarmtimer
[ 0.627223] platform alarmtimer: pm_clk_notify() 1
[ 0.627307] bus: 'platform': driver_probe_device: matched device alarmtimer with driver alarmtimer
[ 0.627324] bus: 'platform': really_probe: probing driver alarmtimer with device alarmtimer
[ 0.627371] alarmtimer alarmtimer: pm_clk_notify() 4
[ 0.627459] driver: 'alarmtimer': driver_bound: bound to device 'alarmtimer'
[ 0.627486] alarmtimer alarmtimer: pm_clk_notify() 5
[ 0.627503] bus: 'platform': really_probe: bound device alarmtimer to driver alarmtimer
[ 0.627721] bus: 'clockevents': registered
[ 0.627745] device: 'clockevents': device_add
[ 0.627816] device: 'clockevent0': device_add
[ 0.627876] bus: 'clockevents': add device clockevent0
[ 0.628090] futex hash table entries: 256 (order: 1, 11264 bytes)
[ 0.628710] bus: 'event_source': registered
[ 0.628737] device: 'breakpoint': device_add
[ 0.628803] bus: 'event_source': add device breakpoint
[ 0.629042] device: 'software': device_add
[ 0.629118] bus: 'event_source': add device software
[ 0.634101] bus: 'platform': add driver gpio_rcar
[ 0.634184] bus: 'platform': driver_probe_device: matched device e6050000.gpio with driver gpio_rcar
[ 0.634202] bus: 'platform': really_probe: probing driver gpio_rcar with device e6050000.gpio
[ 0.634257] gpio_rcar e6050000.gpio: pm_clk_notify() 4
[ 0.634361] gpio_rcar e6050000.gpio: Runtime PM disabled, clock forced on.
[ 0.635763] gpio_rcar e6050000.gpio: driving 32 GPIOs
[ 0.635780] driver: 'gpio_rcar': driver_bound: bound to device 'e6050000.gpio'
[ 0.635807] gpio_rcar e6050000.gpio: pm_clk_notify() 5
[ 0.635825] bus: 'platform': really_probe: bound device e6050000.gpio to driver gpio_rcar
[ 0.635865] bus: 'platform': driver_probe_device: matched device e6051000.gpio with driver gpio_rcar
[ 0.635882] bus: 'platform': really_probe: probing driver gpio_rcar with device e6051000.gpio
[ 0.635934] gpio_rcar e6051000.gpio: pm_clk_notify() 4
[ 0.636005] gpio_rcar e6051000.gpio: Runtime PM disabled, clock forced on.
[ 0.637302] gpio_rcar e6051000.gpio: driving 32 GPIOs
[ 0.637318] driver: 'gpio_rcar': driver_bound: bound to device 'e6051000.gpio'
[ 0.637345] gpio_rcar e6051000.gpio: pm_clk_notify() 5
[ 0.637362] bus: 'platform': really_probe: bound device e6051000.gpio to driver gpio_rcar
[ 0.637401] bus: 'platform': driver_probe_device: matched device e6052000.gpio with driver gpio_rcar
[ 0.637419] bus: 'platform': really_probe: probing driver gpio_rcar with device e6052000.gpio
[ 0.637470] gpio_rcar e6052000.gpio: pm_clk_notify() 4
[ 0.637539] gpio_rcar e6052000.gpio: Runtime PM disabled, clock forced on.
[ 0.638843] gpio_rcar e6052000.gpio: driving 32 GPIOs
[ 0.638859] driver: 'gpio_rcar': driver_bound: bound to device 'e6052000.gpio'
[ 0.638886] gpio_rcar e6052000.gpio: pm_clk_notify() 5
[ 0.638903] bus: 'platform': really_probe: bound device e6052000.gpio to driver gpio_rcar
[ 0.638943] bus: 'platform': driver_probe_device: matched device e6053000.gpio with driver gpio_rcar
[ 0.638960] bus: 'platform': really_probe: probing driver gpio_rcar with device e6053000.gpio
[ 0.639011] gpio_rcar e6053000.gpio: pm_clk_notify() 4
[ 0.639081] gpio_rcar e6053000.gpio: Runtime PM disabled, clock forced on.
[ 0.640415] gpio_rcar e6053000.gpio: driving 32 GPIOs
[ 0.640431] driver: 'gpio_rcar': driver_bound: bound to device 'e6053000.gpio'
[ 0.640457] gpio_rcar e6053000.gpio: pm_clk_notify() 5
[ 0.640475] bus: 'platform': really_probe: bound device e6053000.gpio to driver gpio_rcar
[ 0.640514] bus: 'platform': driver_probe_device: matched device e6054000.gpio with driver gpio_rcar
[ 0.640532] bus: 'platform': really_probe: probing driver gpio_rcar with device e6054000.gpio
[ 0.640584] gpio_rcar e6054000.gpio: pm_clk_notify() 4
[ 0.640653] gpio_rcar e6054000.gpio: Runtime PM disabled, clock forced on.
[ 0.641992] gpio_rcar e6054000.gpio: driving 32 GPIOs
[ 0.642008] driver: 'gpio_rcar': driver_bound: bound to device 'e6054000.gpio'
[ 0.642034] gpio_rcar e6054000.gpio: pm_clk_notify() 5
[ 0.642052] bus: 'platform': really_probe: bound device e6054000.gpio to driver gpio_rcar
[ 0.642091] bus: 'platform': driver_probe_device: matched device e6055000.gpio with driver gpio_rcar
[ 0.642109] bus: 'platform': really_probe: probing driver gpio_rcar with device e6055000.gpio
[ 0.642161] gpio_rcar e6055000.gpio: pm_clk_notify() 4
[ 0.642230] gpio_rcar e6055000.gpio: Runtime PM disabled, clock forced on.
[ 0.643566] gpio_rcar e6055000.gpio: driving 32 GPIOs
[ 0.643581] driver: 'gpio_rcar': driver_bound: bound to device 'e6055000.gpio'
[ 0.643608] gpio_rcar e6055000.gpio: pm_clk_notify() 5
[ 0.643625] bus: 'platform': really_probe: bound device e6055000.gpio to driver gpio_rcar
[ 0.644282] bus: 'platform': add driver shdma-of
[ 0.644724] bus: 'platform': add driver sh-dma-engine
[ 0.645234] bus: 'platform': remove driver sh-dma-engine
[ 0.645296] driver: 'sh-dma-engine': driver_release
[ 0.645327] bus: 'i2c': add driver da9210
[ 0.645389] bus: 'i2c': driver_probe_device: matched device 7-0068 with driver da9210
[ 0.645406] bus: 'i2c': really_probe: probing driver da9210 with device 7-0068
[ 0.645517] da9210 7-0068: probe
[ 0.645938] i2c i2c-7: master_xfer[0] W, addr=0x68, len=2
[ 0.647496] i2c i2c-7: master_xfer[0] W, addr=0x68, len=2
[ 0.647978] device: 'regulator.2': device_add
[ 0.648282] i2c i2c-7: master_xfer[0] W, addr=0x68, len=1
[ 0.648304] i2c i2c-7: master_xfer[1] R, addr=0x68, len=1
[ 0.649311] i2c i2c-7: master_xfer[0] W, addr=0x68, len=1
[ 0.649333] i2c i2c-7: master_xfer[1] R, addr=0x68, len=1
[ 0.649986] i2c i2c-7: master_xfer[0] W, addr=0x68, len=1
[ 0.650008] i2c i2c-7: master_xfer[1] R, addr=0x68, len=1
[ 0.650665] i2c i2c-7: master_xfer[0] W, addr=0x68, len=1
[ 0.650687] i2c i2c-7: master_xfer[1] R, addr=0x68, len=1
[ 0.651496] driver: 'da9210': driver_bound: bound to device '7-0068'
[ 0.651518] bus: 'i2c': really_probe: bound device 7-0068 to driver da9210
[ 0.651628] i2c-core: driver [da9210] registered
[ 0.651718] device: 'ptmx': device_add
[ 0.652144] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[ 0.652236] Registering platform device 'serial8250'. Parent at platform
[ 0.652253] device: 'serial8250': device_add
[ 0.652311] bus: 'platform': add device serial8250
[ 0.652418] platform serial8250: pm_clk_notify() 1
[ 0.652634] device: 'ttyS0': device_add
[ 0.653818] device: 'ttyS1': device_add
[ 0.654661] device: 'ttyS2': device_add
[ 0.655472] device: 'ttyS3': device_add
[ 0.656893] bus: 'platform': add driver serial8250
[ 0.657054] bus: 'platform': driver_probe_device: matched device serial8250 with driver serial8250
[ 0.657071] bus: 'platform': really_probe: probing driver serial8250 with device serial8250
[ 0.657115] serial8250 serial8250: pm_clk_notify() 4
[ 0.657199] driver: 'serial8250': driver_bound: bound to device 'serial8250'
[ 0.657226] serial8250 serial8250: pm_clk_notify() 5
[ 0.657243] bus: 'platform': really_probe: bound device serial8250 to driver serial8250
[ 0.657369] bus: 'platform': add driver serial8250-em
[ 0.657804] SuperH (H)SCI(F) driver initialized
[ 0.658040] bus: 'platform': add driver sh-sci
[ 0.658337] bus: 'platform': driver_probe_device: matched device e6c40000.serial with driver sh-sci
[ 0.658354] bus: 'platform': really_probe: probing driver sh-sci with device e6c40000.serial
[ 0.659023] sh-sci e6c40000.serial: pm_clk_notify() 4
[ 0.659097] sh-sci e6c40000.serial: Runtime PM disabled, clock forced on.
[ 0.659456] e6c40000.serial: ttySC0 at MMIO 0xe6c40000 (irq = 100, base_baud = 0) is a scifa
[ 3.939664] console [ttySC0] enabled
[ 3.943250] device: 'ttySC0': device_add
[ 3.949740] driver: 'sh-sci': driver_bound: bound to device 'e6c40000.serial'
[ 3.956855] sh-sci e6c40000.serial: pm_clk_notify() 5
[ 3.961875] bus: 'platform': really_probe: bound device e6c40000.serial to driver sh-sci
[ 3.969945] bus: 'platform': driver_probe_device: matched device e6c50000.serial with driver sh-sci
[ 3.978943] bus: 'platform': really_probe: probing driver sh-sci with device e6c50000.serial
[ 3.987979] sh-sci e6c50000.serial: pm_clk_notify() 4
[ 3.993053] sh-sci e6c50000.serial: Runtime PM disabled, clock forced on.
[ 4.000116] e6c50000.serial: ttySC1 at MMIO 0xe6c50000 (irq = 101, base_baud = 0) is a scifa
[ 4.008560] device: 'ttySC1': device_add
[ 4.013505] driver: 'sh-sci': driver_bound: bound to device 'e6c50000.serial'
[ 4.020617] sh-sci e6c50000.serial: pm_clk_notify() 5
[ 4.025652] bus: 'platform': really_probe: bound device e6c50000.serial to driver sh-sci
[ 4.034237] bus: 'i2c': add driver at24
[ 4.038173] i2c-core: driver [at24] registered
[ 4.042613] bus: 'i2c': add driver da9063
[ 4.046738] i2c-core: driver [da9063] registered
[ 4.051379] bus: 'platform': add driver sh-eth
[ 4.056297] bus: 'platform': driver_probe_device: matched device ee700000.ethernet with driver sh-eth
[ 4.065468] bus: 'platform': really_probe: probing driver sh-eth with device ee700000.ethernet
[ 4.075389] sh-eth ee700000.ethernet: pm_clk_notify() 4
[ 4.080636] sh-eth ee700000.ethernet: Runtime PM disabled, clock forced on.
[ 4.087790] device: 'ee700000.etherne': device_add
[ 4.092867] libphy: sh_mii: probed
[ 4.096972] device: 'ee700000.etherne:01': device_add
[ 4.102040] bus: 'mdio_bus': add device ee700000.etherne:01
[ 4.107851] device: 'eth0': device_add
[ 4.113709] sh-eth ee700000.ethernet eth0: Base address at 0xee700000, 2e:09:0a:00:6e:2e, IRQ 102.
[ 4.122622] driver: 'sh-eth': driver_bound: bound to device 'ee700000.ethernet'
[ 4.129907] sh-eth ee700000.ethernet: pm_clk_notify() 5
[ 4.135113] bus: 'platform': really_probe: bound device ee700000.ethernet to driver sh-eth
[ 4.143972] device: 'mice': device_add
[ 4.150713] mousedev: PS/2 mouse device common for all mice
[ 4.156276] bus: 'serio': add driver atkbd
[ 4.160607] bus: 'i2c': add driver st1232-ts
[ 4.164994] i2c-core: driver [st1232-ts] registered
[ 4.169866] bus: 'platform': add driver i2c-riic
[ 4.174894] bus: 'platform': add driver i2c-rcar
[ 4.180397] bus: 'platform': add driver i2c-demux-pinctrl
[ 4.186082] bus: 'platform': driver_probe_device: matched device i2cbus@8 with driver i2c-demux-pinctrl
[ 4.195425] bus: 'platform': really_probe: probing driver i2c-demux-pinctrl with device i2cbus@8
[ 4.204200] i2c-demux-pinctrl i2cbus@8: pm_clk_notify() 4
[ 4.209674] of_changeset: applying...
[ 4.213317] of/cset<eeb4e840> UPDATE_PROPERTY /i2c@e6520000/status
[ 4.219622] of_changeset: applied, emitting notifiers.
[ 4.224744] of/notify UPDATE_PROPERTY /i2c@e6520000:status
[ 4.230707] device: 'e6520000.i2c': device_add
[ 4.235244] bus: 'platform': add device e6520000.i2c
[ 4.240309] platform e6520000.i2c: pm_clk_notify() 1
[ 4.245445] bus: 'platform': driver_probe_device: matched device e6520000.i2c with driver i2c-sh_mobile
[ 4.254788] bus: 'platform': really_probe: probing driver i2c-sh_mobile with device e6520000.i2c
[ 4.263719] i2c-sh_mobile e6520000.i2c: pm_clk_notify() 4
[ 4.269174] i2c-sh_mobile e6520000.i2c: Runtime PM disabled, clock forced on.
[ 4.276660] device: 'i2c-6': device_add
[ 4.280607] bus: 'i2c': add device i2c-6
[ 4.284690] i2c i2c-6: adapter [e6520000.i2c] registered
[ 4.290029] i2c i2c-6: of_i2c: walking child nodes
[ 4.294839] i2c-sh_mobile e6520000.i2c: I2C adapter 6, bus speed 100000 Hz
[ 4.301668] driver: 'i2c-sh_mobile': driver_bound: bound to device 'e6520000.i2c'
[ 4.309131] i2c-sh_mobile e6520000.i2c: pm_clk_notify() 5
[ 4.314511] bus: 'platform': really_probe: bound device e6520000.i2c to driver i2c-sh_mobile
[ 4.322934] of_changeset: notifiers sent.
[ 4.327483] device: 'i2c-8': device_add
[ 4.331408] bus: 'i2c': add device i2c-8
[ 4.335441] i2c i2c-8: adapter [i2c-6-mux (chan_id 0)] registered
[ 4.341545] i2c i2c-8: of_i2c: walking child nodes
[ 4.346328] i2c i2c-8: of_i2c: register /i2cbus@8/i2c8@0/sound-codec@12
[ 4.352929] device: '8-0012': device_add
[ 4.356932] bus: 'i2c': add device 8-0012
[ 4.361011] i2c 8-0012: uevent
[ 4.364115] i2c i2c-8: client [ak4643] registered with bus id 8-0012
[ 4.370435] i2c i2c-8: of_i2c: register /i2cbus@8/i2c8@0/composite-in@20
[ 4.377134] device: '8-0020': device_add
[ 4.381124] bus: 'i2c': add device 8-0020
[ 4.385204] i2c 8-0020: uevent
[ 4.388292] i2c i2c-8: client [adv7180] registered with bus id 8-0020
[ 4.394777] i2c i2c-6: Added multiplexed i2c bus 8
[ 4.399561] driver: 'i2c-demux-pinctrl': driver_bound: bound to device 'i2cbus@8'
[ 4.407018] i2c-demux-pinctrl i2cbus@8: pm_clk_notify() 5
[ 4.412383] bus: 'platform': really_probe: bound device i2cbus@8 to driver i2c-demux-pinctrl
[ 4.420897] bus: 'platform': add driver i2c-mux-gpio
[ 4.426261] bus: 'i2c': add driver i2c-slave-eeprom
[ 4.431252] i2c-core: driver [i2c-slave-eeprom] registered
[ 4.436747] bus: 'i2c': add driver adv7180
[ 4.440869] bus: 'i2c': driver_probe_device: matched device 8-0020 with driver adv7180
[ 4.448746] bus: 'i2c': really_probe: probing driver adv7180 with device 8-0020
[ 4.456108] adv7180 8-0020: probe
[ 4.459412] adv7180 8-0020: chip found @ 0x20 (i2c-6-mux (chan_id 0))
[ 4.466015] i2c i2c-8: master_xfer[0] W, addr=0x20, len=2
[ 4.475297] i2c i2c-8: master_xfer[0] W, addr=0x20, len=2
[ 4.481033] i2c i2c-8: master_xfer[0] W, addr=0x20, len=2
[ 4.486776] i2c i2c-8: master_xfer[0] W, addr=0x20, len=2
[ 4.492509] i2c i2c-8: master_xfer[0] W, addr=0x20, len=2
[ 4.498256] i2c i2c-8: master_xfer[0] W, addr=0x20, len=2
[ 4.503983] i2c i2c-8: master_xfer[0] W, addr=0x20, len=2
[ 4.509714] i2c i2c-8: master_xfer[0] W, addr=0x20, len=2
[ 4.515457] i2c i2c-8: master_xfer[0] W, addr=0x20, len=2
[ 4.521194] i2c i2c-8: master_xfer[0] W, addr=0x20, len=2
[ 4.526937] i2c i2c-8: master_xfer[0] W, addr=0x20, len=2
[ 4.543983] i2c i2c-8: master_xfer[0] W, addr=0x20, len=2
[ 4.549710] i2c i2c-8: master_xfer[0] W, addr=0x20, len=2
[ 4.555449] i2c i2c-8: master_xfer[0] W, addr=0x20, len=2
[ 4.561176] i2c i2c-8: master_xfer[0] W, addr=0x20, len=1
[ 4.566560] i2c i2c-8: master_xfer[1] R, addr=0x20, len=1
[ 4.572477] driver: 'adv7180': driver_bound: bound to device '8-0020'
[ 4.578895] bus: 'i2c': really_probe: bound device 8-0020 to driver adv7180
[ 4.585921] i2c-core: driver [adv7180] registered
[ 4.590631] bus: 'platform': add driver rcar_thermal
[ 4.595664] bus: 'platform': driver_probe_device: matched device e61f0000.thermal with driver rcar_thermal
[ 4.605266] bus: 'platform': really_probe: probing driver rcar_thermal with device e61f0000.thermal
[ 4.614301] rcar_thermal e61f0000.thermal: pm_clk_notify() 4
[ 4.619982] rcar_thermal e61f0000.thermal: Runtime PM disabled, clock forced on.
[ 4.628174] device: 'thermal_zone0': device_add
[ 4.633221] rcar_thermal e61f0000.thermal: 1 sensor probed
[ 4.638685] driver: 'rcar_thermal': driver_bound: bound to device 'e61f0000.thermal'
[ 4.646400] rcar_thermal e61f0000.thermal: pm_clk_notify() 5
[ 4.652024] bus: 'platform': really_probe: bound device e61f0000.thermal to driver rcar_thermal
[ 4.661037] bus: 'platform': add driver da9063-watchdog
[ 4.666653] bus: 'hid': registered
[ 4.670192] device: 'timer': device_add
[ 4.676483] Registering platform device 'snd-soc-dummy'. Parent at platform
[ 4.683398] device: 'snd-soc-dummy': device_add
[ 4.687959] bus: 'platform': add device snd-soc-dummy
[ 4.693071] platform snd-soc-dummy: pm_clk_notify() 1
[ 4.698201] bus: 'platform': add driver snd-soc-dummy
[ 4.703368] bus: 'platform': driver_probe_device: matched device snd-soc-dummy with driver snd-soc-dummy
[ 4.712797] bus: 'platform': really_probe: probing driver snd-soc-dummy with device snd-soc-dummy
[ 4.721650] snd-soc-dummy snd-soc-dummy: pm_clk_notify() 4
[ 4.727268] driver: 'snd-soc-dummy': driver_bound: bound to device 'snd-soc-dummy'
[ 4.734812] snd-soc-dummy snd-soc-dummy: pm_clk_notify() 5
[ 4.740264] bus: 'platform': really_probe: bound device snd-soc-dummy to driver snd-soc-dummy
[ 4.748842] bus: 'platform': add driver soc-audio
[ 4.753761] bus: 'i2c': add driver ak4642-codec
[ 4.758339] bus: 'i2c': driver_probe_device: matched device 8-0012 with driver ak4642-codec
[ 4.766648] bus: 'i2c': really_probe: probing driver ak4642-codec with device 8-0012
[ 4.774442] ak4642-codec 8-0012: probe
[ 4.778407] driver: 'ak4642-codec': driver_bound: bound to device '8-0012'
[ 4.785256] bus: 'i2c': really_probe: bound device 8-0012 to driver ak4642-codec
[ 4.792702] i2c-core: driver [ak4642-codec] registered
[ 4.798235] TCP: cubic registered
[ 4.801853] device: 'cpu_dma_latency': device_add
[ 4.808670] device: 'network_latency': device_add
[ 4.814014] device: 'network_throughput': device_add
[ 4.819618] device: 'memory_bandwidth': device_add
[ 4.825776] platform regulator@1: Retrying from deferred list
[ 4.831523] bus: 'platform': driver_probe_device: matched device regulator@1 with driver reg-fixed-voltage
[ 4.841126] bus: 'platform': really_probe: probing driver reg-fixed-voltage with device regulator@1
[ 4.850188] reg-fixed-voltage regulator@1: pm_clk_notify() 4
[ 4.856132] device: 'regulator.3': device_add
[ 4.861632] driver: 'reg-fixed-voltage': driver_bound: bound to device 'regulator@1'
[ 4.869382] reg-fixed-voltage regulator@1: pm_clk_notify() 5
[ 4.875020] bus: 'platform': really_probe: bound device regulator@1 to driver reg-fixed-voltage
[ 4.883688] platform regulator@3: Retrying from deferred list
[ 4.889441] bus: 'platform': driver_probe_device: matched device regulator@3 with driver reg-fixed-voltage
[ 4.899043] bus: 'platform': really_probe: probing driver reg-fixed-voltage with device regulator@3
[ 4.908084] reg-fixed-voltage regulator@3: pm_clk_notify() 4
[ 4.913927] device: 'regulator.4': device_add
[ 4.919012] driver: 'reg-fixed-voltage': driver_bound: bound to device 'regulator@3'
[ 4.926734] reg-fixed-voltage regulator@3: pm_clk_notify() 5
[ 4.932359] bus: 'platform': really_probe: bound device regulator@3 to driver reg-fixed-voltage
[ 4.941030] platform regulator@2: Retrying from deferred list
[ 4.946791] bus: 'platform': driver_probe_device: matched device regulator@2 with driver gpio-regulator
[ 4.956134] bus: 'platform': really_probe: probing driver gpio-regulator with device regulator@2
[ 4.964915] gpio-regulator regulator@2: pm_clk_notify() 4
[ 4.970654] device: 'regulator.5': device_add
[ 4.975809] driver: 'gpio-regulator': driver_bound: bound to device 'regulator@2'
[ 4.983259] gpio-regulator regulator@2: pm_clk_notify() 5
[ 4.988638] bus: 'platform': really_probe: bound device regulator@2 to driver gpio-regulator
[ 4.997051] platform regulator@4: Retrying from deferred list
[ 5.002798] bus: 'platform': driver_probe_device: matched device regulator@4 with driver gpio-regulator
[ 5.012142] bus: 'platform': really_probe: probing driver gpio-regulator with device regulator@4
[ 5.020924] gpio-regulator regulator@4: pm_clk_notify() 4
[ 5.026651] device: 'regulator.6': device_add
[ 5.031687] driver: 'gpio-regulator': driver_bound: bound to device 'regulator@4'
[ 5.039151] gpio-regulator regulator@4: pm_clk_notify() 5
[ 5.044530] bus: 'platform': really_probe: bound device regulator@4 to driver gpio-regulator
[ 5.054379] bus: 'platform': add driver gpio-keys
[ 5.059318] bus: 'platform': driver_probe_device: matched device keyboard with driver gpio-keys
[ 5.067972] bus: 'platform': really_probe: probing driver gpio-keys with device keyboard
[ 5.076056] gpio-keys keyboard: pm_clk_notify() 4
[ 5.081623] device: 'input0': device_add
[ 5.086295] input: keyboard as /devices/platform/keyboard/input/input0
[ 5.092953] driver: 'gpio-keys': driver_bound: bound to device 'keyboard'
[ 5.099729] gpio-keys keyboard: pm_clk_notify() 5
[ 5.104419] bus: 'platform': really_probe: bound device keyboard to driver gpio-keys
[ 5.112285] of_changeset: applying...
[ 5.115941] of/cset<ee940440> UPDATE_PROPERTY /i2c@e60b0000/status
[ 5.122157] of_changeset: applied, emitting notifiers.
[ 5.127278] of/notify UPDATE_PROPERTY /i2c@e60b0000:status
[ 5.132779] i2c-sh_mobile e60b0000.i2c: pm_clk_notify() 2
[ 5.138469] bus: 'platform': remove device e60b0000.i2c
[ 5.143728] i2c-sh_mobile e60b0000.i2c: pm_clk_notify() 6
[ 5.149197] device: '7-0068': device_unregister
[ 5.153977] bus: 'i2c': remove device 7-0068
[ 5.158660] device: 'regulator.2': device_unregister
[ 5.165811] i2c 7-0068: uevent
[ 5.168980] i2c i2c-7: adapter [e60b0000.i2c] unregistered
[ 5.174446] device: 'i2c-7': device_unregister
[ 5.179041] bus: 'i2c': remove device i2c-7
[ 5.183555] platform e60b0000.i2c: pm_clk_notify() 7
[ 5.188581] platform e60b0000.i2c: Runtime PM disabled, clock forced off.
[ 5.195353] platform e60b0000.i2c: pm_clk_notify() 3
[ 5.200414] Unable to handle kernel NULL pointer dereference at virtual address 00000018
[ 5.208461] pgd = c0004000
[ 5.211151] [00000018] *pgd=00000000
[ 5.214732] Internal error: Oops: 5 [#1] ARM
[ 5.218983] CPU: 0 PID: 1 Comm: swapper Tainted: G W 4.0.0-rc4-00009-gcb55587ebc4047 #90
[ 5.228136] Hardware name: Generic R8A7790 (Flattened Device Tree)
[ 5.234275] task: ee84d340 ti: ee84e000 task.ti: ee84e000
[ 5.239643] PC is at release_resource+0x20/0x68
[ 5.244157] LR is at _raw_write_lock+0x3c/0x44
[ 5.248577] pc : [<c002417c>] lr : [<c025f0e0>] psr: a0000113
[ 5.248577] sp : ee84fcd8 ip : ee84fcb0 fp : ee84fcec
[ 5.259975] r10: 00000000 r9 : c03de2c0 r8 : c03d5694
[ 5.265166] r7 : ee84fdf4 r6 : 0000001c r5 : 00000000 r4 : ee8efd00
[ 5.271650] r3 : 00000000 r2 : 00000018 r1 : 00000009 r0 : c03c7cd8
[ 5.278136] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel
[ 5.285395] Control: 10c5347d Table: 40004059 DAC: 00000015
[ 5.291102] Process swapper (pid: 1, stack limit = 0xee84e208)
[ 5.296896] Stack: (0xee84fcd8 to 0xee850000)
[ 5.301228] fcc0: 00000000 ee8f3e00
[ 5.309359] fce0: ee84fd0c ee84fcf0 c01604fc c0024168 c03d39a0 ee8f3e00 00000000 00000005
[ 5.317491] fd00: ee84fd24 ee84fd10 c016054c c0160494 c03d39a0 ee8f3e10 ee84fd3c ee84fd28
[ 5.325624] fd20: c01aad54 c0160544 ee8f3e34 ee8f3e00 ee84fd64 ee84fd40 c01ab3f8 c01aad08
[ 5.333755] fd40: 00000000 00000000 c0b9ba86 ffffffff 00000000 00000005 ee84fd8c ee84fd68
[ 5.341887] fd60: c00389b0 c01ab338 ffffffff c03d7b98 c03d7ba4 ffffffff ee84fdf4 00000005
[ 5.350018] fd80: ee84fdbc ee84fd90 c0038c78 c0038974 00000000 c004eed4 c0311ab7 ee84fdf4
[ 5.358150] fda0: 00000005 ee84fe88 c0340d2c c0340d2c ee84fdd4 ee84fdc0 c0038cb0 c0038c38
[ 5.366282] fdc0: 00000000 c0259a44 ee84fdec ee84fdd8 c01ab868 c0038c9c ee940440 ee84fe88
[ 5.374414] fde0: ee84fe0c ee84fdf0 c01aba70 c01ab7ec 00000001 eefd18b8 ee84fe90 eefd1b1c
[ 5.382546] fe00: ee84fe4c ee84fe10 c01abafc c01aba38 ee84fe3c ee84fe20 c025d420 c0046dc0
[ 5.390678] fe20: 00000000 ee84fe88 ee84fe88 c0340d2c ee84fe4c ee84fe40 c025d454 ee940440
[ 5.398810] fe40: ee84fe84 ee84fe50 c01ac408 c01aba84 ee84fe84 ee84fe60 c01ac5b4 eefd18b8
[ 5.406941] fe60: c03356c0 00000000 c0340d2c eefd18b8 c03356c0 00000000 ee84fee4 ee84fe88
[ 5.415073] fe80: c0335744 c01ac370 ee940440 ee940440 c02fc41b 00000009 c0300520 eefd1b5c
[ 5.423203] fea0: 00000000 00000000 c02fc41b 00000124 c0baab34 00000000 00000000 00000009
[ 5.431334] fec0: 00000000 c01a848c 00000000 00000000 00000000 ee940440 ee84ff5c ee84fee8
[ 5.439466] fee0: c0321dd8 c03356cc ee84ff0c ee84fef8 c025ed5c c0046dc0 ee84ff00 ee84ff08
[ 5.447599] ff00: c0321604 c010ae7c ef7fcce4 ef7fcce1 ee84ff5c ee84ff20 c0037790 c03215f4
[ 5.455728] ff20: 00000043 00000007 00000007 00000044 ee84ff5c 00000007 00000007 00000044
[ 5.463860] ff40: c034155c c034789c c03de2c0 c03de2c0 ee84ff94 ee84ff60 c0321f88 c0321cdc
[ 5.471990] ff60: 00000007 00000007 c03215e8 00000000 c03de2c0 c0257c94 00000000 00000000
[ 5.480121] ff80: 00000000 00000000 ee84ffac ee84ff98 c0257ca8 c0321e98 00000000 00000000
[ 5.488251] ffa0: 00000000 ee84ffb0 c000e8f0 c0257ca0 00000000 00000000 00000000 00000000
[ 5.496381] ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 5.504512] ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 0bbb5628 10468c41
[ 5.512628] Backtrace:
[ 5.515081] [<c002415c>] (release_resource) from [<c01604fc>] (platform_device_del+0x74/0x84)
[ 5.523543] r4:ee8f3e00 r3:00000000
[ 5.527129] [<c0160488>] (platform_device_del) from [<c016054c>] (platform_device_unregister+0x14/0x20)
[ 5.536453] r6:00000005 r5:00000000 r4:ee8f3e00 r3:c03d39a0
[ 5.542138] [<c0160538>] (platform_device_unregister) from [<c01aad54>] (of_platform_device_destroy+0x58/0xa8)
[ 5.552066] r4:ee8f3e10 r3:c03d39a0
[ 5.555652] [<c01aacfc>] (of_platform_device_destroy) from [<c01ab3f8>] (of_platform_notify+0xcc/0xe8)
[ 5.564891] r4:ee8f3e00 r3:ee8f3e34
[ 5.568479] [<c01ab32c>] (of_platform_notify) from [<c00389b0>] (notifier_call_chain+0x48/0x70)
[ 5.577114] r6:00000005 r5:00000000 r4:ffffffff
[ 5.581746] [<c0038968>] (notifier_call_chain) from [<c0038c78>] (__blocking_notifier_call_chain+0x4c/0x64)
[ 5.591416] r8:00000005 r7:ee84fdf4 r6:ffffffff r5:c03d7ba4 r4:c03d7b98 r3:ffffffff
[ 5.599180] [<c0038c2c>] (__blocking_notifier_call_chain) from [<c0038cb0>] (blocking_notifier_call_chain+0x20/0x28)
[ 5.609625] r8:c0340d2c r7:c0340d2c r6:ee84fe88 r5:00000005 r4:ee84fdf4
[ 5.616352] [<c0038c90>] (blocking_notifier_call_chain) from [<c01ab868>] (of_reconfig_notify+0x88/0xa8)
[ 5.625776] [<c01ab7e0>] (of_reconfig_notify) from [<c01aba70>] (of_property_notify+0x44/0x4c)
[ 5.634325] r5:ee84fe88 r4:ee940440
[ 5.637912] [<c01aba2c>] (of_property_notify) from [<c01abafc>] (__of_changeset_entry_notify+0x84/0xc4)
[ 5.647251] [<c01aba78>] (__of_changeset_entry_notify) from [<c01ac408>] (of_changeset_apply+0xa4/0xe4)
[ 5.656575] r4:ee940440
[ 5.659114] [<c01ac364>] (of_changeset_apply) from [<c0335744>] (test_init+0x84/0xa8)
[ 5.666887] r6:00000000 r5:c03356c0 r4:eefd18b8
[ 5.671520] [<c03356c0>] (test_init) from [<c0321dd8>] (do_one_initcall+0x108/0x1bc)
[ 5.679208] r4:ee940440
[ 5.681746] [<c0321cd0>] (do_one_initcall) from [<c0321f88>] (kernel_init_freeable+0xfc/0x1bc)
[ 5.690296] r9:c03de2c0 r8:c03de2c0 r7:c034789c r6:c034155c r5:00000044 r4:00000007
[ 5.698060] [<c0321e8c>] (kernel_init_freeable) from [<c0257ca8>] (kernel_init+0x14/0xec)
[ 5.706178] r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c0257c94 r4:c03de2c0
[ 5.713942] [<c0257c94>] (kernel_init) from [<c000e8f0>] (ret_from_fork+0x14/0x24)
[ 5.721457] r4:00000000 r3:00000000
[ 5.725040] Code: e59f004c eb08ebcb e5943010 e2832018 (e5933018)
[ 5.731118] ---[ end trace cb88537fdc8fa202 ]---
[ 5.735735] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
[ 5.735735]
[ 5.744812] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
[ 5.744812]
Hi Wolfram,
> On Apr 14, 2015, at 16:27 , Wolfram Sang <[email protected]> wrote:
>
> Hi Pantelis,
>
> thanks for your prompt reply. Unfortunately, I had to wait until I could
> access the test system again.
>
[snip]
Sorry for the non-prompt reply; but just for kicks, can you try the attached patch?
I have a hunch this might be the problem.
Regards
— Pantelis
> Sorry for the non-prompt reply; but just for kicks, can you try the attached patch?
>
> I have a hunch this might be the problem.
Yeah, this even makes my more complex driver work \o/ I will post it
once -rc1 is out. Thanks a lot for your help, much appreciated!
Hi Wolfram,
> On Apr 23, 2015, at 11:33 , Wolfram Sang <[email protected]> wrote:
>
>
>> Sorry for the non-prompt reply; but just for kicks, can you try the attached patch?
>>
>> I have a hunch this might be the problem.
>
> Yeah, this even makes my more complex driver work \o/ I will post it
> once -rc1 is out. Thanks a lot for your help, much appreciated!
>
Good!
This patch has been posted before but up to now, no-one had a test case that triggered
the bug, so gregh was reluctant to pick it up.
Let’s gang up on him :)
Regards
— Pantelis
> This patch has been posted before but up to now, no-one had a test case that triggered
> the bug,
At your service... ;)
On Wed, 22 Apr 2015 15:30:28 +0300
, Pantelis Antoniou <[email protected]>
wrote:
> Hi Wolfram,
>
> > On Apr 14, 2015, at 16:27 , Wolfram Sang <[email protected]> wrote:
> >
> > Hi Pantelis,
> >
> > thanks for your prompt reply. Unfortunately, I had to wait until I could
> > access the test system again.
> >
>
> [snip]
>
> Sorry for the non-prompt reply; but just for kicks, can you try the attached patch?
>
> I have a hunch this might be the problem.
>
> Regards
>
> — Pantelis
>
>
I played around with this some today. If I'm reading it correctly, the
following patch reproduces the same problem:
(continued below patch)
---
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 18016341d5a9..0a27b38c3041 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -753,6 +753,11 @@ static void __init of_unittest_match_node(void)
}
}
+static struct resource test_bus_res = {
+ .start = 0xfffffff8,
+ .end = 0xfffffff9,
+ .flags = IORESOURCE_MEM,
+};
static const struct platform_device_info test_bus_info = {
.name = "unittest-bus",
};
@@ -795,6 +800,7 @@ static void __init of_unittest_platform_populate(void)
if (rc)
return;
test_bus->dev.of_node = np;
+ platform_device_add_resources(test_bus, &test_bus_res, 1);
of_platform_populate(np, match, NULL, &test_bus->dev);
for_each_child_of_node(np, child) {
---
I think the fixup patch boils down to the following. It's hard to tell
because it combines refactoring with the bug fix. Do I have it correct?
If so, I'd rather commit the simple fix which can be committed now for
v4.1, and the refactoring can be pushed for v4.2
---
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index ebf034b97278..b3042e6ee3ef 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -377,7 +377,7 @@ int platform_device_add(struct platform_device *pdev)
struct resource *r = &pdev->resource[i];
unsigned long type = resource_type(r);
- if (type == IORESOURCE_MEM || type == IORESOURCE_IO)
+ if (r->parent)
release_resource(r);
}
@@ -410,7 +410,7 @@ void platform_device_del(struct platform_device *pdev)
struct resource *r = &pdev->resource[i];
unsigned long type = resource_type(r);
- if (type == IORESOURCE_MEM || type == IORESOURCE_IO)
+ if (r->parent)
release_resource(r);
}
}
Hi Grant,
On Sunday 07 June 2015 12:16:32 Grant Likely wrote:
> On Wed, 22 Apr 2015 15:30:28 +0300, Pantelis Antoniou wrote:
> > > On Apr 14, 2015, at 16:27 , Wolfram Sang <[email protected]> wrote:
> > >
> > > Hi Pantelis,
> > >
> > > thanks for your prompt reply. Unfortunately, I had to wait until I could
> > > access the test system again.
> >
> > [snip]
> >
> > Sorry for the non-prompt reply; but just for kicks, can you try the
> > attached patch?
> >
> > I have a hunch this might be the problem.
> >
> > Regards
> >
> > — Pantelis
>
> I played around with this some today. If I'm reading it correctly, the
> following patch reproduces the same problem:
>
> (continued below patch)
> ---
> diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
> index 18016341d5a9..0a27b38c3041 100644
> --- a/drivers/of/unittest.c
> +++ b/drivers/of/unittest.c
> @@ -753,6 +753,11 @@ static void __init of_unittest_match_node(void)
> }
> }
>
> +static struct resource test_bus_res = {
> + .start = 0xfffffff8,
> + .end = 0xfffffff9,
> + .flags = IORESOURCE_MEM,
> +};
> static const struct platform_device_info test_bus_info = {
> .name = "unittest-bus",
> };
> @@ -795,6 +800,7 @@ static void __init of_unittest_platform_populate(void)
> if (rc)
> return;
> test_bus->dev.of_node = np;
> + platform_device_add_resources(test_bus, &test_bus_res, 1);
>
> of_platform_populate(np, match, NULL, &test_bus->dev);
> for_each_child_of_node(np, child) {
>
> ---
>
> I think the fixup patch boils down to the following. It's hard to tell
> because it combines refactoring with the bug fix. Do I have it correct?
> If so, I'd rather commit the simple fix which can be committed now for
> v4.1, and the refactoring can be pushed for v4.2
The patch below looks equivalent to Pantelis' patch if we remove the
refactoring, but I don't immediately see how r->parent can be NULL in
platform_device_del() if type is equal to IORESOURCE_MEM or IORESOURCE_IO, as
platform_device_add() will have called insert_resource() in those cases, which
should set the resource parent pointer. I must be missing something as the
patch fixes Wolfram's issue, so an explanation in the commit message would be
welcome.
> ---
>
> diff --git a/drivers/base/platform.c b/drivers/base/platform.c
> index ebf034b97278..b3042e6ee3ef 100644
> --- a/drivers/base/platform.c
> +++ b/drivers/base/platform.c
> @@ -377,7 +377,7 @@ int platform_device_add(struct platform_device *pdev)
> struct resource *r = &pdev->resource[i];
> unsigned long type = resource_type(r);
>
> - if (type == IORESOURCE_MEM || type == IORESOURCE_IO)
> + if (r->parent)
> release_resource(r);
> }
>
> @@ -410,7 +410,7 @@ void platform_device_del(struct platform_device *pdev)
> struct resource *r = &pdev->resource[i];
> unsigned long type = resource_type(r);
>
> - if (type == IORESOURCE_MEM || type == IORESOURCE_IO)
> + if (r->parent)
> release_resource(r);
> }
> }
--
Regards,
Laurent Pinchart
On Tue, 09 Jun 2015 19:50:26 +0300
, Laurent Pinchart <[email protected]>
wrote:
> Hi Grant,
>
> On Sunday 07 June 2015 12:16:32 Grant Likely wrote:
> > On Wed, 22 Apr 2015 15:30:28 +0300, Pantelis Antoniou wrote:
> > > > On Apr 14, 2015, at 16:27 , Wolfram Sang <[email protected]> wrote:
> > > >
> > > > Hi Pantelis,
> > > >
> > > > thanks for your prompt reply. Unfortunately, I had to wait until I could
> > > > access the test system again.
> > >
> > > [snip]
> > >
> > > Sorry for the non-prompt reply; but just for kicks, can you try the
> > > attached patch?
> > >
> > > I have a hunch this might be the problem.
> > >
> > > Regards
> > >
> > > â Pantelis
> >
> > I played around with this some today. If I'm reading it correctly, the
> > following patch reproduces the same problem:
> >
> > (continued below patch)
> > ---
> > diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
> > index 18016341d5a9..0a27b38c3041 100644
> > --- a/drivers/of/unittest.c
> > +++ b/drivers/of/unittest.c
> > @@ -753,6 +753,11 @@ static void __init of_unittest_match_node(void)
> > }
> > }
> >
> > +static struct resource test_bus_res = {
> > + .start = 0xfffffff8,
> > + .end = 0xfffffff9,
> > + .flags = IORESOURCE_MEM,
> > +};
> > static const struct platform_device_info test_bus_info = {
> > .name = "unittest-bus",
> > };
> > @@ -795,6 +800,7 @@ static void __init of_unittest_platform_populate(void)
> > if (rc)
> > return;
> > test_bus->dev.of_node = np;
> > + platform_device_add_resources(test_bus, &test_bus_res, 1);
> >
> > of_platform_populate(np, match, NULL, &test_bus->dev);
> > for_each_child_of_node(np, child) {
> >
> > ---
> >
> > I think the fixup patch boils down to the following. It's hard to tell
> > because it combines refactoring with the bug fix. Do I have it correct?
> > If so, I'd rather commit the simple fix which can be committed now for
> > v4.1, and the refactoring can be pushed for v4.2
>
> The patch below looks equivalent to Pantelis' patch if we remove the
> refactoring, but I don't immediately see how r->parent can be NULL in
> platform_device_del() if type is equal to IORESOURCE_MEM or IORESOURCE_IO, as
> platform_device_add() will have called insert_resource() in those cases, which
> should set the resource parent pointer. I must be missing something as the
> patch fixes Wolfram's issue, so an explanation in the commit message would be
> welcome.
of_platform_populate() adds platform devices via of_device_add().
of_device_add() doesn't add the resources because there are platforms
that break due to nodes with overlapping resources.
g.
Hi Grant,
> On Jun 7, 2015, at 14:16 , Grant Likely <[email protected]> wrote:
>
> On Wed, 22 Apr 2015 15:30:28 +0300
> , Pantelis Antoniou <[email protected]>
> wrote:
>> Hi Wolfram,
>>
>>> On Apr 14, 2015, at 16:27 , Wolfram Sang <[email protected]> wrote:
>>>
>>> Hi Pantelis,
>>>
>>> thanks for your prompt reply. Unfortunately, I had to wait until I could
>>> access the test system again.
>>>
>>
>> [snip]
>>
>> Sorry for the non-prompt reply; but just for kicks, can you try the attached patch?
>>
>> I have a hunch this might be the problem.
>>
>> Regards
>>
>> — Pantelis
>>
>>
>
> I played around with this some today. If I'm reading it correctly, the
> following patch reproduces the same problem:
>
> (continued below patch)
> ---
> diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
> index 18016341d5a9..0a27b38c3041 100644
> --- a/drivers/of/unittest.c
> +++ b/drivers/of/unittest.c
> @@ -753,6 +753,11 @@ static void __init of_unittest_match_node(void)
> }
> }
>
> +static struct resource test_bus_res = {
> + .start = 0xfffffff8,
> + .end = 0xfffffff9,
> + .flags = IORESOURCE_MEM,
> +};
> static const struct platform_device_info test_bus_info = {
> .name = "unittest-bus",
> };
> @@ -795,6 +800,7 @@ static void __init of_unittest_platform_populate(void)
> if (rc)
> return;
> test_bus->dev.of_node = np;
> + platform_device_add_resources(test_bus, &test_bus_res, 1);
>
> of_platform_populate(np, match, NULL, &test_bus->dev);
> for_each_child_of_node(np, child) {
>
> ---
>
> I think the fixup patch boils down to the following. It's hard to tell
> because it combines refactoring with the bug fix. Do I have it correct?
> If so, I'd rather commit the simple fix which can be committed now for
> v4.1, and the refactoring can be pushed for v4.2
>
> ---
>
> diff --git a/drivers/base/platform.c b/drivers/base/platform.c
> index ebf034b97278..b3042e6ee3ef 100644
> --- a/drivers/base/platform.c
> +++ b/drivers/base/platform.c
> @@ -377,7 +377,7 @@ int platform_device_add(struct platform_device *pdev)
> struct resource *r = &pdev->resource[i];
> unsigned long type = resource_type(r);
>
> - if (type == IORESOURCE_MEM || type == IORESOURCE_IO)
> + if (r->parent)
> release_resource(r);
> }
>
> @@ -410,7 +410,7 @@ void platform_device_del(struct platform_device *pdev)
> struct resource *r = &pdev->resource[i];
> unsigned long type = resource_type(r);
>
> - if (type == IORESOURCE_MEM || type == IORESOURCE_IO)
> + if (r->parent)
> release_resource(r);
> }
> }
>
Verified. No crashes.
Acked-by: Pantelis Antoniou <[email protected]>