| Message ID | 1427814771-30335-1-git-send-email-wsa@the-dreams.de (mailing list archive) |
|---|---|
| State | Not Applicable |
| Delegated to: | Simon Horman |
| Headers | show |
Hi Wolfram, > On Mar 31, 2015, at 18:12 , Wolfram Sang <wsa@the-dreams.de> wrote: > > From: Wolfram Sang <wsa+renesas@sang-engineering.com> > > I wanted to disable a node via OF_DYNAMIC by setting its status to disabled. > This code is the minimal testcase, the same happens in a more complex scenario. > There is something wrong with freeing resources. Is my module wrong? Or is it a > bug? Crashlog without CONFIG_I2C_CHARDEV, slightly shortened: > > [ 5.127314] of/notify UPDATE_PROPERTY /i2c@e60b0000:status > [ 5.132814] i2c-sh_mobile e60b0000.i2c: pm_clk_notify() 2 > [ 5.138504] bus: 'platform': remove device e60b0000.i2c > [ 5.143762] i2c-sh_mobile e60b0000.i2c: pm_clk_notify() 6 > [ 5.149231] device: '7-0068': device_unregister > [ 5.153982] bus: 'i2c': remove device 7-0068 > [ 5.158679] device: 'regulator.2': device_unregister > [ 5.165827] i2c 7-0068: uevent > [ 5.168997] i2c i2c-7: adapter [e60b0000.i2c] unregistered > [ 5.174462] device: 'i2c-7': device_unregister > [ 5.179057] bus: 'i2c': remove device i2c-7 > [ 5.183570] platform e60b0000.i2c: pm_clk_notify() 7 > [ 5.188595] platform e60b0000.i2c: Runtime PM disabled, clock forced off. > [ 5.195368] platform e60b0000.i2c: pm_clk_notify() 3 > [ 5.200426] Unable to handle kernel NULL pointer dereference at virtual address 00000018 > [ 5.208474] pgd = c0004000 > [ 5.211164] [00000018] *pgd=00000000 > [ 5.214745] Internal error: Oops: 5 [#1] ARM > [ 5.218995] CPU: 0 PID: 1 Comm: swapper Tainted: G W 4.0.0-rc4-00009-gcb55587ebc4047 #90 > [ 5.228148] Hardware name: Generic R8A7790 (Flattened Device Tree) > [ 5.234288] task: ee84d340 ti: ee84e000 task.ti: ee84e000 > [ 5.239656] PC is at release_resource+0x20/0x68 > [ 5.244171] LR is at _raw_write_lock+0x3c/0x44 > [ 5.248591] pc : [<c002417c>] lr : [<c025f0e0>] psr: a0000113 > [ 5.248591] sp : ee84fcd8 ip : ee84fcb0 fp : ee84fcec > [ 5.259989] r10: 00000000 r9 : c03de2c0 r8 : c03d5694 > [ 5.265180] r7 : ee84fdf4 r6 : 0000001c r5 : 00000000 r4 : ee8efd00 > [ 5.271664] r3 : 00000000 r2 : 00000018 r1 : 00000009 r0 : c03c7cd8 > [ 5.278149] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel > [ 5.285410] Control: 10c5347d Table: 40004059 DAC: 00000015 > [ 5.291117] Process swapper (pid: 1, stack limit = 0xee84e208) > [ 5.296911] Stack: (0xee84fcd8 to 0xee850000) > [ 5.301243] fcc0: 00000000 ee8f3e00 > [ 5.309375] fce0: ee84fd0c ee84fcf0 c01604fc c0024168 c03d39a0 ee8f3e00 00000000 00000005 > [ 5.317507] fd00: ee84fd24 ee84fd10 c016054c c0160494 c03d39a0 ee8f3e10 ee84fd3c ee84fd28 > [ 5.325639] fd20: c01aad54 c0160544 ee8f3e34 ee8f3e00 ee84fd64 ee84fd40 c01ab3f8 c01aad08 > ... > [ 5.512643] Backtrace: > [ 5.515097] [<c002415c>] (release_resource) from [<c01604fc>] (platform_device_del+0x74/0x84) > [ 5.523561] r4:ee8f3e00 r3:00000000 > [ 5.527145] [<c0160488>] (platform_device_del) from [<c016054c>] (platform_device_unregister+0x14/0x20) > [ 5.536469] r6:00000005 r5:00000000 r4:ee8f3e00 r3:c03d39a0 > [ 5.542152] [<c0160538>] (platform_device_unregister) from [<c01aad54>] (of_platform_device_destroy+0x58/0xa8) > [ 5.552080] r4:ee8f3e10 r3:c03d39a0 > [ 5.555667] [<c01aacfc>] (of_platform_device_destroy) from [<c01ab3f8>] (of_platform_notify+0xcc/0xe8) > [ 5.564905] r4:ee8f3e00 r3:ee8f3e34 > [ 5.568493] [<c01ab32c>] (of_platform_notify) from [<c00389b0>] (notifier_call_chain+0x48/0x70) > [ 5.577128] r6:00000005 r5:00000000 r4:ffffffff > [ 5.581759] [<c0038968>] (notifier_call_chain) from [<c0038c78>] (__blocking_notifier_call_chain+0x4c/0x64) > [ 5.591429] r8:00000005 r7:ee84fdf4 r6:ffffffff r5:c03d7ba4 r4:c03d7b98 r3:ffffffff > [ 5.599192] [<c0038c2c>] (__blocking_notifier_call_chain) from [<c0038cb0>] (blocking_notifier_call_chain+0x20/0x28) > [ 5.609637] r8:c0340d2c r7:c0340d2c r6:ee84fe88 r5:00000005 r4:ee84fdf4 > [ 5.616365] [<c0038c90>] (blocking_notifier_call_chain) from [<c01ab868>] (of_reconfig_notify+0x88/0xa8) > [ 5.625788] [<c01ab7e0>] (of_reconfig_notify) from [<c01aba70>] (of_property_notify+0x44/0x4c) > [ 5.634338] r5:ee84fe88 r4:ee940440 > [ 5.637925] [<c01aba2c>] (of_property_notify) from [<c01abafc>] (__of_changeset_entry_notify+0x84/0xc4) > [ 5.647263] [<c01aba78>] (__of_changeset_entry_notify) from [<c01ac408>] (of_changeset_apply+0xa4/0xe4) > [ 5.656588] r4:ee940440 > [ 5.659126] [<c01ac364>] (of_changeset_apply) from [<c0335744>] (test_init+0x84/0xa8) > [ 5.666900] r6:00000000 r5:c03356c0 r4:eefd18b8 > [ 5.671533] [<c03356c0>] (test_init) from [<c0321dd8>] (do_one_initcall+0x108/0x1bc) > [ 5.679220] r4:ee940440 > > Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> > --- > drivers/of/Makefile | 2 +- > drivers/of/wsa_testcase.c | 48 +++++++++++++++++++++++++++++++++++++++++++++++ > 2 files changed, 49 insertions(+), 1 deletion(-) > create mode 100644 drivers/of/wsa_testcase.c > > diff --git a/drivers/of/Makefile b/drivers/of/Makefile > index 7563f36c71db34..4ec30a5bab39d5 100644 > --- a/drivers/of/Makefile > +++ b/drivers/of/Makefile > @@ -1,4 +1,4 @@ > -obj-y = base.o device.o platform.o > +obj-y = base.o device.o platform.o wsa_testcase.o > obj-$(CONFIG_OF_DYNAMIC) += dynamic.o > obj-$(CONFIG_OF_FLATTREE) += fdt.o > obj-$(CONFIG_OF_EARLY_FLATTREE) += fdt_address.o > diff --git a/drivers/of/wsa_testcase.c b/drivers/of/wsa_testcase.c > new file mode 100644 > index 00000000000000..b6bffd1acf76ad > --- /dev/null > +++ b/drivers/of/wsa_testcase.c > @@ -0,0 +1,48 @@ > +/* > + * Testcase for disabling nodes via OF_DYNAMIC > + * > + * Copyright (C) 2015 by Wolfram Sang, Sang Engineering <wsa@sang-engineering.com> > + * Copyright (C) 2015 by Renesas Electronics Corporation > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms of the GNU General Public License as published by the > + * Free Software Foundation; version 2 of the License. > + */ > + > +#include <linux/i2c.h> > +#include <linux/init.h> > +#include <linux/module.h> > +#include <linux/of.h> > +#include "of_private.h" > + > +static __init int test_init(void) > +{ > + > + struct i2c_adapter *adap; > + struct device_node *np; > + struct of_changeset chgset; > + 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. I bet that even after you fix that you’ll crash anyway. 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. > + // Use an active adapter here > + adap = i2c_get_adapter(0); > + if (!adap) > + return -EPROBE_DEFER; > + > + np = adap->dev.of_node; > + > + i2c_put_adapter(adap); > + > + of_changeset_init(&chgset); > + of_changeset_update_property(&chgset, np, &status_chg); > + > + mutex_lock(&of_mutex); > + ret = of_changeset_apply(&chgset); > + mutex_unlock(&of_mutex); > + > + return ret; > +} > +late_initcall(test_init); > + > +MODULE_AUTHOR("Wolfram Sang <wsa@sang-engineering.com>"); > +MODULE_LICENSE("GPL v2"); > -- > 2.1.4 > Regards — Pantelis -- To unsubscribe from this list: send the line "unsubscribe linux-sh" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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 <wsa@the-dreams.de> 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 <wsa@the-dreams.de> 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 -- To unsubscribe from this list: send the line "unsubscribe linux-sh" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
> This patch has been posted before but up to now, no-one had a test case that triggered > the bug, At your service... ;)
diff --git a/drivers/of/Makefile b/drivers/of/Makefile index 7563f36c71db34..4ec30a5bab39d5 100644 --- a/drivers/of/Makefile +++ b/drivers/of/Makefile @@ -1,4 +1,4 @@ -obj-y = base.o device.o platform.o +obj-y = base.o device.o platform.o wsa_testcase.o obj-$(CONFIG_OF_DYNAMIC) += dynamic.o obj-$(CONFIG_OF_FLATTREE) += fdt.o obj-$(CONFIG_OF_EARLY_FLATTREE) += fdt_address.o diff --git a/drivers/of/wsa_testcase.c b/drivers/of/wsa_testcase.c new file mode 100644 index 00000000000000..b6bffd1acf76ad --- /dev/null +++ b/drivers/of/wsa_testcase.c @@ -0,0 +1,48 @@ +/* + * Testcase for disabling nodes via OF_DYNAMIC + * + * Copyright (C) 2015 by Wolfram Sang, Sang Engineering <wsa@sang-engineering.com> + * Copyright (C) 2015 by Renesas Electronics Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + */ + +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/of.h> +#include "of_private.h" + +static __init int test_init(void) +{ + + struct i2c_adapter *adap; + struct device_node *np; + struct of_changeset chgset; + struct property status_chg = { .name = "status", .length = 9, .value = "disabled" }; + int ret; + + // Use an active adapter here + adap = i2c_get_adapter(0); + if (!adap) + return -EPROBE_DEFER; + + np = adap->dev.of_node; + + i2c_put_adapter(adap); + + of_changeset_init(&chgset); + of_changeset_update_property(&chgset, np, &status_chg); + + mutex_lock(&of_mutex); + ret = of_changeset_apply(&chgset); + mutex_unlock(&of_mutex); + + return ret; +} +late_initcall(test_init); + +MODULE_AUTHOR("Wolfram Sang <wsa@sang-engineering.com>"); +MODULE_LICENSE("GPL v2");