Suniel Mahesh d477bf3af1 cpufreq: dt: Fix sysfs duplicate filename creation for platform-device ... ti-cpufreq and cpufreq-dt-platdev drivers are registering platform-device with same name "cpufreq-dt" using platform_device_register_*() routines. This is leading to build warnings appended below. Providing hardware information to OPP framework along with the platform- device creation should be done by ti-cpufreq driver before cpufreq-dt driver comes into place. This patch add's TI am33xx, am43 and dra7 platforms (which use opp-v2 property) to the blacklist of devices in cpufreq-dt-platform driver to avoid creating platform-device twice and remove build warnings. [ 2.370167] ------------[ cut here ]------------ [ 2.375087] WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x58/0x78 [ 2.383112] sysfs: cannot create duplicate filename '/devices/platform/cpufreq-dt' [ 2.391219] Modules linked in: [ 2.394506] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.13.0-next-20170912 #1 [ 2.402006] Hardware name: Generic AM33XX (Flattened Device Tree) [ 2.408437] [<c0110a28>] (unwind_backtrace) from [<c010ca84>] (show_stack+0x10/0x14) [ 2.416568] [<c010ca84>] (show_stack) from [<c0827d64>] (dump_stack+0xac/0xe0) [ 2.424165] [<c0827d64>] (dump_stack) from [<c0137470>] (__warn+0xd8/0x104) [ 2.431488] [<c0137470>] (__warn) from [<c01374d0>] (warn_slowpath_fmt+0x34/0x44) [ 2.439351] [<c01374d0>] (warn_slowpath_fmt) from [<c03459d0>] (sysfs_warn_dup+0x58/0x78) [ 2.447938] [<c03459d0>] (sysfs_warn_dup) from [<c0345ab8>] (sysfs_create_dir_ns+0x80/0x98) [ 2.456719] [<c0345ab8>] (sysfs_create_dir_ns) from [<c082c554>] (kobject_add_internal+0x9c/0x2d4) [ 2.466124] [<c082c554>] (kobject_add_internal) from [<c082c7d8>] (kobject_add+0x4c/0x9c) [ 2.474712] [<c082c7d8>] (kobject_add) from [<c05803e4>] (device_add+0xcc/0x57c) [ 2.482489] [<c05803e4>] (device_add) from [<c0584b74>] (platform_device_add+0x100/0x220) [ 2.491085] [<c0584b74>] (platform_device_add) from [<c05855a8>] (platform_device_register_full+0xf4/0x118) [ 2.501305] [<c05855a8>] (platform_device_register_full) from [<c067023c>] (ti_cpufreq_init+0x150/0x22c) [ 2.511253] [<c067023c>] (ti_cpufreq_init) from [<c0101df4>] (do_one_initcall+0x3c/0x170) [ 2.519838] [<c0101df4>] (do_one_initcall) from [<c0c00eb4>] (kernel_init_freeable+0x1fc/0x2c4) [ 2.528974] [<c0c00eb4>] (kernel_init_freeable) from [<c083bcac>] (kernel_init+0x8/0x110) [ 2.537565] [<c083bcac>] (kernel_init) from [<c0107d18>] (ret_from_fork+0x14/0x3c) [ 2.545981] ---[ end trace 2fc00e213c13ab20 ]--- [ 2.551051] ------------[ cut here ]------------ [ 2.555931] WARNING: CPU: 0 PID: 1 at lib/kobject.c:240 kobject_add_internal+0x254/0x2d4 [ 2.564578] kobject_add_internal failed for cpufreq-dt with -EEXIST, don't try to register things with the same name in the same directory. [ 2.577977] Modules linked in: [ 2.581261] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 4.13.0-next-20170912 #1 [ 2.590013] Hardware name: Generic AM33XX (Flattened Device Tree) [ 2.596437] [<c0110a28>] (unwind_backtrace) from [<c010ca84>] (show_stack+0x10/0x14) [ 2.604573] [<c010ca84>] (show_stack) from [<c0827d64>] (dump_stack+0xac/0xe0) [ 2.612172] [<c0827d64>] (dump_stack) from [<c0137470>] (__warn+0xd8/0x104) [ 2.619494] [<c0137470>] (__warn) from [<c01374d0>] (warn_slowpath_fmt+0x34/0x44) [ 2.627362] [<c01374d0>] (warn_slowpath_fmt) from [<c082c70c>] (kobject_add_internal+0x254/0x2d4) [ 2.636666] [<c082c70c>] (kobject_add_internal) from [<c082c7d8>] (kobject_add+0x4c/0x9c) [ 2.645255] [<c082c7d8>] (kobject_add) from [<c05803e4>] (device_add+0xcc/0x57c) [ 2.653027] [<c05803e4>] (device_add) from [<c0584b74>] (platform_device_add+0x100/0x220) [ 2.661615] [<c0584b74>] (platform_device_add) from [<c05855a8>] (platform_device_register_full+0xf4/0x118) [ 2.671833] [<c05855a8>] (platform_device_register_full) from [<c067023c>] (ti_cpufreq_init+0x150/0x22c) [ 2.681779] [<c067023c>] (ti_cpufreq_init) from [<c0101df4>] (do_one_initcall+0x3c/0x170) [ 2.690377] [<c0101df4>] (do_one_initcall) from [<c0c00eb4>] (kernel_init_freeable+0x1fc/0x2c4) [ 2.699510] [<c0c00eb4>] (kernel_init_freeable) from [<c083bcac>] (kernel_init+0x8/0x110) [ 2.708106] [<c083bcac>] (kernel_init) from [<c0107d18>] (ret_from_fork+0x14/0x3c) [ 2.716217] ---[ end trace 2fc00e213c13ab21 ]--- Fixes: edeec420de (cpufreq: dt-cpufreq: platdev Automatically create device with OPP v2) Signed-off-by: Suniel Mahesh <sunil.m@techveda.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>		2017-09-26 01:10:08 +02:00
..
Kconfig	…
Kconfig.arm	cpufreq: dbx500: Delete obsolete driver	2017-08-22 15:50:02 +02:00
Kconfig.powerpc	…
Kconfig.x86	…
Makefile	cpufreq: dbx500: Delete obsolete driver	2017-08-22 15:50:02 +02:00
acpi-cpufreq.c	…
amd_freq_sensitivity.c	…
arm_big_little.c	cpufreq: arm_big_little: Make ->get_transition_latency() mandatory	2017-07-26 00:15:44 +02:00
arm_big_little.h	…
arm_big_little_dt.c	…
at32ap-cpufreq.c	…
blackfin-cpufreq.c	…
bmips-cpufreq.c	…
brcmstb-avs-cpufreq.c	…
cppc_cpufreq.c	cpufreq: remove setting of policy->cpu in policy->cpus during init	2017-08-18 01:41:37 +02:00
cpufreq-dt-platdev.c	cpufreq: dt: Fix sysfs duplicate filename creation for platform-device	2017-09-26 01:10:08 +02:00
cpufreq-dt.c	cpufreq: Process remote callbacks from any CPU if the platform permits	2017-08-01 14:24:54 +02:00
cpufreq-dt.h	…
cpufreq-nforce2.c	cpufreq: Add CPUFREQ_NO_AUTO_DYNAMIC_SWITCHING cpufreq driver flag	2017-07-26 00:15:46 +02:00
cpufreq.c	Merge branch 'pm-cpufreq-sched'	2017-09-04 00:05:22 +02:00
cpufreq_conservative.c	cpufreq: governor: Drop min_sampling_rate	2017-07-22 02:25:20 +02:00
cpufreq_governor.c	Merge branch 'pm-cpufreq-sched'	2017-09-04 00:05:22 +02:00
cpufreq_governor.h	cpufreq: Replace "max_transition_latency" with "dynamic_switching"	2017-07-26 00:15:45 +02:00
cpufreq_governor_attr_set.c	…
cpufreq_ondemand.c	cpufreq: governor: Drop min_sampling_rate	2017-07-22 02:25:20 +02:00
cpufreq_ondemand.h	…
cpufreq_performance.c	…
cpufreq_powersave.c	…
cpufreq_stats.c	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux	2017-07-14 13:12:32 -07:00
cpufreq_userspace.c	…
cris-artpec3-cpufreq.c	…
cris-etraxfs-cpufreq.c	…
davinci-cpufreq.c	…
e_powersaver.c	…
elanfreq.c	cpufreq: Add CPUFREQ_NO_AUTO_DYNAMIC_SWITCHING cpufreq driver flag	2017-07-26 00:15:46 +02:00
exynos5440-cpufreq.c	cpufreq: exynos5440: Fix inconsistent indenting	2017-06-24 01:38:00 +02:00
freq_table.c	…
gx-suspmod.c	cpufreq: Add CPUFREQ_NO_AUTO_DYNAMIC_SWITCHING cpufreq driver flag	2017-07-26 00:15:46 +02:00
highbank-cpufreq.c	…
ia64-acpi-cpufreq.c	cpufreq/ia64: Replace racy task affinity logic	2017-04-15 12:20:55 +02:00
imx6q-cpufreq.c	cpufreq: imx6q: Fix imx6sx low frequency support	2017-08-29 00:22:52 +02:00
intel_pstate.c	ACPI updates for v4.14-rc1	2017-09-05 12:45:03 -07:00
kirkwood-cpufreq.c	cpufreq: kirkwood-cpufreq:- Handle return value of clk_prepare_enable()	2017-05-30 00:09:41 +02:00
longhaul.c	…
longhaul.h	…
longrun.c	cpufreq: Don't set transition_latency for setpolicy drivers	2017-07-26 00:15:43 +02:00
loongson1-cpufreq.c	…
loongson2_cpufreq.c	cpufreq: Loongson2: constify platform_device_id	2017-08-18 01:44:21 +02:00
maple-cpufreq.c	…
mediatek-cpufreq.c	cpufreq: mediatek: add support of cpufreq to MT7622 SoC	2017-08-10 01:29:53 +02:00
mvebu-cpufreq.c	…
omap-cpufreq.c	…
p4-clockmod.c	…
pasemi-cpufreq.c	cpufreq/pasemi: Adjust system_state check	2017-05-23 10:01:36 +02:00
pcc-cpufreq.c	…
pmac32-cpufreq.c	cpufreq: Add CPUFREQ_NO_AUTO_DYNAMIC_SWITCHING cpufreq driver flag	2017-07-26 00:15:46 +02:00
pmac64-cpufreq.c	cpufreq: Convert to using %pOF instead of full_name	2017-08-25 01:20:46 +02:00
powernow-k6.c	…
powernow-k7.c	dmi: Mark all struct dmi_system_id instances const	2017-09-14 11:59:30 +02:00
powernow-k7.h	…
powernow-k8.c	format-security: move static strings to const	2017-05-08 17:15:14 -07:00
powernow-k8.h	…
powernv-cpufreq.c	…
ppc_cbe_cpufreq.c	…
ppc_cbe_cpufreq.h	…
ppc_cbe_cpufreq_pervasive.c	…
ppc_cbe_cpufreq_pmi.c	…
pxa2xx-cpufreq.c	…
pxa3xx-cpufreq.c	…
qoriq-cpufreq.c	thermal: cpu_cooling: use cpufreq_policy to register cooling device	2017-05-27 17:32:24 -07:00
s3c24xx-cpufreq-debugfs.c	…
s3c24xx-cpufreq.c	…
s3c64xx-cpufreq.c	…
s3c2410-cpufreq.c	…
s3c2412-cpufreq.c	…
s3c2416-cpufreq.c	…
s3c2440-cpufreq.c	…
s5pv210-cpufreq.c	cpufreq: s5pv210: add missing of_node_put()	2017-07-26 22:54:01 +02:00
sa1100-cpufreq.c	cpufreq: Add CPUFREQ_NO_AUTO_DYNAMIC_SWITCHING cpufreq driver flag	2017-07-26 00:15:46 +02:00
sa1110-cpufreq.c	cpufreq: Add CPUFREQ_NO_AUTO_DYNAMIC_SWITCHING cpufreq driver flag	2017-07-26 00:15:46 +02:00
sc520_freq.c	…
scpi-cpufreq.c	cpufreq: scpi: use new scpi_ops functions to remove duplicate code	2017-06-05 11:14:35 +01:00
sfi-cpufreq.c	cpufreq: sfi: make freq_table static	2017-06-24 01:43:21 +02:00
sh-cpufreq.c	cpufreq: Add CPUFREQ_NO_AUTO_DYNAMIC_SWITCHING cpufreq driver flag	2017-07-26 00:15:46 +02:00
sparc-us2e-cpufreq.c	cpufreq/sparc-us2e: Replace racy task affinity logic	2017-04-15 12:20:56 +02:00
sparc-us3-cpufreq.c	cpufreq/sparc-us3: Replace racy task affinity logic	2017-04-15 12:20:55 +02:00
spear-cpufreq.c	…
speedstep-centrino.c	…
speedstep-ich.c	cpufreq: speedstep: remove unnecessary static in speedstep_detect_chipset()	2017-07-16 02:12:35 +02:00
speedstep-lib.c	cpufreq: speedstep-lib: make several arrays static, makes code smaller	2017-08-29 00:21:41 +02:00
speedstep-lib.h	…
speedstep-smi.c	cpufreq: Add CPUFREQ_NO_AUTO_DYNAMIC_SWITCHING cpufreq driver flag	2017-07-26 00:15:46 +02:00
sti-cpufreq.c	cpufreq: Convert to using %pOF instead of full_name	2017-08-25 01:20:46 +02:00
tango-cpufreq.c	cpufreq: dt: Don't use generic platdev driver for tango	2017-07-22 02:20:59 +02:00
tegra20-cpufreq.c	…
tegra124-cpufreq.c	…
tegra186-cpufreq.c	cpufreq: Add Tegra186 cpufreq driver	2017-04-19 23:23:08 +02:00
ti-cpufreq.c	cpufreq: ti-cpufreq: Support additional am43xx platforms	2017-09-20 00:51:01 +02:00
unicore2-cpufreq.c	cpufreq: Add CPUFREQ_NO_AUTO_DYNAMIC_SWITCHING cpufreq driver flag	2017-07-26 00:15:46 +02:00
vexpress-spc-cpufreq.c	…