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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: edeec420de24 (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
..
acpi-cpufreq.c
cpufreq: Remove CPU hotplug callbacks only if they were initialized
2016-12-21 02:52:52 +01:00
amd_freq_sensitivity.c
cpufreq: Reuse new freq-table helpers
2016-07-07 00:14:27 +02:00
arm_big_little_dt.c
cpufreq: arm_big_little: use generic OPP functions for {init, free}_opp_table
2016-05-05 01:40:04 +02:00
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
cpufreq: arm_big_little: use generic OPP functions for {init, free}_opp_table
2016-05-05 01:40:04 +02:00
at32ap-cpufreq.c
cpufreq: at32ap: don't declare local variable as static
2014-04-07 14:31:33 +02:00
blackfin-cpufreq.c
blackfin-cpufreq: Mark cpu_set_cclk() as static
2015-12-28 01:51:36 +01:00
bmips-cpufreq.c
cpufreq: bmips-cpufreq: CPUfreq driver for Broadcom's BMIPS SoCs
2017-02-09 01:22:44 +01:00
brcmstb-avs-cpufreq.c
cpufreq: brcmstb-avs-cpufreq: remove unnecessary platform_set_drvdata()
2017-02-09 01:22:46 +01:00
cppc_cpufreq.c
cpufreq: remove setting of policy->cpu in policy->cpus during init
2017-08-18 01:41:37 +02:00
cpufreq_conservative.c
cpufreq: governor: Drop min_sampling_rate
2017-07-22 02:25:20 +02:00
cpufreq_governor_attr_set.c
cpufreq: governor: Move abstract gov_attr_set code to seperate file
2016-04-02 01:09:01 +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_ondemand.c
cpufreq: governor: Drop min_sampling_rate
2017-07-22 02:25:20 +02:00
cpufreq_ondemand.h
cpufreq: ondemand: Don't keep a copy of freq_table pointer
2016-06-09 00:58:06 +02:00
cpufreq_performance.c
cpufreq: governor: Get rid of governor events
2016-06-02 23:24:15 +02:00
cpufreq_powersave.c
cpufreq: governor: Get rid of governor events
2016-06-02 23:24:15 +02:00
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
cpufreq: governor: Get rid of governor events
2016-06-02 23:24:15 +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: dt: Support governor tunables per policy
2016-09-13 02:39:12 +02:00
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
cris-artpec3-cpufreq.c
cpufreq: create another field .flags in cpufreq_frequency_table
2014-04-07 14:43:50 +02:00
cris-etraxfs-cpufreq.c
cpufreq: create another field .flags in cpufreq_frequency_table
2014-04-07 14:43:50 +02:00
davinci-cpufreq.c
ARM: davinci: da850: fix da850_set_pll0rate()
2017-01-02 15:02:51 +05:30
e_powersaver.c
cpufreq: e_powersaver: Use IS_ENABLED() instead of checking for built-in or module
2016-04-27 22:42:34 +02:00
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
cpufreq: Handle sorted frequency tables more efficiently
2016-07-07 00:13:20 +02:00
gx-suspmod.c
cpufreq: Add CPUFREQ_NO_AUTO_DYNAMIC_SWITCHING cpufreq driver flag
2017-07-26 00:15:46 +02:00
highbank-cpufreq.c
Merge branch 'mailbox-for-linus' of git://git.linaro.org/landing-teams/working/fujitsu/integration
2014-10-21 11:21:19 -07:00
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
Kconfig
cpufreq: qoriq: add ARM64 SoCs support
2017-02-09 14:33:01 +01:00
Kconfig.arm
cpufreq: dbx500: Delete obsolete driver
2017-08-22 15:50:02 +02:00
Kconfig.powerpc
cpufreq: qoriq: rename the driver
2015-03-18 22:35:16 +01:00
Kconfig.x86
sched/x86: Change CONFIG_SCHED_ITMT to CONFIG_SCHED_MC_PRIO
2016-11-30 08:27:08 +01:00
kirkwood-cpufreq.c
cpufreq: kirkwood-cpufreq:- Handle return value of clk_prepare_enable()
2017-05-30 00:09:41 +02:00
longhaul.c
Power management material for v4.7-rc1
2016-05-16 19:17:22 -07:00
longhaul.h
…
longrun.c
cpufreq: Don't set transition_latency for setpolicy drivers
2017-07-26 00:15:43 +02:00
loongson1-cpufreq.c
CPUFREQ: Loongson1: Replace goto out with return in ls1x_cpufreq_probe()
2016-05-13 14:02:08 +02:00
loongson2_cpufreq.c
cpufreq: Loongson2: constify platform_device_id
2017-08-18 01:44:21 +02:00
Makefile
cpufreq: dbx500: Delete obsolete driver
2017-08-22 15:50:02 +02:00
maple-cpufreq.c
cpufreq: Use consistent prefixing via pr_fmt
2016-04-09 01:35:18 +02:00
mediatek-cpufreq.c
cpufreq: mediatek: add support of cpufreq to MT7622 SoC
2017-08-10 01:29:53 +02:00
mvebu-cpufreq.c
cpufreq: mvebu: fix integer to pointer cast
2016-06-13 23:49:43 +02:00
omap-cpufreq.c
PM / OPP: Update OPP users to put reference
2017-01-30 09:22:21 +01:00
p4-clockmod.c
cpufreq: Use consistent prefixing via pr_fmt
2016-04-09 01:35:18 +02:00
pasemi-cpufreq.c
cpufreq/pasemi: Adjust system_state check
2017-05-23 10:01:36 +02:00
pcc-cpufreq.c
Revert "cpufreq: pcc-cpufreq: update default value of cpuinfo_transition_latency"
2016-07-22 23:51:06 +02:00
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
cpufreq: Use consistent prefixing via pr_fmt
2016-04-09 01:35:18 +02:00
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
cpufreq: powernow-k8: Suppress checkpatch warnings
2014-05-17 01:27:01 +02:00
powernv-cpufreq.c
cpufreq: powernv: Add boost files to export ultra-turbo frequencies
2017-02-03 23:59:41 +01:00
ppc_cbe_cpufreq_pervasive.c
…
ppc_cbe_cpufreq_pmi.c
cpufreq: Remove CPUFREQ_START notifier event
2017-02-04 00:05:30 +01:00
ppc_cbe_cpufreq.c
cpufreq: Use cpufreq_for_each_* macros for frequency table iteration
2014-04-30 00:06:21 +02:00
ppc_cbe_cpufreq.h
cpufreq: e_powersaver: Use IS_ENABLED() instead of checking for built-in or module
2016-04-27 22:42:34 +02:00
pxa2xx-cpufreq.c
cpufreq: Use consistent prefixing via pr_fmt
2016-04-09 01:35:18 +02:00
pxa3xx-cpufreq.c
cpufreq: Remove cpufreq_generic_exit()
2014-03-12 01:06:00 +01:00
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
cpufreq: Use consistent prefixing via pr_fmt
2016-04-09 01:35:18 +02:00
s3c24xx-cpufreq.c
cpufreq: Return index from cpufreq_frequency_table_target()
2016-06-09 00:58:06 +02:00
s3c64xx-cpufreq.c
cpufreq: s3c64xx: remove incorrect __init annotation
2016-12-21 02:54:18 +01:00
s3c2410-cpufreq.c
cpufreq: s3c24xx: Remove some dead code
2014-07-19 04:24:59 +09:00
s3c2412-cpufreq.c
cpufreq: Use consistent prefixing via pr_fmt
2016-04-09 01:35:18 +02:00
s3c2416-cpufreq.c
cpufreq: s3c2416: double free on driver init error path
2017-02-09 01:22:45 +01:00
s3c2440-cpufreq.c
cpufreq: Use consistent prefixing via pr_fmt
2016-04-09 01:35:18 +02:00
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
cpufreq: Use consistent prefixing via pr_fmt
2016-04-09 01:35:18 +02:00
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
cpufreq: drop owner assignment from platform_drivers
2014-10-20 16:20:24 +02:00
speedstep-centrino.c
cpufreq: Use consistent prefixing via pr_fmt
2016-04-09 01:35:18 +02:00
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
cpufreq: tegra20: remove superfluous CONFIG_PM ifdefs
2015-09-26 03:00:57 +02:00
tegra124-cpufreq.c
cpufreq: tegra124: No need of setting platform-data
2016-04-09 01:12:09 +02:00
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
cpufreq: arm_big_little: use generic OPP functions for {init, free}_opp_table
2016-05-05 01:40:04 +02:00