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d477bf3af1
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:
|
||
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.. | ||
acpi-cpufreq.c | ||
amd_freq_sensitivity.c | ||
arm_big_little_dt.c | ||
arm_big_little.c | ||
arm_big_little.h | ||
at32ap-cpufreq.c | ||
blackfin-cpufreq.c | ||
bmips-cpufreq.c | ||
brcmstb-avs-cpufreq.c | ||
cppc_cpufreq.c | ||
cpufreq_conservative.c | ||
cpufreq_governor_attr_set.c | ||
cpufreq_governor.c | ||
cpufreq_governor.h | ||
cpufreq_ondemand.c | ||
cpufreq_ondemand.h | ||
cpufreq_performance.c | ||
cpufreq_powersave.c | ||
cpufreq_stats.c | ||
cpufreq_userspace.c | ||
cpufreq-dt-platdev.c | ||
cpufreq-dt.c | ||
cpufreq-dt.h | ||
cpufreq-nforce2.c | ||
cpufreq.c | ||
cris-artpec3-cpufreq.c | ||
cris-etraxfs-cpufreq.c | ||
davinci-cpufreq.c | ||
e_powersaver.c | ||
elanfreq.c | ||
exynos5440-cpufreq.c | ||
freq_table.c | ||
gx-suspmod.c | ||
highbank-cpufreq.c | ||
ia64-acpi-cpufreq.c | ||
imx6q-cpufreq.c | ||
intel_pstate.c | ||
Kconfig | ||
Kconfig.arm | ||
Kconfig.powerpc | ||
Kconfig.x86 | ||
kirkwood-cpufreq.c | ||
longhaul.c | ||
longhaul.h | ||
longrun.c | ||
loongson1-cpufreq.c | ||
loongson2_cpufreq.c | ||
Makefile | ||
maple-cpufreq.c | ||
mediatek-cpufreq.c | ||
mvebu-cpufreq.c | ||
omap-cpufreq.c | ||
p4-clockmod.c | ||
pasemi-cpufreq.c | ||
pcc-cpufreq.c | ||
pmac32-cpufreq.c | ||
pmac64-cpufreq.c | ||
powernow-k6.c | ||
powernow-k7.c | ||
powernow-k7.h | ||
powernow-k8.c | ||
powernow-k8.h | ||
powernv-cpufreq.c | ||
ppc_cbe_cpufreq_pervasive.c | ||
ppc_cbe_cpufreq_pmi.c | ||
ppc_cbe_cpufreq.c | ||
ppc_cbe_cpufreq.h | ||
pxa2xx-cpufreq.c | ||
pxa3xx-cpufreq.c | ||
qoriq-cpufreq.c | ||
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 | ||
sa1100-cpufreq.c | ||
sa1110-cpufreq.c | ||
sc520_freq.c | ||
scpi-cpufreq.c | ||
sfi-cpufreq.c | ||
sh-cpufreq.c | ||
sparc-us2e-cpufreq.c | ||
sparc-us3-cpufreq.c | ||
spear-cpufreq.c | ||
speedstep-centrino.c | ||
speedstep-ich.c | ||
speedstep-lib.c | ||
speedstep-lib.h | ||
speedstep-smi.c | ||
sti-cpufreq.c | ||
tango-cpufreq.c | ||
tegra20-cpufreq.c | ||
tegra124-cpufreq.c | ||
tegra186-cpufreq.c | ||
ti-cpufreq.c | ||
unicore2-cpufreq.c | ||
vexpress-spc-cpufreq.c |