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Marek Behún 9112ebc299 cpufreq: armada-37xx: forbid cpufreq for 1.2 GHz variant 
[ Upstream commit 484f2b7c61b9ae58cc00c5127bcbcd9177af8dfe ]

The 1.2 GHz variant of the Armada 3720 SOC is unstable with DVFS: when
the SOC boots, the WTMI firmware sets clocks and AVS values that work
correctly with 1.2 GHz CPU frequency, but random crashes occur once
cpufreq driver starts scaling.

We do not know currently what is the reason:
- it may be that the voltage value for L0 for 1.2 GHz variant provided
  by the vendor in the OTP is simply incorrect when scaling is used,
- it may be that some delay is needed somewhere,
- it may be something else.

The most sane solution now seems to be to simply forbid the cpufreq
driver on 1.2 GHz variant.

Signed-off-by: Marek Behún <kabel@kernel.org>
Fixes: 92ce45fb875d ("cpufreq: Add DVFS support for Armada 37xx")
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-08-26 08:36:16 -04:00
..
acpi-cpufreq.c
acpi-cpufreq: Honor _PSD table setting on new AMD CPUs
2020-11-05 11:43:25 +01:00
amd_freq_sensitivity.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
arm_big_little.c
cpufreq: arm_big_little: Register an Energy Model
2019-02-07 09:55:11 +05:30
arm_big_little.h
cpufreq: arm_big_little: make function arguments and structure pointer const
2017-11-08 23:22:19 +01:00
armada-8k-cpufreq.c
cpufreq: ap806: Add missing MODULE_DEVICE_TABLE
2020-12-30 11:51:19 +01:00
armada-37xx-cpufreq.c
cpufreq: armada-37xx: forbid cpufreq for 1.2 GHz variant
2021-08-26 08:36:16 -04:00
bmips-cpufreq.c
cpufreq: Make cpufreq_generic_init() return void
2019-07-16 10:20:11 +02:00
brcmstb-avs-cpufreq.c
cpufreq: brcmstb-avs-cpufreq: Fix resource leaks in ->remove()
2021-03-04 10:26:14 +01:00
cppc_cpufreq.c
cpufreq: Avoid creating excessively large stack frames
2020-02-11 04:35:25 -08:00
cpufreq_conservative.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpufreq_governor_attr_set.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpufreq_governor.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpufreq_governor.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpufreq_ondemand.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpufreq_ondemand.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpufreq_performance.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpufreq_powersave.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpufreq_stats.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpufreq_userspace.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpufreq-dt-platdev.c
cpufreq: blacklist Arm Vexpress platforms in cpufreq-dt-platdev
2021-03-30 14:35:21 +02:00
cpufreq-dt.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpufreq-dt.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpufreq-nforce2.c
cpufreq: Avoid creating excessively large stack frames
2020-02-11 04:35:25 -08:00
cpufreq.c
cpufreq: Make cpufreq_online() call driver->offline() on errors
2021-07-14 16:53:25 +02:00
davinci-cpufreq.c
Merge branch 'pm-cpufreq'
2019-07-18 09:49:30 +02:00
e_powersaver.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
elanfreq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
freq_table.c
cpufreq: Avoid creating excessively large stack frames
2020-02-11 04:35:25 -08:00
gx-suspmod.c
cpufreq: Avoid creating excessively large stack frames
2020-02-11 04:35:25 -08:00
highbank-cpufreq.c
cpufreq: highbank: Add missing MODULE_DEVICE_TABLE
2020-12-30 11:51:19 +01:00
ia64-acpi-cpufreq.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
imx6q-cpufreq.c
cpufreq: imx6q: fix error handling
2020-04-17 10:50:03 +02:00
imx-cpufreq-dt.c
cpufreq: imx-cpufreq-dt: Correct i.MX8MN's default speed grade value
2019-12-13 08:43:28 +01:00
intel_pstate.c
cpufreq: intel_pstate: Get per-CPU max freq via MSR_HWP_CAPABILITIES if available
2021-03-04 10:26:50 +01:00
Kconfig
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
Kconfig.arm
cpufreq: ap806: fix cpufreq driver needs ap cpu clk
2020-08-19 08:16:18 +02:00
Kconfig.powerpc
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
Kconfig.x86
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
kirkwood-cpufreq.c
cpufreq: Make cpufreq_generic_init() return void
2019-07-16 10:20:11 +02:00
longhaul.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
longhaul.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
longrun.c
cpufreq: Avoid creating excessively large stack frames
2020-02-11 04:35:25 -08:00
loongson1-cpufreq.c
cpufreq: loongson1: Add missing MODULE_ALIAS
2020-12-30 11:51:20 +01:00
loongson2_cpufreq.c
cpufreq: Make cpufreq_generic_init() return void
2019-07-16 10:20:11 +02:00
Makefile
Merge branch 'cpufreq/qcom-updates' into cpufreq/arm/linux-next
2019-09-03 07:55:22 +05:30
maple-cpufreq.c
Merge branch 'pm-cpufreq'
2019-07-18 09:49:30 +02:00
mediatek-cpufreq.c
cpufreq: mediatek: Add missing MODULE_DEVICE_TABLE
2020-12-30 11:51:19 +01:00
mvebu-cpufreq.c
cpufreq: mvebu: Remove OPPs using dev_pm_opp_remove()
2018-09-19 14:56:44 -07:00
omap-cpufreq.c
Merge branch 'pm-cpufreq'
2019-07-18 09:49:30 +02:00
p4-clockmod.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
pasemi-cpufreq.c
cpufreq/pasemi: fix use-after-free in pas_cpufreq_cpu_init()
2019-07-23 09:49:10 +02:00
pcc-cpufreq.c
cpufreq: Avoid creating excessively large stack frames
2020-02-11 04:35:25 -08:00
pmac32-cpufreq.c
Merge branch 'pm-cpufreq'
2019-07-18 09:49:30 +02:00
pmac64-cpufreq.c
Merge branch 'pm-cpufreq'
2019-07-18 09:49:30 +02:00
powernow-k6.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
powernow-k7.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
powernow-k7.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
powernow-k8.c
cpufreq: powernow-k8: pass policy rather than use cpufreq_cpu_get()
2021-01-17 14:05:35 +01:00
powernow-k8.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 347
2019-06-05 17:37:08 +02:00
powernv-cpufreq.c
cpufreq: powernv: Fix frame-size-overflow in powernv_cpufreq_reboot_notifier
2020-10-29 09:57:51 +01:00
ppc_cbe_cpufreq_pervasive.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 153
2019-05-30 11:26:32 -07:00
ppc_cbe_cpufreq_pmi.c
cpufreq: Use per-policy frequency QoS
2019-10-21 02:05:21 +02:00
ppc_cbe_cpufreq.c
cpufreq: powerpc_cbe: Switch to QoS requests for freq limits
2019-08-26 10:02:01 +02:00
ppc_cbe_cpufreq.h
cpufreq: powerpc_cbe: Switch to QoS requests for freq limits
2019-08-26 10:02:01 +02:00
pxa2xx-cpufreq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
pxa3xx-cpufreq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
qcom-cpufreq-hw.c
cpufreq: qcom-hw: invoke frequency-invariance setter function
2019-08-22 11:31:04 +05:30
qcom-cpufreq-nvmem.c
cpufreq: qcom: Add missing MODULE_DEVICE_TABLE
2020-12-30 11:51:19 +01:00
qoriq-cpufreq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
raspberrypi-cpufreq.c
cpufreq: add driver for Raspberry Pi
2019-06-13 08:58:22 +05:30
s3c24xx-cpufreq-debugfs.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
s3c24xx-cpufreq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
s3c64xx-cpufreq.c
Merge branch 'pm-cpufreq'
2019-07-18 09:49:30 +02:00
s3c2410-cpufreq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
s3c2412-cpufreq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
s3c2416-cpufreq.c
Merge branch 'pm-cpufreq'
2019-07-18 09:49:30 +02:00
s3c2440-cpufreq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
s5pv210-cpufreq.c
Merge branch 'pm-cpufreq'
2019-07-18 09:49:30 +02:00
sa1100-cpufreq.c
cpufreq: Make cpufreq_generic_init() return void
2019-07-16 10:20:11 +02:00
sa1110-cpufreq.c
Merge branch 'pm-cpufreq'
2019-07-18 09:49:30 +02:00
sc520_freq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
scmi-cpufreq.c
Merge branch 'pm-opp'
2019-03-04 11:19:14 +01:00
scpi-cpufreq.c
cpufreq: scpi: Add missing MODULE_ALIAS
2020-12-30 11:51:20 +01:00
sfi-cpufreq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 235
2019-06-19 17:09:07 +02:00
sh-cpufreq.c
cpufreq: Avoid creating excessively large stack frames
2020-02-11 04:35:25 -08:00
sparc-us2e-cpufreq.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
sparc-us3-cpufreq.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
spear-cpufreq.c
cpufreq: Make cpufreq_generic_init() return void
2019-07-16 10:20:11 +02:00
speedstep-centrino.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
speedstep-ich.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
speedstep-lib.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
speedstep-lib.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
speedstep-smi.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
sti-cpufreq.c
cpufreq: st: Add missing MODULE_DEVICE_TABLE
2020-12-30 11:51:19 +01:00
sun50i-cpufreq-nvmem.c
cpufreq: sun50i: Add missing MODULE_DEVICE_TABLE
2020-12-30 11:51:20 +01:00
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: Make cpufreq_generic_init() return void
2019-07-16 10:20:11 +02:00
tegra124-cpufreq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282
2019-06-05 17:36:37 +02:00
tegra186-cpufreq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288
2019-06-05 17:36:37 +02:00
ti-cpufreq.c
cpufreq: ti-cpufreq: Mark expected switch fall-through
2019-07-30 08:10:45 +05:30
unicore2-cpufreq.c
cpufreq: Avoid creating excessively large stack frames
2020-02-11 04:35:25 -08:00
vexpress-spc-cpufreq.c
cpufreq: arm_big_little: make cpufreq_arm_bL_ops structures const
2017-11-08 23:22:20 +01:00