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linux-stable/drivers/cpufreq
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Nícolas F. R. A. Prado 788715b5f2 cpufreq: mediatek-hw: Wait for CPU supplies before probing 
Before proceeding with the probe and enabling frequency scaling for the
CPUs, make sure that all supplies feeding the CPUs have probed.

This fixes an issue observed on MT8195-Tomato where if the
mediatek-cpufreq-hw driver enabled the hardware (by writing to
REG_FREQ_ENABLE) before the SPMI controller driver (spmi-mtk-pmif),
behind which lies the big CPU supply, probed the platform would hang
shortly after with "rcu: INFO: rcu_preempt detected stalls on
CPUs/tasks" being printed in the log.

Fixes: 4855e26bcf ("cpufreq: mediatek-hw: Add support for CPUFREQ HW")
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2024-01-23 11:39:14 +05:30
..
acpi-cpufreq.c cpufreq: acpi: Convert to platform remove callback returning void 2023-07-20 16:02:13 +05:30
amd-pstate-trace.c cpufreq: amd-pstate: Add trace for AMD P-State module 2021-12-30 18:51:39 +01:00
amd-pstate-trace.h cpufreq: amd-pstate: Add more tracepoint for AMD P-State module 2022-03-09 19:53:01 +01:00
amd-pstate-ut.c ARM cpufreq updates for 6.6 2023-08-28 14:12:05 +02:00
amd-pstate.c cpufreq/amd-pstate: Only print supported EPP values for performance governor 2023-11-29 22:04:15 +01:00
amd_freq_sensitivity.c cpufreq: amd_freq_sensitivity: Add missing pci_dev_put() 2022-11-30 19:50:04 +01:00
apple-soc-cpufreq.c cpufreq: apple-soc: Fix an IS_ERR() vs NULL check 2023-03-01 19:34:54 +01:00
armada-8k-cpufreq.c cpufreq: armada-8k: Fix parameter type warning 2023-12-18 11:22:57 +05:30
armada-37xx-cpufreq.c cpufreq: Explicitly include correct DT includes 2023-07-20 16:01:57 +05:30
bmips-cpufreq.c cpufreq: bmips-cpufreq: Use module_init and add module_exit 2022-08-30 13:49:23 +05:30
brcmstb-avs-cpufreq.c cpufreq: brcmstb-avs-cpufreq: add check for cpufreq_cpu_get's return value 2024-01-23 11:37:14 +05:30
cppc_cpufreq.c cpufreq/cppc: Move and rename cppc_cpufreq_{perf_to_khz|khz_to_perf}() 2023-12-23 15:52:35 +01:00
cpufreq-dt-platdev.c cpufreq: qcom-nvmem: Introduce cpufreq for ipq95xx 2023-11-02 11:04:53 +05:30
cpufreq-dt.c cpufreq: dt: Convert to platform remove callback returning void 2023-07-20 16:02:12 +05:30
cpufreq-dt.h
cpufreq-nforce2.c
cpufreq.c cpufreq: Use the fixed and coherent frequency for scaling capacity 2023-12-23 15:52:34 +01:00
cpufreq_conservative.c cpufreq: conservative: Simplify the condition of storing 'down_threshold' 2023-10-06 21:55:13 +02:00
cpufreq_governor.c cpufreq: governor: Free dbs_data directly when gov->init() fails 2023-08-29 20:21:35 +02:00
cpufreq_governor.h cpufreq: governor: Use kobject release() method to free dbs_data 2022-04-13 15:22:41 +02:00
cpufreq_governor_attr_set.c cpufreq: Move to_gov_attr_set() to cpufreq.h 2022-02-04 19:22:34 +01:00
cpufreq_ondemand.c cpufreq: ondemand: Use cpumask_var_t for on-stack cpu mask 2022-07-25 20:38:01 +02:00
cpufreq_ondemand.h
cpufreq_performance.c cpufreq: Introduce CPUFREQ_GOV_STRICT_TARGET 2020-11-10 18:31:17 +01:00
cpufreq_powersave.c cpufreq: Introduce CPUFREQ_GOV_STRICT_TARGET 2020-11-10 18:31:17 +01:00
cpufreq_stats.c cpufreq: stats: Fix buffer overflow detection in trans_stats() 2023-10-24 22:02:06 +02:00
cpufreq_userspace.c cpufreq: userspace: Move is_managed indicator into per-policy structure 2023-10-06 22:01:26 +02:00
davinci-cpufreq.c cpufreq: davinci: Convert to platform remove callback returning void 2023-07-20 16:02:13 +05:30
e_powersaver.c cpufreq: e_powersaver: remove unreachable break 2020-10-27 18:42:54 +01:00
elanfreq.c
freq_table.c Updates for 6.4 2023-04-20 19:30:01 +02:00
gx-suspmod.c
highbank-cpufreq.c cpufreq: Add __init annotation to module init funcs 2022-09-26 11:15:04 +05:30
imx-cpufreq-dt.c cpufreq: imx-cpufreq-dt: Convert to platform remove callback returning void 2023-07-20 16:02:13 +05:30
imx6q-cpufreq.c cpufreq: imx6: use regmap to read ocotp register 2024-01-23 11:36:21 +05:30
intel_pstate.c cpufreq: intel_pstate: Update hybrid scaling factor for Meteor Lake 2024-01-10 15:02:25 +01:00
Kconfig arch: Remove Itanium (IA-64) architecture 2023-09-11 08:13:17 +00:00
Kconfig.arm cpufreq: arm: Kconfig: Add i.MX7 to supported SoC for ARM_IMX_CPUFREQ_DT 2023-10-25 15:51:21 +05:30
Kconfig.powerpc
Kconfig.x86 cpufreq: amd-pstate: Add a kernel config option to set default mode 2023-06-21 18:44:56 +02:00
kirkwood-cpufreq.c cpufreq: kirkwood: Convert to platform remove callback returning void 2023-07-20 16:02:13 +05:30
longhaul.c cpufreq: longhaul: Make array speeds static const 2022-11-03 19:13:34 +01:00
longhaul.h
longrun.c
loongson2_cpufreq.c cpufreq: loongson2: Remove unused linux/sched.h headers 2021-06-07 17:43:52 +02:00
Makefile arch: Remove Itanium (IA-64) architecture 2023-09-11 08:13:17 +00:00
maple-cpufreq.c cpufreq: Adjust includes to remove of_device.h 2023-04-13 17:46:35 -05:00
mediatek-cpufreq-hw.c cpufreq: mediatek-hw: Wait for CPU supplies before probing 2024-01-23 11:39:14 +05:30
mediatek-cpufreq.c cpufreq: mediatek-hw: Remove unused define 2023-08-11 06:15:21 +05:30
mvebu-cpufreq.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 2) 2022-06-10 14:51:35 +02:00
omap-cpufreq.c cpufreq: omap: Convert to platform remove callback returning void 2023-07-20 16:02:14 +05:30
p4-clockmod.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
pasemi-cpufreq.c cpufreq: Prepare cleanup of powerpc's asm/prom.h 2022-04-13 17:18:45 +02:00
pcc-cpufreq.c cpufreq: pcc: Fix the potentinal scheduling delays in target_index() 2023-08-29 20:41:29 +02:00
pmac32-cpufreq.c cpufreq: pmac32: Use of_property_read_reg() to parse "reg" 2023-09-27 16:47:09 +05:30
pmac64-cpufreq.c cpufreq: Adjust includes to remove of_device.h 2023-04-13 17:46:35 -05:00
powernow-k6.c
powernow-k7.c
powernow-k7.h
powernow-k8.c cpufreq: powernow-k8: Use related_cpus instead of cpus in driver.exit() 2023-08-28 12:27:30 +05:30
powernow-k8.h
powernv-cpufreq.c cpufreq: Introducing CPUFREQ_RELATION_E 2021-10-05 16:33:05 +02:00
ppc_cbe_cpufreq.c cpufreq: Explicitly include correct DT includes 2023-07-20 16:01:57 +05:30
ppc_cbe_cpufreq.h
ppc_cbe_cpufreq_pervasive.c
ppc_cbe_cpufreq_pmi.c cpufreq: Explicitly include correct DT includes 2023-07-20 16:01:57 +05:30
pxa2xx-cpufreq.c cpufreq: pxa3: move clk register access to clk driver 2022-05-07 22:55:49 +02:00
pxa3xx-cpufreq.c cpufreq: pxa3: move clk register access to clk driver 2022-05-07 22:55:49 +02:00
qcom-cpufreq-hw.c cpufreq: qcom-cpufreq-hw: add support for 4 freq domains 2023-08-23 20:31:08 +05:30
qcom-cpufreq-nvmem.c cpufreq: qcom-nvmem: Preserve PM domain votes in system suspend 2023-11-23 13:08:01 +05:30
qoriq-cpufreq.c cpufreq: qoriq: Convert to platform remove callback returning void 2023-07-20 16:02:13 +05:30
raspberrypi-cpufreq.c cpufreq: raspberrypi: Convert to platform remove callback returning void 2023-07-20 16:02:13 +05:30
s3c64xx-cpufreq.c
s5pv210-cpufreq.c cpufreq: Introducing CPUFREQ_RELATION_E 2021-10-05 16:33:05 +02:00
sa1110-cpufreq.c ARM: sa1100: remove unused board files 2023-01-12 10:53:12 +01:00
sc520_freq.c cpufreq: sc520_freq: add 'fallthrough' to one case 2021-05-21 18:52:13 +02:00
scmi-cpufreq.c cpufreq: scmi: process the result of devm_of_clk_add_hw_provider() 2023-12-06 11:40:11 +05:30
scpi-cpufreq.c cpufreq: scpi: Convert to platform remove callback returning void 2023-07-20 16:02:12 +05:30
sh-cpufreq.c cpufreq: sh: Remove sh_cpufreq_cpu_ready() 2021-09-02 18:04:17 +02:00
sparc-us2e-cpufreq.c cpufreq: sparc: Don't mark cpufreq callbacks with __init 2023-07-12 12:45:18 +02:00
sparc-us3-cpufreq.c cpufreq: sparc: Don't mark cpufreq callbacks with __init 2023-07-12 12:45:18 +02:00
spear-cpufreq.c cpufreq: Adjust includes to remove of_device.h 2023-04-13 17:46:35 -05:00
speedstep-centrino.c
speedstep-ich.c
speedstep-lib.c cpufreq: speedstep: remove unneeded semicolon 2020-10-28 18:04:07 +01:00
speedstep-lib.h
speedstep-smi.c
sti-cpufreq.c cpufreq: Explicitly include correct DT includes 2023-07-20 16:01:57 +05:30
sun50i-cpufreq-nvmem.c cpufreq: sun50i: Convert to platform remove callback returning void 2023-07-20 16:02:12 +05:30
tegra20-cpufreq.c Devicetree updates for v6.4, part 2: 2023-04-27 10:09:05 -07:00
tegra124-cpufreq.c Devicetree updates for v6.4, part 2: 2023-04-27 10:09:05 -07:00
tegra186-cpufreq.c cpufreq: tegra186: Convert to platform remove callback returning void 2023-07-20 16:02:13 +05:30
tegra194-cpufreq.c cpufreq: tegra194: remove redundant AND with cpu_online_mask 2023-10-10 11:06:03 +05:30
ti-cpufreq.c cpufreq: ti-cpufreq: Add opp support for am62p5 SoCs 2023-10-12 09:10:22 +05:30
vexpress-spc-cpufreq.c cpufreq: vexpress: Convert to platform remove callback returning void 2023-07-20 16:02:12 +05:30