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Chen-Yu Tsai 1f70517eac regulator: vctrl: Avoid lockdep warning in enable/disable ops 
[ Upstream commit 21e39809fd7c4b8ff3662f23e0168e87594c8ca8 ]

vctrl_enable() and vctrl_disable() call regulator_enable() and
regulator_disable(), respectively. However, vctrl_* are regulator ops
and should not be calling the locked regulator APIs. Doing so results in
a lockdep warning.

Instead of exporting more internal regulator ops, model the ctrl supply
as an actual supply to vctrl-regulator. At probe time this driver still
needs to use the consumer API to fetch its constraints, but otherwise
lets the regulator core handle the upstream supply for it.

The enable/disable/is_enabled ops are not removed, but now only track
state internally. This preserves the original behavior with the ops
being available, but one could argue that the original behavior was
already incorrect: the internal state would not match the upstream
supply if that supply had another consumer that enabled the supply,
while vctrl-regulator was not enabled.

The lockdep warning is as follows:

	WARNING: possible circular locking dependency detected
	5.14.0-rc6 #2 Not tainted
	------------------------------------------------------
	swapper/0/1 is trying to acquire lock:
	ffffffc011306d00 (regulator_list_mutex){+.+.}-{3:3}, at:
		regulator_lock_dependent (arch/arm64/include/asm/current.h:19
					  include/linux/ww_mutex.h:111
					  drivers/regulator/core.c:329)

	but task is already holding lock:
	ffffff8004a77160 (regulator_ww_class_mutex){+.+.}-{3:3}, at:
		regulator_lock_recursive (drivers/regulator/core.c:156
					  drivers/regulator/core.c:263)

	which lock already depends on the new lock.

	the existing dependency chain (in reverse order) is:

	-> #2 (regulator_ww_class_mutex){+.+.}-{3:3}:
	__mutex_lock_common (include/asm-generic/atomic-instrumented.h:606
			     include/asm-generic/atomic-long.h:29
			     kernel/locking/mutex.c:103
			     kernel/locking/mutex.c:144
			     kernel/locking/mutex.c:963)
	ww_mutex_lock (kernel/locking/mutex.c:1199)
	regulator_lock_recursive (drivers/regulator/core.c:156
				  drivers/regulator/core.c:263)
	regulator_lock_dependent (drivers/regulator/core.c:343)
	regulator_enable (drivers/regulator/core.c:2808)
	set_machine_constraints (drivers/regulator/core.c:1536)
	regulator_register (drivers/regulator/core.c:5486)
	devm_regulator_register (drivers/regulator/devres.c:196)
	reg_fixed_voltage_probe (drivers/regulator/fixed.c:289)
	platform_probe (drivers/base/platform.c:1427)
	[...]

	-> #1 (regulator_ww_class_acquire){+.+.}-{0:0}:
	regulator_lock_dependent (include/linux/ww_mutex.h:129
				  drivers/regulator/core.c:329)
	regulator_enable (drivers/regulator/core.c:2808)
	set_machine_constraints (drivers/regulator/core.c:1536)
	regulator_register (drivers/regulator/core.c:5486)
	devm_regulator_register (drivers/regulator/devres.c:196)
	reg_fixed_voltage_probe (drivers/regulator/fixed.c:289)
	[...]

	-> #0 (regulator_list_mutex){+.+.}-{3:3}:
	__lock_acquire (kernel/locking/lockdep.c:3052 (discriminator 4)
			kernel/locking/lockdep.c:3174 (discriminator 4)
			kernel/locking/lockdep.c:3789 (discriminator 4)
			kernel/locking/lockdep.c:5015 (discriminator 4))
	lock_acquire (arch/arm64/include/asm/percpu.h:39
		      kernel/locking/lockdep.c:438
		      kernel/locking/lockdep.c:5627)
	__mutex_lock_common (include/asm-generic/atomic-instrumented.h:606
			     include/asm-generic/atomic-long.h:29
			     kernel/locking/mutex.c:103
			     kernel/locking/mutex.c:144
			     kernel/locking/mutex.c:963)
	mutex_lock_nested (kernel/locking/mutex.c:1125)
	regulator_lock_dependent (arch/arm64/include/asm/current.h:19
				  include/linux/ww_mutex.h:111
				  drivers/regulator/core.c:329)
	regulator_enable (drivers/regulator/core.c:2808)
	vctrl_enable (drivers/regulator/vctrl-regulator.c:400)
	_regulator_do_enable (drivers/regulator/core.c:2617)
	_regulator_enable (drivers/regulator/core.c:2764)
	regulator_enable (drivers/regulator/core.c:308
			  drivers/regulator/core.c:2809)
	_set_opp (drivers/opp/core.c:819 drivers/opp/core.c:1072)
	dev_pm_opp_set_rate (drivers/opp/core.c:1164)
	set_target (drivers/cpufreq/cpufreq-dt.c:62)
	__cpufreq_driver_target (drivers/cpufreq/cpufreq.c:2216
				 drivers/cpufreq/cpufreq.c:2271)
	cpufreq_online (drivers/cpufreq/cpufreq.c:1488 (discriminator 2))
	cpufreq_add_dev (drivers/cpufreq/cpufreq.c:1563)
	subsys_interface_register (drivers/base/bus.c:?)
	cpufreq_register_driver (drivers/cpufreq/cpufreq.c:2819)
	dt_cpufreq_probe (drivers/cpufreq/cpufreq-dt.c:344)
	[...]

	other info that might help us debug this:

	Chain exists of:
	  regulator_list_mutex --> regulator_ww_class_acquire --> regulator_ww_class_mutex

	 Possible unsafe locking scenario:

	       CPU0                    CPU1
	       ----                    ----
	  lock(regulator_ww_class_mutex);
				       lock(regulator_ww_class_acquire);
				       lock(regulator_ww_class_mutex);
	  lock(regulator_list_mutex);

	 *** DEADLOCK ***

	6 locks held by swapper/0/1:
	#0: ffffff8002d32188 (&dev->mutex){....}-{3:3}, at:
		__device_driver_lock (drivers/base/dd.c:1030)
	#1: ffffffc0111a0520 (cpu_hotplug_lock){++++}-{0:0}, at:
		cpufreq_register_driver (drivers/cpufreq/cpufreq.c:2792 (discriminator 2))
	#2: ffffff8002a8d918 (subsys mutex#9){+.+.}-{3:3}, at:
		subsys_interface_register (drivers/base/bus.c:1033)
	#3: ffffff800341bb90 (&policy->rwsem){+.+.}-{3:3}, at:
		cpufreq_online (include/linux/bitmap.h:285
				include/linux/cpumask.h:405
				drivers/cpufreq/cpufreq.c:1399)
	#4: ffffffc011f0b7b8 (regulator_ww_class_acquire){+.+.}-{0:0}, at:
		regulator_enable (drivers/regulator/core.c:2808)
	#5: ffffff8004a77160 (regulator_ww_class_mutex){+.+.}-{3:3}, at:
		regulator_lock_recursive (drivers/regulator/core.c:156
		drivers/regulator/core.c:263)

	stack backtrace:
	CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.14.0-rc6 #2 7c8f8996d021ed0f65271e6aeebf7999de74a9fa
	Hardware name: Google Scarlet (DT)
	Call trace:
	dump_backtrace (arch/arm64/kernel/stacktrace.c:161)
	show_stack (arch/arm64/kernel/stacktrace.c:218)
	dump_stack_lvl (lib/dump_stack.c:106 (discriminator 2))
	dump_stack (lib/dump_stack.c:113)
	print_circular_bug (kernel/locking/lockdep.c:?)
	check_noncircular (kernel/locking/lockdep.c:?)
	__lock_acquire (kernel/locking/lockdep.c:3052 (discriminator 4)
			kernel/locking/lockdep.c:3174 (discriminator 4)
			kernel/locking/lockdep.c:3789 (discriminator 4)
			kernel/locking/lockdep.c:5015 (discriminator 4))
	lock_acquire (arch/arm64/include/asm/percpu.h:39
		      kernel/locking/lockdep.c:438
		      kernel/locking/lockdep.c:5627)
	__mutex_lock_common (include/asm-generic/atomic-instrumented.h:606
			     include/asm-generic/atomic-long.h:29
			     kernel/locking/mutex.c:103
			     kernel/locking/mutex.c:144
			     kernel/locking/mutex.c:963)
	mutex_lock_nested (kernel/locking/mutex.c:1125)
	regulator_lock_dependent (arch/arm64/include/asm/current.h:19
				  include/linux/ww_mutex.h:111
				  drivers/regulator/core.c:329)
	regulator_enable (drivers/regulator/core.c:2808)
	vctrl_enable (drivers/regulator/vctrl-regulator.c:400)
	_regulator_do_enable (drivers/regulator/core.c:2617)
	_regulator_enable (drivers/regulator/core.c:2764)
	regulator_enable (drivers/regulator/core.c:308
			  drivers/regulator/core.c:2809)
	_set_opp (drivers/opp/core.c:819 drivers/opp/core.c:1072)
	dev_pm_opp_set_rate (drivers/opp/core.c:1164)
	set_target (drivers/cpufreq/cpufreq-dt.c:62)
	__cpufreq_driver_target (drivers/cpufreq/cpufreq.c:2216
				 drivers/cpufreq/cpufreq.c:2271)
	cpufreq_online (drivers/cpufreq/cpufreq.c:1488 (discriminator 2))
	cpufreq_add_dev (drivers/cpufreq/cpufreq.c:1563)
	subsys_interface_register (drivers/base/bus.c:?)
	cpufreq_register_driver (drivers/cpufreq/cpufreq.c:2819)
	dt_cpufreq_probe (drivers/cpufreq/cpufreq-dt.c:344)
	[...]

Reported-by: Brian Norris <briannorris@chromium.org>
Fixes: f8702f9e4a ("regulator: core: Use ww_mutex for regulators locking")
Fixes: e9153311491d ("regulator: vctrl-regulator: Avoid deadlock getting and setting the voltage")
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20210825033704.3307263-3-wenst@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2021-09-15 09:47:29 +02:00
..
88pg86x.c regulator: 88pg86x: new i2c dual regulator chip 2018-03-09 13:01:17 +00:00
88pm800-regulator.c Merge branch 'regulator-5.3' into regulator-next 2019-07-04 17:34:32 +01:00
88pm8607.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
Kconfig regulator: mt6358: Add BROKEN dependency while waiting for MFD to merge 2019-08-30 12:29:22 +01:00
Makefile regulator: mt6358: Add support for MT6358 regulator 2019-08-28 11:51:27 +01:00
aat2870-regulator.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336 2019-06-05 17:37:07 +02:00
ab3100.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
ab8500-ext.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 197 2019-05-30 11:29:22 -07:00
ab8500.c regulator: ab8500: Remove AB8505 USB regulator 2020-01-09 10:20:04 +01:00
act8865-regulator.c regulator: act8865: operating mode and suspend state support 2019-08-15 18:10:40 +01:00
act8945a-regulator.c regulator: act8945a-regulator: fix ldo register addresses in set_mode hook 2019-08-13 12:41:46 +01:00
ad5398.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 149 2019-05-30 11:25:18 -07:00
anatop-regulator.c regulator: anatop: Remove unneeded fields from struct anatop_regulator 2019-04-10 12:23:04 +01:00
arizona-ldo1.c regulator: arizona-ldo1: Add support for Cirrus Logic Madera codecs 2019-05-21 21:23:24 +01:00
arizona-micsupp.c regulator: arizona-micsupp: Delete unused include 2019-06-03 17:51:20 +01:00
as3711-regulator.c regulator: as3711: Remove struct as3711_regulator_info and as3711_regulator 2019-03-18 12:10:45 +00:00
as3722-regulator.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
axp20x-regulator.c regulator: axp20x: Fix reference cout leak 2021-03-04 10:26:29 +01:00
bcm590xx-regulator.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
bd718x7-regulator.c regulator: bd718x7: Add enable times 2021-01-19 18:26:14 +01:00
bd9571mwv-regulator.c regulator: bd9571mwv: Fix AVS and DVFS voltage range 2021-04-14 08:24:13 +02:00
bd70528-regulator.c regulator: bd70528: Add MODULE_ALIAS to allow module auto loading 2020-01-26 10:01:05 +01:00
core.c regulator: core: resolve supply for boot-on/always-on regulators 2021-06-16 11:59:43 +02:00
cpcap-regulator.c regulator: cpcap: Spelling s/configuraion/configuration/ 2019-06-07 13:14:37 +01:00
da903x.c regulator: da9xxx: Switch to SPDX identifier 2019-05-03 15:07:39 +09:00
da9052-regulator.c regulator: da9052: Ensure enough delay time for .set_voltage_time_sel 2021-07-14 16:53:15 +02:00
da9055-regulator.c regulator: da9xxx: Switch to SPDX identifier 2019-05-03 15:07:39 +09:00
da9062-regulator.c regulator: da9062: fix suspend_enable/disable preparation 2019-09-23 14:21:05 -07:00
da9063-regulator.c regulator: Remove dev_err() usage after platform_get_irq() 2019-08-02 12:13:23 +01:00
da9210-regulator.c regulator: da9xxx: Switch to SPDX identifier 2019-05-03 15:07:39 +09:00
da9210-regulator.h regulator: da9xxx: Switch to SPDX identifier 2019-05-03 15:07:39 +09:00
da9211-regulator.c regulator: da9211: fix obtaining "enable" GPIO 2019-09-11 11:17:07 +01:00
da9211-regulator.h regulator: da9xxx: Switch to SPDX identifier 2019-05-03 15:07:39 +09:00
db8500-prcmu.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 197 2019-05-30 11:29:22 -07:00
dbx500-prcmu.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 197 2019-05-30 11:29:22 -07:00
dbx500-prcmu.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 197 2019-05-30 11:29:22 -07:00
devres.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
dummy.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
dummy.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
fan53555.c regulator: fan53555: Switch to SPDX identifier 2019-04-26 10:38:22 +01:00
fixed-helper.c regulator: fixed: Convert to use GPIO descriptor only 2018-09-17 14:32:22 -07:00
fixed.c regulator: fixed: Prevent NULL pointer dereference when !CONFIG_OF 2019-09-23 14:19:52 -07:00
gpio-regulator.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
helpers.c regulator: core: Add regulator_is_equal() helper 2020-02-11 04:35:48 -08:00
hi655x-regulator.c regulator: hi655x: Fix pass wrong pointer to config.driver_data 2021-07-14 16:53:23 +02:00
hi6421-regulator.c regulator: hi6421: Fix getting wrong drvdata 2021-07-28 13:30:55 +02:00
hi6421v530-regulator.c regulator: hi6xxx: Switch to SPDX identifier 2019-05-02 11:16:40 +09:00
internal.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
isl6271a-regulator.c regulator: isl6271a: Constify isl_core_ops and isl_fixed_ops 2019-01-28 15:30:58 +00:00
isl9305.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
lm363x-regulator.c regulator: lm363x: Fix n_voltages setting for lm36274 2019-07-22 13:18:13 +01:00
lochnagar-regulator.c regulator: lochnagar: Add on_off_delay for VDDCORE 2019-10-01 17:46:01 +01:00
lp872x.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
lp873x-regulator.c regulator: lp873x: Convert to use regulator_set/get_current_limit_regmap 2019-03-03 23:47:06 +00:00
lp3971.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
lp3972.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
lp8755.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
lp8788-buck.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
lp8788-ldo.c regulator: lp8788-ldo: make array en_mask static const, makes object smaller 2019-09-09 10:53:48 +01:00
lp87565-regulator.c regulator: lp87565: Simplify lp87565_buck_set_ramp_delay 2019-09-09 13:22:49 +01:00
ltc3589.c regulator: ltc3589: Switch to SPDX identifier 2019-04-26 10:38:20 +01:00
ltc3676.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
max1586.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
max8649.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
max8660.c regulator: max8660: remove redundant assignment of variable ret 2019-08-15 15:09:21 +01:00
max8907-regulator.c regulator: max8907: Fix the usage of uninitialized variable in max8907_regulator_probe() 2019-12-31 16:43:39 +01:00
max8925-regulator.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
max8952.c Linux 5.2-rc4 2019-06-18 19:12:47 +01:00
max8973-regulator.c regulator: max8973: Let core handle GPIO descriptor 2018-12-11 01:04:31 +00:00
max8997-regulator.c regulator: Use of_node_name_eq for node name comparisons 2018-12-06 19:56:51 +00:00
max8998.c regulator: max8998: Factor out struct voltage_map_desc 2019-04-15 09:45:15 +01:00
max14577-regulator.c regulator: max14577: Get rid of match_init_data/match_of_node functions 2019-03-13 15:12:47 +00:00
max77620-regulator.c regulator: max77620: Use device_set_of_node_from_dev() 2021-06-16 11:59:43 +02:00
max77650-regulator.c regulator: max77650: use vsel_step 2019-07-04 17:31:37 +01:00
max77686-regulator.c regulator: max77686: fix obtaining "maxim,ena" GPIO 2019-09-11 11:16:51 +01:00
max77693-regulator.c regulator: maxim: Add SPDX license identifiers 2018-08-08 10:52:50 +01:00
max77802-regulator.c regulator: max77802: Drop unused includes 2019-06-10 15:40:58 +01:00
mc13xxx-regulator-core.c regulator: mc13xxx: Constify regulator_ops variables 2019-03-04 00:01:08 +00:00
mc13xxx.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mc13783-regulator.c regulator: mc13xxx: Constify regulator_ops variables 2019-03-04 00:01:08 +00:00
mc13892-regulator.c regulator: mc13xxx: Constify regulator_ops variables 2019-03-04 00:01:08 +00:00
mcp16502.c regulator: mcp16502: Remove setup_regulators function 2019-04-11 12:17:32 +01:00
mt6311-regulator.c regulator: mt63xx: Switch to SPDX identifier 2019-04-26 10:38:23 +01:00
mt6311-regulator.h regulator: mt63xx: Switch to SPDX identifier 2019-04-26 10:38:23 +01:00
mt6323-regulator.c regulator: mt63xx: Switch to SPDX identifier 2019-04-26 10:38:23 +01:00
mt6358-regulator.c regulator: mt6358: Fix vdram2 .vsel_mask 2021-07-14 16:53:15 +02:00
mt6380-regulator.c regulator: mt63xx: Switch to SPDX identifier 2019-04-26 10:38:23 +01:00
mt6397-regulator.c regulator: mt63xx: Switch to SPDX identifier 2019-04-26 10:38:23 +01:00
of_regulator.c regulator: Fixes for v5.4 2019-10-23 15:31:17 -04:00
palmas-regulator.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
pbias-regulator.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
pcap-regulator.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
pcf50633-regulator.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
pfuze100-regulator.c regulator: pfuze100: limit pfuze-support-disable-sw to pfuze{100,200} 2020-11-24 13:29:22 +01:00
pv88060-regulator.c regulator: pv880x0: Switch to SPDX identifier 2019-05-03 15:05:52 +09:00
pv88060-regulator.h regulator: pv880x0: Switch to SPDX identifier 2019-05-03 15:05:52 +09:00
pv88080-regulator.c regulator: pv880x0: Switch to SPDX identifier 2019-05-03 15:05:52 +09:00
pv88080-regulator.h regulator: pv880x0: Switch to SPDX identifier 2019-05-03 15:05:52 +09:00
pv88090-regulator.c regulator: pv880x0: Switch to SPDX identifier 2019-05-03 15:05:52 +09:00
pv88090-regulator.h regulator: pv880x0: Switch to SPDX identifier 2019-05-03 15:05:52 +09:00
pwm-regulator.c regulator: pwm: Fix machine constraints application 2020-09-23 12:40:35 +02:00
qcom-rpmh-regulator.c regulator: qcom-rpmh: Correct the pmic5_hfsmps515 buck 2021-03-30 14:35:22 +02:00
qcom_rpm-regulator.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284 2019-06-05 17:36:37 +02:00
qcom_smd-regulator.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284 2019-06-05 17:36:37 +02:00
qcom_spmi-regulator.c regulator: qcom_spmi: Do NULL check for lvs 2019-06-24 17:26:15 +01:00
rc5t583-regulator.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
rk808-regulator.c regulator: rk808: Lower log level on optional GPIOs being not available 2020-02-24 08:36:33 +01:00
rn5t618-regulator.c regulator: rn5t618: fix module aliases 2020-01-12 12:21:34 +01:00
rt5033-regulator.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 450 2019-06-05 17:37:18 +02:00
s2mpa01.c regulator: s2mpa01: Remove unused define for S2MPA01_REGULATOR_CNT 2019-04-10 12:22:50 +01:00
s2mps11.c regulator: s2mps11: Consistently use local variable 2019-09-10 11:03:30 +01:00
s5m8767.c regulator: s5m8767: Drop regulators OF node reference 2021-03-04 10:26:30 +01:00
sc2731-regulator.c regulator: sc2731: Constify regulators 2019-03-26 13:25:35 +00:00
sky81452-regulator.c regulator: sky81452: Switch to SPDX identifier 2019-04-26 10:38:27 +01:00
slg51000-regulator.c regulator: slg51000: use devm_gpiod_get_optional() in probe 2019-09-09 10:58:15 +01:00
slg51000-regulator.h regulator: slg51000: add slg51000 regulator driver 2019-05-13 11:07:43 +01:00
stm32-booster.c regulator: stm32-booster: Remove .min_uV and .list_voltage for fixed regulator 2019-07-23 12:28:01 +01:00
stm32-pwr.c regulator: stm32-pwr: Remove unneeded .min_uV and .list_volage 2019-05-03 15:07:15 +09:00
stm32-vrefbuf.c regulator: stm32-vrefbuf: fix a possible overshoot when re-enabling 2020-03-12 13:00:29 +01:00
stpmic1_regulator.c Merge branch 'regulator-5.0' into regulator-5.1 stpmic1 const/range 2019-02-19 11:06:41 +00:00
stw481x-vmmc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
sy8106a-regulator.c regulator: sy8106a: Get rid of struct sy8106a 2019-04-26 10:38:25 +01:00
sy8824x.c regulator: sy8824x: add prefixes to BUCK_EN and MODE macros 2019-08-30 12:39:47 +01:00
ti-abb-regulator.c regulator: ti-abb: Fix array out of bound read access on the first transition 2020-11-24 13:29:18 +01:00
tps6105x-regulator.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
tps6507x-regulator.c regulator: tps6507x: Fix boot regression due to testing wrong init_data pointer 2019-05-16 17:11:47 +01:00
tps6524x-regulator.c regulator: tps6524x: Remove *rdev[N_REGULATORS] from struct tps6524x 2019-04-15 09:44:41 +01:00
tps6586x-regulator.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
tps51632-regulator.c regulator: tps51632: Fix setting ramp delay 2016-05-31 16:38:01 +01:00
tps62360-regulator.c regulator: drivers: Drop owner assignment from i2c_driver 2015-07-14 18:53:01 +01:00
tps65023-regulator.c regulator: tps65023: Fix inverted core enable logic. 2017-04-18 18:55:05 +01:00
tps65086-regulator.c regulator: tps65086: Fix tps65086_ldoa1_ranges for selector 0xB 2019-03-21 15:00:07 +00:00
tps65090-regulator.c gpio: Fix return value mismatch of function gpiod_get_from_of_node() 2019-06-25 15:26:24 +01:00
tps65132-regulator.c regulator: tps65132: Stop parsing DT when gpio is not found 2019-09-05 19:07:30 +01:00
tps65217-regulator.c Merge branch 'regulator-5.2' into regulator-next 2019-05-06 22:52:14 +09:00
tps65218-regulator.c regulator: tps65218: Convert to use regulator_get_current_limit_regmap 2019-04-15 09:44:09 +01:00
tps65910-regulator.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
tps65912-regulator.c headers: separate linux/mod_devicetable.h from linux/platform_device.h 2018-07-07 17:52:26 +02:00
tps80031-regulator.c regulator: tps80031: Switch to SPDX identifier 2019-04-16 17:30:56 +01:00
twl-regulator.c regulator: twl: voltage lists for vdd1/2 on twl4030 2019-08-15 15:08:41 +01:00
twl6030-regulator.c regulator: twl6030: workaround the VMMC reset behavior 2019-08-09 18:04:22 +01:00
uniphier-regulator.c regulator: uniphier: Add missing MODULE_DEVICE_TABLE 2021-07-14 16:53:10 +02:00
userspace-consumer.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
vctrl-regulator.c regulator: vctrl: Avoid lockdep warning in enable/disable ops 2021-09-15 09:47:29 +02:00
vexpress-regulator.c regulator: vexpress: Switch to SPDX identifier 2019-05-02 11:16:18 +09:00
virtual.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
wm831x-dcdc.c regulator: wm831x: Convert to use GPIO descriptors 2019-06-12 13:59:11 +01:00
wm831x-isink.c regulator: wm831x: Switch to SPDX identifier 2019-04-17 17:40:29 +01:00
wm831x-ldo.c regulator: wm831x: Switch to SPDX identifier 2019-04-17 17:40:29 +01:00
wm8350-regulator.c regulator: wm8350: Switch to SPDX identifier 2019-04-17 17:40:44 +01:00
wm8400-regulator.c regulator: wm8400: Switch to SPDX identifier 2019-04-17 17:41:00 +01:00
wm8994-regulator.c regulator: wm8994: Switch to SPDX identifier 2019-04-17 17:39:58 +01:00