Commit graph

8 commits

Author SHA1 Message Date
Wei Yongjun 78e6fbf321
regulator: act8945a-regulator: make symbol act8945a_pm static
Fixes the following sparse warning:

drivers/regulator/act8945a-regulator.c:340:1: warning:
 symbol 'act8945a_pm' was not declared. Should it be static?

Fixes: 7482d6ecc6 ("regulator: act8945a-regulator: Implement PM functionalities")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-19 18:09:37 +00:00
Claudiu Beznea 22a5a4a44c
regulator: act8945a-regulator: fix 'defined but not used' compiler warning
Fix 'defined but not used' compiler warning for act8945a_suspend()
function in case CONFIG_PM_SLEEP is not defined.

Fixes: b5ebba46e6 ("regulator: act8945a-regulator: add shutdown function")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reported-by: Andrei Stefanescu <andrei.stefanescu@microchip.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-17 12:30:57 +00:00
Claudiu Beznea b5ebba46e6
regulator: act8945a-regulator: add shutdown function
Implement shutdown method to make sure the PMIC will not enter the suspend
state when the system is shutdown.

This work is based on work done by Borris Brezillon on [1].

[1] https://www.spinics.net/lists/kernel/msg2942960.html

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-12 16:59:35 +00:00
Claudiu Beznea 03ffbf9c08
regulator: act8945a-regulator: fix line over 80 chars warning
Fix line over 80 chars checkpatch.pl warning.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-12 16:59:19 +00:00
Boris Brezillon 7482d6ecc6
regulator: act8945a-regulator: Implement PM functionalities
The regulator supports a dedicated suspend mode.
Implement the appropriate ->set_suspend_xx() hooks, add support for
->set_mode(), and provide basic PM ops functionalities to setup the
regulator in a suspend state when the system is entering suspend.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
[claudiu.beznea@microchip.com: remove shutdown function, use dev_pm_ops,
 fix checkpatch warning, adapt commit message, add LDO modes support,
 move modes constants to active-semi,8945a-regulator.h, remove rdevs from
 struct act8945a_pmic, add op_mode to act8945a_pmic]
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-12 16:59:04 +00:00
Claudiu Beznea 90bc8ac220
regulator: act8945a-regulator: unlock expert registers
Unlock expert registers for act8945a.
This is based on orginal work of Boris Brezillon at [1].

[1] https://www.spinics.net/lists/kernel/msg2942960.html

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-12 16:57:44 +00:00
Bhumika Goyal 1ed1da3c10 regulator: act8945a-regulator: constify regulator_ops structure
Declare regulator_ops structure as const as it is only stored in the ops
field of a regulator_desc structure. This field is of type const, so
regulator_ops structures having this property can be made const too.

File size before: drivers/regulator/act8945a-regulator.o
   text	   data	    bss	    dec	    hex	filename
   3680	    464	      0	   4144	   1030 regulator/act8945a-regulator.o

File size after: drivers/regulator/act8945a-regulator.o
   text	   data	    bss	    dec	    hex	filename
   3936	    192	      0	   4128	   1020 regulator/act8945a-regulator.o

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-01-31 20:36:10 +00:00
Wenyou Yang 38c0996104 regulator: act8945a: add regulator driver for ACT8945A
This patch adds new regulator driver to support ACT8945A MFD
chip's regulators.

The ACT8945A has three step-down DC/DC converters and four
low-dropout regulators.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-05 18:18:47 +00:00