AuxXxilium/linux_dsm_epyc7002
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f19b00da8e
linux_dsm_epyc7002/drivers/regulator
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Kim, Milo f19b00da8e regulator: core: support shared enable GPIO concept 
A Regulator can be enabled by external GPIO pin.
 This is configurable in the regulator_config.
 At this moment, the GPIO can be owned by only one regulator device.
 In some devices, multiple regulators are enabled by shared one GPIO pin.
 This patch extends this limitation, enabling shared enable GPIO of regulators.

 New list for enable GPIO: 'regulator_ena_gpio_list'
   This manages enable GPIO list.

 New structure for supporting shared enable GPIO: 'regulator_enable_gpio'
   The enable count is used for balancing GPIO control count.
   This count is incremented when GPIO is enabled.
   On the other hand, it's decremented when GPIO is disabled.

 Reference count: 'request_count'
   The reference count, 'request_count' is incremented/decremented on
   requesting/freeing the GPIO. This count makes sure only free the GPIO
   when it has no users.

 How it works
   If the GPIO is already used, skip requesting new GPIO usage.
   The GPIO is new one, request GPIO function and add it to the list of
   enable GPIO.
   This list is used for balancing enable GPIO count and pin control.

 Updating a GPIO and invert code moved
   'ena_gpio' and 'ena_gpio_invert' of the regulator_config were moved to
    new function, regulator_ena_gpio_request().
    Use regulator_enable_pin structure rather than regulator_dev.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Reviewed-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-04 10:37:56 +08:00
..
88pm8607.c Merge remote-tracking branch 'regulator/topic/of' into regulator-next 2013-02-19 12:42:52 +00:00
aat2870-regulator.c regulator: remove use of __devexit 2012-11-20 10:53:38 +09:00
ab3100.c regulator: remove use of __devexit 2012-11-20 10:53:38 +09:00
ab8500.c regulator: remove use of __devexit 2012-11-20 10:53:38 +09:00
ad5398.c regulator: remove use of __devexit 2012-11-20 10:53:38 +09:00
anatop-regulator.c regulator: anatop: improve precision of delay time 2013-02-08 11:15:00 +00:00
arizona-ldo1.c Merge remote-tracking branch 'regulator/topic/hotplug' into regulator-next 2012-12-10 12:42:55 +09:00
arizona-micsupp.c regulator: arizona-micsupp: Enable bypass in default constraints 2013-01-13 21:31:02 +09:00
as3711-regulator.c regulator: as3711: Fix checking if no platform initialization data 2013-02-13 12:56:51 +00:00
core.c regulator: core: support shared enable GPIO concept 2013-03-04 10:37:56 +08:00
da903x.c regulator: remove use of __devexit 2012-11-20 10:53:38 +09:00
da9052-regulator.c Merge remote-tracking branch 'regulator/topic/of' into regulator-next 2013-02-19 12:42:52 +00:00
da9055-regulator.c Merge remote-tracking branch 'regulator/topic/da9055' into regulator-next 2013-02-19 12:42:33 +00:00
db8500-prcmu.c regulator: remove use of __devinit 2012-11-20 10:31:26 +09:00
dbx500-prcmu.c regulators: db8500: Fix compile failure for drivers/regulator/dbx500-prcmu.c 2013-01-26 15:30:06 +08:00
dbx500-prcmu.h regulators/db8500: split off shared dbx500 code 2012-01-20 12:01:29 +00:00
dummy.c regulator: remove use of __devinit 2012-11-20 10:31:26 +09:00
dummy.h regulator: fix build when CONFIG_REGULATOR_DUMMY=n 2010-10-28 22:40:32 +01:00
fan53555.c regulator: remove use of __devexit 2012-11-20 10:53:38 +09:00
fixed-helper.c regulator: extend the fixed dummy voltage regulator to accept voltage 2012-06-19 23:22:30 +01:00
fixed.c Drivers: regulator: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
gpio-regulator.c regulator: gpio-regulator: Staticize of_get_gpio_regulator_config() 2013-01-29 00:44:17 +08:00
isl6271a-regulator.c regulator: remove use of __devexit 2012-11-20 10:53:38 +09:00
Kconfig Merge remote-tracking branch 'regulator/topic/lp8755' into regulator-next 2013-02-19 12:42:46 +00:00
lp872x.c Merge remote-tracking branch 'regulator/topic/lp872x' into regulator-next 2013-02-19 12:42:39 +00:00
lp3971.c regulator: lp3971: Convert to get_voltage_sel 2012-12-24 16:26:50 +00:00
lp3972.c regulator: lp3972: Convert to get_voltage_sel 2013-01-08 11:07:05 +00:00
lp8755.c regulator: lp8755: Use LP8755_BUCK_MAX instead of magic number 2013-01-27 11:00:25 +08:00
lp8788-buck.c regulator: lp8788-buck: Remove buck[1|2]_vout_addr array 2013-01-17 16:08:08 +09:00
lp8788-ldo.c regulator: lp8788-ldo: Use ldo->en_pin to check if regulator is enabled by external pin 2013-01-07 11:13:08 +00:00
Makefile regulator: lp8755: new driver for LP8755 2012-12-24 16:32:34 +00:00
max1586.c Merge remote-tracking branch 'regulator/topic/max1586' into regulator-next 2012-12-10 12:42:58 +09:00
max8649.c regulator: remove use of __devexit 2012-11-20 10:53:38 +09:00
max8660.c regulator: remove use of __devexit 2012-11-20 10:53:38 +09:00
max8907-regulator.c regulator: Add missing of_node_put() 2013-01-30 18:50:27 +08:00
max8925-regulator.c regulator: Add missing of_node_put() 2013-01-30 18:50:27 +08:00
max8952.c regulator: remove use of __devexit 2012-11-20 10:53:38 +09:00
max8973-regulator.c Drivers: regulator: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
max8997.c Merge remote-tracking branch 'regulator/topic/of' into regulator-next 2013-02-19 12:42:52 +00:00
max8998.c Merge remote-tracking branch 'regulator/topic/max8998' into regulator-next 2013-02-19 12:42:49 +00:00
max77686.c regulator: max77686: Reuse rdev_get_id() function. 2013-02-14 12:11:04 +00:00
mc13xxx-regulator-core.c regulator: mc13xxx: Use of_get_child_count() 2013-01-31 14:43:32 +08:00
mc13xxx.h regulator: mc13892: sanity check num_regulators parsed vs. registered 2013-01-27 11:22:30 +08:00
mc13783-regulator.c regulator: remove use of __devexit 2012-11-20 10:53:38 +09:00
mc13892-regulator.c regulator: mc13892: sanity check num_regulators parsed vs. registered 2013-01-27 11:22:30 +08:00
of_regulator.c regulator: clear state each invocation of of_regulator_match 2013-01-30 10:11:06 +08:00
palmas-regulator.c Merge remote-tracking branch 'regulator/topic/palmas' into regulator-next 2013-02-19 12:43:07 +00:00
pcap-regulator.c regulator: remove use of __devexit 2012-11-20 10:53:38 +09:00
pcf50633-regulator.c Merge remote-tracking branch 'regulator/topic/min' into regulator-next 2012-12-10 12:43:00 +09:00
rc5t583-regulator.c regulator: remove use of __devexit 2012-11-20 10:53:38 +09:00
s2mps11.c regulator: s2mps11: fix incorrect register for buck10 2013-01-31 14:45:11 +08:00
s5m8767.c regulator: s5m8767: Prevent possible NULL pointer dereference 2013-02-13 12:52:19 +00:00
tps6105x-regulator.c regulator: remove use of __devexit 2012-11-20 10:53:38 +09:00
tps6507x-regulator.c regulator: tps6507x: Fix using wrong dev argument for calling of_regulator_match 2013-01-30 18:44:41 +08:00
tps6524x-regulator.c regulator: remove use of __devinit 2012-11-20 10:31:26 +09:00
tps6586x-regulator.c regulator: tps6586x: Use apply_[reg|bit] with regmap based voltage_sel operations 2012-12-24 16:34:11 +00:00
tps51632-regulator.c regulator: tps51632: Use regulator_[get|set]_voltage_sel_regmap 2013-02-13 12:58:40 +00:00
tps62360-regulator.c regulator: remove use of __devexit 2012-11-20 10:53:38 +09:00
tps65023-regulator.c regulator: remove use of __devexit 2012-11-20 10:53:38 +09:00
tps65090-regulator.c regulator: tps65090: Fix using wrong dev argument for calling of_regulator_match 2013-01-31 14:42:05 +08:00
tps65217-regulator.c regulator: tps65217: Fix using wrong dev argument for calling of_regulator_match 2013-01-24 18:58:33 +08:00
tps65910-regulator.c regulator: Add missing of_node_put() 2013-01-30 18:50:27 +08:00
tps65912-regulator.c regulator: remove use of __devexit 2012-11-20 10:53:38 +09:00
tps80031-regulator.c regulator: tps80031: Use IS_ERR to check return value of regulator_register() 2013-01-26 15:40:36 +08:00
twl-regulator.c Drivers: regulator: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
userspace-consumer.c regulator: userspace-consumer: Convert to use devm_* APIs 2012-04-18 10:26:24 +01:00
vexpress.c regulator: remove use of __devexit 2012-11-20 10:53:38 +09:00
virtual.c regulator: remove use of __devexit 2012-11-20 10:53:38 +09:00
wm831x-dcdc.c Merge remote-tracking branch 'regulator/topic/wm831x' into regulator-next 2012-12-10 12:43:33 +09:00
wm831x-isink.c regulator: remove use of __devexit 2012-11-20 10:53:38 +09:00
wm831x-ldo.c regulator: remove use of __devexit 2012-11-20 10:53:38 +09:00
wm8350-regulator.c regulator: wm8350: Reuse map_voltage() to get selector of a given uV 2012-06-17 20:53:58 +01:00
wm8400-regulator.c regulator: remove use of __devexit 2012-11-20 10:53:38 +09:00
wm8994-regulator.c regulator: remove use of __devexit 2012-11-20 10:53:38 +09:00