kernel/linux.git/include/linux/regulator/fixed.h, branch v5.0.15

regulator: fixed: Convert to use GPIO descriptor only

2018-09-17T21:32:22+00:00

As we augmented the regulator core to accept a GPIO descriptor instead of a GPIO number, we can augment the fixed GPIO regulator to look up and pass that descriptor directly from device tree or board GPIO descriptor look up tables. Some boards just auto-enumerate their fixed regulator platform devices and I have assumed they get names like "fixed-regulator.0" but it's pretty hard to guess this. I need some testing from board maintainers to be sure. Other boards are straight forward, using just plain "fixed-regulator" (ID -1) or "fixed-regulator.1" hammering down the device ID. It seems the da9055 and da9211 has never got around to actually passing any enable gpio into its platform data (not the in-tree code anyway) so we can just decide to simply pass a descriptor instead. The fixed GPIO-controlled regulator in mach-pxa/ezx.c was confusingly named "*_dummy_supply_device" while it is a very real device backed by a GPIO line. There is nothing dummy about it at all, so I renamed it with the infix *_regulator_* as part of this patch set. Intel MID portions tested by Andy. Tested-by: Andy Shevchenko # Check the x86 BCM stuff Acked-by: Tony Lindgren # OMAP1,2,3 maintainer Signed-off-by: Linus Walleij Reviewed-by: Janusz Krzysztofik Reviewed-by: Mike Rapoport Signed-off-by: Mark Brown

Merge branch 'regulator-drivers' into regulator-next

2012-07-22T18:32:00+00:00

regulator: fixed: dt: support for input supply

2012-07-05T12:49:35+00:00

Add support for input supply in DT parsing of node. The input supply will be provided by the property "vin-supply" in the regulator node. Signed-off-by: Laxman Dewangan Signed-off-by: Mark Brown

regulator: extend the fixed dummy voltage regulator to accept voltage

2012-06-19T22:22:30+00:00

Trivially extend the regulator_register_always_on() helper function to be even more useful by adding a voltage parameter to it. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mark Brown

regulator: support multiple dummy fixed regulators

2012-06-19T22:22:30+00:00

Currently regulator_register_fixed() uses a constant name to register a fixed dummy regulator. This is sufficient in principle, since there is no reason to register multiple such regulators. The user can simply supply all consumers in one array and use it to initialise such a regulator. However, in some cases it can be convenient to register multiple such regulators. This is also a prerequisite for the upcoming patch, that will add a voltage parameter to this function. The original function is provided as a wrapper macro. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mark Brown

regulator: fixed: Support for open drain gpio pin

2012-04-02T22:17:53+00:00

Adding flag on fixed regulator board configuration structure to specify whether gpio is open drain type or not. Passing this information to gpio library when requesting gpio so that gpio driver can set the pin state accordingly, for open drain type: - Pin can be set HIGH as setting as input, PULL UP on pin make this as HIGH. - Pin can be set LOW as setting it as output and drive to LOW. The non-open drain pin can be set HIGH/LOW by setting it to output and driving it to HIGH/LOW. Signed-off-by: Laxman Dewangan Signed-off-by: Mark Brown

regulator: provide a helper for registering a fixed regulator

2012-03-03T16:32:47+00:00

Some devices require a regulator to work, but boards may not have a software controllable regulator for this device. Provide a helper function to make it simpler for these boards to register a fixed regulator as a dummy regulator. Signed-off-by: Sascha Hauer Signed-off-by: Mark Brown

regulator: Add 'start-up time' to fixed voltage regulators

2010-03-03T14:49:23+00:00

Add a field to specify a delay for the start-up time of a fixed voltage regulator. Signed-off-by: Adrian Hunter Acked-by: Mark Brown Signed-off-by: Liam Girdwood

regulator: Add GPIO enable control to fixed voltage regulator driver

2009-09-22T12:32:41+00:00

Now fixed regulators that have their enable pin connected to a GPIO line can use the fixed regulator driver for regulator enable/disable control. The GPIO number and polarity information is passed through platform data. GPIO enable control is achieved using gpiolib. Signed-off-by: Roger Quadros Reviewed-by: Philipp Zabel Reviewed-by: Felipe Balbi Acked-by: Mark Brown Signed-off-by: Liam Girdwood

regulator: Allow init_data to be passed to fixed voltage regulators

2009-03-31T08:56:21+00:00

Signed-off-by: Mark Brown Signed-off-by: Liam Girdwood