kernel/linux.git/include/linux/regulator/fixed.h, branch v3.5.3Linux kernel stable tree (mirror)https://git.radix-linux.su/kernel/linux.git/atom?h=v3.5.32012-04-02T22:17:53+00:00regulator: fixed: Support for open drain gpio pin2012-04-02T22:17:53+00:00Laxman Dewanganldewangan@nvidia.com2012-03-07T10:28:33+00:00urn:sha1:a4d9f179cc788b7f4b735d32c2e4a3b2562e8240
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 <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
regulator: provide a helper for registering a fixed regulator2012-03-03T16:32:47+00:00Sascha Hauers.hauer@pengutronix.de2012-03-03T11:40:02+00:00urn:sha1:613330a0f73b2698b2210ea89092eb56635fc5d8
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 <s.hauer@pengutronix.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
regulator: Add 'start-up time' to fixed voltage regulators2010-03-03T14:49:23+00:00Adrian Hunteradrian.hunter@nokia.com2010-01-12T10:25:13+00:00urn:sha1:eda79a3041a2cada0d4ee9491c99c3874b322356
Add a field to specify a delay for the start-up time of
a fixed voltage regulator.
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
regulator: Add GPIO enable control to fixed voltage regulator driver2009-09-22T12:32:41+00:00Roger Quadrosext-roger.quadros@nokia.com2009-08-06T16:37:29+00:00urn:sha1:86d9884b6a3646bc24e57430f1f694c5171c1bf6
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 <ext-roger.quadros@nokia.com>
Reviewed-by: Philipp Zabel <philipp.zabel@gmail.com>
Reviewed-by: Felipe Balbi <felipe.balbi@nokia.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
regulator: Allow init_data to be passed to fixed voltage regulators2009-03-31T08:56:21+00:00Mark Brownbroonie@opensource.wolfsonmicro.com2009-01-19T13:37:04+00:00urn:sha1:bcf3402c50a48d51462f37f72129d9c4369702b4
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
regulator: fixed regulator interface2008-07-30T09:10:21+00:00Mark Brownbroonie@opensource.wolfsonmicro.com2008-04-30T14:50:21+00:00urn:sha1:48d335ba3164ce99cb8847513d0e3b6ee604eb20
This patch adds support for fixed regulators. This class of regulator is
not software controllable but can coexist on machines with software
controlable regulators.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>