Commit Graph

1628 Commits

Author SHA1 Message Date
Graeme Gregory 7be859f74c regulator: palmas correct dt parsing
Fix the DT parsing to agree with the bindings document. Some small changes
to the value names and also fix the handling of boolean values. They were
previously using prop = 1/0, now just use of_property_read_bool calls.

Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-08 17:34:04 +08:00
Axel Lin ea88b132ac regulator: max8649: Use enable_is_inverted flag with regulator_enable_regmap and friends APIs
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-05 17:56:40 +08:00
Axel Lin 318c658b7c regulator: 88pm8607: Use enable_is_inverted flag with regulator_enable_regmap and friends APIs
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-05 17:56:40 +08:00
Axel Lin 51dcdafcb7 regulator: core: Add enable_is_inverted flag to indicate set enable_mask bits to disable
Add enable_is_inverted flag to indicate set enable_mask bits to disable
when using regulator_enable_regmap and friends APIs.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-05 17:56:39 +08:00
Mark Brown 8870d4029a Merge remote-tracking branch 'regulator/fix/twl' into tmp 2013-03-05 10:12:43 +08:00
Mark Brown b2d6094924 Merge remote-tracking branch 'regulator/fix/palmas' into tmp 2013-03-05 10:12:41 +08:00
Mark Brown 6d62768468 Merge remote-tracking branch 'regulator/fix/doc' into tmp 2013-03-05 10:12:39 +08:00
Mark Brown 521e2e03b8 Merge remote-tracking branch 'regulator/fix/db8500' into tmp 2013-03-05 10:12:37 +08:00
Axel Lin 6673d66e5a regulator: tps6586x: Use dev_err rather than dev_warn for error message
tps6586x_regulator_set_slew_rate() returns -EINVAL when having slew rate
settings for other than SM0/1, thus use dev_err rather than dev_warn.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-04 10:58:46 +08:00
Guennadi Liakhovetski 0a4cccaa31 regulator: tps6586x: (cosmetic) simplify a conditional
of_node_put() is called on either branch of a conditional, simplify the
code by only calling it once.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-04 10:58:45 +08:00
Julia Lawall 720a9717bc regulator: s5m8767: adjust duplicate test
Delete successive tests to the same location.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@s exists@
local idexpression y;
expression x,e;
@@

*if ( \(x == NULL\|IS_ERR(x)\|y != 0\) )
 { ... when forall
   return ...; }
... when != \(y = e\|y += e\|y -= e\|y |= e\|y &= e\|y++\|y--\|&y\)
*if ( \(x == NULL\|IS_ERR(x)\|y != 0\) )
 { ... when forall
   return ...; }
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-04 10:56:37 +08:00
J Keerthy 3c870e3f9d regulator: palmas: Change the DT node property names to follow the convention
DT node properties should not have "_". Replacing them by "-".

Signed-off-by: J Keerthy <j-keerthy@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-04 10:54:42 +08:00
Thiago Farina 9df19a5597 regulators: max8998.c: use dev_err() instead of printk()
Fixes the following checkpatch warning:

WARNING: Prefer netdev_err(netdev, ... then dev_err(dev, ... then pr_err(...  to printk(KERN_ERR ...

Signed-off-by: Thiago Farina <tfarina@chromium.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-04 10:53:01 +08:00
Axel Lin ad4928f1dc regulator: max8925: Remove unused parameter from max8925_regulator_dt_init
The info parameter is not used at all, remove it.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-04 10:49:21 +08:00
Kim, Milo 407945fd78 regulator: lp8788-ldo: use ena_pin of regulator-core for external control
Regulator core driver provides enable GPIO control for enabling/disabling a
 regulator. Now, enable GPIO is shared among regulators.
 Use this internal working, so unnecessary code are removed.
 GPIO enable pin configurations are added in digital LDO and analog LDO drivers.

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 10:37:57 +08:00
Kim, Milo 7b74d14924 regulator: core: use regulator_ena_pin member
The regulator_dev has regulator_enable_gpio structure.
 'ena_gpio' and 'ena_gpio_invert' were moved to in regulator_enable_gpio.

  regulator_dev   --->   regulator_enable_gpio
  .ena_gpio              .gpio
  .ena_gpio_invert       .ena_gpio_invert

  Pointer, 'ena_pin' is used for checking valid enable GPIO pin.

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 10:37:57 +08:00
Kim, Milo 967cfb18c0 regulator: core: manage enable GPIO list
To support shared enable GPIO pin, replace GPIO code with new static functions

 Reference count: 'enable_count'
   Balance the reference count of each GPIO and actual pin control.
   The count is incremented with enabling GPIO.
   On the other hand, it is decremented on disabling GPIO.
   Actual GPIO pin is enabled at the initial use.(enable_count = 0)
   The pin is disabled if it is not used(shared) any more. (enable_count <=1)
   Regardless of the enable count, update GPIO state of the regulator.

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 10:37:57 +08:00
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
Andrzej Hajda fbe31057fa regulator: fixed regulator_bulk_enable unwinding code
Unwinding code disables all successfully enabled regulators.
Error is logged for every failed regulator.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-01 20:03:46 +08:00
Axel Lin d1924519fe regulator: twl: Remove TWL6030_FIXED_RESOURCE
TWL6030_FIXED_RESOURCE is not used now, remove it.

TWL6030_FIXED_RESOURCE is not used since commit e76ab829cc
"regulator: twl: Remove references to the twl4030 regulator"

twl6030_fixed_resource is removed by commit 029dd3cef
"regulator: twl: Remove another unused variable warning".

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-01 16:13:20 +08:00
Axel Lin 4813dd0efc regulator: twl: Remove VDD1_VSEL_table and VDD2_VSEL_table
Since commit ba305e31 "regulator: twl: fix twl4030 support for smps regulators",
VDD1_VSEL_table and VDD2_VSEL_table are not used any more. Remove them.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-01 16:05:13 +08:00
Axel Lin 6949fbe5b2 regulator: twl: Convert twl4030ldo_ops to get_voltage_sel
This fixes an inconsistent behavior between list_voltage() and get_voltage()
because current implementation of get_voltage() does not check the case
IS_UNSUP() is true.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-01 16:03:49 +08:00
Axel Lin b3816d5043 regulator: twl: Convert twl[6030|4030]fixed_ops to regulator_list_voltage_linear
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-01 16:00:00 +08:00
Graeme Gregory a7dddf2757 regulator: palmas: fix number of SMPS voltages
Number of voltages for SMPS regulators was off by one.

Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Ian Lartey <ian@slimlogic.co.uk>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-01 15:42:04 +08:00
Nishanth Menon 9345dfb849 regulator: core: fix documentation error in regulator_allow_bypass
commit f59c8f9f (regulator: core: Support bypass mode)
has a short documentation error around the regulator_allow_bypass
parameter 'enable' which is documented as 'allow'.

This generates kernel-doc warning as follows:
./scripts/kernel-doc drivers/regulator/core.c >/dev/null
Warning(drivers/regulator/core.c:2841): No description found for parameter 'enable'
Warning(drivers/regulator/core.c:2841): Excess function parameter 'allow' description in 'regulator_allow_bypass'

Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-01 06:07:23 +00:00
Dmitry Torokhov 4ceb73ae5a regulator: db8500-prcmu - remove incorrect __exit markup
Even if bus is not hot-pluggable, the devices can be unbound from the
driver via sysfs, so we should not be using __exit annotations on
remove() methods. The only exception is drivers registered with
platform_driver_probe() which specifically disables sysfs bind/unbind
attributes.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-01 06:04:44 +00:00
Mark Brown 2730fd82cb Merge remote-tracking branch 'regulator/topic/tps65090' into regulator-next 2013-02-19 12:43:12 +00:00
Mark Brown da3522f85b Merge remote-tracking branch 'regulator/topic/tps6507x' into regulator-next 2013-02-19 12:43:10 +00:00
Mark Brown b67a2ecb54 Merge remote-tracking branch 'regulator/topic/tps51632' into regulator-next 2013-02-19 12:43:09 +00:00
Mark Brown 178a097d5e Merge remote-tracking branch 'regulator/topic/s5m8767' into regulator-next 2013-02-19 12:43:08 +00:00
Mark Brown 728088871c Merge remote-tracking branch 'regulator/topic/palmas' into regulator-next 2013-02-19 12:43:07 +00:00
Mark Brown cf1466fbf8 Merge remote-tracking branch 'regulator/topic/of' into regulator-next 2013-02-19 12:42:52 +00:00
Mark Brown c99f21c276 Merge remote-tracking branch 'regulator/topic/mc13892' into regulator-next 2013-02-19 12:42:50 +00:00
Mark Brown e11c4515e3 Merge remote-tracking branch 'regulator/topic/max8998' into regulator-next 2013-02-19 12:42:49 +00:00
Mark Brown 6a244cadb0 Merge remote-tracking branch 'regulator/topic/max8997' into regulator-next 2013-02-19 12:42:49 +00:00
Mark Brown 1fe230175e Merge remote-tracking branch 'regulator/topic/max77686' into regulator-next 2013-02-19 12:42:48 +00:00
Mark Brown c7b094828b Merge remote-tracking branch 'regulator/topic/lp8788' into regulator-next 2013-02-19 12:42:47 +00:00
Mark Brown 800d290182 Merge remote-tracking branch 'regulator/topic/lp8755' into regulator-next 2013-02-19 12:42:46 +00:00
Mark Brown efc828022e Merge remote-tracking branch 'regulator/topic/lp872x' into regulator-next 2013-02-19 12:42:39 +00:00
Mark Brown 5ce63c7e7d Merge remote-tracking branch 'regulator/topic/lp3972' into regulator-next 2013-02-19 12:42:35 +00:00
Mark Brown 5ec2a5e8e5 Merge remote-tracking branch 'regulator/topic/lp3971' into regulator-next 2013-02-19 12:42:35 +00:00
Mark Brown a4dba88e63 Merge remote-tracking branch 'regulator/topic/gpio' into regulator-next 2013-02-19 12:42:34 +00:00
Mark Brown eb230d4a61 Merge remote-tracking branch 'regulator/topic/da9055' into regulator-next 2013-02-19 12:42:33 +00:00
Mark Brown 52582adcb9 Merge remote-tracking branch 'regulator/topic/core' into regulator-next 2013-02-19 12:42:32 +00:00
Mark Brown 20ab4a7a79 Merge remote-tracking branch 'regulator/topic/as3711' into regulator-next 2013-02-19 12:42:31 +00:00
Mark Brown 45aae62ddd Merge remote-tracking branch 'regulator/topic/arizona' into regulator-next 2013-02-19 12:42:30 +00:00
Mark Brown fc221525bd Merge remote-tracking branch 'regulator/topic/apply' into regulator-next 2013-02-19 12:42:29 +00:00
Mark Brown 0dbf165ec4 Merge remote-tracking branch 'regulator/topic/anatop' into regulator-next 2013-02-19 12:42:28 +00:00
Russ Dill 9c7b4e8a8a regulator: Fix memory garbage dev_err printout.
commit dd8004af: 'regulator: core: Log when a device causes a voltage
constraint fail', tried to print out some information about the
check consumer min/max uV fixup, however, it uses a garbage pointer
left over from list_for_each_entry leading to boot messages in the
form:

'[    2.079890] <RANDOM ASCII>: Restricting voltage, 3735899821-4294967295uV'

Because it references regulator->dev, it could potentially read memory from
anywhere causing a panic.

This patch instead uses rdev and the updated min/max uV values.

Signed-off-by: Russ Dill <Russ.Dill@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-14 16:18:39 +00:00
Mark Brown f2e5d078f7 Linux 3.8-rc7
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.13 (GNU/Linux)
 
 iQEcBAABAgAGBQJRFWw4AAoJEHm+PkMAQRiGnTAH/jBHA2umNc3lc7VkUpusve4q
 GGIlNzYh6iuvIGwKQVj9YPsl37qtQnkDUmY8f8WxZjfxiIDw3TkRKDgNLJaM3Jy5
 E426/FGlRx/Iia5+4tuBeoVYMoIPnndgW5lEAMRK1SvhTByhIYAXsaM0UwPBetb+
 Z5NMdH1f1HVF7RCCmHAkzEk9z78UpdeCzI0t0XuasP2hp2ARAcE1okdO7fNaLiyo
 EmenGhRvy9bAsbRwV0rCdl0rQiZXEYM353DWS7n6q4fyVm8MXFwloUxnWCJTzOIL
 ZLJaz18adFj7Ip/X6ksnMQiQU2Q3B7aThs5ycv0QGxxL2rDFveYRRQ5ICrXOy3M=
 =jjBc
 -----END PGP SIGNATURE-----

Merge tag 'v3.8-rc7' into regulator-core

Linux 3.8-rc7
2013-02-14 16:13:19 +00:00
Thiago Farina 40e72149a2 regulator: max77686: Reuse rdev_get_id() function.
Signed-off-by: Thiago Farina <tfarina@chromium.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-14 12:11:04 +00:00
Axel Lin d94d9aca5b regulator: tps51632: Use regulator_[get|set]_voltage_sel_regmap
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-13 12:58:40 +00:00
Axel Lin 09ca50d2ad regulator: as3711: Fix checking if no platform initialization data
To skip registering regulator if no platform initialization data,
we should check reg_data rather than ri->desc.name.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-13 12:56:51 +00:00
Axel Lin e81d7bc89c regulator: s5m8767: Prevent possible NULL pointer dereference
s5m8767_pmic_dt_parse_pdata dereferenes pdata, thus check pdata earlier to
avoid NULL pointer dereference.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-13 12:52:19 +00:00
Axel Lin cbb0ed495c regulator: s5m8767: Fix dev argument for devm_kzalloc and of_get_regulator_init_data
Use &pdev->dev rather than iodev->dev for devm_kzalloc() and
of_get_regulator_init_data(), this fixes memory leak.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-13 12:52:18 +00:00
Axel Lin c66a566afb regulator: core: Optimize _regulator_do_set_voltage if voltage does not change
Optimize _regulator_do_set_voltage() for the case selector is equal to
old_selector. Since the voltage does not change, we don't need to call
set_voltage_sel() and set_voltage_time_sel() in this case.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-08 11:26:03 +00:00
Axel Lin c6163a7023 regulator: max8998: Let regulator core handle the case selector == old_selector
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-08 11:23:43 +00:00
Axel Lin 1f91b6f6c7 regulator: s5m8767: Use of_get_child_count()
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-08 11:16:40 +00:00
Shawn Guo ff1ce0571e regulator: anatop: improve precision of delay time
For cpufreq example, it takes 13 steps (25 mV for one step) to increase
vddcore from 0.95 V to 1.275 V, and the time of 64 clock cycles at
24 MHz for one step is ~2.67 uS, so the total delay time would be
~34.71 uS.  But the current calculation in the driver gives 39 uS.
Change the formula to have the addition of 1 be the last step, so that
we can get a more precise delay time.  For example above, the new
formula will give 35 uS.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-08 11:15:00 +00:00
Mark Brown 53e5da79fa Merge remote-tracking branch 'regulator/fix/tps65910' into tmp 2013-02-06 11:28:53 +00:00
Mark Brown e04702c8b2 Merge remote-tracking branch 'regulator/fix/tps65217' into tmp 2013-02-06 11:28:52 +00:00
Mark Brown 918d623b04 Merge remote-tracking branch 'regulator/fix/s2mps11' into tmp 2013-02-06 11:28:51 +00:00
Mark Brown 44784cb32b Merge remote-tracking branch 'regulator/fix/of' into tmp 2013-02-06 11:28:51 +00:00
Mark Brown 98380536ee Merge remote-tracking branch 'regulator/fix/max8998' into tmp 2013-02-06 11:28:50 +00:00
Mark Brown 3886f91b96 Merge remote-tracking branch 'regulator/fix/max8997' into tmp 2013-02-06 11:28:49 +00:00
Mark Brown c48c43aa2d Merge remote-tracking branch 'regulator/fix/max8907' into tmp 2013-02-06 11:28:48 +00:00
Mark Brown ac58291c75 Merge remote-tracking branch 'regulator/fix/max77686' into tmp 2013-02-06 11:28:48 +00:00
Michał Mirosław 896b65f345 regulator: show state for GPIO-controlled regulators
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-04 18:38:06 +00:00
Amit Daniel Kachhap 26aec009f6 regulator: add device tree support for s5m8767
This device tree support is added for PMIC block of S5m8767 multi
function driver. The usage detail is added in the device tree
documentation section. This change is tested on exynos5250 based
arndale platform by regulator voltage set/get API's.

Reviewed-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Tested-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-04 10:31:31 +00:00
Axel Lin f33d0081ff regulator: palmas: Remove a redundant setting for warm_reset
Current code read "ti,warm_reset" of property twice, and set
pdata->reg_init[idx]->warm_reset twice. Read and set it once is enough.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-04 10:24:35 +00:00
Alim Akhtar c76edd52bf regulator: s2mps11: fix incorrect register for buck10
For BUCK10 the control registers are wrongly set as buck9 control register
This patch corrects the control registers for buck10

Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
2013-01-31 14:45:11 +08:00
Axel Lin 86f6673325 regulator: mc13xxx: Use of_get_child_count()
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-31 14:43:32 +08:00
Axel Lin ee70b25849 regulator: max8997: Use of_get_child_count()
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-31 14:43:29 +08:00
Axel Lin 09a228e70b regulator: tps65090: Fix using wrong dev argument for calling of_regulator_match
The dev parameter is the device requesting the data.
In this case it should be &pdev->dev rather than pdev->dev.parent.

The dev parameter is used to call devm_kzalloc in of_get_regulator_init_data(),
which means this fixes a memory leak because the memory is allocated every time
probe() is called, thus it should be freed when this driver is unloaded.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-31 14:42:05 +08:00
Anson Huang 9ee417c074 regulators: anatop: add set_voltage_time_sel interface
some of anatop's regulators(cpu, vddpu and vddsoc) have
register settings about LDO's step time, which will impact
the LDO ramp up speed, need to use set_voltage_time_sel
interface to add necessary delay everytime LDOs' voltage
is increased.

offset 0x170:
bit [24-25]: cpu
bit [26-27]: vddpu
bit [28-29]: vddsoc

field definition:
0'b00: 64 cycles of 24M clock;
0'b01: 128 cycles of 24M clock;
0'b02: 256 cycles of 24M clock;
0'b03: 512 cycles of 24M clock;

Signed-off-by: Anson Huang <b20788@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-31 14:40:49 +08:00
Axel Lin c92f5dd2c4 regulator: Add missing of_node_put()
of_find_node_by_name() returns a node pointer with refcount incremented, use
of_node_put() on it when done.

of_find_node_by_name() will call of_node_put() against from parameter,
thus we also need to call of_node_get(from) before calling
of_find_node_by_name().

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-30 18:50:27 +08:00
Mark Brown 9c9588a732 Merge remote-tracking branches 'regulator/fix/max8907', 'regulator/fix/max8997', 'regulator/fix/tps65910' and 'regulator/topic/mc13892' into regulator-of 2013-01-30 18:50:14 +08:00
Axel Lin 0ce7d00d0d regulator: tps6507x: Fix using wrong dev argument for calling of_regulator_match
The dev parameter is the device requesting the data.
In this case it should be &pdev->dev rather than pdev->dev.parent.

The dev parameter is used to call devm_kzalloc in of_get_regulator_init_data(),
which means this fixes a memory leak because the memory is allocated every time
probe() is called, thus it should be freed when this driver is unloaded.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-30 18:44:41 +08:00
Stephen Warren a2f95c3637 regulator: clear state each invocation of of_regulator_match
of_regulator_match() saves some dynamcially allocated state into the
match table that's passed to it. By implementation and not contract, for
each match table entry, if non-NULL state is already present,
of_regulator_match() will not overwrite it. of_regulator_match() is
typically called each time a regulator is probe()d. This means it is
called with the same match table over and over again if a regulator
triggers deferred probe. This results in stale, kfree()d data being left
in the match table from probe to probe, which causes a variety of crashes
or use of invalid data.

Explicitly free all output state from of_regulator_match() before
generating new results in order to avoid this.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
2013-01-30 10:11:06 +08:00
Laxman Dewangan 6c7a7a0e36 regulator: tps65090: add DT support
Add DT support for TI PMIC tps65090 regulator driver. The DT of this
device have node regulator and all regulator's node of this device is
added under this node.

The device tree binding document has the required information for
adding this device on DTS file.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-29 19:09:34 +08:00
Mark Brown 1433d0905f Merge remote-tracking branch 'regulator/fix/tps80031' into tmp 2013-01-29 11:14:35 +08:00
Axel Lin a451405fcd regulator: gpio-regulator: Staticize of_get_gpio_regulator_config()
of_get_gpio_regulator_config() is only used in gpio-regulator.c, make it static.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-29 00:44:17 +08:00
Axel Lin 655efa0ff2 regulator: gpio-regulator: Use of_gpio_count()
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-29 00:44:17 +08:00
Matt Sealey 2c8a5dcaa4 regulator: mc13892: sanity check num_regulators parsed vs. registered
Imagine a situation where a device tree has a few regulators in an
appropriate node:

regulators {
	sw1 {
		..
	};

	vvideo {
		..
	};

	:

	vfake {
		..
	};

	vtypo {
		..
	};
};

In the above example, the node name "vfake" is an attempt to match a
regulator name inside the driver which just so happens to not exist. The
node name "vtypo" represents an accidental typographical error in a
regulator name which may have been introduced to a device tree.

In these cases, the number of regulators the mc13892 driver thinks it has
does not match the number of regulators it parsed and registered. Since
it will go over this array based on this number, it will actually
re-register regulator "0" (which happens to be SW1) over and over
again until it reaches the number, resulting in messages on the kernel
log such as these:

SW1: at 1100 mV
VVIDEO: at 2775mV
:
SW1: at 1100 mV
SW1: at 1100 mV

.. up to that number of "mismatched" regulators. Nobody using DT can/will
consume these regulators, so it should not be possible for it to cause any
real regulator problems or driver breakages, but it is an easy thing to
miss in a kernel log and is an immediate indication of a problem with the
device tree authoring.

This patch effectively sanity checks the number of counted children of
the regulators node vs. the number that actually matched driver names,
and sets the appropriate num_regulators value. It also gives a little
warning for device tree authors that they MAY have screwed something up,
such that this patch does not hide the device tree authoring problem.

Signed-off-by: Matt Sealey <matt@genesi-usa.com>
Tested-by: Steev Klimaszewski <steev@genesi-usa.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-27 11:22:30 +08:00
Matt Sealey ccf3ed782a regulator: mc13892-regulator: correct/refine handling of the SWxHI bit
MC13892 PMIC supports a "HI" bit for 3 of it's 4 buck switcher outputs,
which enables a higher set of voltage ranges.

Despite a comment in the code ('sw regulators need special care due to the
"hi" bit'), it actually does not take special care since it does not modify
it's use of the selector table index when this bit is set, giving us very
odd behavior when setting a high voltage on supported switchers or listing
current voltages. Net effect is in best case the kernel and sysfs report
lower voltages than are actually set in hardware (1300mV instead of 1800mV
for example) and in the worst case setting a voltage (e.g. 1800mV) will cause
an undervoltage condition (e.g. 1300mV).

Correct the behavior, taking into account SW1 doesn't support the HI bit,
and as such we need to ignore it.

While we are modifying these functions, fix and optimize the following;

* set_voltage_sel callback was using .reg instead of .vsel_reg - since
  they were set to the same value it actually didn't break anything but
  it would be semantically incorrect to use .reg in this case. We now use
  .vsel_reg and be consistent.
* vsel_shift is always 0 for every SWx regulator, and constantly shifting
  and masking off the bottom few bits is time consuming and makes the
  code very hard to read - optimize this out.
* get_voltage_sel uses the variable "val" and set_voltage_sel uses the
  variable "selector" (and reg_value). Introduce the variable "selector"
  to get_voltage_sel such that it makes more sense and allow some leaner
  code in light of the modifications in this patch. Add better exposure
  to the debug print so the register value AND the selector are printed as
  this will adequately show the HI bit in the register.
* correct a comment in probe which is doing a version check. Magic
  values are awful but for once instance, a comment does just as
  good a job as something symbolic.

Signed-off-by: Matt Sealey <matt@genesi-usa.com>
Tested-by: Steev Klimaszewski <steev@genesi-usa.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-27 11:22:21 +08:00
Vishwanathrao Badarkhe, Manish 6116ad94e1 regulator: tps6507x: add device tree support.
Add device tree based initialization support for
TI's tps6507x regulators.
Add device tree binding document for TI's tps6507x
using datasheet:
http://www.ti.com/lit/ds/symlink/tps65070.pdf

Signed-off-by: Vishwanathrao Badarkhe, Manish <manishv.b@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-27 11:19:01 +08:00
Axel Lin 1200c60bc5 regulator: lp8755: Use LP8755_BUCK_MAX instead of magic number
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-27 11:00:25 +08:00
Axel Lin b4895e2ca5 regulator: max8997: Fix using wrong dev argument at various places
Use &pdev->dev rather than iodev->dev for dev_err(), dev_warn() and dev_info().
Use &pdev->dev rather than iodev->dev for devm_kzalloc() and
of_get_regulator_init_data(), this fixes memory leak.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-27 10:56:13 +08:00
Axel Lin b19f575898 regulator: max77686: Fix using wrong dev argument at various places
Use &pdev->dev rather than iodev->dev for dev_err().
Use &pdev->dev rather than iodev->dev for devm_kzalloc() and
of_regulator_match(), this fixes memory leak.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-27 10:54:18 +08:00
Axel Lin f40cbcb933 regulator: max8907: Fix using wrong dev argument for calling of_regulator_match
The dev parameter is the device requesting the data.
In this case it should be &pdev->dev rather than pdev->dev.parent.

The dev parameter is used to call devm_kzalloc in of_get_regulator_init_data(),
which means this fixes a memory leak because the memory is allocated every time
probe() is called, thus it should be freed when this driver is unloaded.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-27 10:53:03 +08:00
Marek Szyprowski 36a6f8c035 regulator: max8998: fix incorrect min_uV value for ldo10
Correct value for minimal voltage for ldo10 output is 950000 uV. This
patch fixes the typo introduced by patch adf6178ad5
("regulator: max8998: Use uV in voltage_map_desc"), what solves broken
probe of max8998 in v3.8-rc4.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: stable@vger.kernel.org
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-26 16:57:39 +08:00
Axel Lin d4cbca9ef8 regulator: tps80031: Use IS_ERR to check return value of regulator_register()
regulator_register() does not return NULL, it returns ERR_PTR on error.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-26 15:40:36 +08:00
Steven Rostedt 7f46d0f81f regulators: db8500: Fix compile failure for drivers/regulator/dbx500-prcmu.c
Building for the snowball board, I ran into this compile failure:

  CC      drivers/regulator/dbx500-prcmu.o
arm-test.git/drivers/regulator/dbx500-prcmu.c:119:11: error: 'THIS_MODULE' undeclared here (not in a function)
make[3]: *** [drivers/regulator/dbx500-prcmu.o] Error 1
make[2]: *** [drivers/regulator] Error 2

Commit 38e968380 "regulators/db8500: split off shared dbx500 code"
separated out the dbx500 code but did not copy over the required include
to linux/module.h.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-26 15:30:06 +08:00
Axel Lin 08337fdac2 regulator: tps65910: Fix using wrong dev argument for calling of_regulator_match
The dev parameter is the device requesting the data.
In this case it should be &pdev->dev rather than pdev->dev.parent.

The dev parameter is used to call devm_kzalloc in of_get_regulator_init_data(),
which means this fixes a memory leak because the memory is allocated every time
probe() is called, thus it should be freed when this driver is unloaded.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Laxman Dewangan<ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-24 18:59:53 +08:00
Axel Lin 5bce833c44 regulator: tps65217: Fix using wrong dev argument for calling of_regulator_match
The dev parameter is the device requestiong the data.
In this case it should be &pdev->dev rather than pdev->dev.parent.

The dev parameter is used to call devm_kzalloc in of_get_regulator_init_data(),
which means this fixes a memory leak because the memory is allocated every time
probe() is called, thus it should be freed when this driver is unloaded.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-24 18:58:33 +08:00
Axel Lin 31a932e107 regulator: s5m8767: Convert to regulator_[get|set]_voltage_sel_regmap
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-18 15:26:19 +09:00
Axel Lin 510799eaba regulator: lp8755: Remove enum bucks
We already have enum lp8755_bucks in lp8755.h, so it looks pointless adding
enum bucks in lp8755.c.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Tested-by: Daniel Jeong <gshark.jeong@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-17 16:13:59 +09:00
Axel Lin 240a529108 regulator: lp8755: Don't show unrelated messags in lp8755_probe error paths
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-17 16:13:19 +09:00
Axel Lin 854f73ecb5 regulator: s5m8767: Remove max_vol parameter from s5m8767_convert_voltage_to_sel
It looks pointless to pass max_vol to s5m8767_convert_voltage_to_sel().
Compare selected voltage to desc->max is enough to ensure selected voltage
is in supported range.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-17 16:12:22 +09:00
Axel Lin e69995d3bf regulator: lp8788-buck: Remove buck[1|2]_vout_addr array
The vout address for buck[1|2] can be easily calculated,
thus remote these arrays.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Milo Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-17 16:08:08 +09:00
Mark Brown e3d5b2f570 Merge remote-tracking branch 'regulator/fix/s5m8767' into tmp 2013-01-15 09:38:59 +09:00
Mark Brown 3ab91da2f1 Merge remote-tracking branch 'regulator/fix/max8998' into tmp 2013-01-15 09:38:56 +09:00
Mark Brown c63184673e Merge remote-tracking branch 'regulator/fix/max8997' into tmp 2013-01-15 09:38:51 +09:00
Mark Brown a1ed63f4db Merge remote-tracking branch 'regulator/fix/core' into tmp 2013-01-15 09:38:27 +09:00
Mark Brown 9fc50a2ead regulator: arizona-micsupp: Enable bypass in default constraints
This will be used as part of low power accessory detect.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-13 21:31:02 +09:00
Mark Brown e6ed90581b regulator: arizona-micsupp: Enable SYSCLK for charge pump
If we are in non-bypass mode then the SYSCLK is required for full charge
pump operation, otherwise we will fall back to bypass mode. Use the DAPM
context exposed by the ASoC driver to manage this.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-13 21:31:02 +09:00
Axel Lin eb758de6a0 regulator: lp8788-buck: Silence build warning
This driver use id as array index, thus add bounder checking for id.

This patch fixes below build warning:
drivers/regulator/lp8788-buck.c: In function 'lp8788_buck_probe':
drivers/regulator/lp8788-buck.c:490:8: warning: array subscript is above array bounds [-Warray-bounds]
drivers/regulator/lp8788-buck.c:489:63: warning: array subscript is above array bounds [-Warray-bounds]

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-10 12:56:57 +00:00
Axel Lin 81d0a6ae7b regulator: max8998: Ensure enough delay time for max8998_set_voltage_buck_time_sel
Use DIV_ROUND_UP to prevent truncation by integer division issue.
This ensures we return enough delay time.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
2013-01-10 12:55:49 +00:00
Axel Lin adf6178ad5 regulator: max8998: Use uV in voltage_map_desc
Integer division may truncate.
This happens when pdata->buckx_voltagex setting is not align with 1000 uV.
Thus use uV in voltage_map_desc, this ensures the selected voltage won't less
than pdata buckx_voltagex settings.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
2013-01-08 11:16:11 +00:00
Axel Lin bc3b7756b5 regulator: max8997: Use uV in voltage_map_desc
Current code does integer division (min_vol = min_uV / 1000) before pass
min_vol to max8997_get_voltage_proper_val().
So it is possible min_vol is truncated to a smaller value.

For example, if the request min_uV is 800900 for ldo.
min_vol = 800900 / 1000 = 800 (mV)
Then max8997_get_voltage_proper_val returns 800 mV for this case which is lower
than the requested voltage.

Use uV rather than mV in voltage_map_desc to prevent truncation by integer
division.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
2013-01-08 11:14:35 +00:00
Axel Lin c8c14a393b regulator: lp3972: Convert to get_voltage_sel
regulator_list_voltage_table() returns -EINVAL if selector >= n_voltages.
Thus we don't need to check if reg is greater than LP3972_BUCK_VOL_MAX_IDX in
lp3972_[ldo|dcdc]_get_voltage_sel.

LP3972_BUCK_VOL_MIN_IDX and LP3972_BUCK_VOL_MAX_IDX are not used, remove them.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-08 11:07:05 +00:00
Axel Lin cad877ef0a regulator: lp8755: Fix mask for pchip->mphase
According to the datasheet, it has 9 multi-phase mode from 0 to 8 and it takes
4 bits in the register.
The mask for pchip->mphase should be 0x0F.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-08 11:05:26 +00:00
Axel Lin a1a41ab4e9 regulator: lp8755: Fix lp8755_regulator_init unwind code
It's safe to pass NULL argument to regulator_unregister(), so we can remove
the NULL checking before calling regulator_unregister().
However pass a ERR_PTR to regulator_unregister() is wrong, so we need to
explicitly set "pchip->rdev[buck_num] = NULL" before goto err_buck.

This patch also includes below cleanups:
Show correct regulator id in dev_err.
Remove __devexit_p.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-08 11:05:26 +00:00
Axel Lin 5551a6a0eb regulator: da9055: Remove unused v_shift field from struct da9055_volt_reg
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-07 11:14:53 +00:00
Axel Lin b9bb09111a regulator: lp8788-ldo: Use ldo->en_pin to check if regulator is enabled by external pin
ldo->en_pin is set iff the regulator is enabled by external pin.

This patch sets ldo->en_pin to NULL if lp8788_gpio_request_ldo_en() fails, then
we can use it to determinate if the regulator is controlled by external pin or
register.

lp8788_get_ldo_enable_mode(), lp8788_ldo_ctrl_by_extern_pin() and
lp8788_ldo_is_enabled_by_extern_pin() functions are not used now, remove them.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Milo Kim <milo.kim@ti.com>
Tested-by: Milo Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-07 11:13:08 +00:00
Greg Kroah-Hartman 3d68dfe324 Drivers: regulator: remove __dev* attributes.
CONFIG_HOTPLUG is going away as an option.  As a result, the __dev*
markings need to be removed.

This change removes the use of __devinit, __devexit_p, __devinitdata,
__devinitconst, and __devexit from these drivers.

Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.

Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Liam Girdwood <lrg@ti.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-03 15:57:04 -08:00
Axel Lin 0384618a79 regulator: core: Fix comment for regulator_register()
regulator_register() does not return 0 on success, fix the comment.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-03 13:02:39 +00:00
Kim, Milo f02a3917b3 lp8788-ldo: fix a parent device on devm_gpio_request()
Use 'platform_device' rather than i2c client device node.
 Argument is added in lp8788_config_ldo_enable_mode().

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-03 11:28:53 +00:00
Kim, Milo 939e88f090 lp8788-ldo: fix a parent device in _probe()
The lp8788-ldo is a platform driver of lp8788-mfd.
 The platform device is allocated when mfd_add_devices() is called
 in lp8788-mfd.
 On the other hand, 'lp->dev' is the i2c client device.

 Therefore, this 'platform_device' is a proper parent device in case of
 resource managed mem alloc, registering regulators and device kernel messages.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-03 11:28:53 +00:00
Kim, Milo 1ef01e74e7 lp8788-buck: fix a for-loop coding style
Remove space before semicolon in for-loop.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-03 11:28:53 +00:00
Kim, Milo 38d8f67cb6 lp8788-buck: fix a parent device on devm_gpio_request()
Use 'platform_device' rather than i2c client device node.
 Arguments are added in lp8788_init_dvs() and lp8788_dvs_gpio_request().

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-03 11:28:52 +00:00
Kim, Milo 3b0e8f1281 lp8788-buck: fix a parent deivce in _probe()
The lp8788-buck is a platform driver of lp8788-mfd.
 The platform device is allocated when mfd_add_devices() is called
 in lp8788-mfd.
 On the other hand, 'lp->dev' is the i2c client device.

 Therefore, this 'platform_device' is a proper parent device in case of
 resource managed mem alloc, registering a regulator and device kernel message.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-03 11:28:52 +00:00
Axel Lin b79ca051bd regulator: max8997: Convert max8997_safeout_ops to set_voltage_sel and list_voltage_table
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-27 17:34:49 +00:00
Axel Lin 24bd410905 regulator: max8997: Remove set_voltage_time_sel setting for max8997_ldo_ops
max8997_set_voltage_ldobuck_time_sel() returns 0 for all LDOs.
Thus remove set_voltage_time_sel setting for max8997_ldo_ops.

max8997_set_voltage_ldobuck_time_sel() is only used for max8997_buck_ops now,
rename it to max8997_set_voltage_buck_time_sel().

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-27 17:34:49 +00:00
Laxman Dewangan c51ce403d3 regulator: tps51632: add DT support
Add DT support for the TI TPS51632. Add device binding document also.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-27 17:30:45 +00:00
Laxman Dewangan faa3b2d579 regulator: tps51632: add register property for regmap
All TPS51632 registers are not readable/writable and
non-volatiles.

Add property of the registers whether it is readable/writable
or volatile for regmap framework.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-27 17:30:45 +00:00
Axel Lin c6f0a0efb1 regulator: 88pm8607: Use apply_[reg|bit] with regmap based voltage_sel operations
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-27 17:28:25 +00:00
Axel Lin adbf7eabb6 regulator: 88pm8607: Update update_bit for BUCK2 in pm8607_set_voltage_sel
BUCK2 has the update_bit setting, but current code does not set update_bit
in pm8607_set_voltage_sel.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-27 17:28:22 +00:00
Axel Lin d645d59158 regulator: tps6586x: Use apply_[reg|bit] with regmap based voltage_sel operations
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-24 16:34:11 +00:00
Axel Lin 68f7506017 regulator: da9052: Use apply_[reg|bit] with regmap based voltage_sel operations
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-24 16:34:11 +00:00
Axel Lin c8520b4c5d regulator: core: Allow specify apply_[reg|bit] for regmap based voltage_sel operations
Some DVM regulators needs to update apply_bit after setting vsel_reg to
initiate voltage change on the output.  This patch adds apply_reg and
apply_bit to struct regulator_desc and update
regulator_set_voltage_sel_regmap() to set apply_bit of apply_reg when
apply_bit is set.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-24 16:34:11 +00:00
Daniel Jeong b59320cc5a regulator: lp8755: new driver for LP8755
This patch is for new lp8755 regulator dirver and
several unsed variables were deleted and then test was done.

LP8755 :
The LP8755 is a high performance power management unit.It contains
six step-down DC-DC converters which can can be filexibly bundled
together in multiphase converters as required by application.
www.ti.com

Signed-off-by: Daniel Jeong <gshark.jeong@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-24 16:32:34 +00:00
Axel Lin 19280e4071 regulator: core: Fix continuous_voltage_range case in regulator_can_change_voltage
Regulator drivers with continuous_voltage_range flag set allows not setting
n_voltages. Thus if continuous_voltage_range is set, check the constraint range
instead.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-24 16:30:44 +00:00
Axel Lin f38482fa70 regulator: lp3971: Convert to get_voltage_sel
regulator_list_voltage_table() returns -EINVAL if selector >= n_voltages.
Thus we don't need to check if reg is greater than BUCK_TARGET_VOL_MAX_IDX in
lp3971_dcdc_get_voltage_sel.

BUCK_TARGET_VOL_MIN_IDX and BUCK_TARGET_VOL_MAX_IDX are not used, remove them.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-24 16:26:50 +00:00
Inderpal Singh 3ef303988c regulator: s5m8767: Fix probe failure due to stack corruption
The function sec_reg_read invokes regmap_read which expects unsigned int *
as the destination address. The existing driver is passing address of local
variable "val" which is u8. This causes the stack corruption and following
dump is observed during probe.

Hence change "val" from u8 to unsigned int.

Unable to handle kernel paging request at virtual address 02410020
pgd = c0004000
[02410020] *pgd=00000000
Internal error: Oops: 80000005 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 0    Not tainted  (3.6.0-00696-g98a28b18-dirty #27)
PC is at 0x2410020
LR is at _regulator_get_voltage+0x3c/0x70
pc : [<02410020>]    lr : [<c02395d4>]    psr: 20000013
sp : cf839b68  ip : 00000000  fp : cf92d410
r10: 0000cfd0  r9 : c06d9878  r8 : 0000f0a0
r7 : cf839b70  r6 : cf92d400  r5 : 00000011  r4 : cf000000
r3 : 02410020  r2 : 00000000  r1 : 00000048  r0 : cf000000
Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
...........................
.................................

[<c02395d4>] (_regulator_get_voltage+0x3c/0x70) from [<c023ad80>] (print_constraints+0x50/0x36c)
[<c023ad80>] (print_constraints+0x50/0x36c) from [<c023e504>] (set_machine_constraints+0xe8/0x2b0)
[<c023e504>] (set_machine_constraints+0xe8/0x2b0) from [<c023e9c8>] (regulator_register+0x2fc/0x604)
[<c023e9c8>] (regulator_register+0x2fc/0x604) from [<c049d628>] (s5m8767_pmic_probe+0x688/0x718)
[<c049d628>] (s5m8767_pmic_probe+0x688/0x718) from [<c029915c>] (platform_drv_probe+0x18/0x1c)
[<c029915c>] (platform_drv_probe+0x18/0x1c) from [<c0297dd0>] (really_probe+0x68/0x1f4)
[<c0297dd0>] (really_probe+0x68/0x1f4) from [<c0298070>] (driver_probe_device+0x30/0x48)

Signed-off-by: Inderpal Singh <inderpal.singh@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-24 16:24:37 +00:00
Paolo Pisati 92d7a55879 regulator: core: if voltage scaling fails, restore original voltage values
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>
Tested-by: Robert Nelson <robertcnelson@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-15 23:53:05 +09:00
Mark Brown 4ffc45c360 Merge remote-tracking branch 'regulator/topic/sm8767' into regulator-next 2012-12-11 21:44:55 +09:00
Mark Brown f3cd19c38c Merge remote-tracking branch 'regulator/topic/change' into regulator-next 2012-12-11 21:44:53 +09:00
Axel Lin 8a23b4e03d regulator: core: Fix logic to determinate if regulator can change voltage
Having a linear_min_sel setting means the first linear_min_sel selectors are
invalid. We need to subtract linear_min_sel when use n_voltages to determinate
if regulator can change voltage.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-11 21:44:23 +09:00
Mark Brown b17fc86cc5 Merge branch 'topic/min' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-change 2012-12-11 21:44:17 +09:00
Amit Daniel Kachhap 76c854d1df regulator: s5m8767: Fix to work even if no DVS gpio present
Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-11 12:44:05 +09:00
Amit Daniel Kachhap da130ab2df regulator: s5m8767: Fix to read the first DVS register.
This patch modifies the DVS register read function to select correct DVS1
register. This change is required because the GPIO select pin is 000 in
unintialized state and hence selects the DVS1 register.

Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-11 12:44:05 +09:00
Amit Daniel Kachhap 9bb096ff37 regulator: s5m8767: Fix to work when platform registers less regulators
Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-11 12:44:04 +09:00
Mark Brown bfd9155ebb Merge remote-tracking branch 'regulator/topic/gpio' into regulator-next 2012-12-10 23:14:11 +09:00
Lee Jones 3708903ee6 regulator: gpio-regulator: gpio_set_value should use cansleep
If it's possible for gpio_set_value to sleep, we should be using
the *_cansleep call instead. This patch fixes multiple warnings
from gpiolib.

Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-10 23:12:41 +09:00
Lee Jones ad0b8b9e82 regulator: gpio-regulator: Fix logical error in for() loop
The cond-statement of this particular for() loop will always be
true as long as at least one voltage-shifting GPIO is present.
If it wasn't for the break below, we'd be stuck in a forever loop.
This patch inserts the correct cond-statement into the statement.

Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-10 23:12:41 +09:00
Mark Brown 925f14dc2d Merge remote-tracking branch 'regulator/topic/wm831x' into regulator-next 2012-12-10 12:43:33 +09:00
Mark Brown 8ee005112d Merge remote-tracking branch 'regulator/topic/tps80031' into regulator-next 2012-12-10 12:43:32 +09:00
Mark Brown f1e0d5f138 Merge remote-tracking branch 'regulator/topic/tps65910' into regulator-next 2012-12-10 12:43:30 +09:00
Mark Brown 21e55ca406 Merge remote-tracking branch 'regulator/topic/tps6586x' into regulator-next 2012-12-10 12:43:29 +09:00
Mark Brown 41f5983236 Merge remote-tracking branch 'regulator/topic/tps65090' into regulator-next 2012-12-10 12:43:27 +09:00
Mark Brown f8c85fe186 Merge remote-tracking branch 'regulator/topic/tps516312' into regulator-next 2012-12-10 12:43:24 +09:00
Mark Brown 86caa905f3 Merge remote-tracking branch 'regulator/topic/s2mps11' into regulator-next 2012-12-10 12:43:19 +09:00
Mark Brown e6120461e5 Merge remote-tracking branch 'regulator/topic/palmas' into regulator-next 2012-12-10 12:43:17 +09:00
Mark Brown adca48f7c6 Merge remote-tracking branch 'regulator/topic/min' into regulator-next 2012-12-10 12:43:00 +09:00
Mark Brown 9e21867073 Merge remote-tracking branch 'regulator/topic/max8997' into regulator-next 2012-12-10 12:43:00 +09:00
Mark Brown f675649e70 Merge remote-tracking branch 'regulator/topic/max8973' into regulator-next 2012-12-10 12:42:59 +09:00
Mark Brown 9199addf4f Merge remote-tracking branch 'regulator/topic/max77686' into regulator-next 2012-12-10 12:42:58 +09:00
Mark Brown 0d2cff8b67 Merge remote-tracking branch 'regulator/topic/max1586' into regulator-next 2012-12-10 12:42:58 +09:00
Mark Brown a8bfb69e77 Merge remote-tracking branch 'regulator/topic/lp8788' into regulator-next 2012-12-10 12:42:57 +09:00
Mark Brown bdb7e45507 Merge remote-tracking branch 'regulator/topic/log' into regulator-next 2012-12-10 12:42:56 +09:00
Mark Brown 1f9cc5f771 Merge remote-tracking branch 'regulator/topic/hotplug' into regulator-next 2012-12-10 12:42:55 +09:00
Mark Brown 207f30894a Merge remote-tracking branch 'regulator/topic/gpio' into regulator-next 2012-12-10 12:42:54 +09:00
Mark Brown db58e0270c Merge remote-tracking branch 'regulator/topic/da9055' into regulator-next 2012-12-10 12:42:53 +09:00
Mark Brown 4e62cce2b6 Merge remote-tracking branch 'regulator/topic/da9052' into regulator-next 2012-12-10 12:42:53 +09:00
Mark Brown 6234427eb8 Merge remote-tracking branch 'regulator/topic/change' into regulator-next 2012-12-10 12:42:52 +09:00
Mark Brown b0e5997ef4 Merge remote-tracking branch 'regulator/topic/as3711' into regulator-next 2012-12-10 12:42:51 +09:00
Mark Brown 7cac646816 Merge remote-tracking branch 'regulator/topic/arizona' into regulator-next 2012-12-10 12:42:51 +09:00
Axel Lin e1b0144f99 regulator: anatop: Use regulator_[get|set]_voltage_sel_regmap
Call regulator_[get|set]_voltage_sel_regmap instead of open code.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Ying-Chun Liu <paulliu@debian.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-10 12:38:59 +09:00
Axel Lin 985884db50 regulator: anatop: Use linear_min_sel with linear mapping
By setting linear_min_sel to anatop_reg->min_bit_val, we can avoid
adjust the anatop_reg->min_bit_val offset in [set|get]_voltage_sel.

With this chance we can refactor this driver to use
regulator_[get|set]_voltage_sel_regmap.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Ying-Chun Liu <paulliu@debian.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-10 12:38:09 +09:00
Axel Lin 4efd9dfecb regulator: max1586: Implement get_voltage_sel callback
This is required since commit f7df20ec32
"regulator: core: Use list_voltage() to read single voltage regulators",
otherwise _regulator_get_voltage returns rdev->desc->ops->list_voltage(rdev, 0).

The Maxim 1586 controls V3 and V6 voltages, but offers no way of reading back
the set up value. Thus this patch caches the setting when setting new voltage.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-10 12:23:56 +09:00
Axel Lin 2c12992787 regulator: lp872x: Kill _rdev_to_offset() function
There is only one user calling _rdev_to_offset() function.
Remove _rdev_to_offset() makes the code simpler.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-10 12:22:29 +09:00
Axel Lin 131a5b9d82 regulator: lp8788-buck: Kill _gpio_request function
Simply use devm_gpio_request_one() instead.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-10 12:18:43 +09:00
Axel Lin 7fa8a59757 regulator: tps80031: Convert tps80031_ldo_ops to linear_min_sel and list_voltage_linear
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-07 15:24:12 +09:00
Axel Lin 40b5aa8f0d regulator: lp8788-ldo: Remove val array in lp8788_config_ldo_enable_mode
To clear the mask bit, setting data argument to be 0 with proper mask setting
for lp8788_update_bits. We don't need the var array here.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-07 14:24:13 +09:00
Axel Lin ec4f7b88b4 regulator: gpio-regulator: Add ifdef CONFIG_OF guard for regulator_gpio_of_match
Use of_match_ptr and add ifdef CONFIG_OF guard for regulator_gpio_of_match.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-06 15:22:52 +09:00
Axel Lin bdc4baaceb regulator: palmas: Convert palmas_ops_smps to regulator_[get|set]_voltage_sel_regmap
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-06 15:20:53 +09:00
Axel Lin ad02e84687 regulator: palmas: Return raw register values as the selectors in [get|set]_voltage_sel
Don't adjust the selector in [get|set]_voltage_sel, fix it in list_voltage() instead.

For smps*(except smps10), the vsel reg-value and voltage mapping as below:

reg-value       volt (uV) ( Assume RANGE is x1 )
0               0
1               500000
2               500000
3               500000
4               500000
5               500000
6               500000 (0.49V + 1 * 0.01V) * RANGE
7               510000 (0.49V + 2 * 0.01V) * RANGE
8               520000 (0.49V + 3 * 0.01V) * RANGE
9               530000 (0.49V + 4 * 0.01V) * RANGE
....

The linear mapping is start from selector 6.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-06 15:20:52 +09:00
Marek Szyprowski d1e7de3007 regulators: add regulator_can_change_voltage() function
Introduce a regulator_can_change_voltage() function for the subsytems or
drivers which might check if applying voltage change is possible and use
special workaround code when the driver is used with fixed regulators or
regulators with disabled ability to change the voltage.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-06 15:13:34 +09:00
Axel Lin dbc705183a regulator: tps51632: Ensure [base|max]_voltage_uV pdata settings are valid
If pdata->base_voltage_uV is missing or the settings of pdata->base_voltage_uV
and pdata->max_voltage_uV are out of range, TPS51632_VOLT_VSEL macro
returns wrong vsel.

Thus add checking [base|max]_voltage_uV pdata settings in probe.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-03 00:15:14 +09:00
Axel Lin 43f1f2165e regulator: wm831x-dcdc: Add MODULE_ALIAS for wm831x-boostp
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-03 00:14:23 +09:00
Axel Lin 1a679930e1 regulator: wm831x-dcdc: Ensure selected voltage falls within requested range
Use DIV_ROUND_UP to ensure selected voltage won't less than min_uV due to
integer truncation.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-03 00:12:08 +09:00
Mark Brown 5d6e6ffc40 Merge branch 'topic/tps51632' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-min
Conflicts:
	drivers/regulator/tps51632-regulator.c
2012-11-28 19:24:48 +00:00
Axel Lin bd0ec7c1e5 regulator: tps51632: Use linear_min_sel and regulator_[map|list]_voltage_linear
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-28 19:21:32 +00:00
Axel Lin 05cf34c1af regulator: pcf50633: Use linear_min_sel and regulator_[map|list]_voltage_linear
This driver can be converted to use linear_min_sel and
regulator_[map|list]_voltage_linear.

Below shows the equation (from Datasheet) for each LDOs.

For AUTOOUT:
        VO(prog) = 0.625 + auto_out x 0.025 V; e.g.
        (00000000 to 00101110: reserved)
        00101111: 1.8 V (min)
        01010011: 2.7 V
        01101010: 3.275 V
        01101011: 3.300 V
        01101100: 3.325 V
        01111111 : 3.800 V (max)

        The linear mapping start from 0x2f selector.

        Thus we convert this equation to:
        VO(prog) = 1.8 + (selector - linear_min_sel) x 0.025 V
        (min_uV = 1800000, uV_step = 25000, linear_min_sel = 0x2f)

For DOWNxOUT:
        VO(prog) = 0.625 + downx_out x 0.025 V; e.g.
        00000000 : 0.625 V (min)
        00010111 : 1.200 V
        00101111 : 1.800 V
        01011111 : 3.000 V (max)

For xLDOOUT:
        VO(prog) = 0.9 + xldo_out x 0.1 V; e.g.
        00000: 0.9 V
        00001: 1.0 V
        11000 : 3.3 V
        11011 : 3.6 V

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-28 19:21:00 +00:00
Mark Brown 9507281855 regulator: arizona-micsupp: Add ramp time information
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-28 17:48:01 +00:00
Mark Brown fff15bef48 regulator: core: Say what unsupportable voltage constraints are
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-28 17:47:35 +00:00
Mark Brown dd8004af2b regulator: core: Log when a device causes a voltage constraint fail
Helps with figuring out when things went wrong.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-28 17:47:18 +00:00
Mark Brown 73ee29460e regulator: arizona-ldo1: Support 1.8V mode
Some Arizona device support a 1.8V output mode. Enable this in the driver.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-28 17:30:36 +00:00
Mark Brown 8a7f0c61c0 regulator: arizona-ldo1: Add additional top voltage
The number of voltage slots supported by the LDO is 7, not 6.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-28 17:30:33 +00:00
Mark Brown 55a18aef2e regulator: arizona-ldo1: Support DVFS in default constraints
Some Arizona devices such as the WM5102 can use DVFS on their digital core,
for these devices allow the voltage range to vary in the default setup.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-28 17:30:07 +00:00
Mark Brown 86a1450118 regulator: arizona-ldo1: Add enable time
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-28 17:30:05 +00:00
Axel Lin 7a4beda0c6 regulator: as3711: Fix the logic in as3711_sel_check
Below equation means the "voltage" is the "smallest" voltage within specific
range.

ret = DIV_ROUND_UP(min - bottom) / step;
voltage = ret * step + bottom;

If we do try 1 down when (voltage > max), new voltage is then less than min
voltage. Which means the new voltage is not in the requested voltage range.

This patch also includes below cleanups:
- Use DIV_ROUND_UP
- rename variable 'ret' to 'sel' for better readability because as3711_sel_check
  returns the selector.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-27 20:25:18 +00:00
Axel Lin 16ed9f0701 regulator: as3711: Fix valid min_uV/max_UV checking in as3711_bound_check
Below cases are supposed to be valid:

min_uV == max_uV == info->max_uV
min_uV == max_uV == rdev->desc->min_uV

Don't return -EINVAL for above cases.

This patch also includes below cleanups:
- Use rdev_get_drvdata(rdev) instead of rdev->reg_data.
- Remove unnecessary WARN_ON, it looks pointless.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-27 20:25:13 +00:00
Sangbeom Kim f7ebaaeb0b regulator: s2mps11: Fix ramp delay value shift operation
This patch fix the abnormal ramp delay setting.
The shift operation was wrong.

Signed-off-by: Sangbeom Kim <sbkim73@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
2012-11-27 20:24:15 +00:00
Axel Lin 1e369bcd03 regulator: da9052: Ensure setting current limit within specific range
Checking da9052_current_limits[row][i] <= max_uA is not enough, it is possible
da9052_current_limits[row][i] may less than the requested min_uA.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-27 20:22:53 +00:00
Axel Lin f509fd46c1 regulator: da9055: Select maximum current in specific range for set_current_limit
Selecting the minimal value is only true for voltage regulators.
For current regulators the maximum in the given range should be
selected instead.

This issue was reported by Heiko Stuebner for gpio-regulator driver [1],
and the conclusion is to select the max current for current regulators [2].

[1] https://lkml.org/lkml/2012/8/5/162
[2] https://lkml.org/lkml/2012/8/6/183

This patch also ensures da9055_buck_set_current_limit return -EINVAL when the
supported current limit does not meet the request range.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-27 20:21:26 +00:00
Laxman Dewangan 10835600cf regulator: tps6586x: fix build warning in debug build
When building the driver in debug mode, it generates
warning as

drivers/regulator/tps6586x-regulator.c: In function 'tps6586x_regulator_probe':
drivers/regulator/tps6586x-regulator.c:392:9: warning: 'id' is used uninitialized in this function [-Wuninitialized]

Fix this warning.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reported-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-27 20:20:04 +00:00
Axel Lin 9997f3ffbb regulator: tps51632: Fix writing to wrong register when enable_pwm_dvfs is set
When tps->enable_pwm_dvfs is true, write to TPS51632_VOLTAGE_BASE_REG rather
than TPS51632_VOLTAGE_SELECT_REG.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-27 20:17:01 +00:00
Axel Lin 6b1f8a4566 regulator: da9055: Use linear_min_sel and regulator_[map|list]_voltage_linear
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-27 20:11:19 +00:00
Mark Brown 5979b2a35f Merge branches 'topic/da9055' and 'topic/tps51632' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-min 2012-11-27 20:08:14 +00:00
Axel Lin 9119ff6af5 regulator: palmas: Use linear_min_sel and regulator_[map|list]_voltage_linear
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-27 20:07:40 +00:00
Axel Lin 33234e791d regulator: core: Allow specific minimal selector for starting linear mapping
Some drivers (at least 3 drivers) have such variant of linear mapping that
the first few selectors are invalid and the reset are linear mapping.
Let's support this case in core.

This patch adds linear_min_sel in struct regulator_desc,
so we can allow specific minimal selector for starting linear mapping.
Then extends regulator_[map|list]_voltage_linear() to support this feature.

Note that for selectors less than min_linear_index, we need count them to
n_voltages so regulator_list_voltage() won't fail while checking the boundary
for selector before calling list_voltage callback.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-27 20:07:40 +00:00
Mark Brown b87d07b13c Merge branch 'topic/hotplug' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-max8997
Conflicts:
	drivers/regulator/max8997.c
2012-11-27 20:06:08 +00:00
Thomas Abraham 77b71b370e regulator: add device tree support for max8997
Add device tree based discovery support for max8997.

Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-27 20:05:36 +00:00
Thomas Abraham 068a8c8239 regulator: max8997: limit the number of dvs registers programmed in non-dvs mode
In case the gpio based volatage selection mode is not used for either of
buck 1/2/5, then only the BUCKxDVS1 register need to be programmed. So
determine whether dvs mode is used and limit the loop count appropriately.

Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-24 18:57:04 +01:00
Thomas Abraham 11ec7bf001 regulator: max8997: reorder buck1/2/5 dvs setup code
The BUCKxDVSx register programming is now moved prior to setting up of the
gpio based dvs mode. This will ensure that all the BUCKxDVSx registers
are programmed with appropriate voltage values before the gpio based dvs
mode is selected for buck1/2/5.

Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-24 18:56:32 +01:00
Axel Lin d95420b860 regulator: tps65090: Add MODULE_ALIAS
This driver can be built as a module, add MODULE_ALIAS for it.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-24 18:50:35 +01:00
Laxman Dewangan 56968658ff regulator: max8973: provide enable/disable if external control disabled
If external control is enabled then do not provide regulator
enable/disable apis.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-23 21:16:35 +09:00
Guennadi Liakhovetski f1e64f9026 regulator: add a regulator driver for the AS3711 PMIC
This driver supports the 4 DCDC and 8 LDO regulators on the AS3711 PMIC.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-23 21:14:40 +09:00
Axel Lin bf0caae303 regulator: tps80031: Implement list_voltage and set n_voltages = 1 for fixed regulators
Implement list_voltage for fixed regulators, otherwise
regulator_is_supported_voltage() returns 0.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-23 21:13:01 +09:00
Axel Lin 1a7ae58e2c regulator: tps80031: Trivial cleanups
This patch includes below cleanups:

- Fix typo in comment
- Fix showing wrong register in dev_err
- Remove unnecessary rinfo variable
- Add TPS80032 to MODULE_DESCRIPTION

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-23 21:12:57 +09:00
Axel Lin e05f70c268 regulator: max8973: Fix callback setting for max8973_dcdc_ops.enable
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-22 11:07:10 +09:00
Axel Lin 369cf602f3 regulator: da9055: Properly handle voltage range that doesn't start with 0 offset
This patch implements map_voltage and list_voltage callbacks to properly handle
the case voltage range that doesn't start with 0 offset.

Now we adjust the selector in map_voltage() before calling set_voltage_sel().
And return 0 in list_voltage() for invalid selectors.

With above change, we can remove da9055_regulator_set_voltage_bits function.

One tricky part is that we need adding voffset to n_voltages.
Although for the cases "selector < voffset" are invalid, we need add voffset to
n_voltage so regulator_list_voltage() won't fail while checking the boundary for
selector before calling list_voltage callback.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Tested-by: Ashish Jangam <ashish.jangam@kpitcummins.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-21 18:50:52 +09:00
Bill Pemberton 8dc995f56e regulator: remove use of __devexit
CONFIG_HOTPLUG is going away as an option so __devexit is no
longer needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-20 10:53:38 +09:00
Mark Brown 13ae633cf7 regulator: wm831x: Set the new rather than old value for DVS VSEL
Reported-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
2012-11-20 10:42:13 +09:00
Mark Brown ce6dd5da9d Merge branch 'topic/tps6586x' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-hotplug
Conflicts:
	drivers/regulator/tps6586x-regulator.c
2012-11-20 10:39:55 +09:00
Bill Pemberton a5023574d1 regulator: remove use of __devinit
CONFIG_HOTPLUG is going away as an option so __devinit is no longer
needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-20 10:31:26 +09:00
Bill Pemberton 5eb9f2b963 regulator: remove use of __devexit_p
CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer
needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-20 10:31:19 +09:00
Mark Brown f86221d2b9 Merge branches 'topic/tps51632', 'topic/tps80031', 'topic/vexpress', 'topic/max8925', 'topic/gpio' and 'topic/tps65090' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-hotplug 2012-11-20 10:30:22 +09:00
Laxman Dewangan 5928f53896 regulator: max8973: add regulator driver support
The MAXIM MAX8973 high-efficiency, three phase, DC-DC step-down
switching regulator delievers up to 9A of output current. Each
phase operates at a 2MHz fixed frequency with a 120 deg shift
from the adjacent phase, allowing the use of small magnetic
component.

Add regulator driver for this device.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-19 17:03:11 +09:00
Axel Lin 26cbd30733 regulator: da9055: Fix checking wrong value in da9055_gpio_init
Check pdata->gpio_rsel && pdata->gpio_rsel[id] for the case GPI pin is muxed
with regulator to select the regulator register set A/B for voltage ramping.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-16 09:46:57 +09:00
Laxman Dewangan b92f787d14 regulator: tps80031: add prefix TPS80031 on common defines.
Pefix "TPS80031" is added on all defines of tps80031 header
to avoid conflict with other header definitions.
Update the regualtor driver of tps80031 to use the same name.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-15 14:35:50 +09:00
Ashish Jangam f6130be652 regulator: DA9055 regulator driver
This is the Regulator patch for the DA9055 PMIC and has got dependency on
the DA9055 MFD core.

This patch support all of the DA9055 regulators. The output voltages are
fully programmable through I2C interface only. The platform data with regulation
constraints is passed down from the board to the regulator.

This patch is functionaly tested on SMDK6410 board. DA9055 Evaluation board
was connected to the SMDK6410 board.

Signed-off-by: David Dajun Chen <dchen@diasemi.com>
Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-15 14:29:49 +09:00
Laxman Dewangan 64e481603a mfd: tps6586x: move regulator dt parsing to regulator driver
Moving regulator node parsing to regulator driver in place
of parsing it on mfd driver.
The motivation for this change are:
- MFD core driver should not depends on regulator and able
  to instantiate device without regulator.
- The API for matching regulators are in regulator core and
  it is good that regulator driver only calls this API.
- Regulator specific support should be in regulator driver only
  to ease any enhancement/modification for regulators.
- The regulator driver is now registered as mfd sub device and
  all regulator registration is done from single probe call.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-15 14:23:17 +09:00
Mark Brown ecb48c337b Merge remote-tracking branches 'regulator/fix/gpio', 'regulator/fix/put' and 'regulator/fix/supp-volt' into tmp 2012-11-15 11:16:02 +09:00
Marek Szyprowski f0f98b19e2 regulator: fix voltage check in regulator_is_supported_voltage()
regulator_is_supported_voltage() should return true only if the voltage
of fixed/constant regulator is between min_uV and max_uV.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
2012-11-15 11:14:18 +09:00
Lee Jones 216f2b9c95 regulator: gpio-regulator: Catch 'no states property' misuse
A selection of voltage or current values (AKA states) should always
be specified when using a GPIO regulator. If there are no switchable
states then the fixed regulators should be used instead.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-14 20:58:09 +09:00
Charles Keepax 23ff2f0f61 regulator: core: Avoid deadlock when regulator_register fails
When regulator_register fails and exits through the scrub path the
regulator_put function was called whilst holding the
regulator_list_mutex, causing deadlock.

This patch adds a private version of the regulator_put function which
can be safely called whilst holding the mutex, replacing the
aforementioned call.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-14 19:01:15 +09:00
Frank Li f8a9f757cb regulator: gpio-regulator: fix can't find regulator node in dt
Need initilize of_node in regulator config when register regulator,
otherwise regulator driver think it is no-dt device.

in regulator_dev_lookup
list_for_each_entry(r, &regulator_list, list)
	if (r->dev.parent &&
		node == r->dev.of_node)
			return r

r->dev.of_noe will be zero if miss config in cfg.

Signed-off-by: Frank Li <Frank.Li@freescale.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-13 16:35:57 +09:00
Laxman Dewangan 1a0bb679bc regulator: tps80031: add regulator driver for tps80031
Add regulator driver for Texas Instrument TPS80031/TPS80032 device.
TPS80031/ TPS80032 Fully Integrated Power Management with Power
Path and Battery Charger. It has 5 configurable step-down
converters, 11 general purpose LDOs, VBUS generator and digital
output to control regulators.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-13 15:57:39 +09:00
Qing Xu 45b6f8e8fc regulator: max8925: support dt for regulator
Signed-off-by: Qing Xu <qingx@marvell.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-07 15:12:12 +01:00
Axel Lin 7bde76726f regulator: tps51632: Fix trivial typo for TPS51632 Kconfig help text
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-01 14:23:04 +00:00
Andrew Lunn b2da55d944 Regulator: core: Unregister when gpio request fails.
If the gpio_request_one() fails, or returns EPROBE_DEFER, the
regulator must be device_unregister()ed. When this is not done,
there are WARNING: from sysfs:

WARNING: at fs/sysfs/file.c:343 sysfs_open_file+0x238/0x268()

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-28 18:13:07 +00:00
Yadwinder Singh Brar 38d34035e6 regulator: max77686: Make max77686_enable() static.
This patch fixes a sparse warning. Since max77686_enable() is a callback,so it
should be static.

Signed-off-by: Yadwinder Singh Brar <yadi.brar@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-22 14:55:36 +01:00
Lee Jones 006694d099 regulator: gpio-regulator: Allow use of GPIO controlled regulators though DT
Here we provide the GPIO Regulator driver with Device Tree capability, so
that when a platform is booting with DT instead of platform data we can
still make full use of it.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-17 22:27:55 +09:00
Laxman Dewangan f329b1755b regulator: tps65090: add external control support for DCDC
The TPS65090's DCDC output can also be enable/disable through the
external digital input signal. Add support for enable/disable
either through register access via I2C or through external
control inputs. The external control inputs can be driven through
GPIOs also and hence adding support for passing the GPIO number.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-17 22:21:21 +09:00
Laxman Dewangan 3a81ef8c27 regulator: tps65090: Add support for LDO regulators
TPS65090 supports the two LDOs, LDO1 and LDO2. These are
always ON regulators. The output on these LDOs are available
once the input voltage available for these LDOs.
Add support for these LDOs regulators.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-17 22:21:20 +09:00
Laxman Dewangan 8620ca9f77 regulator: tps65090: rename driver name and regulator name
To make the names proper and more appropriate:
Rename the driver name from tps65090-regulator to tps65090-pmic.
Rename the regulators from TPS65090_ID_* to TPS65090_REGULATOR_*

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-17 22:21:20 +09:00
Laxman Dewangan 24282a1ca3 regulator: tps65090: Register all regulators in single probe call
MFD driver registers the regulator driver once per device and
hence it is require to register all regulators in single probe
call.
Following are details of changes done to achieve this:
- Move the regulator enums to mfd header and remove the
  tps65090-regulator.h as it does not contain more info.
- Add max regulator and register all regulators even if there
  is no regulator init data from platform.
- Convert regulator init data to pointer type in platform data.
- Add input supply name in regulator desc to provide input supply.
- Separate desc information from driver information.
- Disable external control bit to have control through register write.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-17 22:21:14 +09:00
AnilKumar Ch a9a5659ac6 regulator: tps65910: fix BUG_ON() shown with vrtc regulator
Fix BUG_ON() error if tps65910 VRTC regulator is used with out
rdev->desc->volt_table data. Recent changes in regulator core driver
which add support for "regulator_list_voltage_table" have BUG_ON() if
regulator descriptor do not voltage table information. This patch adds
the voltage table information to fix the issue.

Signed-off-by: AnilKumar Ch <anilkumar@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-17 22:17:39 +09:00
Yadwinder Singh Brar 15282ba9ea regulator: max77686: Add set_suspend_disable/set_suspend_mode callbacks.
This patch implements set_suspend_disable callback for BUCKs which
support only switch ON/OFF modes during system suspend state, and
set_suspend_mode callbacks for LDOs which also suport Low power mode and
switch ON/OFF modes.

Signed-off-by: Yadwinder Singh Brar <yadi.brar@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-17 22:16:21 +09:00
Yadwinder Singh Brar 6d2c896b72 regulator: max77686: Use already set opmode while re-enabling regulators.
This patch adds basic support to take care of opmode(if any) which can be set by
set_suspend_[disable/mode] callbacks.

Signed-off-by: Yadwinder Singh Brar <yadi.brar@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-17 22:16:21 +09:00
Axel Lin 9f4e45f77e regulator: vexpress: Add terminating entry for vexpress_regulator_of_match table
The of_device_id table is supposed to be zero-terminated.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-17 16:34:08 +09:00
Pawel Moll 31e54086dd regulator: Versatile Express regulator driver
Implementation of the regulator framework driver for the
Versatile Express voltage control. Devices without
voltage constraints (ie. "regulator-[min|max]-microvolt"
properties in the DT node) are treated as fixed (or rather
read-only) regulators.

Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-15 11:56:08 +09:00
Pawel Moll bd7a2b600a regulator: core: Support for continuous voltage range
Some regulators can set any voltage within the constraints range,
not being limited to specified operating points.

This patch makes it possible to describe such regulator and makes
the regulator_is_supported_voltage() function behave correctly.

Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-15 11:56:08 +09:00
Laxman Dewangan 0c57067430 regulator: tps51632: Add tps51632 regulator driver
The TPS51632 is a driverless step down controller with
serial control. Advanced features such as D-Cap+
architecture with overlapping pulse support and OSR
overshoot reduction provide fast transient response,
lowest output capacitance and high efficiency.
The TPS51632 supports both I2C and DVFS interfaces
(through PWM) for dynamic control of the output voltage
and current monitor telemetry.
Add regulator driver for TPS51632.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-15 11:54:42 +09:00
Mark Brown 4e92920b4b regulator: lp8788-ldo: Staticise non-exported symbol
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-15 10:06:44 +09:00
Linus Torvalds 578f1ef91a MFD bits for the 3.7 merge window.
As usual we have a few new drivers:
 
 - TI LP8788
 - TI OMAP USB TLL
 - Maxim MAX8907
 - SMSC ECE1099
 - Dialog Semiconductor DA9055
 - A simpler syscon driver that allow us to get rid of the anatop one.
 
 Drivers are also gradually getting Device Tree and IRQ domain support.
 
 The following drivers got DT support:
 - palmas, 88pm860x, tc3589x and twl4030-audio
 
 And those ones now use the IRQ domain APIs:
 - 88pm860x, tc3589x, db8500_prcmu
 
 Also some other interesting changes:
 - Intel's ICH LPC now supports Lynx Point
 - TI's twl4030-audio added a GPO child
 - tps6527 enabled its backlight subdevice
 - The twl6030 pwm driver moved to the new PWM subsystem
 
 And finally a bunch of cleanup and casual fixes for mc13xxx, 88pm860x, palmas,
 ab8500, wm8994, wm5110, max8907 and the tps65xxx family.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIcBAABAgAGBQJQbVq4AAoJEIqAPN1PVmxKXOsP/ifwoqYkaGUsZ7M8b8iTTxlk
 a0/SBU1O+FDG7LbIsOyJ6VZCpipj8R4WyVqNdS2CSPVoSdT8KnakrxFY9FAtcmpA
 c6O7r+9dymcT7HeQ6mBQYYeEyXcZQkTXj9Y298zuRT88gccH5PQIOX8DTj6gKVxN
 xhuDuAWtizvwAJWfof/57p7JLilCF96Hq0UdeISD10UWJPxPmXFJTzzYw6GbPPOl
 zk1N6yig3VpK6sfK+QdqZykHFKj23RX57SmceHOISTpEr66ayuKIkJEqWm/IydMO
 XWDTT2IN80ca+1PnbrQOyiMtXg3EKrZN5WDEp2AcUiKP0fnAoZBTeuZUkqyLc3rJ
 W8LowQe6x5154CeLwcJc4+kmeGUhbj09GHKCsI7x/lQpMWgJCaGHGvLxAUE1uRZi
 4Bn9IUP7OqE465fNolLOd1fRxgzWJxe5rBYKQB7UcOrS0NThPhu0r0qV905zBrBO
 tyCZz+PexTiirpbv1K0dMTcpWeHVOmtYG5uJTmw9wTRv7jW7aUhkhkW5Q+E5BAdb
 9Rj5/vYertqI3VzRQ1w2z1SavzBO3OykTURWGDkwjfFWYbJtEdPYGGjRSFiphVYG
 8jvs5UzrDm2ICqkpkKzovVWi9lXyvNVVCgSwxHQeoPXfqb5dXLlbUZZBaCaQpRII
 XlItAJvIiUNIA8bXLoC8
 =n6lp
 -----END PGP SIGNATURE-----

Merge tag 'mfd-3.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6

Pull MFD changes from Samuel Ortiz:
 "MFD bits for the 3.7 merge window.

  As usual we have a few new drivers:

   - TI LP8788
   - TI OMAP USB TLL
   - Maxim MAX8907
   - SMSC ECE1099
   - Dialog Semiconductor DA9055
   - A simpler syscon driver that allow us to get rid of the anatop one.

  Drivers are also gradually getting Device Tree and IRQ domain support.

  The following drivers got DT support:
   - palmas, 88pm860x, tc3589x and twl4030-audio

  And those ones now use the IRQ domain APIs:
   - 88pm860x, tc3589x, db8500_prcmu

  Also some other interesting changes:
   - Intel's ICH LPC now supports Lynx Point
   - TI's twl4030-audio added a GPO child
   - tps6527 enabled its backlight subdevice
   - The twl6030 pwm driver moved to the new PWM subsystem

  And finally a bunch of cleanup and casual fixes for mc13xxx, 88pm860x,
  palmas, ab8500, wm8994, wm5110, max8907 and the tps65xxx family."

Fix up various annoying conflicts: the DT and IRQ domain support came in
twice and was already in 3.6. And then it was apparently rebased.

Guys, DON'T REBASE!

* tag 'mfd-3.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (89 commits)
  ARM: dts: Enable 88pm860x pmic
  mfd: 88pm860x: Move gpadc init into touch
  mfd: 88pm860x: Device tree support
  mfd: 88pm860x: Use irqdomain
  mfd: smsc: Add support for smsc gpio io/keypad driver
  backlight: tps65217_bl: Add missing platform_set_drvdata in tps65217_bl_probe
  mfd: DA9055 core driver
  mfd: tps65910: Add alarm interrupt of TPS65910 RTC to mfd device list
  mfd: wm5110: Add register patches for revision B
  mfd: wm5110: Disable control interface error report for WM5110 rev B
  mfd: max8907: Remove regulator-compatible from DT docs
  backlight: Add TPS65217 WLED driver
  mfd: Add backlight as subdevice to the tps65217
  mfd: Provide the PRCMU with its own IRQ domain
  mfd: Fix max8907 sparse warning
  mfd: Add lp8788 mfd driver
  mfd: dbx500: Provide a more accurate smp_twd clock
  mfd: rc5t583: Fix warning messages
  regulator: palmas: Add DT support
  mfd: palmas: Change regulator defns to better suite DT
  ...
2012-10-05 12:01:30 +09:00
Linus Torvalds 033d9959ed Merge branch 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue changes from Tejun Heo:
 "This is workqueue updates for v3.7-rc1.  A lot of activities this
  round including considerable API and behavior cleanups.

   * delayed_work combines a timer and a work item.  The handling of the
     timer part has always been a bit clunky leading to confusing
     cancelation API with weird corner-case behaviors.  delayed_work is
     updated to use new IRQ safe timer and cancelation now works as
     expected.

   * Another deficiency of delayed_work was lack of the counterpart of
     mod_timer() which led to cancel+queue combinations or open-coded
     timer+work usages.  mod_delayed_work[_on]() are added.

     These two delayed_work changes make delayed_work provide interface
     and behave like timer which is executed with process context.

   * A work item could be executed concurrently on multiple CPUs, which
     is rather unintuitive and made flush_work() behavior confusing and
     half-broken under certain circumstances.  This problem doesn't
     exist for non-reentrant workqueues.  While non-reentrancy check
     isn't free, the overhead is incurred only when a work item bounces
     across different CPUs and even in simulated pathological scenario
     the overhead isn't too high.

     All workqueues are made non-reentrant.  This removes the
     distinction between flush_[delayed_]work() and
     flush_[delayed_]_work_sync().  The former is now as strong as the
     latter and the specified work item is guaranteed to have finished
     execution of any previous queueing on return.

   * In addition to the various bug fixes, Lai redid and simplified CPU
     hotplug handling significantly.

   * Joonsoo introduced system_highpri_wq and used it during CPU
     hotplug.

  There are two merge commits - one to pull in IRQ safe timer from
  tip/timers/core and the other to pull in CPU hotplug fixes from
  wq/for-3.6-fixes as Lai's hotplug restructuring depended on them."

Fixed a number of trivial conflicts, but the more interesting conflicts
were silent ones where the deprecated interfaces had been used by new
code in the merge window, and thus didn't cause any real data conflicts.

Tejun pointed out a few of them, I fixed a couple more.

* 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: (46 commits)
  workqueue: remove spurious WARN_ON_ONCE(in_irq()) from try_to_grab_pending()
  workqueue: use cwq_set_max_active() helper for workqueue_set_max_active()
  workqueue: introduce cwq_set_max_active() helper for thaw_workqueues()
  workqueue: remove @delayed from cwq_dec_nr_in_flight()
  workqueue: fix possible stall on try_to_grab_pending() of a delayed work item
  workqueue: use hotcpu_notifier() for workqueue_cpu_down_callback()
  workqueue: use __cpuinit instead of __devinit for cpu callbacks
  workqueue: rename manager_mutex to assoc_mutex
  workqueue: WORKER_REBIND is no longer necessary for idle rebinding
  workqueue: WORKER_REBIND is no longer necessary for busy rebinding
  workqueue: reimplement idle worker rebinding
  workqueue: deprecate __cancel_delayed_work()
  workqueue: reimplement cancel_delayed_work() using try_to_grab_pending()
  workqueue: use mod_delayed_work() instead of __cancel + queue
  workqueue: use irqsafe timer for delayed_work
  workqueue: clean up delayed_work initializers and add missing one
  workqueue: make deferrable delayed_work initializer names consistent
  workqueue: cosmetic whitespace updates for macro definitions
  workqueue: deprecate system_nrt[_freezable]_wq
  workqueue: deprecate flush[_delayed]_work_sync()
  ...
2012-10-02 09:54:49 -07:00