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Commit Graph

2334 Commits

Author SHA1 Message Date
Javier Martinez Canillas
5e5e3a42c6 regulator: of: Add support for parsing initial and suspend modes
Some regulators support their operating mode to be changed on startup
or by consumers when the system is running while others only support
their operating mode to be changed while the system has entered in a
suspend state.

The regulator Device Tree binding documents a set of properties to
configure the regulators operating modes from a FDT. This patch builds
on (40e20d6 regulator: of: Add support for parsing regulator_state for
suspend state) and adds support to parse those properties and fill the
regulator constraints so the regulator core can call the right suspend
handlers when the system enters into sleep.

The modes are defined in the Device Tree using the hardware specific
modes supported by the regulators. Regulator drivers have to define a
translation function that is used to map the hardware specific modes
to the standard ones.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-26 18:58:14 +00:00
Javier Martinez Canillas
75d6b2faf7 regulator: of: Pass the regulator description in the match table
Drivers can use the of_regulator_match() function to parse the regulator
init_data from DT. A match table is used to specify the name of the node
containing the regulators, the device node and to return the init_data
to the caller.

But also the static regulator descriptor is needed to correctly extract
some DT properties like the regulator initial and suspend modes. Use the
match table to pass that information.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-26 18:58:14 +00:00
Javier Martinez Canillas
072e78b12b regulator: of: Add regulator desc param to of_get_regulator_init_data()
The of_get_regulator_init_data() function is used to extract the regulator
init_data but information on how to extract certain data is defined in the
static regulator descriptor (e.g: how to map the hardware operating modes).

Add a const struct regulator_desc * parameter to the function signature so
the parsing logic could use the information in the struct regulator_desc.

of_get_regulator_init_data() relies on of_get_regulation_constraints() to
actually extract the init_data so it has to pass the struct regulator_desc
but that is modified on a later patch.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-26 18:58:14 +00:00
Doug Anderson
8cbcaea89c regulator: of: Add support for parsing microvolts for suspend state
Leverage all the work that was done in (40e20d6 regulator: of: Add
support for parsing regulator_state for suspend state) and throw in
the ability to set suspend microvolts from the device tree.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-03 12:29:02 +00:00
Krzysztof Kozlowski
f32fa89ca9 regulator: Staticize 'regulator_states' array
The 'regulator_states' array is used only in this unit and it is not
exported. Make it static.

This also fixes following sparse warning:
drivers/regulator/of_regulator.c:22:12: warning: symbol 'regulator_states' was not declared. Should it be static?

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-31 18:13:38 +00:00
Javier Martinez Canillas
4eafec83aa regulator: of: Decrement refcount for suspend state nodes
of_get_regulation_constraints() calls of_get_child_by_name() to find the
regulator-state-{mem,disk} child nodes for each regulator. This function
increments the device node reference counter but this is not decremented
once the function is done using the node.

Fix that by calling of_node_put() after finishing using the device node.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-22 17:34:36 +01:00
Chanwoo Choi
40e20d68bb regulator: of: Add support for parsing regulator_state for suspend state
The regulation_constraints structure includes specific field to support
suspend state for global PMIC SUSPEND/HIBERNATE mode. This patch add support
for parsing regulator_state for suspend state.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-20 12:24:13 +01:00
Linus Torvalds
50fa86172b power supply and reset changes for the v3.18 series
- Initial support for the following chips
   * max77836 (charger)
   * max14577 (charger)
   * bq27742 (battery gauge)
   * ltc2952 (poweroff)
   * stih416 (restart)
   * syscon-reboot (restart)
   * gpio-restart (restart)
  - cleanup of power supply core
  - misc. fixes in power supply and reset drivers
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Merge tag 'for-v3.18' of git://git.infradead.org/battery-2.6

Pull power supply and reset updates from Sebastian Reichel:
 - Initial support for the following chips
   * max77836 (charger)
   * max14577 (charger)
   * bq27742 (battery gauge)
   * ltc2952 (poweroff)
   * stih416 (restart)
   * syscon-reboot (restart)
   * gpio-restart (restart)
 - cleanup of power supply core
 - misc fixes in power supply and reset drivers

* tag 'for-v3.18' of git://git.infradead.org/battery-2.6: (48 commits)
  power: ab8500_fg: Fix build warning
  Documentation: charger: max14577: Update the date of introducing ABI
  power: reset: corrections for simple syscon reboot driver
  Documentation: power: reset: Add documentation for generic SYSCON reboot driver
  power: reset: Add generic SYSCON register mapped reset
  bq27x00_battery: Fix flag reading for bq27742
  power: reset: use restart_notifier mechanism for msm-poweroff
  power: Add simple gpio-restart driver
  power: reset: st: Provide DT bindings for ST's Power Reset driver
  power: reset: Add restart functionality for STiH41x platforms
  power: charger-manager: Fix NULL pointer exception with missing cm-fuel-gauge
  power: max14577: Fix circular config SYSFS dependency
  power: gpio-charger: do not use gpio value directly
  power: max8925: Use of_get_child_by_name
  power: max8925: Fix NULL ptr dereference on memory allocation failure
  bq27x00_battery: Add support to bq27742
  Documentation: charger: max14577: Document exported sysfs entry
  devicetree: mfd: max14577: Add device tree bindings document
  power: max17040: Add ID for MAX77836 Fuel Gauge block
  charger: max14577: Configure battery-dependent settings from DTS and sysfs
  ...

Conflicts:
	drivers/power/reset/Kconfig
	drivers/power/reset/Makefile
2014-10-15 06:56:23 +02:00
Mark Brown
ad21edcdb2 Merge remote-tracking branches 'regulator/topic/tps65217', 'regulator/topic/tps65910' and 'regulator/topic/voltage-ev' into regulator-next 2014-09-30 13:50:31 +01:00
Mark Brown
6d9deb7ad4 Merge remote-tracking branches 'regulator/topic/rk808', 'regulator/topic/rn5t618' and 'regulator/topic/samsung' into regulator-next 2014-09-30 13:50:30 +01:00
Mark Brown
64b285ad7b Merge remote-tracking branches 'regulator/topic/max1586', 'regulator/topic/max77802' and 'regulator/topic/of' into regulator-next 2014-09-30 13:50:29 +01:00
Mark Brown
a81bf3c4fc Merge remote-tracking branches 'regulator/topic/drivers', 'regulator/topic/enable', 'regulator/topic/fan53555', 'regulator/topic/hi6421' and 'regulator/topic/isl9305' into regulator-next 2014-09-30 13:50:27 +01:00
Mark Brown
95528a55db Merge remote-tracking branches 'regulator/topic/as3711', 'regulator/topic/axp20x', 'regulator/topic/bcm590xx' and 'regulator/topic/da9211' into regulator-next 2014-09-30 13:50:25 +01:00
Mark Brown
4d93b0253c Merge remote-tracking branches 'regulator/fix/da9211', 'regulator/fix/ltc3589' and 'regulator/fix/tps65023' into regulator-linus 2014-09-30 13:50:23 +01:00
James Ban
4e7089f3f7 regulator: da9211: Fix a bug in update of mask bit
This is a patch for fixing a bug about mask bit operation.

Signed-off-by: James Ban <james.ban.opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-30 13:46:46 +01:00
Mark Brown
fdaff15ae6 Merge remote-tracking branch 'regulator/topic/sky81452' into regulator-drivers
Conflicts:
	drivers/regulator/Kconfig
	drivers/regulator/Makefile
2014-09-28 12:17:00 +01:00
Mark Brown
d1c3f7ca15 Merge remote-tracking branch 'regulator/topic/pwm' into regulator-drivers
Conflicts:
	drivers/regulator/Kconfig
2014-09-28 12:14:26 +01:00
Chris Zhong
aa66cc6630 regulator: pwm-regulator: get voltage and duty table from dts
rename st-pwm to pwm-regulator. And support getting voltage & duty table from
device tree, other platforms can also use this driver without any modify.

Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-28 11:35:53 +01:00
Axel Lin
6a64250980 regulator: qcom_rpm: Fix FORCE_MODE_IS_2_BITS macro
Current code does not take the macro parameter, fix it.
This is not a problem at this moment because the only user actually passes
vreg to FORCE_MODE_IS_2_BITS().

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-26 09:28:40 +01:00
Axel Lin
aad615c632 regulator: qcom_rpm: Don't explicitly initialise the first field of config
Doing so generates a warning as the first field is a pointer but we use
0 to initialize it.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-26 09:28:40 +01:00
Steffen Trumtrar
c5bb725ac2 regulator: ltc3589: fix broken voltage transitions
VCCR is used as a trigger to start voltage transitions, so
we need to mark it volatile in order to make sure it gets
written to hardware every time we set a new voltage.

Fixes regulator voltage being stuck at the first voltage
set after driver load.

[lst: reworded commit message]
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
2014-09-26 09:22:50 +01:00
Krzysztof Kozlowski
b8f139f68f regulator/mfd: max14577: Export symbols for calculating charger current
This patch prepares for changing the max14577 charger driver to allow
configuring battery-dependent settings from DTS.

The patch moves from regulator driver to MFD core driver and exports:
 - function for calculating register value for charger's current;
 - table of limits for chargers (MAX14577, MAX77836).

Previously they were used only by the max14577 regulator driver. In next
patch the charger driver will use them as well. Exporting them will
reduce unnecessary code duplication.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Mark Brown <broonie@linaro.org>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-09-24 15:25:47 +01:00
Bjorn Andersson
2720386ec5 regulator: qcom-rpm: Regulator driver for the Qualcomm RPM
Driver for regulators exposed by the Resource Power Manager (RPM) found
in Qualcomm 8660, 8960 and 8064 based devices.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-24 09:35:10 +01:00
Maxime Ripard
0d90ecf31e regulator: axp20x: Use parent device as regulator configuration device
The current device used for the regulator configuration is the child device
created by the MFD driver. This means that it doesn't have any of_node pointing
to it, and whenever we register the regulators, it will not look into the
regulator supply in the DT, hence requiring to provide regulator aliases in the
MFD driver.

We can easily fix that by using the parent device in our configuration, which
has a DT node associated to it, and will allow a DT lookup. Eventually, we will
be able to remove the aliases in the MFD driver.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-22 18:18:59 -07:00
Axel Lin
e13426bf24 regulator: fan53555: Fix null pointer dereference
Set di->regulator before dereference it.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-18 11:01:10 -07:00
Axel Lin
fe230531b3 regulator: fan53555: Fixup report wrong vendor message
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-18 11:01:07 -07:00
Heiko Stübner
6f34163c54 regulator: fan53555: fix wrong cast in probe
The vendor-id gathered from the dt match-data was cast to int but assigned
to an unsigned long, producing warnings on at least sparc, like

   drivers/regulator/fan53555.c: In function 'fan53555_regulator_probe':
>> drivers/regulator/fan53555.c:373:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
      di->vendor = (int) match->data;

Fix this by using an appropriate cast.

Reported-by: kbuild test robot
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-17 09:48:59 -07:00
Heiko Stuebner
ee30928ab6 regulator: fan53555: add support for Silergy SYR82x regulators
Silergy SYR82x regulators share the exact same functionality and register layout
as the Fairchild FAN53555 regulators. Therefore extend the driver to add
support for them.

Both types use the same vendor id in their ID1 register, so it's not possible
to distinguish them automatically.

Similarly, the types also do not match. Type 8 used by the SYR827 and SYR828
start at 712.5mV and increment in 12.5mv steps, while the FAN53555 type 8
starts at 600mV and increments in 10mV steps.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-16 16:09:32 -07:00
Heiko Stuebner
91f23d8fb6 regulator: fan53555: add devicetree support
Add the ability to parse regulator-data from the devicetree.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-16 16:09:31 -07:00
Doug Anderson
8af252272a regulator: rk808: Add function for ramp delay for buck1/buck2
On rk808 buck1 and buck2 have programmable ramp delays.  Let's add a
function to allow a client of rk808 to set them.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-16 11:27:53 -07:00
Heiko Stuebner
dd7e71fbee regulator: fan53555: use set_ramp_delay to set the ramp up slew rate
The regulator constraints already provide a field for the ramp_delay, so
there is no need to set this manually. Therefore implement the set_ramp_delay
callback and convert the pdata value to the constraint value if necessary.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-16 09:56:11 -07:00
Heiko Stuebner
3415d60113 regulator: fan53555: enable vin supply
The regulator can be supplied by a parent regulator through its vin pin,
so add the supply_name for it.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-15 14:49:35 -07:00
Axel Lin
1ed3f8ce83 regulator: rk808: Fix missing of_node_put
1. Pass &pdev->dev rather than &client->dev to of_regulator_match, the *dev
   argument is used for devres to ensure devm_of_regulator_put_matches() will
   be called when unload the module.

2. of_get_child_by_name() returns a node pointer with refcount incremented.
   Thus add missing of_node_put(reg_np).

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-12 14:53:09 +01:00
Axel Lin
1f0c01621a regulator: rk808: Remove unused variables
Also remove non-informative comment.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-12 14:53:09 +01:00
Mark Brown
ef126a4a81 regulator: of: Add stub OF match function for !OF case
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-10 16:40:07 +01:00
Axel Lin
ba441ec225 regulator: isl9305: REGULATOR_ISL9305 needs to select REGMAP_I2C
Fix ERROR: "devm_regmap_init_i2c" [drivers/regulator/isl9305.ko] undefined!

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-10 12:45:48 +01:00
Mark Brown
93a127b11a regulator: isl9305: Convert to new style DT parsing
This removes some code and replaces it with data.

Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-10 12:18:56 +01:00
Mark Brown
3f7c696375 Merge branch 'topic/of' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-isl9305 2014-09-10 12:03:23 +01:00
Mark Brown
7d42a7f293 regulator: tps65217: Use simplified DT parsing
Remove a bunch of code in favour of data.

Signed-off-by: Mark Brown <broonie@linaro.org>
2014-09-10 12:02:48 +01:00
Mark Brown
dc1e0b1db4 Merge branch 'topic/of' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-tps65217 2014-09-10 12:02:41 +01:00
Mark Brown
a0c7b164ad regulator: of: Provide simplified DT parsing method
Currently regulator drivers which support DT all repeat very similar code
to supply a list of known regulator identifiers to be matched with DT,
convert that to platform data which is then matched up with the regulators
as they are registered. This is both fiddly to get right and for devices
which can use the standard helpers to provide their operations is the main
source of code in the driver.

Since this code is essentially identical for most drivers we can factor it
out into the core, moving the identifiers in the match table into the
regulator descriptors and also allowing drivers to pass in the name of the
subnode to search. When a driver provides an of_match string for the
regulator the core will attempt to use that to obtain init_data, allowing
the driver to remove all explicit code for DT parsing and simply provide
data instead.

The current code leaks the phandles for the child nodes, this will be
addressed incrementally and makes no practical difference for FDT anyway
as the DT data structures are never freed.

Signed-off-by: Mark Brown <broonie@linaro.org>
2014-09-10 12:00:53 +01:00
Chris Zhong
571a401084 regulator: rk808: Remove pdata from the regulator
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-10 11:50:43 +01:00
Guodong Xu
b8b27a44dd regulator: remove unnecessary of_node_get() to parent
These of_node_get() were added to balance refcount decrements inside of
of_find_node_by_name().
See: commit c92f5dd2c4 ("regulator: Add missing of_node_put()")

However of_find_node_by_name() was then replaced by of_get_child_by_name(),
which doesn't call of_node_put() against its input parameter.

So, need to remove these unnecessary of_node_get() calls.

Signed-off-by: Guodong Xu <guodong.xu@linaro.org>
Reviewed-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-10 11:35:02 +01:00
Mark Brown
c2542d2a86 regulator: tps65217: Remove unused driver_data from of_match table
We don't ever reference the driver_data we supply so remove it.

Signed-off-by: Mark Brown <broonie@linaro.org>
2014-09-09 23:22:19 +01:00
Axel Lin
e0f6429ecb regulator: bcm590xx: Remove unused **info field from struct bcm590xx_reg
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-09-07 16:06:57 +01:00
Axel Lin
192264e0a5 regulator: as3711: Remove unused fields from as3711_regulator_info and as3711_regulator
The max_uV is not used, so remove it from struct as3711_regulator_info.
Current code is using devm_regulator_register(), so we don't need to store *rdev
in struct as3711_regulator for clean up.

Also clean up AS3711_REG macro to remove _vshift, _min_uV and _max_uV arguments.
_vshift is always 0, so remove it.
_min_uV and _max_uV are not required, all required settings are set in
REGULATOR_LINEAR_RANGE macro.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-09-07 16:03:55 +01:00
Axel Lin
5c5e417bc0 regulator: hi6421: Fix misleading comment
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-09-06 14:48:53 +01:00
Mark Brown
81baf9fe02 regulator: tps65217: Remove spurious platform data check
We should always be able to probe a regulator with no platform data. This
will enable readback of current state, though no changes can be made to
the device configuration.

Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-06 12:43:40 +01:00
Mark Brown
dec38b5ce6 regulator: isl9305: Add Intersil ISL9305/H driver
The ISL9305 and ISL9305H are mini-PMICs offering two DCDC regulators and
two LDO regulators. While there are some register differences between them
these do not affect the current Linux driver as the relevant features are
not yet supported.

Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-06 12:43:05 +01:00
Axel Lin
6a52f56339 regulator: da9211: Set of_match_table and export device table
Also move da9211_i2c_id and da9211_dt_ids close to the user for better
readability.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-05 11:34:39 +01:00