Commit Graph

2630 Commits

Author SHA1 Message Date
Colin Ian King
dfb85ba114 regulator: max8660: fix assignment of pdata to data that becomes dead
pdata is assigned to &pdata_of, however, pdata_of becomes dead (when it
goes out of scope) so pdata effectively becomes a dead pointer to the
out of scope object.  This is detected by static analysis:

[drivers/regulator/max8660.c:411]: (error) Dead pointer usage.
  Pointer 'pdata' is dead if it has been assigned '&pdata_of' at line 404.

Move declaration of pdata_of so it is always in scope.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-04-08 12:01:10 +01:00
Bjorn Andersson
6261b06de5 regulator: Defer lookup of supply to regulator_get
Instead of resolving regulator supplies during registration move this to
the time of a consumer retrieving a handle. The benefit is that it's
possible for one driver to register regulators with internal
dependencies out of order.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-04-01 21:19:44 +01:00
Krzysztof Kozlowski
222d0f0434 regulator: max77693: Let core parse DT and drop board files support
Simplify the driver by removing board file support and letting
regulator core to parse DT.

The max77693 regulator driver is used only on Exynos based boards which
are DT-only. Board files for Exynos are not supported.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-03-29 21:11:16 -07:00
Guenter Roeck
a9eaa81307 regulator: Ensure unique regulator debugfs directory names
If multiple regulator devices of the same type exist in a system,
the regulator driver assigns generic names for the regulators it
provides, and debugfs is enabled, the regulator subsystem attempts
to create multiple entries with the same name in the regulator debugfs
directory. This fails for all but the first regulator, resulting in
multiple "Failed to create debugfs directory" log entries.

To avoid the problem, prepend the debugfs directory name for a regulator
with its parent device name if available, but only if no explicit
regulator name was provided.

Cc: Alan Tull <atull@opensource.altera.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-03-27 16:14:18 -07:00
Mark Brown
1401990e8c Merge remote-tracking branches 'regulator/fix/doc' and 'regulator/fix/palmas' into regulator-linus 2015-03-23 11:43:42 -07:00
Axel Lin
14aef2919d regulator: stw481x: Remove unused fields from struct stw481x
The mutex lock is not used at all, remove it.
The *vmmc_regulator is not necessary, use a local variable in
stw481x_vmmc_regulator_probe() instead.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-03-21 01:05:56 +00:00
Keerthy
e999c7289c regulator: palmas: Add has_regen3 check for TPS659038
Palmas driver is used to cater to even TPS659038 but TPS659038 does not have
REGEN3 resource. Adding another field in the driver data to check on that.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-03-17 12:21:15 +00:00
Mark Brown
a26aeb177d Merge branch 'fix/palmas' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-palmas 2015-03-17 12:21:09 +00:00
Keerthy
e03826d504 regulator: palmas: Correct TPS659038 register definition for REGEN2
The register offset for REGEN2_CTRL in different for TPS659038 chip as when
compared with other Palmas family PMICs. In the case of TPS659038 the wrong
offset pointed to PLLEN_CTRL and was causing a hang. Correcting the same.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
2015-03-17 12:19:14 +00:00
Fabian Frederick
cdbf6f0e8e regulator: constify of_device_id array
of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-03-17 12:10:50 +00:00
Mark Brown
8ca8f32666 Merge remote-tracking branches 'regulator/fix/gpio-enable' and 'regulator/fix/tps65910' into regulator-linus 2015-03-16 11:43:24 +00:00
Geert Uytterhoeven
d16da513c9 regulator: tps65910: Add missing #include <linux/of.h>
drivers/regulator/tps65910-regulator.c: In function ‘tps65910_parse_dt_reg_data’:
drivers/regulator/tps65910-regulator.c:1018: error: implicit declaration of function ‘of_get_child_by_name’
drivers/regulator/tps65910-regulator.c:1018: warning: assignment makes pointer from integer without a cast
drivers/regulator/tps65910-regulator.c:1034: error: implicit declaration of function ‘of_node_put’
drivers/regulator/tps65910-regulator.c:1056: error: implicit declaration of function ‘of_property_read_u32’

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-03-16 11:41:16 +00:00
Bjorn Andersson
e39ce48f53 regulator: Rename regulator_set_optimum_mode
Rename the regulator_set_optimum_mode() function regulator_set_load() to
better represent what's going on.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-03-09 18:32:25 +00:00
Doug Anderson
29d62ec5f8 regulator: core: Fix enable GPIO reference counting
Normally _regulator_do_enable() isn't called on an already-enabled
rdev.  That's because the main caller, _regulator_enable() always
calls _regulator_is_enabled() and only calls _regulator_do_enable() if
the rdev was not already enabled.

However, there is one caller of _regulator_do_enable() that doesn't
check: regulator_suspend_finish().  While we might want to make
regulator_suspend_finish() behave more like _regulator_enable(), it's
probably also a good idea to make _regulator_do_enable() robust if it
is called on an already enabled rdev.

At the moment, _regulator_do_enable() is _not_ robust for already
enabled rdevs if we're using an ena_pin.  Each time
_regulator_do_enable() is called for an rdev using an ena_pin the
reference count of the ena_pin is incremented even if the rdev was
already enabled.  This is not as intended because the ena_pin is for
something else: for keeping track of how many active rdevs there are
sharing the same ena_pin.

Here's how the reference counting works here:

* Each time _regulator_enable() is called we increment
  rdev->use_count, so _regulator_enable() calls need to be balanced
  with _regulator_disable() calls.

* There is no explicit reference counting in _regulator_do_enable()
  which is normally just a warapper around rdev->desc->ops->enable()
  with code for supporting delays.  It's not expected that the
  "ops->enable()" call do reference counting.

* Since regulator_ena_gpio_ctrl() does have reference counting
  (handling the sharing of the pin amongst multiple rdevs), we
  shouldn't call it if the current rdev is already enabled.

Note that as part of this we cleanup (remove) the initting of
ena_gpio_state in regulator_register().  In _regulator_do_enable(),
_regulator_do_disable() and _regulator_is_enabled() is is clear that
ena_gpio_state should be the state of whether this particular rdev has
requested the GPIO be enabled.  regulator_register() was initting it
as the actual state of the pin.

Fixes: 967cfb18c0 ("regulator: core: manage enable GPIO list")
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
2015-03-08 19:43:52 +00:00
Javier Martinez Canillas
0548bf4f5a regulator: Only enable disabled regulators on resume
The _regulator_do_enable() call ought to be a no-op when called on an
already-enabled regulator.  However, as an optimization
_regulator_enable() doesn't call _regulator_do_enable() on an already
enabled regulator.  That means we never test the case of calling
_regulator_do_enable() during normal usage and there may be hidden
bugs or warnings.  We have seen warnings issued by the tps65090 driver
and bugs when using the GPIO enable pin.

Let's match the same optimization that _regulator_enable() in
regulator_suspend_finish().  That may speed up suspend/resume and also
avoids exposing hidden bugs.

[Use much clearer commit message from Doug Anderson]

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
2015-03-08 19:40:16 +00:00
Heiko Stuebner
c8b263cc03 regulator: act8865: add input supply handling
The act88600/act8846/act8865 regulators have a number of input supplies
supplying the individual regulators. This may even be recursively like on
most Rockchip boards using the act8846 where REG4 is most of the time
connected to the inl1-supply.

Therefore add the ability to specify the input supplies for the individual inputs.
The input-names are taken from the datasheets of act8600, act8846 and act8865.
On the act8600 some regulators do not have separate input supplies.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-03-07 16:32:28 +00:00
Mark Brown
b5dabc8d3b Merge remote-tracking branches 'regulator/fix/da9210' and 'regulator/fix/rk808' into regulator-linus 2015-03-06 21:10:30 +00:00
Zubair Lutfullah Kakakhel
df3a950e4e regulator: act8865: Add act8600 support
This patch adds act8600 support to the act8865 driver.

VBUS and USB charger supported by this chip can be added later

Tested on MIPS Creator CI20

Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-03-06 19:43:28 +00:00
Fabio Estevam
1b42085af7 regulator: wm8350: Remove unused variable
Commit 8f45acb5f9 ("regulator: wm8350: Pass NULL data with REGULATION_OUT
and UNDER_VOLTAGE events") introduced the following build warning:

drivers/regulator/wm8350-regulator.c: In function 'pmic_uv_handler':
drivers/regulator/wm8350-regulator.c:1154:17: warning: unused variable 'wm8350' [-Wunused-variable]

Remove 'wm8350' as it is unused now.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-03-05 17:56:12 +00:00
Charles Keepax
046db763aa regulator: core: Add devres versions of notifier registration
Add devm_regulator_register_notifier, this adds the resource against the
device for the consumer supply we are registering the notifier for. There
seem to be few use-cases where this wouldn't be the users intention and
this ensures the notifiers will always be removed at the correct time.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-03-05 16:42:14 +00:00
Takashi Iwai
cde72ccfdd regulator: Fix regression due to NULL constraints check
The commit [39f802d6b6: 'regulator: Build sysfs entries with static
attribute groups'] converted the sysfs entry creation to static
attribute groups, but this resulted in a regression due to the NULL
check of rdev->constraints.  At the point where the device is
registered, rdev->constraints isn't set, so the attributes depending
on it are missing.

We may fix it by shuffling the code order in regulator_register(), but
a quicker fix is to just remove this NULL check.  rdev->constraints is
in anyway always set to non-NULL in set_machine_constraints(), thus
the check there is basically superfluous.

Fixes: 39f802d6b6 ('regulator: Build sysfs entries with static attribute groups')
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Reportded-by: Steve Twiss <stwiss.opensource@diasemi.com>
Tested-by: Steve Twiss <stwiss.opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-03-04 12:31:01 +00:00
Richard Fitzgerald
f7293114b4 regulator: arizona-micsupp: Add support for WM8280/WM8281
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-02-26 10:04:43 +00:00
Geert Uytterhoeven
a46a0730f5 regulator: da9211: Pass NULL data with OVER_CURRENT event
According to the documentation, no data is passed with the OVER_CURRENT
regulator notifier event.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: James Ban <james.ban.opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-24 17:19:08 +09:00
Geert Uytterhoeven
767e8aabb5 regulator: da9211: Fix wrong register name in error message
We tried to read the CONFIG_E register, not the CONTROL_E register.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: James Ban <james.ban.opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-24 17:19:05 +09:00
Joe Perches
af78114ec7 regulator: dbx500: Remove use of seq_puts/seq_printf return value
The seq_puts/seq_printf return value, because it's frequently misused,
will eventually be converted to void.

See: commit 1f33c41c03 ("seq_file: Rename seq_overflow() to
     seq_has_overflowed() and make public")

Miscellanea:

o Remove unnecessary dev_err("seq_<foo> overflow\n") messages

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-24 17:16:14 +09:00
Geert Uytterhoeven
8f45acb5f9 regulator: wm8350: Pass NULL data with REGULATION_OUT and UNDER_VOLTAGE events
According to the documentation, no data is passed with the
REGULATION_OUT and UNDER_VOLTAGE regulator notifier events.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-24 17:01:34 +09:00
Bjorn Andersson
2b85c28a5a regulator: qcom-rpm: Implement set_load and enable drms
Pass the requested load directly to the rpm.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-23 23:16:01 +09:00
Bjorn Andersson
8f4490e096 regulator: core: Introduce set_load op
Expose the requested load directly to the regulator implementation for
hardware that does not support the normal enum based set_mode().

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-23 23:16:00 +09:00
Doug Anderson
28249b0c2f regulator: rk808: Set the enable time for LDOs
The LDOs are documented in the rk808 datasheet to have a soft start
time of 400us.  Add that to the driver.  If this time takes longer on
a certain board the device tree should be able to override with
"regulator-enable-ramp-delay".

This fixes some dw_mmc probing problems (together with other patches
posted to the mmc maiing lists) on rk3288.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
2015-02-21 23:32:43 +09:00
Charles Keepax
a7b976ae4b regulator: arizona-micsupp: Drop OF node reference on error path
We were not calling of_node_put if the regulator failed to register this
patch fixes this.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-21 23:30:30 +09:00
Charles Keepax
ec454d7016 regulator: arizona-ldo1: Drop OF node reference on error path
We were not calling of_node_put if the regulator failed to register this
patch fixes this.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-21 23:30:02 +09:00
Linus Torvalds
5c2770079f Changes to existing drivers:
- Repair platform device collision; da9052, wm8994-core
   - Regmap configuration amendments; tps65218
   - Fix runtime PM deadlock; rtsx_usb
   - Remove unused/superfluous code; db8500-prcmu, omap-usb-host
   - Enable watchdog timer; lpc_sch
   - Add start/stop RX URBs helpers; dln2
   - Remove platform device (DT only); max77686, max77802
   - Support suspend and resume; dln2
   - Add Device Tree support; da9063
   - Supply extra error checking; intel_soc_pmic
   - Constify all the things; 88pm860x, hi6421-pmic, intel_soc_pmic,
                              max77686, lm3533, retu, pcf50633,
                              davinci_voicecodec, smsc-ece1099,
                              tps65218, mc13xxx, tps65217, twl-core,
                              twl6040
 New drivers/supported devices:
   - Supply new driver for Richtek RT5033
   - Supply new driver for DA9150 Charger and FuelGauge
   - Supply new driver for Qualcomm Resource Power Manager (RPM)
   - Add support for the ir-clk into sun6i-prcm
   - Add support for FuelGauge into axp20x
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Merge tag 'mfd-for-linus-3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "Changes to existing drivers:
   - fixr platform device collision; da9052, wm8994-core
   - regmap configuration amendments; tps65218
   - fix runtime PM deadlock; rtsx_usb
   - remove unused/superfluous code; db8500-prcmu, omap-usb-host
   - enable watchdog timer; lpc_sch
   - add start/stop RX URBs helpers; dln2
   - remove platform device (DT only); max77686, max77802
   - support suspend and resume; dln2
   - add Device Tree support; da9063
   - extra error checking; intel_soc_pmic
   - const'ify all the things; 88pm860x, hi6421-pmic, intel_soc_pmic,
                               max77686, lm3533, retu, pcf50633,
                               davinci_voicecodec, smsc-ece1099,
                               tps65218, mc13xxx, tps65217, twl-core,
                               twl6040

  New drivers/supported devices:
   - new driver for Richtek RT5033
   - new driver for DA9150 Charger and FuelGauge
   - new driver for Qualcomm Resource Power Manager (RPM)
   - add support for the ir-clk into sun6i-prcm
   - add support for FuelGauge into axp20x"

* tag 'mfd-for-linus-3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (32 commits)
  mfd: intel_soc_pmic: Add missing error check for devm_kzalloc
  mfd: rtsx_usb: Defer autosuspend while card exists
  mfd: devicetree: Add bindings for DA9063
  mfd: da9063: Add device tree support
  regulator: qcom-rpm: Add missing state flag in call to RPM
  mfd: qcom-rpm: Driver for the Qualcomm RPM
  mfd: devicetree: bindings: Add Qualcomm RPM DT binding
  mfd: max77686/802: Remove support for board files
  mfd: omap-usb-host: Remove some unused functions
  mfd: twl6040: Constify struct regmap_config and reg_default array
  mfd: twl-core: Constify struct regmap_config and reg_default array
  mfd: tps65217: Constify struct regmap_config
  mfd: mc13xxx: i2c/spi: Constify struct regmap_config
  mfd: tps65218: Constify struct regmap_config
  mfd: smsc-ece1099: Constify struct regmap_config
  mfd: davinci_voicecodec: Constify struct regmap_config
  mfd: pcf50633: Constify struct regmap_config
  mfd: retu: Constify struct regmap_config
  mfd: lm3533: Constify struct regmap_config
  mfd: max77686: Constify struct regmap_config
  ...
2015-02-18 09:05:48 -08:00
Geert Uytterhoeven
4d9cbff5aa regulator: da9210: Mask all interrupt sources to deassert interrupt line
After boot-up, some events may be set, and cause the da9210 interrupt
line to be asserted. As the da9210 driver doesn't have interrupt support
yet, this causes havoc on systems where the interrupt line is shared
among multiple devices.

This is the case on e.g. r8a7791/koelsch, where the interrupt line is
shared with a da9063 regulator, and the following events are set:

    EVENT_A = 0x00000011 (GPI0 | GPI4)
    EVENT_B = 0x00000002 (NPWRGOOD)

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-17 23:04:15 +09:00
Mark Brown
dd7c2e720a Merge remote-tracking branches 'regulator/topic/rk808', 'regulator/topic/rpm', 'regulator/topic/rt5033' and 'regulator/topic/tps65023' into regulator-next 2015-02-08 11:16:30 +08:00
Mark Brown
ffe167b0f2 Merge remote-tracking branches 'regulator/topic/max8649', 'regulator/topic/mode', 'regulator/topic/mt6397', 'regulator/topic/pfuze100' and 'regulator/topic/qcom-rpm' into regulator-next 2015-02-08 11:16:27 +08:00
Mark Brown
f3ba729900 Merge remote-tracking branches 'regulator/topic/isl9305', 'regulator/topic/lp872x', 'regulator/topic/max14577', 'regulator/topic/max7686' and 'regulator/topic/max77843' into regulator-next 2015-02-08 11:16:24 +08:00
Mark Brown
30c5c53042 Merge remote-tracking branches 'regulator/topic/axp20x', 'regulator/topic/da9211' and 'regulator/topic/fan53555' into regulator-next 2015-02-08 11:16:23 +08:00
Mark Brown
fca8e13f50 Merge remote-tracking branch 'regulator/topic/dt-cb' into regulator-next 2015-02-08 11:16:22 +08:00
Mark Brown
a9877b606c Merge remote-tracking branch 'regulator/topic/core' into regulator-next 2015-02-08 11:16:21 +08:00
Mark Brown
36818b821b Merge remote-tracking branch 'regulator/fix/qcom-rpm' into regulator-linus 2015-02-08 11:16:18 +08:00
Jaewon Kim
9dfffb7a3d regulator: max77843: Add max77843 regulator driver
This patch adds new regulator driver to support max77843
MFD(Multi Function Device) chip`s regulators.
The Max77843 has two voltage regulators for USB safeout.

Signed-off-by: Jaewon Kim <jaewon02.kim@samsung.com>
Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-05 17:33:39 +00:00
Takashi Iwai
39f802d6b6 regulator: Build sysfs entries with static attribute groups
Instead of calling device_create_file() manually after the device
registration, put all in attribute groups and filter the unwanted ones
via is_visible callback.  This not only simplifies the code but also
avoids the possible race between the device registration and sysfs
registration.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-02 20:01:51 +00:00
Bjorn Andersson
00cea31f0f regulator: qcom-rpm: Make it possible to specify supply
Make it possible to specify the supply of a regulator, through the
vin-supply property in dt.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-01-30 13:39:56 +01:00
Bjorn Andersson
8460ef3887 regulator: core: Consolidate drms update handling
Refactor drms_uA_update() slightly to allow regulator_set_optimum_mode()
to utilize the same logic instead of duplicating it.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-01-28 19:52:15 +00:00
Dan Carpenter
a412ec2795 regulator: qcom-rpm: signedness bug in probe()
"force_mode" is a u32 so it is never "< 0", but because of type
promotion then comparing "== -1" will do what we want.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-01-28 19:43:43 +00:00
James Ban
8c7dd8bce0 regulator: da9211: Add gpio control for enable/disable of buck
This is a patch for adding gpio control about enable/disable of buck.

Signed-off-by: James Ban <james.ban.opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-01-28 17:38:14 +00:00
Axel Lin
c6515d2f00 regulator: qcom_rpm: Don't update vreg->uV/mV if rpm_reg_write fails
Ensure get_voltage return correct voltage if set_voltage fails.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-01-26 19:11:35 +00:00
Axel Lin
8538c4075e regulator: lp872x: Remove **regulators from struct lp872x
Current code is using devm_regulator_register(), so we don't need to store *rdev
in struct lp872x for clean up.
Also clean up lp872x_probe() a bit to remove unnecessary goto and num_regulators
variable.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-01-26 19:10:55 +00:00
Bjorn Andersson
803926825f regulator: qcom-rpm: Add missing state flag in call to RPM
This adds the missing state parameter to the call down to the RPM. This
is currently hard coded to the active state, as that's all we're
supporting at this moment.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22 16:04:02 +00:00
Mark Brown
113620bb89 Merge remote-tracking branch 'regulator/fix/s2mps11' into regulator-linus 2015-01-16 12:05:35 +00:00
Mark Brown
d56133793a Merge remote-tracking branch 'regulator/fix/core' into regulator-linus 2015-01-16 12:05:35 +00:00
James Ban
076c3b8e03 regulator: da9211: fix unmatched of_node
This is a patch for fixing unmatched of_node.

Signed-off-by: James Ban <james.ban.opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-01-16 11:47:59 +00:00
Krzysztof Kozlowski
f47531b1aa regulator: Update documentation after renaming function argument
Update documentation for regulator_register() function after renaming
its argument.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-01-14 19:09:56 +00:00
Mark Brown
09d3f6f161 Merge branch 'topic/core' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-dt-cb
Conflicts:
	drivers/regulator/core.c
2015-01-09 18:03:55 +00:00
Chen-Yu Tsai
765e802325 regulator: axp20x: Migrate to regulator core's simplified DT parsing code
A common simplified DT parsing code for regulators was introduced in
commit a0c7b164ad ("regulator: of: Provide simplified DT parsing
method"). This is very similar to our own code, so get rid of ours
and use the common code.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-01-09 17:12:58 +00:00
Chen-Yu Tsai
880fe82dc5 regulator: axp20x: Fill regulators_node and of_match descriptor fields
This patch fills the DT related fields in the regulator descriptors,
which can then be used by the regulator core's simplified DT code.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-01-09 17:12:58 +00:00
Robin Gong
e5a7a72cd5 regulator: pfuze100-regulator: add pfuze3000 support
Add pfuze3000 chip support.

Signed-off-by: Robin Gong <b38343@freescale.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-01-09 12:22:18 +00:00
Krzysztof Kozlowski
bfa21a0dfe regulator: Allow parsing custom properties when using simplified DT parsing
When drivers use simplified DT parsing method (they provide
'regulator_desc.of_match') they still may want to parse custom
properties for some of the regulators. For example some of the
regulators support GPIO enable control.

Add a driver-supplied callback for such case. This way the regulator
core parses common bindings offloading a lot of code from drivers and
still custom properties may be used.

The callback, called for each parsed regulator, may modify the
'regulator_config' initially passed to regulator_register().

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-01-08 20:15:45 +00:00
Krzysztof Kozlowski
3307e9025d regulator: max77686: Add GPIO control
Add enable control over GPIO for regulators supporting this: LDO20,
LDO21, LDO22, buck8 and buck9.

This is needed for proper (and full) configuration of the Maxim 77686
PMIC without creating redundant 'regulator-fixed' entries.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-01-08 20:15:45 +00:00
Krzysztof Kozlowski
1b3de22338 regulator: Copy config passed during registration
Copy the 'regulator_config' structure passed to regulator_register()
function so the driver could safely modify it after parsing init data.

The driver may want to change the config as a result of specific init
data parsed by regulator core (e.g. when core handled parsing device
tree).

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-01-08 20:15:44 +00:00
Jonghwa Lee
ad26aa6c60 regulator: s2mps11: Fix wrong calculation of register offset
This patch adds missing registers('BUCK7_SW' & 'LDO29_CTRL'). Since BUCK7 has
1 more register (BUCK7_SW) than others, register offset should
be added one more for which has bigger address than BUCK7 registers.

Fixes: 76b9840b24ae04(regulator: s2mps11: Add support S2MPS13 regulator device)
Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: <stable@vger.kernel.org>
2015-01-08 18:16:58 +00:00
Ashay Jaiswal
83b0302d34 regulator: core: fix race condition in regulator_put()
The regulator framework maintains a list of consumer regulators
for a regulator device and protects it from concurrent access using
the regulator device's mutex lock.

In the case of regulator_put() the consumer is removed and regulator
device's parameters are updated without holding the regulator device's
mutex. This would lead to a race condition between the regulator_put()
and any function which traverses the consumer list or modifies regulator
device's parameters.
Fix this race condition by holding the regulator device's mutex in case
of regulator_put.

Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
2015-01-08 18:15:35 +00:00
Krzysztof Kozlowski
4604a061e6 regulator: tps65023: Constify struct regmap_config and regulator_ops
The regmap_config struct may be const because it is not modified by
the driver and regmap_init() accepts pointer to const. Make struct
regulator_ops const as well.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-01-05 20:11:06 +00:00
Krzysztof Kozlowski
035f3324b3 regulator: max8649: Constify struct regmap_config and regulator_ops
The regmap_config struct may be const because it is not modified by the
driver and regmap_init() accepts pointer to const. Make struct
regulator_ops const as well.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-01-05 20:10:13 +00:00
Krzysztof Kozlowski
121b567d8f regulator: fan53555: Constify struct regmap_config and slew_rates array
The regmap_config struct may be const because it is not modified by the
driver and regmap_init() accepts pointer to const. Make const also
slew_rates array.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-01-05 20:09:40 +00:00
Linus Torvalds
034496f40d regulator: Fix for v3.19
One fix here, a fix for the voltage mapping on one of the s2mps11
 regulators which broke systems using it including apparently the Gear 2
 smartwatches.
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Merge tag 'regulator-v3.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull one regulator fix from Mark Brown:
 "One fix here, a fix for the voltage mapping on one of the s2mps11
  regulators which broke systems using it including apparently the
  Gear 2 smartwatches"

* tag 'regulator-v3.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: s2mps11: Fix dw_mmc failure on Gear 2
2014-12-29 13:24:38 -08:00
Aniroop Mathur
39138818a4 regulator: core: Fix format specifier warning
Signed-off-by: Aniroop Mathur <a.mathur@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-12-29 17:09:32 +00:00
Aniroop Mathur
72dca06f62 regulator: core: Avoid negative regulator no & initialize it to -1
This patch initializes regulator_no to -1 to avoid extra subtraction
operation performed every time we register a regulator and avoid negative
regulator no in its name.

Signed-off-by: Aniroop Mathur <a.mathur@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-12-29 16:08:46 +00:00
Beomho Seo
53aebb7f19 regulator: rt5033-regulator: Use regulator_nodes/of_match in the descriptor
This patch is add regulator_nodes/of_match in the regulator descriptor
for using information from DT instead of sppecific codes.

Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-12-24 12:54:56 +00:00
Flora Fu
0425e2420c regulator: mt6397: Add support for MT6397 regulator
Add MT6397 regulator driver.

Signed-off-by: Flora Fu <flora.fu@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-12-24 12:41:05 +00:00
Arnaud Ebalard
6fd753572c regulator: isl9305: deprecate use of isl in compatible string for isil
"isil" and "isl" prefixes are used at various locations inside the kernel
to reference Intersil corporation. This patch is part of a series fixing
those locations were "isl" is used in compatible strings to use the now
expected "isil" prefix instead (NASDAQ symbol for Intersil and most used
version). The old compatible string is kept for backward compatibility.

Signed-off-by: Arnaud Ebalard <arno@natisbad.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-12-22 17:51:11 +00:00
Beomho Seo
e951ceef65 regulator: max14577: Use regulator_nodes/of_match in the descriptor
This patch is add regulator_nodes/ofmatch in the regulator descriptor
for using information from DT instead of specific codes.
That will be used regulation_of_get_init_data function for get regulator
property on device tree. Using that make driver simpler.

Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-12-22 12:11:43 +00:00
Linus Torvalds
e6b5be2be4 Driver core patches for 3.19-rc1
Here's the set of driver core patches for 3.19-rc1.
 
 They are dominated by the removal of the .owner field in platform
 drivers.  They touch a lot of files, but they are "simple" changes, just
 removing a line in a structure.
 
 Other than that, a few minor driver core and debugfs changes.  There are
 some ath9k patches coming in through this tree that have been acked by
 the wireless maintainers as they relied on the debugfs changes.
 
 Everything has been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core update from Greg KH:
 "Here's the set of driver core patches for 3.19-rc1.

  They are dominated by the removal of the .owner field in platform
  drivers.  They touch a lot of files, but they are "simple" changes,
  just removing a line in a structure.

  Other than that, a few minor driver core and debugfs changes.  There
  are some ath9k patches coming in through this tree that have been
  acked by the wireless maintainers as they relied on the debugfs
  changes.

  Everything has been in linux-next for a while"

* tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits)
  Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries"
  fs: debugfs: add forward declaration for struct device type
  firmware class: Deletion of an unnecessary check before the function call "vunmap"
  firmware loader: fix hung task warning dump
  devcoredump: provide a one-way disable function
  device: Add dev_<level>_once variants
  ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries
  ath: use seq_file api for ath9k debugfs files
  debugfs: add helper function to create device related seq_file
  drivers/base: cacheinfo: remove noisy error boot message
  Revert "core: platform: add warning if driver has no owner"
  drivers: base: support cpu cache information interface to userspace via sysfs
  drivers: base: add cpu_device_create to support per-cpu devices
  topology: replace custom attribute macros with standard DEVICE_ATTR*
  cpumask: factor out show_cpumap into separate helper function
  driver core: Fix unbalanced device reference in drivers_probe
  driver core: fix race with userland in device_add()
  sysfs/kernfs: make read requests on pre-alloc files use the buffer.
  sysfs/kernfs: allow attributes to request write buffer be pre-allocated.
  fs: sysfs: return EGBIG on write if offset is larger than file size
  ...
2014-12-14 16:10:09 -08:00
Krzysztof Kozlowski
1222d8fe57 regulator: s2mps11: Fix dw_mmc failure on Gear 2
Invalid buck4 configuration for linear mapping of voltage in S2MPS14
regulators caused boot failure on Gear 2 (dw_mmc-exynos):

[    3.569137] EXT4-fs (mmcblk0p15): mounted filesystem with ordered data mode. Opts: (null)
[    3.571716] VFS: Mounted root (ext4 filesystem) readonly on device 179:15.
[    3.629842] mmcblk0: error -110 sending status command, retrying
[    3.630244] mmcblk0: error -110 sending status command, retrying
[    3.636292] mmcblk0: error -110 sending status command, aborting

Buck4 voltage regulator has different minimal voltage value than other
bucks. Commit merging multiple regulator description macros caused to
use linear_min_sel from buck[1235] regulators as value for buck4. This
lead to lower voltage of buck4 than required.

Output of the buck4 is used internally as power source for
LDO{3,4,7,11,19,20,21,23}. On Gear 2 board LDO11 is used as MMC
regulator (V_EMMC_1.8V).

Fixes: 5a867cf288 ("regulator: s2mps11: Optimize the regulator description macro")
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: <stable@vger.kernel.org>
2014-12-12 13:04:39 +00:00
Wei Yongjun
5cb2f03c67 regulator: rk808: Fix sparse non static symbol warnings
Fixes the following sparse warnings:

drivers/regulator/rk808-regulator.c💯5: warning:
 symbol 'rk808_set_suspend_voltage' was not declared. Should it be static?
drivers/regulator/rk808-regulator.c:115:5: warning:
 symbol 'rk808_set_suspend_enable' was not declared. Should it be static?
drivers/regulator/rk808-regulator.c:126:5: warning:
 symbol 'rk808_set_suspend_disable' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-12-09 16:17:57 +00:00
Linus Torvalds
f94784bdb1 regulator: Updates for v3.19
The main thing this time around is support for suspend mode
 configuration from DT which will enable some very useful power savings
 on systems where we can't rely on the bootloader configuration.  We
 still don't really support dynamic configuration of this at runtime,
 that may come later if there is any demand.
 
  - Support for specifying the target regulation mode and voltage during
    system suspend via DT, enabling power savings in that mode.
  - Reduce the default verbosity of the logging on boot, improving boot
    times especially for systems with very large numbers of regulators.
  - Lots of cleanups and fixes for Maxim PMIC drivers.
  - New driver for Richtek RT5033.
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Merge tag 'regulator-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "The main thing this time around is support for suspend mode
  configuration from DT which will enable some very useful power savings
  on systems where we can't rely on the bootloader configuration.  We
  still don't really support dynamic configuration of this at runtime,
  that may come later if there is any demand.

  Summary:
   - Support for specifying the target regulation mode and voltage
     during system suspend via DT, enabling power savings in that mode.
   - Reduce the default verbosity of the logging on boot, improving boot
     times especially for systems with very large numbers of regulators.
   - Lots of cleanups and fixes for Maxim PMIC drivers.
   - New driver for Richtek RT5033"

* tag 'regulator-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (62 commits)
  regulator: core: Fix regualtor_ena_gpio_free not to access pin after freeing
  regulator: sky81452: Modify Device Tree structure
  regulator: sky81452: Modify Device Tree structure
  dt-bindings: Update documentation for "system-power-controller" and fix misspellings
  of: Rename "poweroff-source" property to "system-power-controller"
  regulator: max77686: Remove support for board files
  regulator: max77802: Remove support for board files
  regulator: max77802: Fill regulator modes translation callback
  regulator: max77802: Document binding for regulator operating modes
  regulator: of: Add support for parsing initial and suspend modes
  regulator: of: Pass the regulator description in the match table
  regulator: of: Add regulator desc param to of_get_regulator_init_data()
  regulator: Add mode mapping function to struct regulator_desc
  regulator: Document binding for initial and suspend modes
  regulator: core: Add PRE_DISABLE notification
  regulator: gpio: fix parsing of gpio list
  regulator: rpm: add support for RPM-controller SMB208
  regulator: da9063: Do not transform local IRQ to virtual
  regulator: sky81452: Modify dependent Kconfig symbol
  regulator: rt5033: Add RT5033 Regulator device driver
  ...
2014-12-08 20:42:41 -08:00
Linus Torvalds
3a7dbed7f2 Hi Linus,
Changes to the core:
  - Honour PLATFORM_DEVID_NONE and PLATFORM_DEVID_AUTO dev IDs
 
 Changes to existing drivers:
  - IRQ additions/fixes; axp20x, da9063-core
  - Code simplification; i2c-dln2
  - Regmap additions/fixes; max77693
  - Error checking/handling improvements; dln2, db8500-prcmu
  - Bug fixes; dln2, wm8350-core
  - DT support/documentation; max77693, max77686, tps65217, twl4030-power,
                              gpio-tc3589x
  - Decouple syscon interface from platform devices
  - Use MFD hotplug registration; rtsx_usb, viperboard, hid-sensor-hub
  - Regulator fixups; sec-core
  - Power Management additions/fixes; rts5227, tc6393xb
  - Remove relic/redundant code; ab8500-sysctrl, lpc_sch, max77693-private
  - Clean-up/coding style changes; tps65090
  - Clk additions/fixes; tc6393xb, tc6387xb, t7l66xb
  - Add USB-SPI support; dln2
  - Trivial changes; max14577, arizona-spi, lpc_sch, wm8997-tables, wm5102-tables
                     wm5110-tables, axp20x, atmel-hlcdc, rtsx_pci
 
 New drivers/supported devices:
  - axp288 PMIC support added to axp20x
  - s2mps13 support added to sec-core
  - New support for Diolan DLN-2
  - New support for atmel-hlcdc
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Merge tag 'mfd-for-linus-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "Changes to the core:
   - Honour PLATFORM_DEVID_NONE and PLATFORM_DEVID_AUTO dev IDs

  Changes to existing drivers:
   - IRQ additions/fixes; axp20x, da9063-core
   - Code simplification; i2c-dln2
   - Regmap additions/fixes; max77693
   - Error checking/handling improvements; dln2, db8500-prcmu
   - Bug fixes; dln2, wm8350-core
   - DT support/documentation; max77693, max77686, tps65217, twl4030-power,
                               gpio-tc3589x
   - Decouple syscon interface from platform devices
   - Use MFD hotplug registration; rtsx_usb, viperboard, hid-sensor-hub
   - Regulator fixups; sec-core
   - Power Management additions/fixes; rts5227, tc6393xb
   - Remove relic/redundant code; ab8500-sysctrl, lpc_sch, max77693-private
   - Clean-up/coding style changes; tps65090
   - Clk additions/fixes; tc6393xb, tc6387xb, t7l66xb
   - Add USB-SPI support; dln2
   - Trivial changes; max14577, arizona-spi, lpc_sch, wm8997-tables, wm5102-tables
                      wm5110-tables, axp20x, atmel-hlcdc, rtsx_pci

  New drivers/supported devices:
   - axp288 PMIC support added to axp20x
   - s2mps13 support added to sec-core
   - New support for Diolan DLN-2
   - New support for atmel-hlcdc"

* tag 'mfd-for-linus-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (55 commits)
  mfd: rtsx: Add func to split u32 into register
  mfd: atmel-hlcdc: Add Kconfig option description and name
  mfd: da9063: Get irq base dynamically before registering device
  mfd: max14577: Fix obvious typo in company name in copyright
  mfd: axp20x: Constify axp20x_acpi_match and rid unused warning
  mfd: t7l66xb: prepare/unprepare clocks
  mfd: tc6387xb: prepare/unprepare clocks
  mfd: dln2: add support for USB-SPI module
  mfd: wm5110: Add missing registers for AIF2 channels 3-6
  mfd: tc3589x: get rid of static base
  mfd: arizona: Document HP_CTRL_1L and HP_CTRL_1R registers
  mfd: wm8997: Mark INTERRUPT_STATUS_2_MASK as readable
  mfd: tc6393xb: Prepare/unprepare clocks
  mfd: tps65090: Fix bonkers indenting strategy
  mfd: tc6393xb: Fail ohci suspend if full state restore is required
  mfd: lpc_sch: Don't call mfd_remove_devices()
  mfd: wm8350-core: Fix probable mask then right shift defect
  mfd: ab8500-sysctrl: Drop ab8500_restart
  mfd: db8500-prcmu: Provide sane error path values
  mfd: db8500-prcmu: Check return of devm_ioremap for error
  ...
2014-12-08 20:02:54 -08:00
Mark Brown
176488fbc1 Merge remote-tracking branches 'regulator/topic/sky81452' and 'regulator/topic/stub' into regulator-next 2014-12-05 11:14:43 +00:00
Mark Brown
1b56ffda75 Merge remote-tracking branches 'regulator/topic/rn5t618', 'regulator/topic/rpm', 'regulator/topic/rt5033', 'regulator/topic/s2mpa01' and 'regulator/topic/s2mps11' into regulator-next 2014-12-05 11:14:40 +00:00
Mark Brown
92d07a8ff6 Merge remote-tracking branches 'regulator/topic/max77686', 'regulator/topic/max77693', 'regulator/topic/max77802', 'regulator/topic/power-off' and 'regulator/topic/rk808' into regulator-next 2014-12-05 11:14:37 +00:00
Mark Brown
af012d6278 Merge remote-tracking branches 'regulator/topic/anatop', 'regulator/topic/disable', 'regulator/topic/dummy' and 'regulator/topic/gpio' into regulator-next 2014-12-05 11:14:35 +00:00
Mark Brown
15db0c8d79 Merge remote-tracking branch 'regulator/topic/core' into regulator-next 2014-12-05 11:14:34 +00:00
Mark Brown
70c97e3b11 Merge remote-tracking branch 'regulator/fix/da9063' into regulator-linus 2014-12-05 11:14:33 +00:00
Mark Brown
f291c74a32 Merge branch 'topic/suspend' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-sky81452
Conflicts:
	drivers/regulator/sky81452-regulator.c
2014-12-05 11:06:18 +00:00
Seung-Woo Kim
60a2362f76 regulator: core: Fix regualtor_ena_gpio_free not to access pin after freeing
After freeing pin from regulator_ena_gpio_free, loop can access
the pin. So this patch fixes not to access pin after freeing.

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-12-04 22:45:36 +00:00
Gyungoh Yoo
586b1514e6 regulator: sky81452: Modify Device Tree structure
Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-12-02 12:22:39 +00:00
Romain Perier
8f73110f6b of: Rename "poweroff-source" property to "system-power-controller"
It reverts commit a4b4e0461e ("of: Add standard property for poweroff capability").
As discussed on the mailing list, it makes more sense to rename back to the
old established property name, without the vendor prefix. Problem being that
the word "source" usually tends to be used for inputs and that is out of control
of the OS. The poweroff capability is an output which simply turns the
system-power off. Also, this property might be used by drivers which power-off
the system and power back on subsequent RTC alarms. This seems to suggest to
remove "poweroff" from the property name and to choose "system-power-controller"
as the more generic name. This patchs adds the required renaming changes and
defines an helper function which checks if this property is set.

Signed-off-by: Romain Perier <romain.perier@gmail.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-12-01 19:33:44 +00:00
Krzysztof Kozlowski
0480395264 regulator: max77686: Remove support for board files
The driver is used only on Exynos based boards with DTS support.
Simplify the driver and remove dead (unused) entries in platform_data
structure.

Convert the driver to DTS-only version. Parse all regulators at once,
not one-by-one. Remove dependency on data provided by max77686 MFD
driver. Use new DT style parsing method for regulators init data.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-26 20:39:06 +00:00
Mark Brown
75ff942044 Linux 3.18-rc4
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Merge tag 'v3.18-rc4' into regulator-max77686

Linux 3.18-rc4
2014-11-26 20:39:02 +00:00
Krzysztof Kozlowski
ff633bea47 regulator: max77802: Remove support for board files
The driver is used only on Exynos based boards with DTS support.
Simplify the driver and remove dead (unused) entries in platform_data
structure.

Convert the driver to DTS-only version. Parse all regulators at once,
not one-by-one. Remove dependency on data provided by max77686 MFD
driver. Use new DT style parsing method for regulators init data.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-26 20:38:32 +00:00
Mark Brown
cf2394f70c Linux 3.18-rc4
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Merge tag 'v3.18-rc4' into regulator-max77802

Linux 3.18-rc4
2014-11-26 20:37:57 +00:00
Javier Martinez Canillas
45fc84c668 regulator: max77802: Fill regulator modes translation callback
The max77802 PMIC regulators output can be configured in one of two
modes: Output ON (normal) and Output ON in Low Power Mode. Some of
the 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.

Use the max77802_map_mode() function to translate the device specific
modes to the standard operating modes as used by the regulator core.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-26 19:42:47 +00:00
Mark Brown
f9fbc21d03 Merge branch 'topic/suspend' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-max77802 2014-11-26 19:42:41 +00:00
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
Chanwoo Choi
76b9840b24 regulator: s2mps11: Add support S2MPS13 regulator device
This patch adds S2MPS13 regulator device to existing S2MPS11 device driver.
The S2MPS13 has just different number of regulators from S2MPS14.
The S2MPS13 regulator device includes LDO[1-40] and BUCK[1-10].

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Sangbeom Kim <sbkim73@samsung.com>
Acked-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-11-25 15:55:06 +00:00
Richard Fitzgerald
a1c8a5512b regulator: core: Add PRE_DISABLE notification
Add a PRE_DISABLE notification so that consumers can use a
notifier to run any steps required to prepare for the
regulator being switched off. Since the regulator disable
can fail an abort notification is also added.

Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-24 15:26:02 +00:00
Richard Fitzgerald
9f946099fe regulator: gpio: fix parsing of gpio list
The list of gpios is defined as optional but the code was
failing to properly handle the case of no gpios, and also
failing to check for errors reading the entry from the
devicetree.

This patch fixes the handling of optional gpios - this is a
useful feature enabling the gpio-regulator to be used as a
dummy variable voltage regulator without having to assign any
real GPIO lines.

Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-21 19:25:35 +00:00
Josh Cartwright
0f5bb5b5de regulator: rpm: add support for RPM-controller SMB208
The IPQ8064 reference boards make use of SMB208 regulators which are
controlled by RPM.  Implement support for these regulators in the RPM
regulator driver.

Signed-off-by: Josh Cartwright <joshc@codeaurora.org>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-21 19:20:58 +00:00
Dmitry Lavnikevich
8ad365c94f regulator: da9063: Do not transform local IRQ to virtual
Call platform_get_irq_byname() already returns VIRQ instead of local
IRQ. Passing this value to regmap_irq_get_virq() causes error which
results in IRQ registration failure. This patch fixes such behaviour.

Signed-off-by: Dmitry Lavnikevich <d.lavnikevich@sam-solutions.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-21 18:14:08 +00:00
Gyungoh Yoo
70b5b27c4f regulator: sky81452: Modify dependent Kconfig symbol
Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-17 14:19:24 +00:00
Beomho Seo
b1917578fd regulator: rt5033: Add RT5033 Regulator device driver
This patch add device driver of Richtek RT5033 PMIC.
The driver support multiple regulator like LDO and synchronous Buck.
The integrated synchronous buck converter is designed to provide 0.6 A
application with high efficiency. Two LDOs are integrated. One safe LDO is
for 60mA and the other one LDO is for 150 mA.

Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-14 17:55:07 +00:00
Markus Pargmann
679c038f54 regulator: tps65090: Fix gpio initialization
The config is used for multiple regulators within a for loop. The config
field is not cleared before it is used for the next item. To avoid any
issues this patch adds a proper initialization for the config->ena_gpio
field in case no gpio is available.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-07 11:30:25 +00:00
Markus Pargmann
2454f8d15c regulator: gpio: Use gpio_is_valid
Use gpio_is_valid instead of an explicit comparison with 0.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-07 11:30:25 +00:00
Markus Pargmann
5315fe2f8d regulator: fixed: Use gpio_is_valid
Use gpio_is_valid instead of an explicit comparison with 0.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-07 11:30:25 +00:00
Markus Pargmann
1de3821ace regulator: Set ena_gpio_initialized in regulator drivers
This patch sets ena_gpio_initialized for all drivers which set a
ena_gpio from parsed DT properties. Drivers using pdata may get zero
initialized pdata and therefore copy a 0 into the regulator_config
ena_gpio field.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-07 11:30:25 +00:00
Mark Brown
2a7509b187 Merge remote-tracking branches 'regulator/fix/max1586', 'regulator/fix/max77686', 'regulator/fix/max77693', 'regulator/fix/max77802', 'regulator/fix/max8860' and 'regulator/fix/s2mpa01' into regulator-linus 2014-11-05 14:59:25 +00:00
Mark Brown
df3307126b Merge remote-tracking branch 'regulator/fix/core' into regulator-linus 2014-11-05 14:59:24 +00:00
Krzysztof Kozlowski
a26ed45c91 regulator: max77802: Don't ignore return value of current opmode
The return value of regmap_read() of current opmode for regulator was
silently ignored and whatever happened to be in 'val' variable was used
as new opmode. This could lead to using bogus opmode.

Don't ignore what regmap_read() returns. If it fails just fall back to
normal opmode.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-04 20:47:50 +00:00
Krzysztof Kozlowski
4524df83c7 regulator: max77686: Initialize opmode explicitly to normal mode
Minor nit: Initialize the opmode for each regulator to normal mode in a
readable explicit way.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Suggested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-04 20:41:51 +00:00
Krzysztof Kozlowski
eca29da9a2 regulator: max77686: Consistently index opmode array by rdev id
Mixed indexes were used for array of opmodes in max77686_data structure:
id of regulator and index of regulator_desc array.

These indexes are exactly the same but the mixture may confuse. Use
consistently the id of regulator.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-04 20:41:28 +00:00
Greg Kroah-Hartman
a8a93c6f99 Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next
Remove all .owner fields from platform drivers
2014-11-03 19:53:56 -08:00
Javier Martinez Canillas
4d7078e694 regulator: max77802: Use unsigned int for modes in max77802_map_mode()
All function dealing with operating modes use unsigned int for modes
so change max77802_map_mode() function signature for consistency.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-03 16:08:21 +00:00
Javier Martinez Canillas
282179105d regulator: s2mpa01: zero-initialize regulator match table array
The struct of_regulator_match rmatch[] is declared as a non-static local
variable so the structure members are not auto-initialized.

Initialize the array at declaration time to avoid the structure members
values to be indeterminate and have sane defaults instead.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-03 15:56:16 +00:00
Javier Martinez Canillas
c9889803e3 regulator: max8660: zero-initialize regulator match table array
The struct of_regulator_match rmatch[] is declared as a non-static local
variable so the structure members are not auto-initialized.

Initialize the array at declaration time to avoid the structure members
values to be indeterminate and have sane defaults instead.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-03 15:55:53 +00:00
Javier Martinez Canillas
ecea7484d2 regulator: max77802: zero-initialize regulator match table
The struct of_regulator_match is declared as a non-static local variable
so the structure members are not auto-initialized.

Initialize the struct at declaration time to avoid the structure members
values to be indeterminate and have sane defaults instead.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-03 15:55:27 +00:00
Javier Martinez Canillas
050cf85c3f regulator: max77686: zero-initialize regulator match table
The struct of_regulator_match is declared as a non-static local variable
so the structure members are not auto-initialized.

Initialize the struct at declaration time to avoid the structure members
values to be indeterminate and have sane defaults instead.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-03 15:46:46 +00:00
Javier Martinez Canillas
d83aef13ad regulator: max1586: zero-initialize regulator match table array
The struct of_regulator_match rmatch[] is declared as a non-static local
variable so the structure members are not auto-initialized.

Initialize the array at declaration time to avoid the structure members
values to be indeterminate and have sane defaults instead.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-03 15:36:50 +00:00
Krzysztof Kozlowski
ca0c37a0b4 regulator: max77693: Fix use of uninitialized regulator config
Driver allocated on stack struct regulator_config but didn't initialize
it fully. Few fields (driver_data, ena_gpio) were left untouched. This
lead to using random ena_gpio values as GPIOs for max77693 regulators.

On occasion these values could match real GPIO numbers leading to
interfering with other drivers and to unsuccessful enable/disable of
regulator.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Fixes: 80b022e29b ("regulator: max77693: Add max77693 regualtor driver.")
Cc: <stable@vger.kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-03 14:36:02 +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
Mark Brown
194dbaefa0 regulator: Lower priority of constraint logging
Some systems have very large numbers of regulators so the constraint
logging done at startup can end up being a very big part of the boot
output which is both verbose and slows things down if the console is
a serial console. Lower to dev_dbg() instead, we may want to provide
a boot parameter to raise this in future but for now people can edit
the source.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
2014-10-31 19:35:58 +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
Krzysztof Kozlowski
78ce612860 regulator: max77686: Add suspend disable for some LDOs
Some LDOs of Maxim 77686 PMIC support disabling during system suspend
(LDO{2,6,7,8,10,11,12,14,15,16}). This was already implemented as part
of set_suspend_mode function. In that case the mode was one of:
 - disable,
 - normal mode,
 - low power mode.
However there are no bindings for setting the mode during suspend.

Add suspend disable for LDO regulators supporting this. Re-use existing
max77686_buck_set_suspend_disable() function. This helps reducing
energy consumption during system sleep.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-31 12:42:52 +00:00
Krzysztof Kozlowski
a1dd913f4e regulator: max77802: Remove suspend_enable
The Maxim 77802 PMIC regulators do not have special enable configuration
for suspend. The driver instead enabled them manually which is not a
best way to deal with suspend.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-31 12:34:16 +00:00
Mark Brown
7de79a1d49 regulator: of: Lower the severity of the error with no container
Description of regulators should generally be optional so if there is no
DT node for the regulators container then we shouldn't print an error
message. Lower the severity of the message to debug level (it might help
someone work out what went wrong) and while we're at it say what we were
looking for.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-29 12:36:21 +00:00
Krzysztof Kozlowski
68c5d1868b regulator: max77686: Store opmode non-shifted
Introduce simple helper for calculating the shift for OPMODE field in
registers. This allows storing the current value of opmode in
non-shifted form and simplifies a little set_suspend_disable and enable
functions. Additionally this will allow adding support LDOs to the
existing set_suspend_disable function.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Suggested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-28 22:31:59 +00:00
Krzysztof Kozlowski
7636f19c26 regulator: max77686: Replace hard-coded opmode values with defines
Add defines for regulator operating modes which should be more readable,
especially if one does not have Maxim 77686 datasheet.

The patch does not introduce any functional change.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Suggested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-28 22:31:54 +00:00
Krzysztof Kozlowski
73dbdf8ff5 regulator: max77686: Make regulator_desc array const
The regulator_register() expects array of 'regulator_desc' to be const.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-28 00:38:34 +00:00
Krzysztof Kozlowski
4b8e43f255 regulator: s2mpa01: Make regulator_desc array const
The regulator_register() expects array of 'regulator_desc' to be const.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-28 00:03:13 +00:00
Krzysztof Kozlowski
6c4159a57a regulator: max77802: Make regulator_desc array const
The regulator_register() expects array of 'regulator_desc' to be const.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-28 00:02:54 +00:00
Krzysztof Kozlowski
2515b24c04 regulator: max77693: Make regulator_desc array const
The regulator_register() expects array of 'regulator_desc' to be const.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-28 00:02:30 +00:00
Krzysztof Kozlowski
e1326eff80 regulator: dummy: Make regulator_desc array const
The regulator_register() expects array of 'regulator_desc' to be const.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-28 00:01:44 +00:00
Dan Carpenter
bf2753755f regulator: max77802: fix a test in max77802_set_suspend_mode()
The original test triggers a static checker warning.  Javier Martinez
Canillas says that the "!" is a typo and should be removed.

Fixes: 2e0eaa1aa0 ('regulator: max77802: Add set suspend mode for BUCKs and simplify code')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-27 18:18:21 +00:00
Mark Brown
bc02871b45 Merge remote-tracking branch 'regulator/fix/rk808' into regulator-linus 2014-10-27 11:26:24 +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
Romain Perier
2b17fa2825 regulator: act8865: Add support to turn off all outputs
When the property "poweroff-source" is found in the
devicetree, the function pm_power_off is defined. This function sends the
rights bit fields to the global off control register. shutdown/poweroff
commands are now supported for hardware components which use these PMU.

Signed-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-22 16:59:52 +01:00
Wolfram Sang
6c794b2654 regulator: drop owner assignment from platform_drivers
A platform_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-10-20 16:21:29 +02:00
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
Axel Lin
6cf0bf0dfb regulator: sky81452: Remove module version
The module version is unlikely to be updated, use kernel version should be
enough.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-20 12:24:08 +01:00
Krzysztof Kozlowski
80e82ac2dd regulator: s2mps11: Don't zero allocated memory for external control
The driver was allocating memory for storing GPIOs for external control
with unnecessary GFP_ZERO flag. Then right after allocation it
initialized memory to -EINVAL in loop. Skip the GFP_ZERO flag.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-20 12:24:04 +01:00
Beniamino Galvani
9075cceaac regulator: rn5t618: Convert to new style DT parsing
Use the simplified DT parsing method to remove some duplicated
code.

Since this is a MFD subdevice and its device object doesn't have an
associated DT node, the configuration instance used to register the
regulators has been changed to point to the parent device.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-20 12:23:59 +01:00
Chris Zhong
251ce318df regulator: rk808: Add support setting suspend voltage
support setting suspend voltage and disable regulator in suspend.

Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-20 12:23:55 +01:00
Javier Martinez Canillas
5356e0da49 regulator: max77802: Add header for operating modes
Add a header file for the max77802 constants that could be shared between
the regulator driver and Device Tree source files. Also, remove standby
and off opmodes since only normal and low power are valid operating modes.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-20 12:23:50 +01:00
Javier Martinez Canillas
0505be7149 regulator: max77802: Don't treat OFF as an operating mode
The only operating modes that are supported by the regulators in the
max77802 PMIC are Output ON (normal) and Output On in Low Power Mode.
OFF was wrongly counted as an operating mode while is only a regulator
status. Make clear in the code that OFF is not an operating mode.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-20 12:23:50 +01:00
Javier Martinez Canillas
2e0eaa1aa0 regulator: max77802: Add set suspend mode for BUCKs and simplify code
The max77802 PMIC has a special enable pin (PWRREQ) that can be used
by the Application Processor (AP) to power down and up voltage rails.

The max77802 PMIC regulators have 3 different enable control logics.
Some regulators support to be configured on different operational mode
during normal operation while others only support to be put in a Low
Power Mode while the system has entered in sleep mode. Some regulators
don't even support that configuration. The logics are the following:

Enable Control Logic1 by PWRREQ (BUCK 2-4, LDO2, LDO4-19, LDO22, LDO35)
-------------------------------
0: Output OFF
1: Output ON/OFF (Controlled by PWRREQ)
     PWRREQ = HIGH (1): Output ON in Normal Mode
     PWRREQ = LOW (0): Output OFF
2: Output On with Low Power Mode (Controlled by PWRREQ)
     PWRREQ = HIGH (1) : Output ON in Normal Mode
     PWRREQ = LOW (0): Output ON in Low Power Mode
3: Output ON in Normal Mode

Enable Control Logic2 by PWRREQ (LDO1, LDO20, LDO21)
-------------------------------
0: Output ON/OFF by ENx
1: Output ON in Low Power Mode
2: Output ON in Low Power Mode (Controlled by PWRREQ)
   PWRREQ = HIGH (1): Output ON in Normal Mode
   PWRREQ = LOW (0): Output ON in Low Power Mode
3: Output ON in Normal Mode

Enable Control Logic3 by PWRREQ (LDO3)
-------------------------------
0 or 3: Output ON in Normal Mode
1: Output ON in Low Power Mode
2: Output ON in Low Power Mode (Controlled by PWRREQ)
   PWRREQ = HIGH (1): Output ON in Normal Mode
   PWRREQ = LOW (0): Output ON in Low Power Mode

The driver only implemented .set_suspend_mode for the LDOs regulators
but some BUCKs also support to be put in Low Power Mode on system wide
suspend so they should be supported as well. Two different functions
were used for the logic 1 and 2 but this is not necessary.

Only normal and Low Power Mode are valid operational modes, OFF is not
an mode but is a regulator state that is handled by .set_suspend_enable
ad .set_suspend_disable. So the same .set_suspend_mode function can be
used by all the regulators that support Output On with Low Power Mode
by PWRREQ, making much simpler the code to set the suspend mode.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-20 12:23:50 +01:00
Javier Martinez Canillas
efbe519945 regulator: max77802: Add .{get,set}_mode callbacks
Some max77802 LDOs (1, 3, 20 and 21) support to be configured in Low
Power Mode during system normal operation. Add function handlers for
the .get_mode and .set_mode operations to set the mode on these LDOs.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-20 12:23:50 +01:00
Javier Martinez Canillas
b0615f1da5 regulator: max77802: Split regulator operations for BUCKs
Not all the max77802 BUCKs regulators have the same functionality, for
example BUCKs 2-4 support the output to be configured as normal or Low
Power Mode by the PWRREQ enable pin while the other BUCKs only support
their output to be set ON or OFF by PWRREQ. As a preparation for adding
a set_suspend_mode function handler for all the regulators that support
Low Power Mode by PWRREQ, split the operations for BUCKs regulators.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-20 12:23:50 +01:00
Javier Martinez Canillas
e6fb2aac55 regulator: max77802: Add .set_suspend_{enable,disable} callbacks
The max77802 PMIC has an enable pin (PWRREQ) that can be used to switch
regulators ON and OFF automatically by the Application Processor when
the system is leaving and entering sleep mode.

Only the BUCKs regulators had a .set_suspend_disable function handler
that used the enable pin to turn OFF the regulators during suspend.

But most LDOs also support that functionality (besides 1, 3, 20 and 21)
so rename the function to a more generic name and use the same function
for the LDOs. Also add a .set_suspend_enable handler for all regulators
and use the same function used for the .enable operation.

Finally, don't treat output ON/OFF controlled by PWRREQ as an operating
mode using the ambiguous MAX77802_OPMODE_STANDBY since it's not an opmode.
Instead make it clear that is a control value to switch the regulator OFF
by PWRREQ when the system is entering in a suspend state.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-20 12:23:49 +01:00
Markus Pargmann
76f439df50 regulator: Add ena_gpio_initialized to regulator_config
Most drivers do not set the ena_gpio field of struct regulator_config
before passing it to the regulator core. This is fine as long as the
gpio identifier that is passed is a positive integer. But the gpio
identifier 0 is also valid. So we are not able to decide wether we got a
real gpio identifier or not based on a 0 in ena_gpio.

To be able to decide if it is a valid gpio that got passed, this patch
adds a ena_gpio_initialized field that should be set if was initialized
with a correct value, either a gpio >= 0 or a negative error number. The
core then checks if ena_gpio or ena_gpio_initialized before handling it
as a gpio. This way we maintain backwards compatibility and fix the
behaviour for gpio number 0.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-20 12:23:45 +01:00
Markus Pargmann
da0607c8df regulator: anatop: Fail on invalid voltage selector
A '0' voltage selector is invalid and can't be used with this driver.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-20 12:23:41 +01:00
Markus Pargmann
fe08be3ec8 regulator: anatop: Set default voltage selector for vddpu
The code reads the default voltage selector from its register. If the
bootloader disables the regulator, the default voltage selector will be
0 which results in faulty behaviour of this regulator driver.

This patch sets a default voltage selector for vddpu if it is not set in
the register.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
2014-10-20 12:23:41 +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
Chris Zhong
1575e288cb regulator: rk808: Fix min_uV for DCDC1 & DCDC2
The min_uv in DCDC1 & DCDC2 should be 712.5mv

Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Reviwed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-07 20:40:00 +01:00
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
Axel Lin
da0bb557ba regulator: max77802: Remove duplicate rdev_get_id() call
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-05 11:34:12 +01:00
Axel Lin
97795e4da2 regulator: hi6421: Fix misleading comment
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-05 11:33:37 +01:00
Axel Lin
67c866cfcb regulator: da9211: Fix missing config.of_node setting
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-03 15:37:11 +01:00
Doug Anderson
b8074eba2a regulator: RK808: Add proper input supplies for rk808
The original RK808 regulator driver didn't setup input supplies
properly.  Add them.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-02 17:30:31 +01:00