Commit Graph

650 Commits

Author SHA1 Message Date
Linus Torvalds 4a1e8ebc5e regulator: Fixes for -rc1
A bunch of smallish fixes that came up during the merge window as
 things got more testing - even more fixes from Axel, a fix for error
 handling in more complex systems using -EPROBE_DEFER and a couple of
 small fixes for the new dummy regulators.
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Merge tag 'regulator-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
 "A bunch of smallish fixes that came up during the merge window as
  things got more testing - even more fixes from Axel, a fix for error
  handling in more complex systems using -EPROBE_DEFER and a couple of
  small fixes for the new dummy regulators."

* tag 'regulator-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: Remove non-existent parameter from fixed-helper.c kernel doc
  regulator: Fix setting new voltage in s5m8767_set_voltage
  regulator: fix sysfs name collision between dummy and fixed dummy regulator
  regulator: Fix deadlock on removal of regulators with supplies
  regulator: Fix comments in include/linux/regulator/machine.h
  regulator: Only update [LDOx|DCx]_HIB_MODE bits in wm8350_[ldo|dcdc]_set_suspend_disable
  regulator: Fix setting low power mode for wm831x aldo
  regulator: Return microamps in wm8350_isink_get_current
  regulator: wm8350: Fix the logic to choose best current limit setting
  regulator: wm831x-isink: Fix the logic to choose best current limit setting
  regulator: wm831x-dcdc: Fix the logic to choose best current limit setting
  regulator: anatop: patching to device-tree property "reg".
  regulator: Do proper shift to set correct bit for DC[2|5]_HIB_MODE setting
  regulator: Fix restoring pmic.dcdcx_hib_mode settings in wm8350_dcdc_set_suspend_enable
  regulator: Fix unbalanced lock/unlock in mc13892_regulator_probe error path
  regulator: Fix set and get current limit for wm831x_buckv
  regulator: tps6586x: Fix list minimal voltage setting for LDO0
2012-04-04 10:09:30 -07:00
Russ Dill d49fe3c4cd regulator: Remove non-existent parameter from fixed-helper.c kernel doc
Signed-off-by: Russ Dill <russ.dill@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-31 19:41:20 +01:00
Axel Lin 546e78452a regulator: Fix setting new voltage in s5m8767_set_voltage
Current code does not really update the register with new value, fix it.
I rename the variable i to sel for better readability.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Sangbeom Kim <sbkim73@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-31 11:26:19 +01:00
Shawn Guo 5f12760d28 regulator: fix sysfs name collision between dummy and fixed dummy regulator
When regulator_register_fixed() is being used to register fixed dummy
regulator, the following line will be seen in the boot log.  And the
sysfs entry for fixed dummy regulator is not shown.

  dummy: Failed to create debugfs directory

The patch renames the fixed dummy supply to "fixed-dummy" to avoid
the name collision with dummy regulator.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-31 11:26:17 +01:00
Mark Brown e032b37655 regulator: Fix deadlock on removal of regulators with supplies
If a regulator with a supply is being unregistered we will call
regulator_put() to release the supply with the regulator_list_mutex held
but this deadlocks as regulator_put() takes the same lock. Fix this by
releasing the supply before we take the mutex in regulator_unregister().

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-29 22:50:14 +01:00
Axel Lin cee1a799eb regulator: Only update [LDOx|DCx]_HIB_MODE bits in wm8350_[ldo|dcdc]_set_suspend_disable
What we want is to disable output by setting [LDOx|DCx]_HIB_MODE bits.
Current code also clears other bits in LDOx/DCDCx Low Power register.

R202 (CAh) LDO1 Low Power
BIT[13:12] LDO1 Hibernate behaviour:
00 = Select voltage image settings
01 = disable output
10 = reserved
11 = reserved

R182 (B6h) DCDC1 Low Power
BIT[14:12] DC-DC1 Hibernate behaviour:
000 = Use current settings (no change)
001 = Select voltage image settings
010 = Force standby mode
011 = Force standby mode and voltage image settings.
100 = Force LDO mode
101 = Force LDO mode and voltage image settings.
110 = Reserved.
111 = Disable output

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-29 12:06:24 +01:00
Axel Lin e841a36abb regulator: Fix setting low power mode for wm831x aldo
Set BIT[8] of LDO7 ON Control mode for low power mode.

R16507 (407Bh)  LDO7 ON Control
BIT[8] LDO7_ON_MODE: LDO7 ON Operating Mode
        0 = Normal mode
        1 = Low Power mode

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-29 12:06:24 +01:00
Axel Lin fa5a97bb0c regulator: Return microamps in wm8350_isink_get_current
The values in isink_cur array are microamps.
The regulator core expects get_current_limit callback to return microamps.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-28 12:44:13 +01:00
Axel Lin 3a744038b3 regulator: wm8350: Fix the logic to choose best current limit setting
Current implementation in get_isink_val actually choose the biggest current
limit setting falls within the specified range.
What we want is to choose the smallest current limit setting falls within the
specified range. Fix it.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-28 12:44:07 +01:00
Axel Lin ed3be9a0e3 regulator: wm831x-isink: Fix the logic to choose best current limit setting
Current code in wm831x_isink_set_current actually set the current limit setting
smaller than specified range.

Fix the logic in wm831x_isink_set_current to choose the smallest current limit
setting falls within the specified range.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-28 12:44:07 +01:00
Axel Lin a171e782a9 regulator: wm831x-dcdc: Fix the logic to choose best current limit setting
Current code in wm831x_buckv_set_current_limit actually set the current limit
setting greater than specified range.

Fix the logic in wm831x_buckv_set_current_limit to choose the
smallest current limit setting falls within the specified range.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-28 12:44:07 +01:00
Ying-Chun Liu (PaulLiu) 2f2cc27f50 regulator: anatop: patching to device-tree property "reg".
Change "reg" to "anatop-reg-offset" due to there is a warning of handling no
size field in reg.

This patch also adds the missing device-tree binding documentation.

Signed-off-by: Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-28 11:52:10 +01:00
Linus Torvalds 34800598b2 ARM: driver specific updates
These are all specific to some driver. They are typically the platform
 side of a change in the drivers directory, such as adding a new driver
 or extending the interface to the platform. In cases where there is no
 maintainer for the driver, or the maintainer prefers to have the
 platform changes in the same branch as the driver changes, the patches
 to the drivers are included as well.
 
 A much smaller set of driver updates that depend on other branches
 getting merged first will be sent later.
 
 The new export of tegra_chip_uid conflicts with other changes in fuse.c.
 In rtc-sa1100.c, the global removal of IRQF_DISABLED conflicts with
 the cleanup of the interrupt handling of that driver.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull "ARM: driver specific updates" from Arnd Bergmann:
 "These are all specific to some driver.  They are typically the
  platform side of a change in the drivers directory, such as adding a
  new driver or extending the interface to the platform.  In cases where
  there is no maintainer for the driver, or the maintainer prefers to
  have the platform changes in the same branch as the driver changes,
  the patches to the drivers are included as well.

  A much smaller set of driver updates that depend on other branches
  getting merged first will be sent later.

  The new export of tegra_chip_uid conflicts with other changes in
  fuse.c.  In rtc-sa1100.c, the global removal of IRQF_DISABLED
  conflicts with the cleanup of the interrupt handling of that driver.

  Signed-off-by: Arnd Bergmann <arnd@arndb.de>"

Fixed up aforementioned trivial conflicts.

* tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (94 commits)
  ARM: SAMSUNG: change the name from s3c-sdhci to exynos4-sdhci
  mmc: sdhci-s3c: add platform data for the second capability
  ARM: SAMSUNG: support the second capability for samsung-soc
  ARM: EXYNOS: add support DMA for EXYNOS4X12 SoC
  ARM: EXYNOS: Add apb_pclk clkdev entry for mdma1
  ARM: EXYNOS: Enable MDMA driver
  regulator: Remove bq24022 regulator driver
  rtc: sa1100: add OF support
  pxa: magician/hx4700: Convert to gpio-regulator from bq24022
  ARM: OMAP3+: SmartReflex: fix error handling
  ARM: OMAP3+: SmartReflex: fix the use of debugfs_create_* API
  ARM: OMAP3+: SmartReflex: micro-optimization for sanity check
  ARM: OMAP3+: SmartReflex: misc cleanups
  ARM: OMAP3+: SmartReflex: move late_initcall() closer to its argument
  ARM: OMAP3+: SmartReflex: add missing platform_set_drvdata()
  ARM: OMAP3+: hwmod: add SmartReflex IRQs
  ARM: OMAP3+: SmartReflex: clear ERRCONFIG_VPBOUNDINTST only on a need
  ARM: OMAP3+: SmartReflex: Fix status masking in ERRCONFIG register
  ARM: OMAP3+: SmartReflex: Add a shutdown hook
  ARM: OMAP3+: SmartReflex Class3: disable errorgen before disable VP
  ...

Conflicts:
	arch/arm/mach-tegra/Makefile
	arch/arm/mach-tegra/fuse.c
	drivers/rtc/rtc-sa1100.c
2012-03-27 16:41:24 -07:00
Axel Lin 9300928692 regulator: Do proper shift to set correct bit for DC[2|5]_HIB_MODE setting
DC[2|5]_HIB_MODE is BIT 12 of DCDC[2|5] Control register.
WM8350_DC2_HIB_MODE_ACTIVE/WM8350_DC2_HIB_MODE_DISABLE are defined as 1/0.
Thus we need to left shift WM8350_DC2_HIB_MODE_SHIFT bits.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-26 18:35:35 +01:00
Axel Lin eb4168158f regulator: Fix restoring pmic.dcdcx_hib_mode settings in wm8350_dcdc_set_suspend_enable
What we want is to restore wm8350->pmic.dcdcx_hib_mode settings to
WM8350_DCDCx_LOW_POWER registers. Current code also clears all other
bits of WM8350_DCDCx_LOW_POWER registers which is wrong.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-26 18:35:35 +01:00
Axel Lin 5777d9b34a regulator: Fix unbalanced lock/unlock in mc13892_regulator_probe error path
We do not hold a lock while registering regulator, thus should not call unlock
if regulator_register fails.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-26 18:32:11 +01:00
Axel Lin 09bf14b901 regulator: Fix set and get current limit for wm831x_buckv
WM831X_DC1_HC_THR_MASK is 0x0070.
We need to do proper shift for setting and getting current limit.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-26 18:31:34 +01:00
Axel Lin 51579137c5 regulator: tps6586x: Fix list minimal voltage setting for LDO0
According to the datasheet, LDO0 has minimal voltage 1.2V rather than 1.25V.

Table 3-39. VLDO0[2:0] Settings
VLDOx[2:0] VOUT (V) VLDOx[2:0] VOUT (V)
000        1.20     100        2.70
001        1.50     101        2.85
010        1.80     110        3.10
011        2.50     111        3.30

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-26 11:55:29 +01:00
Arnd Bergmann 511f1cb6d4 Merge tag 'regulator-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into next/drivers
The pxa regulator branch removes the bq24022 driver, while a lot of
other regulator drivers got added in the regulator tree. This
resolves the trivial conflicts by merging in the regulator patches
that are already merged into v3.4.

Conflicts:
	drivers/regulator/Kconfig
	drivers/regulator/Makefile

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-03-24 11:29:58 +00:00
Linus Torvalds d15d76448b regulator: Updates for 3.4
This has been a fairly quiet release from a regulator point of view, the
 only real framework features added were devm support and a convenience
 helper for setting up fixed voltage regulators.
 
 We also added a couple of drivers (but will drop the BQ240022 driver via
 the arm-soc tree as it's been replaced by the more generic
 gpio-regulator driver) and Axel Lin continued his relentless and
 generally awesome stream of fixes and cleanups.
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Merge tag 'regulator-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates for 3.4 from Mark Brown:
 "This has been a fairly quiet release from a regulator point of view,
  the only real framework features added were devm support and a
  convenience helper for setting up fixed voltage regulators.

  We also added a couple of drivers (but will drop the BQ240022 driver
  via the arm-soc tree as it's been replaced by the more generic
  gpio-regulator driver) and Axel Lin continued his relentless and
  generally awesome stream of fixes and cleanups."

* tag 'regulator-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (93 commits)
  regulator: Fix up a confusing dev_warn when DT lookup fails
  regulator: Convert tps6507x to set_voltage_sel
  regulator: Refactor tps6507x to use one tps6507x_pmic_ops for all LDOs and DCDCs
  regulator: Make s5m8767_get_voltage_register always return correct register
  regulator: s5m8767: Check pdata->buck[2|3|4]_gpiodvs earlier
  regulator: tps65910: Provide settling time for DCDC voltage change
  regulator: Add Anatop regulator driver
  regulator: Simplify implementation of tps65912_get_voltage_dcdc
  regulator: Use tps65912_set_voltage_sel for both DCDCx and LDOx
  regulator: tps65910: Provide settling time for enabling rails
  regulator: max8925: Use DIV_ROUND_UP macro
  regulator: tps65912: Use simple equations to get register address
  regulator: Fix the logic of tps65910_get_mode
  regulator: Merge tps65217_pmic_ldo234_ops and tps65217_pmic_dcdc_ops to tps65217_pmic_ops
  regulator: Use DIV_ROUND_CLOSEST in wm8350_isink_get_current
  regulator: Use array to store dcdc_range settings for tps65912
  regulator: Rename s5m8767_convert_voltage to s5m8767_convert_voltage_to_sel
  regulator: tps6524x: Remove unneeded comment for N_REGULATORS
  regulator: Rename set_voltage_sel callback function name to *_sel
  regulator: Fix s5m8767_set_voltage_time_sel calculation value
  ...
2012-03-21 10:34:56 -07:00
Arnd Bergmann f907ab06bb Merge branch 'next/fixes-non-critical' into next/drivers
Conflicts:
	arch/arm/mach-lpc32xx/clock.c
	arch/arm/mach-pxa/pxa25x.c
	arch/arm/mach-pxa/pxa27x.c

The conflicts with pxa are non-obvious, we have multiple branches
adding and removing the same clock settings. According to
Haojian Zhuang, removing the sa1100 rtc dummy clock is the correct
fix here.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-03-20 22:42:24 +00:00
Linus Torvalds 4a52246302 driver core merge for 3.4-rc1
Here's the big driver core merge for 3.4-rc1.
 
 Lots of various things here, sysfs fixes/tweaks (with the nlink breakage
 reverted), dynamic debugging updates, w1 drivers, hyperv driver updates,
 and a variety of other bits and pieces, full information in the
 shortlog.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core patches for 3.4-rc1 from Greg KH:
 "Here's the big driver core merge for 3.4-rc1.

  Lots of various things here, sysfs fixes/tweaks (with the nlink
  breakage reverted), dynamic debugging updates, w1 drivers, hyperv
  driver updates, and a variety of other bits and pieces, full
  information in the shortlog."

* tag 'driver-core-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (78 commits)
  Tools: hv: Support enumeration from all the pools
  Tools: hv: Fully support the new KVP verbs in the user level daemon
  Drivers: hv: Support the newly introduced KVP messages in the driver
  Drivers: hv: Add new message types to enhance KVP
  regulator: Support driver probe deferral
  Revert "sysfs: Kill nlink counting."
  uevent: send events in correct order according to seqnum (v3)
  driver core: minor comment formatting cleanups
  driver core: move the deferred probe pointer into the private area
  drivercore: Add driver probe deferral mechanism
  DS2781 Maxim Stand-Alone Fuel Gauge battery and w1 slave drivers
  w1_bq27000: Only one thread can access the bq27000 at a time.
  w1_bq27000 - remove w1_bq27000_write
  w1_bq27000: remove unnecessary NULL test.
  sysfs: Fix memory leak in sysfs_sd_setsecdata().
  intel_idle: Revert change of auto_demotion_disable_flags for Nehalem
  w1: Fix w1_bq27000
  driver-core: documentation: fix up Greg's email address
  powernow-k6: Really enable auto-loading
  powernow-k7: Fix CPU family number
  ...
2012-03-20 11:16:20 -07:00
Mark Brown 4992fa1fd4 TWL specific changes, cross-merged with OMAP due to arch/arm wanting to
use the new ability to override the voltage set and get operations to
 support the in-CPU voltage management.  The other changes are minor
 fixes, the addition of a few new regulators and device tree support.
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Merge tag 'topic/twl' into regulator-next

TWL specific changes, cross-merged with OMAP due to arch/arm wanting to
use the new ability to override the voltage set and get operations to
support the in-CPU voltage management.  The other changes are minor
fixes, the addition of a few new regulators and device tree support.
2012-03-19 17:17:32 +00:00
Mark Brown 115e4bfd5b Merge remote-tracking branch 'regulator/topic/supply' into regulator-next 2012-03-18 21:39:19 +00:00
Mark Brown c02f935f5f Merge remote-tracking branches 'regulator/topic/devm' and 'regulator/topic/stub' into regulator-next 2012-03-18 21:38:28 +00:00
Mark Brown c592c761a3 Merge remote-tracking branch 'regulator/topic/stub' into regulator-next 2012-03-18 21:38:20 +00:00
Mark Brown 63236f4038 Merge remote-tracking branch 'regulator/topic/drivers' into regulator-next 2012-03-18 21:37:37 +00:00
Rajendra Nayak 16fbcc3b11 regulator: Fix up a confusing dev_warn when DT lookup fails
of_parse_phandle() returns NULL either if the property name
itself does not exist or if it (exists and) does not
reference a valid phandle.
Giving out a warn like the one below (that the property references
an invalid phandle) can be confusing when the property itself
does not exist in the node.
Fix it with a more sensible message and make it a dev_dbg instead
of a dev_warn.

Reported-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-16 19:26:09 +00:00
Axel Lin ca61a7bfcd regulator: Convert tps6507x to set_voltage_sel
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-14 14:13:17 +00:00
Axel Lin f2933d3331 regulator: Refactor tps6507x to use one tps6507x_pmic_ops for all LDOs and DCDCs
All the callback functions implementation for DCDCx and LDOx are very similar,
I think it is ok to use one tps6507x_pmic_ops for all LDOs and DCDCs.
This refactor removes a couple of duplicated code.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-14 14:13:17 +00:00
Axel Lin 0a41685fd5 regulator: Make s5m8767_get_voltage_register always return correct register
Check s5m8767->buck[2|3|4]_gpiodvs status in s5m8767_get_voltage_register
and return correct register accordingly.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Sangbeom Kim <sbkim73@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-14 14:10:41 +00:00
Axel Lin 6c4efe2474 regulator: s5m8767: Check pdata->buck[2|3|4]_gpiodvs earlier
If we need to ensure only one of the buck[2|3|4]_gpiodvs can be specificed,
check them earlier.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Sangbeom Kim <sbkim73@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-14 14:10:30 +00:00
Laxman Dewangan 18039e0f16 regulator: tps65910: Provide settling time for DCDC voltage change
Settling time is require when there is dcdc rail's voltage change.
Returning proper delay time for dcdc voltage change to settle down
the output voltage to new value.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-14 12:37:41 +00:00
Ying-Chun Liu (PaulLiu) e3e5aff714 regulator: Add Anatop regulator driver
Anatop is an integrated regulator inside i.MX6 SoC.
There are 3 digital regulators which controls PU, CORE (ARM), and SOC.
And 3 analog regulators which controls 1P1, 2P5, 3P0 (USB).
This patch adds the Anatop regulator driver.

Signed-off-by: Nancy Chen <Nancy.Chen@freescale.com>
Signed-off-by: Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-14 12:37:35 +00:00
Axel Lin c567556e75 regulator: Simplify implementation of tps65912_get_voltage_dcdc
Call tps65912_get_sel_register instead of duplicating the same code.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-14 12:37:23 +00:00
Axel Lin 831c986f5d regulator: Use tps65912_set_voltage_sel for both DCDCx and LDOx
commit 42b5ef "regulator: tps65912: Use simple equations to get register address"
uses tps65912_get_sel_register to replace tps65912_get_dcdc_sel_register
and tps65912_get_ldo_sel_register.

Now tps65912_set_voltage_dcdc_sel and tps65912_set_voltage_ldo_sel has exactly
the same implementation. Merge them to tps65912_set_voltage_sel function.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-14 12:37:22 +00:00
Laxman Dewangan 0651eed5e0 regulator: tps65910: Provide settling time for enabling rails
There is settling time for each rails when it is switched to
ON. Implementing enable time for returning proper settling time
of regulator rails when it is enabled.
Filling the on-time for each rail as per tps65910/tps65911
datasheets.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-13 23:22:45 +00:00
Axel Lin 5db6d09a2b regulator: max8925: Use DIV_ROUND_UP macro
Use DIV_ROUND_UP macro for better readability.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-13 23:19:40 +00:00
Axel Lin 42b5efe4f9 regulator: tps65912: Use simple equations to get register address
The address of ctrl and sel registers can be calculated by simple equations.
This patch simplifies the implementation in tps65912_get_ctrl_register and
implements tps65912_get_sel_register to replace tps65912_get_dcdc_sel_register
and tps65912_get_ldo_sel_register.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-13 23:19:34 +00:00
Axel Lin 585993932c regulator: Fix the logic of tps65910_get_mode
We actually clear LDO_ST_ON_BIT for standby mode in tps65910_set_mode.
Fix the logic in tps65910_get_mode.

Supply state (EEPROM bits):
ST[1:0] = 00 : Off
ST[1:0] = 01 : On high power (ACTIVE)
ST[1:0] = 10 : Off
ST[1:0] = 11 : On low power (SLEEP)

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-13 23:18:03 +00:00
Mark Brown 04bf30115f regulator: Support driver probe deferral
If we fail to locate a requested regulator return -EPROBE_DEFER. If drivers
pass this error code through to their caller (which they really should)
then this will ensure that the probe is retried later when further devices
become available.  In the unusual case where a driver doesn't want this
it can override the default behaviour.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-12 10:38:47 -07:00
Axel Lin fc56911bc6 regulator: Merge tps65217_pmic_ldo234_ops and tps65217_pmic_dcdc_ops to tps65217_pmic_ops
Most callback functions implementation for tps65217_pmic_ldo234_ops and
tps65217_pmic_dcdc_ops are the same except the rid range checking.

This patch uses tps65217_pmic_ops for all DCDCx, LDO2, LDO3, and LDO4.
And rework tps65217_pmic_set_voltage to make it can be called for
DCDCx, LDO2, LDO3, and LDO4.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-12 10:50:46 +00:00
Axel Lin dce7304f4b regulator: Use DIV_ROUND_CLOSEST in wm8350_isink_get_current
DIV_ROUND_CLOSEST performs the computation (x + d/2)/d with better readability.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-12 10:48:18 +00:00
Axel Lin 85c5d86d0e regulator: Use array to store dcdc_range settings for tps65912
Then we can use the regulator id as array index to access the array.
This change makes the code simpler.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-11 20:49:35 +00:00
Axel Lin 5b5e977ce7 regulator: Rename s5m8767_convert_voltage to s5m8767_convert_voltage_to_sel
This function finds the smallest voltage that falls within the specified range,
and then returns the selector. This rename makes the intention more clear.

Also remove unneeded local variables min_vol and max_vol in s5m8767_set_voltage
and s5m8767_set_voltage_buck.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Sangbeom Kim <sbkim73@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-11 20:49:35 +00:00
Axel Lin 4d984d1cd8 regulator: tps6524x: Remove unneeded comment for N_REGULATORS
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-11 20:49:34 +00:00
Axel Lin 94732b97c3 regulator: Rename set_voltage_sel callback function name to *_sel
This change improves readability.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-11 20:49:33 +00:00
Sangbeom Kim 0f8b9c7744 regulator: Fix s5m8767_set_voltage_time_sel calculation value
In the s5m8767_set_voltage_time_sel function, divisor unit is wrong.
ramp_delay is usec unit. So 1000 should be multiplied.

Signed-off-by: Sangbeom Kim <sbkim73@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-11 20:49:29 +00:00
Thierry Reding 394ee3d5be regulator: tps6586x: fix typo in debug message
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-11 20:49:29 +00:00
Laxman Dewangan f30b0716fe regulator: tps65910: Sleep off rails when ext sleep configured
Keep the rails OFF in sleep mode only when the rails are
controlled by external sleep control.
The devices tps65910 and tps65911, both has the sleep input.
The tps65911's sleep input is not same as tps65910's EN3 and hence
taking care of SLEEP input as separate external sleep control input.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-11 20:49:28 +00:00