linux-stable.git/drivers/regulator, branch v3.7.3

regulator: max8998: Ensure enough delay time for max8998_set_voltage_buck_time_sel

2013-01-17T16:46:39+00:00

commit 81d0a6ae7befb24c06f4aa4856af7f8d1f612171 upstream.

Use DIV_ROUND_UP to prevent truncation by integer division issue.
This ensures we return enough delay time.

Signed-off-by: Axel Lin 
Signed-off-by: Mark Brown 
Signed-off-by: Greg Kroah-Hartman

regulator: max8998: Use uV in voltage_map_desc

2013-01-17T16:46:39+00:00

commit adf6178ad5552a7f2f742a8c85343c50f080c412 upstream.

Integer division may truncate.
This happens when pdata->buckx_voltagex setting is not align with 1000 uV.
Thus use uV in voltage_map_desc, this ensures the selected voltage won't less
than pdata buckx_voltagex settings.

Signed-off-by: Axel Lin 
Signed-off-by: Mark Brown 
Signed-off-by: Greg Kroah-Hartman

regulator: max8997: Use uV in voltage_map_desc

2013-01-17T16:46:39+00:00

commit bc3b7756b5ff66828acf7bc24f148d28b8d61108 upstream.

Current code does integer division (min_vol = min_uV / 1000) before pass
min_vol to max8997_get_voltage_proper_val().
So it is possible min_vol is truncated to a smaller value.

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

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

Signed-off-by: Axel Lin 
Signed-off-by: Mark Brown 
Signed-off-by: Greg Kroah-Hartman

regulator: s2mps11: Fix ramp delay value shift operation

2013-01-17T16:45:56+00:00

commit f7ebaaeb0b4b97b20c1816f11884e7bfe610a2fa upstream.

This patch fix the abnormal ramp delay setting.
The shift operation was wrong.

Signed-off-by: Sangbeom Kim 
Signed-off-by: Mark Brown 
Signed-off-by: Greg Kroah-Hartman

regulator: wm831x: Set the new rather than old value for DVS VSEL

2013-01-17T16:45:44+00:00

commit 13ae633cf729b0ecb677b75b04886ff8fada8fad upstream.

Reported-by: Guennadi Liakhovetski 
Signed-off-by: Mark Brown 
Signed-off-by: Greg Kroah-Hartman

Merge remote-tracking branches 'regulator/fix/gpio', 'regulator/fix/put' and 'regulator/fix/supp-volt' into tmp

2012-11-15T02:16:02+00:00

regulator: fix voltage check in regulator_is_supported_voltage()

2012-11-15T02:14:18+00:00

regulator_is_supported_voltage() should return true only if the voltage
of fixed/constant regulator is between min_uV and max_uV.

Signed-off-by: Marek Szyprowski 
Signed-off-by: Mark Brown 
Cc: stable@vger.kernel.org

regulator: core: Avoid deadlock when regulator_register fails

2012-11-14T10:01:15+00:00

When regulator_register fails and exits through the scrub path the
regulator_put function was called whilst holding the
regulator_list_mutex, causing deadlock.

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

Signed-off-by: Charles Keepax 
Signed-off-by: Mark Brown

Regulator: core: Unregister when gpio request fails.

2012-10-28T18:13:07+00:00

If the gpio_request_one() fails, or returns EPROBE_DEFER, the
regulator must be device_unregister()ed. When this is not done,
there are WARNING: from sysfs:

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

Signed-off-by: Andrew Lunn 
Signed-off-by: Mark Brown

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

2012-10-05T03:01:30+00:00

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

  As usual we have a few new drivers:

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

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

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

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

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

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

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

Guys, DON'T REBASE!

* tag 'mfd-3.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (89 commits)
  ARM: dts: Enable 88pm860x pmic
  mfd: 88pm860x: Move gpadc init into touch
  mfd: 88pm860x: Device tree support
  mfd: 88pm860x: Use irqdomain
  mfd: smsc: Add support for smsc gpio io/keypad driver
  backlight: tps65217_bl: Add missing platform_set_drvdata in tps65217_bl_probe
  mfd: DA9055 core driver
  mfd: tps65910: Add alarm interrupt of TPS65910 RTC to mfd device list
  mfd: wm5110: Add register patches for revision B
  mfd: wm5110: Disable control interface error report for WM5110 rev B
  mfd: max8907: Remove regulator-compatible from DT docs
  backlight: Add TPS65217 WLED driver
  mfd: Add backlight as subdevice to the tps65217
  mfd: Provide the PRCMU with its own IRQ domain
  mfd: Fix max8907 sparse warning
  mfd: Add lp8788 mfd driver
  mfd: dbx500: Provide a more accurate smp_twd clock
  mfd: rc5t583: Fix warning messages
  regulator: palmas: Add DT support
  mfd: palmas: Change regulator defns to better suite DT
  ...