linux-toradex.git/include/linux/mfd/core.h, branch v4.17-rc1

Merge tag 'mfd-for-linus-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

2016-05-20T18:10:24+00:00

Pull MFD updates from Lee Jones:
 "New Drivers:
   - Add new driver for MAXIM MAX77620/MAX20024 PMIC
   - Add new driver for Hisilicon HI665X PMIC

  New Device Support:
   - Add support for AXP809 in axp20x-rsb
   - Add support for Power Supply in axp20x

  New core features:
   - devm_mfd_* managed resources

  Fix-ups:
   - Remove unused code (da9063-irq, wm8400-core, tps6105x,
     smsc-ece1099, twl4030-power)
   - Improve clean-up in error path (intel_quark_i2c_gpio)
   - Explicitly include headers (syscon.h)
   - Allow building as modules (max77693)
   - Use IS_ENABLED() instead of rolling your own (dm355evm_msp,
     wm8400-core)
   - DT adaptions (axp20x, hi655x, arizona, max77620)
   - Remove CLK_IS_ROOT flag (intel-lpss, intel_quark)
   - Move to gpiochip API (asic3, dm355evm_msp, htc-egpio, htc-i2cpld,
     sm501, tc6393xb, tps65010, ucb1x00, vexpress)
   - Make use of devm_mfd_* calls (act8945a, as3711, atmel-hlcdc,
     bcm590xx, hi6421-pmic-core, lp3943, menf21bmc, mt6397, rdc321x,
     rk808, rn5t618, rt5033, sky81452, stw481x, tps6507x, tps65217,
     wm8400)

  Bug Fixes"
   - Fix ACPI child matching (mfd-core)
   - Fix start-up ordering issues (mt6397-core, arizona-core)
   - Fix forgotten register state on resume (intel-lpss)
   - Fix Clock related issues (twl6040)
   - Fix scheduling whilst atomic (omap-usb-tll)
   - Kconfig changes (vexpress)"

* tag 'mfd-for-linus-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (73 commits)
  mfd: hi655x: Add MFD driver for hi655x
  mfd: ab8500-debugfs: Trivial fix of spelling mistake on "between"
  mfd: vexpress: Add !ARCH_USES_GETTIMEOFFSET dependency
  mfd: Add device-tree binding doc for PMIC MAX77620/MAX20024
  mfd: max77620: Add core driver for MAX77620/MAX20024
  mfd: arizona: Add defines for GPSW values that can be used from DT
  mfd: omap-usb-tll: Fix scheduling while atomic BUG
  mfd: wm5110: ARIZONA_CLOCK_CONTROL should be volatile
  mfd: axp20x: Add a cell for the ac power_supply part of the axp20x PMICs
  mfd: intel_soc_pmic_core: Terminate panel control GPIO lookup table correctly
  mfd: wl1273-core: Use devm_mfd_add_devices() for mfd_device registration
  mfd: tps65910: Use devm_mfd_add_devices and devm_regmap_add_irq_chip
  mfd: sec: Use devm_mfd_add_devices and devm_regmap_add_irq_chip
  mfd: rc5t583: Use devm_mfd_add_devices and devm_request_threaded_irq
  mfd: max77686: Use devm_mfd_add_devices and devm_regmap_add_irq_chip
  mfd: as3722: Use devm_mfd_add_devices and devm_regmap_add_irq_chip
  mfd: twl4030-power: Remove driver path in file comment
  MAINTAINERS: Add entry for X-Powers AXP family PMIC drivers
  mfd: smsc-ece1099: Remove unnecessarily remove callback
  mfd: Use IS_ENABLED(CONFIG_FOO) instead of checking FOO || FOO_MODULE
  ...

mfd: Add resource managed APIs for mfd_add_devices

2016-04-19T06:54:19+00:00

Add resource managed API devm_mfd_add_devices() for the mfd_add_devices().

This helps in reducing code in error path as it is not required
to call mfd_remove_devices() explicitly to remove all child-devices.
In some cases, it also helps not to implement .remove() callback
which get called during driver unbind.

Signed-off-by: Laxman Dewangan 
Signed-off-by: Lee Jones

device property: don't bother the drivers with struct property_set

2016-04-09T01:10:50+00:00

Since device_add_property_set() now always takes a copy of
the property_set, and also since the fwnode type is always
hard coded to be FWNODE_PDATA, there is no need for the
drivers to deliver the entire struct property_set. The
function can just create the instance of it on its own and
bind the properties from the drivers to it on the spot.

This renames device_add_property_set() to
device_add_properties(). The function now takes struct
property_entry as its parameter instead of struct
property_set.

Reviewed-by: Andy Shevchenko 
Reviewed-by: Mika Westerberg 
Acked-by: Thierry Reding 
Acked-by: Lee Jones 
Signed-off-by: Heikki Krogerus 
Signed-off-by: Rafael J. Wysocki

mfd: core: propagate device properties to sub devices drivers

2015-12-07T01:29:23+00:00

In the similar way like we do for the platform data we propagate the device
properties. For example, in case of Intel LPSS drivers we may provide a
specific property to tell the actual device driver an additional information
such as platform name.

Signed-off-by: Andy Shevchenko 
Signed-off-by: Rafael J. Wysocki

mfd: core: redo ACPI matching of the children devices

2015-10-26T14:25:53+00:00

There is at least one board on the market, i.e. Intel Galileo Gen2, that uses
_ADR to distinguish the devices under one actual device. Due to this we have to
improve the quirk in the MFD core to handle that board.

Acked-by: Rafael J. Wysocki 
Acked-by: Lee Jones 
Signed-off-by: Andy Shevchenko 
Signed-off-by: Wolfram Sang

mfd: core: Add helper function to register hotplug devices

2014-11-10T16:30:03+00:00

Hot-pluggable multi-function devices should always be registered with
PLATFORM_DEVID_AUTO to avoid name collisions on the platform bus. This
helper also hides the memory map and irq parameters, which aren't used
by hot-pluggable (e.g. USB-based) devices.

Signed-off-by: Johan Hovold 
Signed-off-by: Lee Jones

mfd: Add ACPI support

2014-09-26T07:24:05+00:00

If an MFD device is backed by ACPI namespace, we should allow subdevice
drivers to access their corresponding ACPI companion devices through normal
means (e.g using ACPI_COMPANION()).

This patch adds such support to the MFD core. If the MFD parent device
does not specify any ACPI _HID/_CID for the child device, the child
device will share the parent ACPI companion device. Otherwise the child
device will be assigned with the corresponding ACPI companion, if found
in the namespace below the parent.

Signed-off-by: Mika Westerberg 
Reviewed-by: Darren Hart 
Signed-off-by: Lee Jones

regulator: Constify the pointer to alias name array

2014-05-23T17:55:23+00:00

Toughen-up checks for read-only regulator names.

Signed-off-by: Lee Jones 
Signed-off-by: Mark Brown

Merge tag 'mfd-3.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next

2013-11-16T00:37:40+00:00

Pull MFD updates from Samuel Ortiz:
 "For the 3.13 merge window we have a couple of new drivers for the AMS
  AS3722 PMIC and for STMicroelectronics STw481x PMIC.

  Although this is a smaller update than usual, we also have:

   - Device tree support for the max77693 driver

   - linux/of.h inclusion for all DT compatible MFD drivers, to avoid
     build breakage in the future

   - Support for Intel Wildcat Point-LP PCH through the lpc_ich driver

   - A small arizona update for new wm5110 DSP registers and a few fixes

   - A small palmas update as well, including an of_device table
     addition and a few minor fixes

   - Two small mfd-core changes, one including a memory leak fix for
     when mfd_add_device() fails

   - Our usual round of minor cleanups and janitorial fixes"

* tag 'mfd-3.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next: (63 commits)
  Documentation: mfd: Update s2mps11.txt
  mfd: pm8921: Potential NULL dereference in pm8921_remove()
  mfd: Fix memory leak in mfd_add_devices()
  mfd: Stop setting refcounting pointers in original mfd_cell arrays
  mfd: wm5110: Enable micd clamp functionality
  mfd: lpc_ich: Add Device IDs for Intel Wildcat Point-LP PCH
  mfd: max77693: Fix up bug of wrong interrupt number
  mfd: as3722: Don't export the regmap config
  mfd: twl6040: Remove obsolete cleanup for i2c clientdata
  mfd: tps65910: Remove warning during dt node parsing
  mfd: lpc_sch: Ignore resource conflicts when adding mfd cells
  mfd: ti_am335x_tscadc: Avoid possible deadlock of reg_lock
  mfd: syscon: Return -ENOSYS if CONFIG_MFD_SYSCON is not enabled
  mfd: Add support for ams AS3722 PMIC
  mfd: max77693: Include linux/of.h header
  mfd: tc3589x: Detect the precise version
  mfd: omap-usb: prepare/unprepare clock while enable/disable
  mfd: max77686: Include linux/of.h header
  mfd: max8907: Include linux/of.h header
  mfd: max8997: Include linux/of.h header
  ...

mfd: Stop setting refcounting pointers in original mfd_cell arrays

2013-11-11T11:22:15+00:00

Commit 1e29af62f2b285bd18685da93c3ce8c33ca2d1db ("mfd: Add refcounting
support to mfd_cells") had to drop the "const" keyword on the "cell"
parameter of mfd_add_devices(), as it added the refcounting pointers
to the objects of the passed mfd_cell array itself.

However, the mfd core code operates on copies of the mfd_cell objects,
so there's no need to modify the originally passed objects.

Hence, move the setting of the refcounting pointers from mfd_add_devices()
to mfd_platform_add_cell(), where the copy of the mfd_cell objects is made.
mfd_clone_cell() can just pass (a copy of) the original usage_count
pointer.

This allows to make the "cell" parameter of mfd_add_devices() "const"
again, and avoids future race conditions when registering multiple
instances of the same device in parallel.

Signed-off-by: Geert Uytterhoeven 
Signed-off-by: Lee Jones