Commit Graph

369 Commits

Author SHA1 Message Date
Linus Walleij 0ad651c94c mfd: AB3100 disable irq nosync
This will make the worker fire interrupt disable the AB3100 IRQ
without sync which resolves a race since the interrupt obviously
cannot wait for itself to complete while being handled.

Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:47:18 +02:00
Linus Walleij ce290b0e86 mfd: AB3100 alter default setting
This alters the default setting for AB3100_IMRB1 from 0xff to
0xbf. These registers are used for the yet unimplemented ADC
and this new setting will deactivate ADC Trigger 1.

Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:47:17 +02:00
Linus Walleij 7cdc2b98ce mfd: AB3100 propagate error
This makes ab3100_set_register_interruptible() propagate the error
code from suboperations properly so it can be handles properly.
(A special case comes from signal interruption.)

Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:47:17 +02:00
Linus Walleij 956f25a677 mfd: AB3100 accessor function cleanups
This adds the _interruptible suffix to the AB3100 accessor
functions on par with mutex_lock_interruptible() that's used
for blocking simultaneous calls to the AB3100 acessor functions.
Since these accesses are slow on a 100kHz I2C bus and may line
up waiting for the mutex, we need to handle interruption by
system shutdown or kill signals and may just as well denote that
in the function names.

Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:47:15 +02:00
Mark Brown b11062b9c5 mfd: Hook WM831x into build system
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:47:00 +02:00
Mark Brown 698659d5f7 mfd: Export ISEL values from WM831x core
The current settings which can be used with the WM831x current sinks
can't easily be mapped between register values and currents at run
time without a lookup table since the values scale logarithmically
to match the way the human eye interprets brightness. This lookup
table is inclided in the core since several drivers need to use it.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:47:00 +02:00
Mark Brown 6704e5171b mfd: Add basic WM831x OTP support
The WM831x series of devices use OTP (One Time Programmable, a type
of PROM) to store system configuration. At run time this data is
visible via registers.

Currently the only explicitly supported feature is that the unique
ID provided by every WM831x device is exported to user space via
sysfs. Other configuration data may be read by system-specific
code in the pre_init() and post_init() platform data operations.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:46:59 +02:00
Mark Brown 63aed85e35 mfd: Conditionally add WM831x backlight subdevice
The WM831x backlight driver requires at least the specification of the
current sink to use and a maximum current to allow them to function and
will actively interfere with other users of the regulators it uses if
misconfigured so only register the subdevice for it if this platform
data has been supplied.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:46:58 +02:00
Mark Brown 7e9f9fd4b8 mfd: Add WM831x AUXADC support
The WM831x contains an auxiliary ADC with a number of switchable
inputs which is used to monitor some of the voltages and
temperatures in the system and has some external inputs which can be
used for machine specific purposes. Provide an API allowing drivers
to read values from the ADC.

An internal reference voltage is provided to allow callibration of
the ADC. This is used to calibrate the device at startup.

The hardware also supports continuous readings and digital comparators.
These are not yet supported by the driver.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:46:58 +02:00
Mark Brown 7d4d0a3e73 mfd: Add WM831x interrupt support
The WM831x includes an interrupt controller managing interrupts for
the various functions on the chip. This patch adds support for the
core interrupt block on the device.

Ideally this would be supported by genirq, particularly for the
GPIOs, but currently genirq is unable to cope with controllers on
interrupt driven buses so we cut'n'paste the generic interface.
Once genirq is able to cope chips like this it should be a case
of filing the prefixes off the code and redoing wm831x-irq.c to
move over.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:46:57 +02:00
Mark Brown d2bedfe7a8 mfd: Initial core support for WM831x series devices
The WM831x series of devices are register compatible processor power
management subsystems, providing regulator and power path management
facilities along with other services like watchdog, RTC and touch
panel controllers.

This patch adds very basic support, providing basic single register
I2C access, handling of the security key and registration of the
devices.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:46:57 +02:00
Mark Brown 3bed6e415f mfd: Allow multiple MFD cells with the same name
Provide basic support for MFDs having multiple cells of a given
type with different IDs by adding an id to the mfd_cell structure
and then adding that to the id passed in to mfd_add_devices().

As it stands this approach requires that MFDs using this feature
deal with ensuring that there aren't any ID collisions resulting
from multiple MFDs of the same type being instantiated. This needs
to happen with the existing code too, but with this approach there
is a knock on effect on the IDs for non-duplicated devices.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:46:56 +02:00
Antonio Ospite f078237bcf mfd: register ezx-pcap earlier
Register ezx-pcap earlier so it can be used with cpufreq

Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:46:56 +02:00
Vipin Bhandari 89a99e76f6 mfd: Correct ro and cd implemantion on DM355
This patch corrects the support for MMCSD card detection
and read only feature for SoC DM355.

EVMDM355_ECP_VA4.pdf, from Spectrum digital, suggests that
Bit 2 and 4 should be checked for card detection. However
on the EVM, bits 1 and 3 gives this status, for MMC/SD
instance 0 and 1 respectively. The pdf also suggests that
Bit 1 and 3 should be checked for write protection. However
on the EVM bits 2 and 4 gives this status.

This document can be downloaded from
http://c6000.spectrumdigital.com/evmdm355/reve/files/EVMDM355_ECP_VA4.pdf

Signed-off-by: Vipin Bhandari <vipin.bhandari@ti.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:46:54 +02:00
Paul Fertser bd8ef10261 mfd: revise locking for pcf50633 ADC
Current implementation is prone to races, this patch attempts to remove all
but one (in pcf50633_adc_sync_read).

The idea is that we need to guard the queue access only on inserting and
removing items. If we insert and there're no more items in the queue it
means that the last irq already happened and we need to trigger ADC
manually. If not, then the next conversion will be triggered by the irq
handler upon completion of the previous.

Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:46:53 +02:00
Paul Fertser ed52e62ebe mfd: use a dedicated workqueue for pcf50633 irq processing
Using the default kernel "events" workqueue causes problems with
synchronous adc readings if initiated from some task on the same
workqueue.

I had a deadlock trying to use pcf50633_adc_sync_read from a
power_supply class driver because the reading was initiated from the
workqueue and it waited for the irq processing to complete (to get the
result) and that was put on the same workqueue.

Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:46:53 +02:00
Felipe Balbi 9c3664ddce mfd: Add twl4030-pwrbutton as a twl4030 child
Make that twl4030-pwrbutton.c driver probe with current
child creation api for twl4030.

Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:46:52 +02:00
Mark Brown fb6c023a2b hwmon: Add WM835x PMIC hardware monitoring driver
This driver provides reporting of the status supply voltage rails
of the WM835x series of PMICs via the hwmon API.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:46:51 +02:00
Joe Perches df10d6465f mfd: remove unnecessary semicolons from twl4030
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:46:48 +02:00
Daniel Ribeiro e9a22635b0 mfd: add ezx_pcap_setbits
Provides an atomic set_bits functions, as needed by the pcap-regulator
driver.

Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:46:47 +02:00
Daniel Ribeiro b1148fd46c mfd: fix pcap irq bottom handler
Mask interrupts before servicing them and loop while pcap asserts the interrupt
line.

Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:46:47 +02:00
Daniel Ribeiro ecd78cbdb9 mfd: add set_ts_bits for pcap
Some TS controller bits are on the same register as the ADC control, save
TS specific bits and export a set_ts_bits function so the TS driver can set
it with the adc_mutex lock held.

Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:46:46 +02:00
Daniel Ribeiro 9f7b07d6cc mfd: Introduce irq_to_pcap()
Export an irq_to_pcap function to get pcap irq number, for the keypad driver.

Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:46:45 +02:00
Samuel Ortiz dfc3aa7221 mfd: fix ab3100 warning on x86_64
The file_operations write prototype should return a ssize_t.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:46:42 +02:00
Russell King 1cef8e4107 mfd: twl4030 irq fixes
The TWL4030 IRQ handler has a bug which leads to spinlock lock-up. It is
calling the 'unmask' function in a process context. :The mask/unmask/ack
functions are only designed to be called from the IRQ handler code,
or the proper API interfaces found in linux/interrupt.h.

Also there is no need to have IRQ chaining mechanism. The right way to
handle this is to claim the parent interrupt as a standard interrupt
and arrange for handle_twl4030_pih to take care of the rest of the devices.

Mail thread on this issue can be found at:
http://marc.info/?l=linux-arm-kernel&m=124629940123396&w=2

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-08-04 20:31:32 +02:00
Linus Torvalds 5e75c5f5d7 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: gpio_mouse - use standard driver registration method
  Input: mark serio and i8042 as suspended when hibernating too
  Input: add support for generic GPIO-based matrix keypad
  Input: arrange keyboards alphabetically
  Input: gpio-keys - avoid possibility of sleeping in timer function
  Input: gpio-keys - revert 'change timer to workqueue'
  Input: dm355evm_keys - fix kconfig symbol names
  Input: wacom - add DTF720a support and fix rotation on Intuos3
  Input: i8042 - more reset quirks for MSI Wind-clone netbooks
2009-07-08 09:32:41 -07:00
Daniel Ribeiro 1c90ea2c7e mfd: fix pcap adc locking
Release the lock on error.

Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-07-03 11:54:57 +02:00
Jiri Slaby 992bb253cd mfd: sm501, fix lock imbalance
Add omitted unlock in sm501_unit_power.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-07-03 11:54:50 +02:00
David Brownell 00b8ac409c Input: dm355evm_keys - fix kconfig symbol names
The keypad driver for the DM355 EVM got slightly broken as it merged,
since it moved from input/keyboard to input/misc and its Kconfig
symbol changed.  This patch copes with the changed Kconfig symbol.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-06-28 23:57:44 -07:00
Timo Kokkonen 80e45b1e9e [WATCHDOG] twl4030 watchdog driver
Implementation of twl4030 watchdog driver.

Signed-off-by: Timo Kokkonen <timo.t.kokkonen@nokia.com>
Signed-off-by: Atal Shargorodsky <ext-atal.shargorodsky@nokia.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2009-06-20 18:39:43 +00:00
Linus Torvalds 93db629495 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (35 commits)
  Input: add driver for Synaptics I2C touchpad
  Input: synaptics - add support for reporting x/y resolution
  Input: ALPS - handle touchpoints buttons correctly
  Input: gpio-keys - change timer to workqueue
  Input: ads7846 - pin change interrupt support
  Input: add support for touchscreen on W90P910 ARM platform
  Input: appletouch - improve finger detection
  Input: wacom - clear Intuos4 wheel data when finger leaves proximity
  Input: ucb1400 - move static function from header into core
  Input: add driver for EETI touchpanels
  Input: ads7846 - more detailed model name in sysfs
  Input: ads7846 - support swapping x and y axes
  Input: ati_remote2 - use non-atomic bitops
  Input: introduce lm8323 keypad driver
  Input: psmouse - ESD workaround fix for OLPC XO touchpad
  Input: tsc2007 - make sure platform provides get_pendown_state()
  Input: uinput - flush all pending ff effects before destroying device
  Input: simplify name handling for certain input handles
  Input: serio - do not use deprecated dev.power.power_state
  Input: wacom - add support for Intuos4 tablets
  ...
2009-06-20 10:17:02 -07:00
Samuel Ortiz 2021de874e mfd: early init for MFD running regulators
For MFDs running regulator cores, we really want them to be brought up early
during boot.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Mike Rapoport <mike@compulab.co.il>
2009-06-17 19:41:54 +02:00
Samuel Ortiz 4d3792e054 mfd: fix tmio related warnings
We can not have .driver_data as const since platform_set_drvdata() doesnt take
a const.
The hclk mmc_data field can be const though.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-06-17 19:41:52 +02:00
Philipp Zabel 09f05ce851 mfd: asic3: enable SD/SDIO cell
This enables the ASIC3's SD/SDIO MFD cell, supported by the tmio_mmc driver.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-06-17 19:41:50 +02:00
Philipp Zabel 9461f65a85 mfd: asic3: enable DS1WM cell
This enables the ASIC3's DS1WM MFD cell, supported by the ds1wm driver.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-06-17 19:41:48 +02:00
Philipp Zabel be584bd5a4 mfd: asic3: use resource_size macro instead of local variable
This should make the code a little bit easier to read.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-06-17 19:41:44 +02:00
Philipp Zabel e956a2a87c mfd: asic3: add clock handling for MFD cells
Since ASIC3 has to work on both PXA and S3C and since their
struct clk implementations differ, we can't register out
clocks with the clkdev mechanism (yet?).
For now we have to keep clock handling internal to this
driver and enable/disable the clocks via the
mfd_cell->enable/disable functions.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-06-17 19:41:41 +02:00
Philipp Zabel 6483c1b5e1 mfd: asic3: add asic3_set_register common operation
Used to configure single bits of the SDHWCTRL_SDCONF and EXTCF_RESET/SELECT
registers needed for DS1WM, MMC/SDIO and PCMCIA functionality.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-06-17 19:41:39 +02:00
Mark Brown 9e5aca58c2 mfd: Fix Kconfig help text for WM8350
More with the grammar.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-06-17 19:41:37 +02:00
Daniel Ribeiro 13a09f93d2 mfd: add PCAP driver
The PCAP Asic as present on EZX phones is a multi function device with
voltage regulators, ADC, touch screen controller, RTC, USB transceiver,
leds controller, and audio codec.

It has two SPI ports, typically one is connected to the application
processor and another to the baseband, this driver provides read/write
functions to its registers, irq demultiplexer and ADC
queueing/abstraction.

This chip is used on a lot of Motorola phones, it was manufactured by TI
as a custom product with the name PTWL93017, later this design evolved
into the ATLAS PMIC from Freescale (MC13783).

Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-06-17 19:41:35 +02:00
Linus Walleij 14fa56917d mfd: add U300 AB3100 core support
This adds a core driver for the AB3100 mixed-signal circuit
found in the ST-Ericsson U300 series platforms. This driver
is a singleton proxy for all accesses to the AB3100
sub-drivers which will be merged on top of this one, RTC,
regulators, battery and system power control, vibrator,
LEDs, and an ALSA codec.

Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Reviewed-by: Mike Rapoport <mike@compulab.co.il>
Reviewed-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-06-17 19:41:34 +02:00
Thomas Gleixner 516eca2726 drivers/mfd: remove obsolete irq_desc_t typedef
The defines and typedefs (hw_interrupt_type, no_irq_type, irq_desc_t) have
been kept around for migration reasons.  After more than two years it's
time to remove them finally.

This patch cleans up one of the remaining users.  When all such patches
hit mainline we can remove the defines and typedefs finally.

Impact: cleanup

Convert the last remaining users and remove the typedef.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-06-17 19:41:32 +02:00
Adrian Bunk 1346a1c716 mfd/pcf50633-gpio.c: add MODULE_LICENSE
Add the missing MODULE_LICENSE("GPL").

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Balaji Rao <balajirrao@openmoko.org>
Cc: Andy Green <andy@openmoko.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-06-17 19:41:30 +02:00
Mark Brown 422a6a7909 mfd: Mark WM8350 mask revision as readable to match silicon
No impact unless someone has written additional kernel code.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-06-17 19:41:29 +02:00
Rakib Mullick 04ffa1316b mfd: Mark clocks_init as non-init in twl4030-core.c
Impact: Fix section mismatch.

clocks_init() has been called from twl4030_probe() which is a non-init
function. Since probing can be done anytime so clocks_init will be
called anytime too. So we mark clock_init() as non-init.

LD      drivers/mfd/built-in.o
WARNING: drivers/mfd/built-in.o(.text+0x8dd9): Section mismatch in
reference from the function twl4030_probe() to the function
.init.text:clocks_init()
The function twl4030_probe() references
the function __init clocks_init().
This is often because twl4030_probe lacks a __init
annotation or the annotation of clocks_init is wrong.

Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-06-17 19:41:27 +02:00
Mark Brown 489bd34e76 mfd: Correct readability of WM8350 register 227
This includes the USB current limit status override which is used in the
power management driver.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-06-17 19:41:26 +02:00
Greg Kroah-Hartman 1902a9e62b mfd: remove driver_data direct access of struct device
In the near future, the driver core is going to not allow direct access
to the driver_data pointer in struct device.  Instead, the functions
dev_get_drvdata() and dev_set_drvdata() should be used.  These functions
have been around since the beginning, so are backwards compatible with
all older kernel versions.

Cc: Samuel Ortiz <sameo@linux.intel.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:30:27 -07:00
Philipp Zabel f0e46cc497 MFD,mmc: tmio_mmc: make HCLK configurable
The Toshiba parts all have a 24 MHz HCLK, but HTC ASIC3 has a 24.576 MHz HCLK
and AMD Imageon w228x's HCLK is 80 MHz. With this patch, the MFD driver
provides the HCLK frequency to tmio_mmc via mfd_cell->driver_data.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Acked-by: Ian Molton <ian@mnementh.co.uk>
Acked-by: Samuel Ortiz <sameo@openedhand.com>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
2009-06-13 22:42:59 +02:00
Dmitry Torokhov 4894e4aca8 Merge commit 'v2.6.30' into next 2009-06-11 01:58:01 -07:00
Sebastian Andrzej Siewior cbf806dd93 Input: ucb1400 - move static function from header into core
it's a little too large for static line.
The ts is currently the only mainline user but Marek Vasut claims that
there is a battery driver in an ARM tree which also needs this function.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-05-27 06:25:05 -07:00
Nelson Castillo f43ab90100 mfd: pcf50633: fix unsafe disable_irq()
Without this change Openmoko Freerunner (GTA02) bootstrap will deadlock.
As pointed out in other patches this issue is in the wild since the merge
of:

: commit 3aa551c9b4
: Author: Thomas Gleixner <tglx@linutronix.de>
: Date:   Mon Mar 23 18:28:15 2009 +0100
:
:    genirq: add threaded interrupt handler support
:
:    Add support for threaded interrupt handlers

Signed-off-by: Nelson Castillo <arhuaco@freaks-unidos.net>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: <balajirrao@openmoko.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-05-19 22:22:28 +02:00
Mark Brown b126d11348 mfd: Keep a cache of WM8350 volatile values
Due to the way that the WM8350 audio driver handles CODEC_ENA many of
the WM8350 audio registers are marked as volatile when they aren't
actually so. Allow the audio driver to see a cache of these values for
inspection during interrupt context.

To do this we need to stop satisfying any bits from volatile registers
from cache - there's no real benefit from doing so anyway, we did the
read already.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-05-19 22:22:28 +02:00
Samuel Ortiz fa15ce8ad5 mfd: fix da903x warning
The da903x interrupt handler is retruning an int instead of an irqreturn_t.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-04-05 00:32:25 +02:00
Mark Brown f3df0b7533 mfd: Use the value of the final spin when reading the AUXADC
Reverse the order of the tests for loop exit so we use a valid value
before we time out.  Vanishingly unlikely to happen since we retry for
several times the expected conversion time.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-04-05 00:32:24 +02:00
Tobias Klauser 3446d4bb93 mfd: Storage class should be before const qualifier
The C99 specification states in section 6.11.5:

The placement of a storage-class specifier other than at the beginning
of the declaration specifiers in a declaration is an obsolescent
feature.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-04-05 00:32:23 +02:00
Philipp Zabel 47c10edd71 mfd: PASIC3: supply clock_rate to DS1WM via driver_data
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-04-05 00:32:23 +02:00
Philipp Zabel 0254a8f496 mfd: convert PASIC3 to use MFD core
This patch makes htc-pasic3 register the DS1WM and LED cell drivers
through the MFD core infrastructure instead of allocating the platform
devices manually. It also calculates the bus_shift parameter from the
memory resource size.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-04-05 00:32:21 +02:00
Mark Brown 3206450355 mfd: Support active high IRQs on WM835x
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-04-05 00:32:20 +02:00
Mark Brown 9dfd338198 mfd: Use bulk read to fill WM8350 register cache
Some I2C controllers have high overheads for setting up I2C operations
which makes the register cache setup on startup excessively slow since
it does a lot of small transactions. Reduce this overhead by doing a
bulk read of the entire register bank and filtering out what we don't
need later.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-04-05 00:32:19 +02:00
Huang Weiyi 22e2df7d5f mfd: remove duplicated #include from pcf50633
Removed duplicated #include <linux/device.h> in
  drivers/mfd/pcf50633-core.c

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-04-05 00:32:19 +02:00
Linus Torvalds 811158b147 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (28 commits)
  trivial: Update my email address
  trivial: NULL noise: drivers/mtd/tests/mtd_*test.c
  trivial: NULL noise: drivers/media/dvb/frontends/drx397xD_fw.h
  trivial: Fix misspelling of "Celsius".
  trivial: remove unused variable 'path' in alloc_file()
  trivial: fix a pdlfush -> pdflush typo in comment
  trivial: jbd header comment typo fix for JBD_PARANOID_IOFAIL
  trivial: wusb: Storage class should be before const qualifier
  trivial: drivers/char/bsr.c: Storage class should be before const qualifier
  trivial: h8300: Storage class should be before const qualifier
  trivial: fix where cgroup documentation is not correctly referred to
  trivial: Give the right path in Documentation example
  trivial: MTD: remove EOL from MODULE_DESCRIPTION
  trivial: Fix typo in bio_split()'s documentation
  trivial: PWM: fix of #endif comment
  trivial: fix typos/grammar errors in Kconfig texts
  trivial: Fix misspelling of firmware
  trivial: cgroups: documentation typo and spelling corrections
  trivial: Update contact info for Jochen Hein
  trivial: fix typo "resgister" -> "register"
  ...
2009-04-03 15:24:35 -07:00
David Brownell 52914eaa49 twl4030-regulator: expose VPLL2
Add VPLL2 to the set of twl4030-family regulators exposed for
use by various drivers.  It's commonly used to power the digital
video outputs (e.g. LCD or DVI displays) on OMAP3 systems.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-03-31 09:56:28 +01:00
Matt LaPlante 692105b8ac trivial: fix typos/grammar errors in Kconfig texts
Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-03-30 15:22:01 +02:00
Kay Sievers b2bf61f23f mfd: struct device - replace bus_id with dev_name(), dev_set_name()
Cc: sameo@openedhand.com
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
2009-03-24 16:38:23 -07:00
Mark Brown 02d46e07e5 mfd: add support for WM8351 revision B
No software visible difference from revision A.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Samuel Ortiz <sameo@openedhand.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-12 16:20:24 -07:00
Rakib Mullick dcd9651ecd mfd: Fix sm501_register_gpio section mismatch
WARNING: drivers/mfd/built-in.o(.text+0x1706): Section mismatch in
reference from the function sm501_register_gpio() to the function
.devinit.text:sm501_gpio_register_chip()
The function sm501_register_gpio() references
the function __devinit sm501_gpio_register_chip().
This is often because sm501_register_gpio lacks a __devinit
annotation or the annotation of sm501_gpio_register_chip is wrong.

Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-02-17 09:48:05 +01:00
Alexey Dobriyan 158abca5f6 mfd: fix sm501 section mismatches
drv => driver renaming is needed otherwise modpost will spit false positives
re pointing to __devinit function from regular data.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-02-17 09:10:19 +01:00
Jean Delvare 8915e54028 mfd: terminate pcf50633 i2c_device_id list
The i2c_device_id list is supposed to be zero-terminated.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Balaji Rao <balajirrao@openmoko.org>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2009-02-17 09:07:02 +01:00
Mark Brown 2f161f4485 mfd: Ensure all WM8350 IRQs are masked at startup
The IRQs might have been left enabled in hardware, generating spurious
IRQs before the drivers have registered.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-02-17 09:00:14 +01:00
Philipp Zabel 9427c34bc7 mfd: fix htc-egpio iomem resource handling using resource_size
Fixes an off-by-one error in the iomem resource mapping.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-02-17 09:00:14 +01:00
Mark Brown a313d758cc mfd: Fix TWL4030 build on some ARM variants
Many ARM platforms do not provide a mach/cpu.h so rather than guarding
the use of that header with CONFIG_ARM guard it with the guards used
when testing for the OMAP variants in the body of the code.

Signed-off-by: Mark Brown <broonie@sirena.org.uk>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-02-17 09:00:13 +01:00
Roel Kluin 29c6a2e6f8 mfd: wm8350 tries reaches -1
With a postfix decrement tries will reach -1 rather than 0,
so the warning will not be issued even upon timeout.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-02-17 09:00:13 +01:00
Mark Brown a39a021fd7 mfd: Mark WM835x USB_SLV_500MA bit as accessible
The code is out of sync with the silicon.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-02-17 09:00:13 +01:00
Mark Brown 85c93ea7dc mfd: Improve diagnostics for WM8350 ID register probe
Check the return value of the device I/O functions when reading the
ID registers so we can provide a more useful diagnostic when we're
having trouble talking to the device.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-02-17 09:00:12 +01:00
Mark Brown 62571c29a8 mfd: Initialise WM8350 interrupts earlier
Ensure that the interrupt handling is configured before we do platform
specific init. This allows the platform specific initialisation to
configure things which use interrupts safely.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-02-17 09:00:11 +01:00
Julia Lawall 720fd66dfa mfd: Fix egpio kzalloc return test
Since ei is already known to be non-NULL, I assume that what was intended
was to test the result of kzalloc.

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-02-17 09:00:10 +01:00
Balaji Rao 9e6f8ed7c3 mfd: Remove non exported references from pcf50633
Remove references to set_irq_type and handle_level_irq which are not exported
to modules

Signed-off-by: Balaji Rao <balajirrao@openmoko.org>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-15 11:50:58 +01:00
Linus Torvalds b9a0d06a35 Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
  TWL4030: fix clk API usage
  [ARM] 5364/1: allow flush_ioremap_region() to be used from modules
  [ARM] w90x900: fix build errors and warnings
  [ARM] i.MX add missing include
  [ARM] i.MX: fix breakage from commit 278892736e
  [ARM] i.MX: remove LCDC controller register definitions from imx-regs.h
2009-01-13 14:52:35 -08:00
Russell King e6b50c8d58 TWL4030: fix clk API usage
Always pass a struct device if one is available; and there's really
no reason for the processor specific stuff in this file if only
people would follow the API usage properly by using the struct device.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-13 19:39:11 +00:00
Samuel Ortiz b29c06ae96 mfd: Fix twl4030-core build
Fixes:
drivers/mfd/twl4030-core.c:657: error: implicit declaration of function
'cpu_is_omap2430'

Not the nicest fix, but this should be improved by a better OMAP clock API
implementation.

Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-11 01:34:25 +01:00
Ben Dooks 98325f8f8e mfd: Ensure sm501 GPIO pin mode is GPIO when configured
When setting an GPIO to either input or output, we
should ensure that the pin configuration elsewhere
in the chip is set to GPIO in-case the initial
setup has not been done correctly.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-11 01:34:25 +01:00
David Brownell d1fdb4f6fb mfd: dm355 evm MMC/SD card detection
Support card detect and writeprotect switches on DM355 EVM.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-11 01:34:25 +01:00
Balaji Rao 6a3d119b4c mfd: PCF50633 gpio support
What the PCF05633 calls as a 'GPIO' is much more than the GPIO in the linux
sense and there are only 4 of them - which means, the gpiolib is not used
here.

Signed-off-by: Balaji Rao <balajirrao@openmoko.org>
Cc: Andy Green <andy@openmoko.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-11 01:34:24 +01:00
Balaji Rao 08c3e06a5e mfd: PCF50633 adc driver
This patch adds basic support for the PCF50633 ADC. The subtractive mode
is not supported yet.

Since we don't have adc subsystem, it currently lives in drivers/mfd.

Signed-off-by: Balaji Rao <balajirrao@openmoko.org>
Cc: Andy Green <andy@openmoko.com>
Acked-by: Jonathan Cameron <jonathan.cameron@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-11 01:34:23 +01:00
Balaji Rao f52046b14b mfd: PCF50633 core driver
This patch implements the core of the PCF50633 driver. This core driver has
generic register read/write functions and does interrupt management for its
sub devices.

Signed-off-by: Balaji Rao <balajirrao@openmoko.org>
Cc: Andy Green <andy@openmoko.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-11 01:34:23 +01:00
Mark Brown 0081e8020e leds: Add WM8350 LED driver
The voltage and current regulators on the WM8350 AudioPlus PMIC can be
used in concert to provide a power efficient LED driver.  This driver
implements support for this within the standard LED class.

Platform initialisation code should configure the LED hardware in the
init callback provided by the WM8350 core driver.  The callback should
use wm8350_isink_set_flash(), wm8350_dcdc25_set_mode() and
wm8350_dcdc_set_slot() to configure the operating parameters of the
regulators for their hardware and then then use wm8350_register_led() to
instantiate the LED driver.

This driver was originally written by Liam Girdwood, though it has been
extensively modified since then.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-01-08 12:38:58 +00:00
Mark Brown 3f874b6643 mfd: Fix section mismatch in da903x
The subdevice removal functions are marked __devexit but are referenced
from the error handling path when probing so are needed even when
__devexit functions are removed.

Signed-off-by: Mark Brown <broonie@sirena.org.uk>
Acked-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 15:31:49 +01:00
David Brownell 88e75cc347 mfd: move drivers/i2c/chips/menelaus.c to drivers/mfd
ove the menelaus driver from drivers/i2c/chips to drivers/mfd
since it's more of a multi-function device than anything else,
and since Jean is trying to vanish drivers/i2c/chips ASAP.

One way to think of these chips are as the PMIC family most
used with OMAP2 generation chips.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:44 +01:00
David Brownell 87c13493e6 mfd: move drivers/i2c/chips/tps65010.c to drivers/mfd
Move the tps65010 driver from drivers/i2c/chips to drivers/mfd
since it's more of a multi-function device than anything else,
and since Jean is trying to vanish drivers/i2c/chips ASAP.

One way to think of these chips are as the PMIC family most
used with OMAP1 generation chips.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:43 +01:00
David Brownell 0931a4c6db mfd: dm355evm msp430 driver
Basic MFD framework for the MSP430 microcontroller firmware used
on the dm355evm board:

 - Provides an interface for other drivers: register read/write
   utilities, and register declarations.

 - Directly exports:
     * Many signals through the GPIO framework
         + LEDs
         + SW6 through gpio sysfs
	 + NTSC/nPAL jumper through gpio sysfs
	 + ... more could be added later, e.g. MMC signals
     * Child devices:
	+ LEDs, via leds-gpio child (and default triggers)
	+ RTC, via rtc-dm355evm child device
	+ Buttons and IR control, via dm355evm_keys

 - Supports power-off system call.  Use the reset button to power
   the board back up; the power supply LED will be on, but the
   MSP430 waits to re-activate the regulators.

 - On probe() this:
     * Announces firmware revision
     * Turns off the banked LEDs
     * Exports the resources noted above
     * Hooks the power-off support
     * Muxes tvp5146 -or- imager for video input

Unless the new tvp514x driver (tracked for mainline) is configured,
this assumes that some custom imager driver handles video-in.

This completely ignores the registers reporting the output voltages
on the various power supplies.  Someone could add a hwmon interface
if that seems useful.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:43 +01:00
Mark Brown 4331bb3233 mfd: Add missing break from wm3850-core
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:43 +01:00
Mark Brown ca23f8c1b0 mfd: Add WM8351 support
The WM8351 is a WM8350 variant. As well as register default changes the
WM8351 has fewer voltage and current regulators than the WM8350.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:42 +01:00
Mark Brown 645524a9c6 mfd: Support configurable numbers of DCDCs and ISINKs on WM8350
Some WM8350 variants have fewer DCDCs and ISINKs. Identify these at
probe and refuse to use the absent DCDCs when running on these chips.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:42 +01:00
Mark Brown 53a0d99b1e mfd: Handle missing WM8350 platform data
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:42 +01:00
Mark Brown 9692063062 mfd: Add WM8352 support
The WM8352 is a variant of the WM8350. Aside from the register defaults
there are no software visible differences to the WM8350.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:42 +01:00
Samuel Ortiz 94964f96a6 mfd: Use irq_to_desc in twl4030 code
The global irq_desc array is soon going to be accessible only with
!CONFIG_SPARSE_IRQ. We should start using the generic irq_to_desc()
routines instead.

Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:42 +01:00
Mike Rapoport 856f6fd119 mfd: Dialog DA9030 battery charger MFD driver
This patch amends DA903x MFD driver with definitions and methods
needed for battery charger driver.

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:41 +01:00
Mark Brown b8380c1a66 mfd: Register WM8400 codec device
Register a child device for the codec in the WM8400.

Also switch the unregistration of the MFD devices to use the MFD core
since the current code is hand rolling the same thing.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:41 +01:00
Mark Brown 44faac3155 mfd: Pass driver_data onto child devices
The MFD cell structure provides a driver_data field but doesn't pass it
on to the child devices when instantiating them - do that.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:41 +01:00
Samuel Ortiz 6354ab5c63 mfd: Fix twl4030-core.c build error
This is a fix for:

twl4030-core.c:(.text+0x16a797): undefined reference to `clk_get_rate'
twl4030-core.c:(.text+0x16a797): undefined reference to `clk_put'

on x86 and x86_64, as the clock API is not defined on those platforms.

Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:40 +01:00
David Brownell b73eac7871 mfd: twl4030 regulator bug fixes
This contains two bugfixes to the initial twl4030 regulator
support patch related to USB:

 (a) always overwrite the old list of consumers ... else
     the regulator handles all use the same "usb1v5" name;
 (b) don't set up the "usbcp" regulator, which turns out
     to be managed through separate controls, usually ULPI
     directly from the OTG controller.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:40 +01:00
David Brownell dad759ff8b mfd: twl4030: create some regulator devices
Initial code to create twl4030 voltage regulator devices, using
the new regulator framework.  Note that this now starts to care
what name is used to declare the TWL chip:

 - TWL4030 is the "old" chip; newer ones have a bigger variety
   of VAUX2 voltages.

 - TWL5030 is the core "new" chip; TPS65950 is its catalog version.

 - The TPS65930 and TPS65920 are cost-reduced catalog versions of
   TWL5030 parts ... fewer regulators, no battery charger, etc.

Board-specific regulator configuration should be provided, listing
which regulators are used and their constraints (e.g. 1.8V only).

Code that could ("should"?) leverage the regulator stuff includes
TWL4030 USB transceiver support and MMC glue, LCD support for the
3430SDP and Labrador boards, and S-Video output.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:39 +01:00
David Brownell 67460a7c26 mfd: twl4030: cleanup symbols and OMAP dependency
Finish removing dependency of TWL driver stack on platform-specific
IRQ definitions ... and remove the build dependency on OMAP.

This lets the TWL4030 code be included in test builds for most
platforms, and will make it easier for non-OMAP folk to update
most of this code for new APIs etc.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:39 +01:00
David Brownell 5725d66b9d mfd: twl4030: simplified child creation code
Minor cleanup to twl4030-core: define a helper function to populate
a single child node, and use it to replace six inconsistent versions
of the same logic.  Both object and source code shrink.

As part of this, some devices now have more IRQ resources:  battery
charger, keypad, ADC, and USB transceiver.  That helps to remove some
irq #defines that block the children's drivers code from compiling on
non-OMAP platforms.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:39 +01:00
Mark Brown 4008e879e1 power_supply: Add battery health reporting for WM8350
Implement support for reporting battery health in the WM8350 battery
interface. Since we are now able to report this via the classs remove
the diagnostics from the interrupt handler.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Anton Vorontsov <cbouatmailru@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:39 +01:00
Mark Brown b797a55519 mfd: Refactor WM8350 chip identification
Since the WM8350 driver was originally written the semantics for the
identification registers of the chip have been clarified, allowing
us to do an exact match on all the fields. This avoids mistakenly
running on unsupported hardware.

Also change to using the datasheet names more consistently for
legibility and fix a printk() that should be dev_err().

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:39 +01:00
Mark Brown d756f4a444 mfd: Switch WM8350 revision detection to a feature based model
Rather than check for chip revisions in the WM8350 drivers have the core
code set flags for relevant differences.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:38 +01:00
David Brownell 3fba19ec1a mfd: allow reading entire register banks on twl4030
Minor change to the TWL4030 utility interface:  support reads
of all 256 bytes in each register bank (vs just 255).  This
can help when debugging, but is otherwise a NOP.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:38 +01:00
Mark Brown 6748852634 mfd: Add AUXADC support for WM8350
The auxiliary ADC in the WM8350 is shared between several subdevices
so access to it needs to be arbitrated by the core driver.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:38 +01:00
Mark Brown 0c8a601678 mfd: Add WM8350 revision H support
No other software changes are required.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:38 +01:00
Mark Brown 858e674466 mfd: Add some documentation for WM8350 register lock
Hopefully this will make the purpose of these functions a bit clearer,
it's not immediately obvious that the lock is a hardware feature.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:37 +01:00
Mark Brown 2c5212279a mfd: Remove i.MX31ism from WM8350 i2c driver
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:37 +01:00
Mark Brown 6cd99b7828 mfd: Don't mark WM8350 security register as volatile
There's no need to read this back from the chip each time.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-04 12:17:37 +01:00
Russell King dcea83adc6 [ARM] Hide ISA DMA API when ISA_DMA_API is unset
When ISA_DMA_API is unset, we're not implementing the ISA DMA API,
so there's no point in publishing the prototypes via asm/dma.h, nor
including the machine dependent parts of that API.

This allows us to remove a lot of mach/dma.h files which don't contain
any useful code.  Unfortunately though, some platforms put their own
private non-ISA definitions into mach/dma.h, so we leave these behind
and fix the appropriate #include statments.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-29 18:42:40 +00:00
Russell King 59f0cb0fdd [ARM] remove memzero()
As suggested by Andrew Morton, remove memzero() - it's not supported
on other architectures so use of it is a potential build breaking bug.
Since the compiler optimizes memset(x,0,n) to __memzero() perfectly
well, we don't miss out on the underlying benefits of memzero().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-27 12:37:59 +00:00
Mark Brown 898d8054ec mfd: Correct WM8350 I2C return code usage
The vendor BSP used for the WM8350 development provided an I2C driver
which incorrectly returned zero on succesful sends rather than the
number of transmitted bytes, an error which was then propagated into the
WM8350 I2C accessors.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-11-16 19:58:47 +01:00
Mike Rapoport b1ccbdc4a2 mfd: fix event masking for da9030
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Acked-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-11-16 19:58:45 +01:00
Al Viro 9ca68233f2 missing dependencies on HAVE_CLK in drivers/mfd
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-01 12:40:38 -07:00
Mark Brown 9c366452e0 mfd: Make WM8400 depend on I2C until SPI is submitted
Otherwise we could build in WM8400 but not I2C.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-10-24 18:34:39 +02:00
Samuel Ortiz 8e2eaabfd9 mfd: add missing Kconfig entry for da903x
This one was accidentally left out during the rc1 mfd merge.

Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-10-24 18:34:27 +02:00
Roel Kluin 7cf5244ce4 mfd: check for platform_get_irq() return value in sm501
sm501_devdata->irq is unsigned, while platform_get_irq() returns a
signed int.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-10-22 01:39:55 +02:00
Arjan van de Ven 7ab18995e1 mfd: use pci_ioremap_bar() in sm501
Use the newly introduced pci_ioremap_bar() function in drivers/mfd.
pci_ioremap_bar() just takes a pci device and a bar number, with the goal
of making it really hard to get wrong, while also having a central place
to stick sanity checks.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-10-22 01:21:24 +02:00
Mark Brown e76f7558d8 mfd: Don't store volatile bits in WM8350 register cache
This makes the contents of the cache clearer and fixes incorrect
initialisation of the cache for partially volatile registers.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-10-22 01:19:40 +02:00
Stephen Rothwell 799f9e3267 mfd: don't export wm3850 static functions
October 10th linux-next build (powerpc allyesconfig) failed like this:

drivers/mfd/wm8350-core.c:1131: error: __ksymtab_wm8350_create_cache causes a section type conflict

Caused by commit 89b4012bef ("mfd: Core
support for the WM8350 AudioPlus PMIC"). wm8350_create_cache is not used
elsewhere, so remove the EXPORT_SYMBOL.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-10-22 01:19:39 +02:00
David Brownell a30d46c042 mfd: twl4030 IRQ handling update
- Move it into a separate file; clean and streamline it
 - Restructure the init code for reuse during secondary dispatch
 - Support both levels (primary, secondary) of IRQ dispatch
 - Use a workqueue for irq mask/unmask and trigger configuration

Code for two subchips currently share that secondary handler code.
One is the power subchip; its IRQs are now handled by this core,
courtesy of this patch.  The other is the GPIO module, which will
be supported through a later patch.

There are also minor changes to the header file, mostly related
to GPIO support; nothing yet in mainline cares about those.  A
few references to OMAP-specific symbols are disabled; when they
can all be removed, the TWL4030 support ceases being OMAP-specific.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-10-22 01:19:37 +02:00
Linus Torvalds 9301975ec2 Merge branch 'genirq-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
This merges branches irq/genirq, irq/sparseirq-v4, timers/hpet-percpu
and x86/uv.

The sparseirq branch is just preliminary groundwork: no sparse IRQs are
actually implemented by this tree anymore - just the new APIs are added
while keeping the old way intact as well (the new APIs map 1:1 to
irq_desc[]).  The 'real' sparse IRQ support will then be a relatively
small patch ontop of this - with a v2.6.29 merge target.

* 'genirq-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (178 commits)
  genirq: improve include files
  intr_remapping: fix typo
  io_apic: make irq_mis_count available on 64-bit too
  genirq: fix name space collisions of nr_irqs in arch/*
  genirq: fix name space collision of nr_irqs in autoprobe.c
  genirq: use iterators for irq_desc loops
  proc: fixup irq iterator
  genirq: add reverse iterator for irq_desc
  x86: move ack_bad_irq() to irq.c
  x86: unify show_interrupts() and proc helpers
  x86: cleanup show_interrupts
  genirq: cleanup the sparseirq modifications
  genirq: remove artifacts from sparseirq removal
  genirq: revert dynarray
  genirq: remove irq_to_desc_alloc
  genirq: remove sparse irq code
  genirq: use inline function for irq_to_desc
  genirq: consolidate nr_irqs and for_each_irq_desc()
  x86: remove sparse irq from Kconfig
  genirq: define nr_irqs for architectures with GENERIC_HARDIRQS=n
  ...
2008-10-20 13:23:01 -07:00
Andrew Morton 5a49a540df mfd: ucb1400 needs GPIO
ia64 allmodconfig:

In file included from include/linux/ucb1400.h:27,
                 from drivers/mfd/ucb1400_core.c:24:
include/asm-generic/gpio.h: In function `gpio_get_value_cansleep':
include/asm-generic/gpio.h:147: error: implicit declaration of function `gpio_get_value'
include/asm-generic/gpio.h: In function `gpio_set_value_cansleep':
include/asm-generic/gpio.h:153: error: implicit declaration of function `gpio_set_value'
drivers/mfd/ucb1400_core.c: At top level:

Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2008-10-19 22:54:13 +02:00
Randy Dunlap e483180254 mfd: ucb1400 sound driver uses/depends on AC97_BUS:
ERROR: "ac97_bus_type" [drivers/mfd/ucb1400_core.ko] undefined!

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2008-10-19 22:54:13 +02:00
Mark Brown c7752351c3 mfd: Don't use NO_IRQ in WM8350
NO_IRQ is only defined on some architectures - the general way to test
for an invalid IRQ in the modern kernel is by comparing with zero.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-10-19 22:54:12 +02:00
Ian Molton 7acb706ca9 mfd: update TMIO drivers to use the clock API
This patch updates the remaining two TMIO drivers to use the clock API
rather than callback hooks into platform code.

Signed-off-by: Ian Molton <spyro@f2s.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-10-19 22:54:12 +02:00
David Brownell 9297a0e7e0 mfd: twl4030-core irq simplification
Simplify twl4030 IRQ handling by removing a needless custom flow
handler.  The top level IRQs, from the PIH, are well suited for
handle_simple_irq() ... they can't be acked or masked.

Switching resolves some issues with how IRQs were dispatched.
Notably, abuse of desc->status, IRQ accounting, and handling
of various faults.

In short, use standard genirq code.

Drivers that request_irq() to the PIH will need to pay more
attention to things like setting IRQF_DISABLED (since it's
no longer ignored), and making I2C calls from handlers (you'll
need a lockdep workaround).

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-10-19 22:54:11 +02:00
Eric Miao 26b8f5e1e2 mfd: add base support for Dialog DA9030/DA9034 PMICs
DA9030 (a.k.a ARAVA) and DA9034 (a.k.a MICCO) are PMICs designed by
Dialog Semiconductor, usually found on PXA-based platforms. These
PMICs are I2C-based, multi-function devices, usually with LEDs, PWMs
for backlight, BUCKs and LDOs, ADCs and touchscreen controller (on
DA9034).

This is the base support for the I2C operations, event registration
and handling, sub-devices management.

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Liam Girdwood <lrg@kernel.org>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-10-19 22:54:11 +02:00
David Brownell a603a7fa87 mfd: TWL4030 core driver
This patch adds the core of the TWL4030 driver, which supports
chips including the TPS65950.  These chips are multi-function; see

  http://focus.ti.com/docs/prod/folders/print/tps65950.html

Public specs are in the works.  For now, the block diagram on
the second page of the datasheet is fairly informative.

There are some known issues with this core code.  Most notably,
the IRQ dispatching needs simplification (to use more of genirq),
generalization (integrating support for secondary IRQ dispatch
as well as primary, and removing the build dependency on OMAP),
and then probably updating to leverage threaded IRQ support
(expected to arrive in mainline "soon").

Once the core is in mainline, drivers for other parts of this
chip can follow its lead and start swimming upstream too.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-10-19 22:54:11 +02:00
Dmitry Baryshkov 9e78cfe53f mfd: support tmiofb cell on tc6393xb
Add support for tmiofb cell found in tc6393xb chip.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Cc: Ian Molton <spyro@f2s.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-10-19 22:54:11 +02:00
Dmitry Baryshkov 51a5562356 mfd: add OHCI cell to tc6393xb
Add information regarding OHCI cell of the tc6393xb

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Acked-by: Ian Molton <spyro@f2s.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-10-19 22:54:10 +02:00
Samuel Ortiz 504f97f884 mfd: Fix htc-egpio compile warning
resource_size_t can be a 64 bits value. Since this is just a printk, we'll
cast it to a u32.

Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-10-19 22:54:10 +02:00
Dmitry Baryshkov f98a0bd0e4 mfd: do tcb6393xb state restore on resume only if requested
As requested by Ian make state restore only if it's requested
by platform data: some platforms do correctly save the state of
the chip during suspend/resume, but some (like tosa) incorrectly
power off the chip at suspend, so the driver supports restoring
some bits of the tc6393xb state (not full, merely enough to support
resume on tosa). With this patch this code is disabled by default.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Acked-by: Ian Molton <spyro@f2s.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-10-19 22:54:10 +02:00
Dmitry Baryshkov 1c1b6ffce5 mfd: provide and use setup hook for tc6393xb
Instead of using bitfields for initial gpio setup,
provide generic setup/teardown hooks that can be used
to set the gpio states, register child devices, etc.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-10-19 22:54:09 +02:00
Ben Dooks 80e74a805f mfd: update sm501 debugging/low information messages
Make the default output of the SM501 driver to be less noisy wrt to
message that have low informational value, or simply should be debug.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-10-19 22:54:09 +02:00
Ian Molton a87903f3b4 mfd: reduce stack usage in mfd-core.c
This patch moves the allocation of the resources off the stack in
mfd_add_device().

Signed-off-by: Ian Molton <spyro@f2s.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-10-19 22:54:09 +02:00
Yinghai Lu 08678b0841 generic: sparse irqs: use irq_desc() together with dyn_array, instead of irq_desc[]
add CONFIG_HAVE_SPARSE_IRQ to for use condensed array.
Get rid of irq_desc[] array assumptions.

Preallocate 32 irq_desc, and irq_desc() will try to get more.

( No change in functionality is expected anywhere, except the odd build
  failure where we missed a code site or where a crossing commit itroduces
  new irq_desc[] usage. )

v2: according to Eric, change get_irq_desc() to irq_desc()

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16 16:52:29 +02:00
Mark Brown caf1859199 mfd: Fix warning in WM8350
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Samuel Ortiz <sameo@openedhand.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2008-10-13 21:51:57 +01:00
Mark Brown add41cb461 mfd: Add placeholders for WM8350 client devices
In order to avoid merge problems further down the line add placeholders
for several of the WM8350 client devices and register them, otherwise
the patches adding the client devices will all try to update the same
code.

Also remove redundant checks for null regulator platform devices while
we're at it.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Samuel Ortiz <sameo@openedhand.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2008-10-13 21:51:57 +01:00
Mark Brown 9201d38b97 mfd: Add WM8350 subdevice registration helper
Most of the subdevices for the WM8350 code are registered in the same
fashion so factor out the code to do the initial registration.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Samuel Ortiz <sameo@openedhand.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2008-10-13 21:51:56 +01:00
Mark Brown da09155ac8 regulator: Add WM8350 regulator support
The WM8350 features six DCDC convertors (four buck and two boost), four
LDO voltage regulators and two constant current sinks. This driver adds
support for these through the regulator API.

This driver was written by Liam Girdwood with updates for submission
from Mark Brown.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2008-10-13 21:51:56 +01:00
Mark Brown ebccec0fa4 mfd: Add WM8350 interrupt support
The WM8350 has an interrupt line to the CPU which is shared by the
devices on the CPU. This patch adds support for the interrupt
controller within the WM8350 which identifies which identifies the
interrupt cause. In common with other similar chips this is done
outside the standard interrupt framework due to the need to access
the interrupt controller over an interrupt-driven bus.

This code was all originally written by Liam Girdwood with updates for
submission by me.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Samuel Ortiz <sameo@openedhand.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2008-10-13 21:51:56 +01:00
Mark Brown bcdd4efc1b mfd: Add initialisation callback for WM8350
Some functions of the WM8350 require board-specific initialisation on
startup. Provide a callback to the WM8350 driver in platform data
for platforms to use to configure the chip.  Use of a callback allows
platforms to control the ordering of initialisation which can be
important.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Samuel Ortiz <sameo@openedhand.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2008-10-13 21:51:56 +01:00
Mark Brown 0e72039332 mfd: Add GPIO pin configuration support for WM8350
The WM8350 provides a number of user-configurable pins providing access
to various signals generated by the functions on the chip. These are
referred to as GPIO pins in the device documentation but in Linux terms
they are more general than that, providing configuration of alternate
functions.

This patch implements support for selecting the alternate functions for
these pins. They can also be used as GPIOs in the normal Linux sense -
a subsequent patch will add support for doing so.

This code was all written by Liam Girdwood and has had minor updates
and rearrangements by Mark Brown.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Samuel Ortiz <sameo@openedhand.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2008-10-13 21:51:55 +01:00
Mark Brown c661a0b92d mfd: Add I2C control support for WM8350
Implement the I2C control interface for the WM8350. This code was
originally written by Liam Girdwood and has been updated for submission
by Mark Brown.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Samuel Ortiz <sameo@openedhand.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2008-10-13 21:51:55 +01:00
Mark Brown 89b4012bef mfd: Core support for the WM8350 AudioPlus PMIC
The WM8350 is an integrated audio and power management subsystem
intended for use as the primary PMIC in mobile multimedia applications.
The WM8350 can be controlled via either I2C or SPI - the control
interface is provided by a separate module in order to allow greatest
flexibility in configuring the kernel.

This driver was originally written by Liam Girdwood and has since been
updated to current kernel APIs and split up for submission by me.  All
the heavy lifting here was done by Liam.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Samuel Ortiz <sameo@openedhand.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2008-10-13 21:51:55 +01:00