Commit Graph

1711 Commits

Author SHA1 Message Date
Mark Brown
b2e2558edf mfd: arizona: Register haptics devices
Both WM5102 and WM5110 support haptics, register the device.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-30 11:12:23 +01:00
Mark Brown
d54e17f9f1 mfd: wm8994: Make current device behaviour the default
As the wm8994 series of devices are now very mature make the current
behaviour of the devices the default behaviour, any future revisions are
likely to have only minor updates.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-30 11:12:23 +01:00
Axel Lin
64cdfe256a mfd: tps65090: MFD_TPS65090 needs to select REGMAP_IRQ
This fixes below build error:

drivers/built-in.o: In function `tps65090_i2c_probe':
drivers/mfd/tps65090.c:180: undefined reference to `regmap_add_irq_chip'
drivers/mfd/tps65090.c:190: undefined reference to `regmap_irq_chip_get_base'
drivers/mfd/tps65090.c:203: undefined reference to `regmap_del_irq_chip'
drivers/built-in.o: In function `tps65090_i2c_remove':
drivers/mfd/tps65090.c:213: undefined reference to `regmap_del_irq_chip'
make: *** [vmlinux] Error 1

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-27 09:43:13 +01:00
Randy Dunlap
20d5c7defc mfd: Fix stmpe.c build when OF is not enabled
Fix build errors when CONFIG_OF is not enabled by including
<linux/of.h> (needs to be added in any case).
An alternative fix could be to make the driver depend on OF.

drivers/mfd/stmpe.c:1025:2: error: implicit declaration of function 'of_property_read_u32'
drivers/mfd/stmpe.c:1030:2: error: implicit declaration of function 'for_each_child_of_node'
drivers/mfd/stmpe.c:1030:36: error: expected ';' before '{' token

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-26 22:05:15 +01:00
Devendra Naga
931cbaf352 mfd: jz4740-adc: Use devm_kzalloc
Use devm_kzalloc and remove the error path free'ing and unload free'ing
as the devm resource functions free them.

Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-26 12:20:49 +01:00
Viresh Kumar
3253398385 mfd: stmpe-i2c: Move .driver structure fields inside {} in stmpe_i2c_driver
Currently, few fields in stmpe_i2c_driver are initialized as:
.driver.owner = THIS_MODULE,

Group them under {}, like:
.driver = {
	.owner = THIS_MODULE,
	...
},

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-26 12:15:18 +01:00
Lee Jones
b20a43715e mfd: Simplify IRQ domain registration code in STMPE
Historically, a driver would have to decide whether it required
a Linear or Legacy IRQ domain when registering one. This can end
up as quite a lot of code. A new Simple call now exists which
simplifies this process. Let's make use of it here.

Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-26 12:11:21 +01:00
Axel Lin
3f9be35bd9 mfd: rc5t583: Fix array subscript is above array bounds
I got below build warning while compiling this driver.
It's obviously RC5T583_MAX_INTERRUPT_MASK_REGS is 9 but irq_en_add
array only has 8 elements.

  CC      drivers/mfd/rc5t583-irq.o
drivers/mfd/rc5t583-irq.c: In function 'rc5t583_irq_sync_unlock':
drivers/mfd/rc5t583-irq.c:227: warning: array subscript is above array bounds
drivers/mfd/rc5t583-irq.c: In function 'rc5t583_irq_init':
drivers/mfd/rc5t583-irq.c:349: warning: array subscript is above array bounds

Since the number of interrupt enable registers is 8, this patch adds
define for RC5T583_MAX_INTERRUPT_EN_REGS to fix this bug.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-26 12:10:51 +01:00
Lars Poeschel
302b95621d mfd: viperboard: Do version query in dma memory
The query for the viperboard version was done with memory buffer
on the stack but usb transfers need dma capable memory buffer.
This is fixed now.

Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-26 11:48:56 +01:00
Patil, Rachna
3c39c9c6e9 MFD: ti_am335x_tscadc: Pass correct error message
Pass on the correct error message from platform_get_irq()
instead of hard coding it to "EINVAL".

Also change label from "err" to "ret" for better
readability and update the same in error path.

Signed-off-by: Patil, Rachna <rachna@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-26 00:36:21 +01:00
Inderpal Singh
5e393a2227 mfd: sec: Fix reg_offset for interrupt registers
reg_offset is offset of the status/mask registers. Now, since status_base
and mask_base are pointing to corresponding first registers, reg_offset
should start from 0 otheriwse regmap_add_irq_chip will fail during probe.

Signed-off-by: Inderpal Singh <inderpal.singh@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-26 00:35:08 +01:00
Mark Brown
fee546ce8c mfd: wm8994: Add support for WM1811 rev E
This is supported identically to the previous revisions.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-23 12:22:06 +01:00
Ulf Hansson
916a871c48 mfd: ab8500-core: Add abx500-clk as an mfd child device
Hierarchically, the abx500-clk shall be considered as a child of the
ab8500 core. The abx500-clk is intiated at arch init and thus the clks
will be available when clients needs them.

Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-23 12:17:01 +01:00
Guennadi Liakhovetski
acad189b08 mfd: Add an AS3711 PMIC MFD driver
AS3711 is a PMIC with multiple DCDC and LDO power supplies, GPIOs, an RTC,
a battery charger and a general purpose ADC. This patch adds support for
the MFD with support for a regulator driver and a backlight driver.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-23 12:09:19 +01:00
Viresh Kumar
cb5faba951 mfd: stmpe: Use devm_*() routines
This patch frees stmpe driver from tension of freeing resources.
devm_* derivatives of multiple routines are used while allocating resources,
which would be freed automatically by kernel.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-23 12:03:17 +01:00
Paul Bolle
0c418844dc mfd: lpc_ich: One uninitialized cell is no error
At every boot of an (outdated) laptop lpc_ich prints an error:
    lpc_ich 0000:00:1f.0: I/O space for GPIO uninitialized

But if one looks at lpc_ich's probe function one notices that the code
only cares if both lpc_ich_init_wdt() and lpc_ich_init_gpio() fail to
add any cells. So stop treating the failure to add a single cell as an
error. Those messages can be printed at notice level. And then only warn
if no cells were added.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21 17:34:23 +01:00
Peter Hurley
e294bc9176 mfd: lpc_ich: Fix resource request for [mem 0x00000000]
The older southbridges supported by the lpc_ich driver do not
provide memory-mapped space of the root complex. The driver
correctly avoids computing the iomem address in this case, yet
submits a zeroed resource request anyway (via mfd_add_devices()).

Remove the iomem resource from the resource array submitted to the
mfd core for the older southbridges.

Acked-by: Aaron Sierra <asierra@xes-inc.com>
Cc: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21 17:31:20 +01:00
Peter Ujfalusi
d640e75794 mfd: twl-core: Change TWL4030_MODULE_* ids to TWL_MODULE_*
To facilitate upcoming cleanup in twl stack.
No functional changes.

Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21 16:08:06 +01:00
Peter Ujfalusi
6fbc6420b7 mfd: twl4030-irq: Change TWL4030_MODULE_* ids to TWL_MODULE_*
To facilitate upcoming cleanup in twl stack.
No functional changes.

Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21 16:08:06 +01:00
Peter Ujfalusi
4850f1247a mfd: twl4030-power: Change TWL4030_MODULE_* ids to TWL_MODULE_*
To facilitate upcoming cleanup in twl stack.
No functional changes.

Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21 16:08:05 +01:00
Peter Ujfalusi
e45342f678 mfd: twl4030-madc: Change TWL4030_MODULE_* ids to TWL_MODULE_*
To facilitate upcoming cleanup in twl stack.
No functional changes.

Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21 16:08:04 +01:00
Peter Ujfalusi
6691ccd056 mfd: twl-core: re-group the twl_mapping table for easier reading
Group the twl_mapping table in 5 lines chunks so it is more easier to find
the row we are looking for (if we need to).

Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21 16:08:04 +01:00
Peter Ujfalusi
da059ecfc9 mfd: twl: Convert module id definitions to enums
Use enum list for the module definitions (TWL4030_MODULE_*) which will ease
up future work with the IDs.
At the same time group the IDs in block of five so it is easier to find the
ID we are looking for (to count the number they stand for).

At the same time define TWL_MODULE_LED so client drivers can switch to use
it as soon as it is possible.

Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21 16:08:02 +01:00
Peter Ujfalusi
2d86ad37ec mfd: twl-core: Clean up and correct child registration
Make the twl child registration calls a bit more uniform by always using the
SUB_CHIP_ID* define instead of the mixed use of the define and magic number.

At the same time correct the following devices so they are registered for the
correct parent device (i2c slave):
twl4030_wdt is accessible on 0x4b address and not 0x48
twl4030_pwrbutton is accessible on 0x4b address and not 0x49
twl4030-audio is on 0x49 all the time

Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21 16:08:01 +01:00
Peter Ujfalusi
14591d888e mfd/rtc/gpio: twl: No need to allocate bigger buffer for write
Since the twl-core has been converted to use regmap it is no longer needed
to allocate bigger buffer for data when writing to twl.

CC: Grant Likely <grant.likely@secretlab.ca>
CC: Alessandro Zummo <a.zummo@towertech.it>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21 16:08:00 +01:00
Peter Ujfalusi
2473d25a2f mfd: twl-core: Convert to use regmap for I/O
Remove the custom code to do I/O and replace it with standard regmap calls.

Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21 16:07:59 +01:00
Peter Ujfalusi
afc45898f6 mfd: twl-core: Support for proper PWM drivers
The twl6030-pwm driver is going to be deleted since it was only able to
control the Charging indicator LED on the twl6030 PMIC.
The new set of drivers are going to provide support for both PWMs and PWM
driven LED outputs on TWL4030 and TWL6030 PMICs.
The twl-pwm driver will handle the PWMs (2 instance) while the twl-pwmled
driver is to control the two LED instance on TWL4030 and to charging
indicator LED (1 instance) on TWL6030.

Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21 16:07:59 +01:00
Peter Ujfalusi
24ae36f5c2 mfd: twl-core: Register twl4030-madc child only for twl4030 class
twl4030-madc driver can only handle twl4030 class MADC. The newer revisions
of twl does not have MADC, instead they have different IP called GPADC which
is not backward compatible.

Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21 16:07:58 +01:00
Aaro Koskinen
c7b76dce8a mfd: Introduce retu-mfd driver
Retu is a multi-function device found on Nokia Internet Tablets
implementing at least watchdog, RTC, headset detection and power button
functionality.

This patch implements minimum functionality providing register access,
IRQ handling and power off functions.

Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21 16:07:57 +01:00
Sachin Kamat
dac98aef59 mfd: twl6040: Remove duplicate inclusion of linux/err.h
linux/err.h was included twice.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21 16:07:56 +01:00
Mark Brown
442613f974 mfd: wm5102: Make FLL NCO test registers readable
They contain documented status readback fields.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21 16:07:56 +01:00
Colin Foe-Parker
eb433dad48 mfd: tps65217: Set PMIC to shutdown on PWR_EN toggle
Set tps65217 PMIC status to OFF if power enable toggle is supported.
By setting this bit to 1 to enter PMIC to OFF state when PWR_EN pin
is pulled low. Also adds a DT flag to specify that device pmic
supports shutdown control or not.

Signed-off-by: Colin Foe-Parker <colin.foeparker@logicpd.com>
[anilkumar@ti.com: move the additions to tps65217 MFD driver]
Signed-off-by: AnilKumar Ch <anilkumar@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21 16:07:55 +01:00
Laxman Dewangan
759f2598ef mfd: tps65090: Use regmap irq framework for interrupt support
Use the regmap irq framework for implementing TPS65090 interrupt
support in place of implementing it locally.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21 16:07:53 +01:00
Laxman Dewangan
b9c7932316 mfd: tps65090: Move register access APIs to header
Since tps65090 register is accessed via regmap, moving
the register access APIs to header and making it as inline.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21 16:07:53 +01:00
Laxman Dewangan
3863db3e80 mfd: tps65090: Remove unused member of struct tps65090
Remove unused member from tps65090 data structure as
these are not used.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21 16:07:52 +01:00
Laxman Dewangan
e8e6f047e6 mfd: tps65090: Add error prints when mem alloc failed
Add error prints when memory allocation failed for
tps65090 data. Also cleanups the melloc arguments.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21 16:07:51 +01:00
Laxman Dewangan
e2e8ffc970 mfd: Add battery charger in tps65090 sub devs
TPS65090 supports the battery charging and hence adding
the device name in the list of TPS65090 children. Also
remove the tps65090-regulator as it duplicates with
tps65090-pmic for regulator driver.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21 16:07:51 +01:00
Laxman Dewangan
edd7eabc85 mfd: Add TI TPS80031 mfd core driver
TPS80031/ TPS80032 Fully Integrated Power Management with Power
Path and Battery Charger. The device provides five configurable
step-down converters, 11 general purpose LDOs, USB OTG Module,
ADC, RTC, 2 PWM, System Voltage Regulator/Battery Charger with
Power Path from USB, 32K clock generator.

Add the mfd core driver for TPS80031/TPS80032.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviwed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21 16:07:47 +01:00
Mark Brown
dbc4849db3 mfd: wm5102: Mark some more status registers as volatile
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-20 12:21:24 +01:00
Mark Brown
a3e2a76e9e mfd: wm5102: Update maximum register
The DSP memories are mapped into the register map, make them readable and
writable by updating max_register appropriately.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-20 12:21:24 +01:00
Davide Ciminaghi
b73df6986b mfd: sta2x11-mfd: Add myself to copyright
Signed-off-by: Davide Ciminaghi <ciminaghi@gnudd.com>
Acked-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-20 12:21:17 +01:00
Davide Ciminaghi
dba6c1aeea mfd: sta2x11-mfd: Add scr (otp registers) platform driver
Signed-off-by: Davide Ciminaghi <ciminaghi@gnudd.com>
Acked-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-20 12:21:16 +01:00
Davide Ciminaghi
e885ba2980 mfd: sta2x11-mfd: Use one lock per device instead of one lock per mfd
The lock is used to implement atomic operations on each platform
device's registers, so it looks reasonable having one lock per
device instead of one common lock for all the devices belonging
to the same sta2x11 instance.

Signed-off-by: Davide Ciminaghi <ciminaghi@gnudd.com>
Acked-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-20 12:21:16 +01:00
Davide Ciminaghi
3ce26d2f4b mfd: sta2x11-mfd: Do not mind about gpio platform data
The gpio platform driver will take care of its platform data,
let's not do any checks here.

Signed-off-by: Davide Ciminaghi <ciminaghi@gnudd.com>
Acked-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-20 12:21:15 +01:00
Davide Ciminaghi
8ec86a302a mfd: sta2x11-mfd: Only add sta2x11_mfd if it hasn't already been added
The pci probe method is called twice now, so we have to call
sta2x11_mfd_add() only once to avoid a -EBUSY error.

Signed-off-by: Davide Ciminaghi <ciminaghi@gnudd.com>
Acked-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-20 12:21:15 +01:00
Davide Ciminaghi
b18adafccd mfd: sta2x11-mfd: Use defines for platform devices' names
Since there are now many sta2x11-mfd platform devices, using defines
for their names looks like a better solution.

Signed-off-by: Davide Ciminaghi <ciminaghi@gnudd.com>
Acked-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-20 12:21:15 +01:00
Davide Ciminaghi
29f5b5a326 mfd: sta2x11-mfd: Add sta2x11_mfd_get_regs_data() function
A couple of predefined clocks (mux and gated) need to be
initialized with the virtual address of the clock's controlling
register and the address of a spinlock used to protect against
races.

This function exports such data for all the mfd cells.

Signed-off-by: Davide Ciminaghi <ciminaghi@gnudd.com>
Acked-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-20 12:21:14 +01:00
Davide Ciminaghi
d94e25535a mfd: sta2x11-mfd: Add regmap support
Signed-off-by: Davide Ciminaghi <ciminaghi@gnudd.com>
Acked-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-20 12:21:14 +01:00
Davide Ciminaghi
1950c71646 mfd: sta2x11-mfd: Add apb-soc regs driver and factor out common code
A driver for the apb-soc registers is needed by the clock
infrastructure code to configure and control clocks on the sta2x11
chip.

Since some of the functions in sta2x11-mfd.c were almost identical
for the two existing platform devices, the following changes
have been performed to avoid further code duplication while
adding the apb-soc-regs driver:

* The sctl_regs and apbreg_regs fields in struct sta2x11_mfd
have been turned into just one array of pointers accessed by
device index.
* Platform probe methods have become one-liners invoking a
common probe with the device's index as second parameter.
* For loops have been inserted where the same operations
were performed for each of the two bars of a pci device.
* The apbreg_mask and sctl_mask functions were almost identical,
so they were turned into inline functions invoking a common
__sta2x11_mfd_mask() with the platform device's index as last
parameter. To do this, enum sta2x11_mfd_plat_dev has been declared in
sta2x11-mfd.h and more device types have been added to it.

Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Davide Ciminaghi <ciminaghi@gnudd.com>
Acked-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-20 12:21:14 +01:00
Lars Poeschel
ffd8a6e7a7 iio: adc: Add viperboard adc driver
This adds the mfd cell to use the adc part of the Nano River Technologies
viperboard.

Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-20 12:21:13 +01:00