Fixes following sparse warnings for twl4030 and twl6030 irq files.
drivers/mfd/twl4030-irq.c:783:5: warning: symbol 'twl4030_init_irq' was not
declared. Should it be static?
drivers/mfd/twl4030-irq.c:863:5: warning: symbol 'twl4030_exit_irq' was not
declared. Should it be static?
drivers/mfd/twl4030-irq.c:873:5: warning: symbol 'twl4030_init_chip_irq' was
not declared. Should it be static?
drivers/mfd/twl6030-irq.c:226:5: warning: symbol 'twl6030_init_irq' was not
declared. Should it be static?
drivers/mfd/twl6030-irq.c:290:5: warning: symbol 'twl6030_exit_irq' was not
declared. Should it be static?
Signed-off-by: G, Manjunath Kondaiah <manjugk@ti.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Tony Lindgren <tony@atomide.com>
Cc: Nishanth Menon <nm@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
max8998_pmic_probe:
- modified to check if valid pins are defined at platform
data
- maximal voltage values (predefined at platform data) are uploaded to
max8998 device
max8998_set_voltage_buck:
- BUCK1/2 voltages change between values already defined
- Checks if valid GPIO pins are passed from platform data
- If requested voltage cannot be satisfied from already defined values,
then one of free slots is used
- Predefined maximum voltages (as defined at platform data) are always
available
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
BUCK1/2 internal voltages and indexes defined in the struct max8998_data
max_get_voltage_register now uses index values to chose proper register
More generic BUCK1/2 registers names provided
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The chip TRM documentation contradicts itself about this bit, page 174
of swcu050e says bit should be 0 for clear-on-read behavior, while
page 487 says it should be 1. Testing shows it should be 1, so set
the .set_cor flag accordingly. This is needed for upcoming BCI
charging driver to function.
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
When the cell data_size is 0, the resulting platform_data pointer will be
set to ZERO_SIZE_PTR. That could be misleading for device drivers running
a NULL check on thei platform_data pointer before dereferencing it.
Signed-off-by: Brian Harring <ferringb@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Now that we have twl4030 charger driver, add back it's platform_data
(which was removed by f7ea2dc59e
as unused).
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The mfd driver for MC13783 recently got support for MC13892 and was
renamed accordingly from mc13783-core to mc13xxx-core. Do the same for
rtc-mc13783.
The only relevant change is to use platform id's to tell the platform bus
that this driver is responsible for mc13892-rtc devices, too.
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Adding card detect callback function and card detect configuration
function for MMC1 Controller on OMAP4.
Card detect configuration function does initial configuration of the
MMC Control & PullUp-PullDown registers of Phoenix.
For MMC1 Controller, card detect interrupt source is
twl6030 which is non-gpio. The card detect call back function provides
card present/absent status by reading MMC Control register present
on twl6030.
Since OMAP4 doesn't use any GPIO line as used in OMAP3 for card detect,
the suspend/resume initialization which was done in omap_hsmmc_gpio_init
previously is moved to the probe thus making it generic for both OMAP3 &
OMAP4.
Cc: Tony Lindgren <tony@atomide.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Madhusudhan Chikkature <madhu.cr@ti.com>
Cc: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
mc13892 is the companion PMIC for Freescale's i.MX51. It's similar enough
to mc13782 to support it in a single driver.
This patch introduces enough compatibility cruft to keep all users of the
superseded mc13783 driver unchanged.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The regulator driver was converted to get the needed data directly from
platform_data by
a10099b (regulator/mc13783: various cleanups)
so regulators and num_regulators can go away. Then apart from the flag
indicating that the adc does a conversion, flags is only a copy of the
flags member of platform_data. This flag isn't needed to be returned by
mc13783_get_flags, so mc13783_get_flags now gets the flags from
platform_data, too and the driver private member is renamed for clearity.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This is needed for supporting the upcoming VX855 camera and OLPC DCON
drivers, as well as the advanced viafb features on non-OLPC hardware
based on this chip.
Based on earlier work by Harald Welte.
Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This device has GPIO, SPI and I2C capabilities.
The hardware can be found in the OLPC XO-1.5 laptop.
Based on earlier work by Harald Welte.
Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The upcoming VIA VX855 MFD driver needs to communicate resources
to subdevices where the resources may be claimed by ACPI.
Add a flag to mfd_cell to request that resources are not policed.
Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Remove original 3-second ONKEY event. Detect ONKEY changing event directly.
So both UP and DOWN event of ONKEY in max8925 are monitered.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
88pm860x supports auto-blink LED in hardware. It messed with
timer trigger. Now disable the auto-blink function.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The WM8325 is a PMIC for low power, high performance applications. From
a software point of view the device is identical to the WM8320, all the
differences are at the hardware level.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Fixes below sparse warning.
drivers/mfd/twl-core.c:258:20: warning: symbol 'twl_map' was not declared. Should it be static?
Signed-off-by: G, Manjunath Kondaiah <manjugk@ti.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Tony Lindgren <tony@atomide.com>
Cc: Nishanth Menon <nm@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This patch defines platform data for the ks8842 int the timberdale
MFD.
The platform data contains DMA channels to be used by the driver.
Signed-off-by: Richard Röjfors <richard.rojfors@pelagicore.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Add PM helpers to STMPE and add support to enable wakeup from low power
states
Acked-by: Rabin VINCENT <rabin.vincent@stericsson.com>
Acked-by: Linus WALLEIJ <linus.walleij@stericsson.com>
Signed-off-by: Sundar Iyer <sundar.iyer@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Free allocated memory. Call stmpe_disable() if it was enabled.
Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This patch add a dependancy for ab8500-core driver so as to depend on
u8500 platform.
This patch also fixes the build issues(powerpc_allyesconfig) for the
patch 03f582a93ecca6e9584b622570022abf08ed03ec (misc: Add ab8500 pwm
driver)
Signed-off-by: Arun Murthy <arun.murthy@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Add support for enabling and disabling tps6586x subdevice interrupts
Signed-off-by: Gary King <gking@nvidia.com>
Acked-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This patch adds the choice of accessing the AB8500 registers
via prcmu I2C. Access either via SPI or I2C is supported.
Signed-off-by: Mattias Wallin <mattias.wallin@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This patch adds the possibility to read and write registers
via the debug_fs. It also adds ranges of registers sorted by bank
which makes it possible to read all defined registers in a bank.
Signed-off-by: Mattias Wallin <mattias.wallin@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This patch adds a Pulse Width Modulation driver for Analog Baseband
Chip AB8500.
Signed-off-by: Arun Murthy <arun.murthy@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Acked-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This patch makes the ab8500 mixed signal chip expose the same
interface for register access as the ab3100, ab3550 and ab5500 chip.
The ab8500_read() and ab8500_write() is removed and replaced with
abx500_get_register_interruptible() and
abx500_set_register_interruptible().
Signed-off-by: Mattias Wallin <mattias.wallin@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This patch removes the requirement that gpio base be supplied in
platform data.
Signed-off-by: Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Adjust the tmio_mmc block size check to accept 2-byte requests in 4-bit
mode if the hardware supports it.
Tested with the SDHI hardware block included in sh7724.
Signed-off-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
Signed-off-by: Matt Fleming <matt@console-pimps.org>
Acked-by: Magnus Damm <damm@opensource.se>
Tested-by: Arnd Hannemann <arnd@arndnet.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
In some platforms (e.g. AP4EVB) the card detect pin of a slot is not
directly connected to the sh_mmcif controller, so that polling needs
to be used. To overcome the overhead induced by querying the controller
on each poll cycle, card detection can be handled in the platform code
more efficiently.
This patch exposes a get_cd hook for that purpose.
Signed-off-by: Arnd Hannemann <arnd@arndnet.de>
Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
On some platforms (e.g. AP4EVB) the card detect pin of a slot is not
directly connected to the sdhi hardware, so that polling needs to be used
with tmio_mmc and card detection is handled in the platform code.
This patch allows to set tmio_mmc capabilities (to pass the
MMC_CAP_NEEDS_POLL flag) and exposes a get_cd hook for that purpose.
Signed-off-by: Arnd Hannemann <arnd@arndnet.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Some controllers, supported by the tmio_mmc driver do not have the card
detect pin of a slot connected, so that polling needs to be used and
card detection is handled by other means.
This patch exposes a get_cd hook for that purpose.
Signed-off-by: Arnd Hannemann <arnd@arndnet.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This adds support for the RTC provided by the Maxim 8998 chip. This
driver was tested on a GONI board by using the rtc-test application from
the Documentation/rtc.txt.
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Use genirq and provide seperated file for interrupts support.
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The MAX8998 chip have regulator and rtc features. The i2c slave address
of regulator and rtc is different, so needs each i2c client on i2c
operation functions.
Also, this patch exports i2c operation functions instead of callback to
make easy to read.
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
1. return -ENOMEM if platform_device_alloc() fail.
2. call platform_device_put() if platform_device_add() fail.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
1. return -ENOMEM if platform_device_alloc() fail.
2. call platform_device_put() if platform_device_add() fail.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This patch fixes da903x_add_subdevs error path:
1. return -ENOMEM if platform_device_alloc() fail.
2. call platform_device_put() if platform_device_add() fail.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Acked-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Add codec IRQ resources that are used in 88pm860x codec driver.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
For the resources allocated in tps6586x_i2c_probe(),
we need to free it in tps6586x_i2c_remove().
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
use the new definitions on twl header for code
consistency.
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
use the new definitions on twl header for code
consistency.
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
use the new definitions on twl header for code
consistency.
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
LP3974 PMIC support. It has same functionality as max8998.
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
GPIOs on these controller are multi-functional. If you decided to use
some of them e.g. as input channels for the ADC, you surely don't want
those pins to be reassigned as simple GPIOs (which may be triggered even
from userspace via 'export'). Same for the touchscreen controller pins.
Since knowledge about the hardware is needed to decide which GPIOs to
reserve, let this bitmask be inside platform_data and provide some
defines to assist potential users.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Rabin Vincent <rabin.vincent@stericsson.com>
Cc: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This switches the AB3100 core driver to using MFD cells for
subdevices instead of spawning common platform devices.
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Since there is no discardable probe() function in the I2C device
framework, let's just tag it __devinit and take the footprint hit
rather than seeing the compilation warnings every day.
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Fixed warnings about unprototyped global functions.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This patch adds support for the Broadcom BCM63xx SoC built-in watchdog, it
uses one of the BCM63xx hardware timer id.
Signed-off-by: Miguel Gaio <miguel.gaio@efixo.com>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
On iEi PCISA-9652-R10 (BIOS version 1.5) single board computer reads
from the game port do not seem to reset the watchdog timer. This patch
adds a module parameter wdt_config_reg to specify alternative reset
sources. At least WDT_RESET_KBD has been tested, even just running
while true; do
setleds -L +scroll
sleep 1
setleds -L -scroll
sleep 1
done
is enough to keep the watchdog happy.
Signed-off-by: Timo Juhani Lindfors <timo.lindfors@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This patch adds support for watchdogs with 8b timers, like ones in
IT8702F and older revisions of IT8712F Super IO chip, to it87_wdt
driver. This patch should be used after the patch
'it87_wdt: Add support for IT8720F watchdog'.
Signed-off-by: Ondrej Zajicek <santiago@crfreenet.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
In current implementation, vid is declared as u8,
then "vid == -1" is always false, and "vid >= 0" is always true.
Thus change it to s8.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Commit f03f91826 (regulator: Add option for machine drivers
to enable the dummy regulator) in the regulators tree
seems to have introduced the following build break when
CONFIG_REGULATOR_DUMMY is disabled. Fix this.
CC drivers/regulator/dummy.o
drivers/regulator/dummy.c:41: error: redefinition of 'regulator_dummy_init'
drivers/regulator/dummy.h:28: note: previous definition of 'regulator_dummy_init' was here
make[2]: *** [drivers/regulator/dummy.o] Error 1
make[1]: *** [drivers/regulator] Error 2
make: *** [drivers] Error 2
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
I have a regulator A that sets regulator B as its supply. When I call
set_supply to add B as the supply for A, regulator A gets added to the
supply_list for regulator B.
When I call regulator_disable(A), I end up with a call chain like this:
regulator_disable(A)
> mutex_lock(A)
> _regulator_disable(A)
>> _regulator_disable(B)
>>> _notifier_call_chain(B)
>>>> mutex_lock(A)
Which results in dead lock since we are trying to acquire the mutex lock
for regulator A which we already hold.
This patch addresses this issue by moving the call to disable regulator
B outside of the lock aquired inside the initial call to
regulator_disable.
This change also addresses the issue of not acquiring the mutex for
regulator B before calling _regulator_disable(B).
Signed-off-by: Jeffrey Carlyle <jeff.carlyle@motorola.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Allow machine drivers to explicitly enable the use of the dummy regulator,
enabling simpler support for systems with only a few specific supplies
visible to software.
It is strongly recommended that this is not used on systems with
substantial software control over their PMICs, for maximum functionality
constrints should be as fully specified as possible.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
This patch includes below fixes based on Mark's comment.
- Return actual error if i2c_smbus_read_byte_data() fail
- Add spaces around bitwise AND operator(&) to improve readability
- Add comment to explain why we need to update voltage change control register
for LDO1 and LDO5
- Logging the value for diagnostics if chip reported incorrect voltage value
- Add __devinit annotation for setup_regulators()
- Show system control register1 value if the value is mismatched
- Logging the value for diagnostics if failed to detect device
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
This patch adds regulator drivers for National Semiconductors LP3972 PMIC.
This LP3972 PMIC controller has 3 DC/DC voltage converters and 5 low drop-out
(LDO) regulators. LP3972 PMIC controller uses I2C interface.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
MAX8952 PMIC is used to provide voltage output between 770mV - 1400mV
with DVS support. In this initial release, users can set voltages for
four DVS modes, RAMP delay values, and SYNC frequency.
Controlling FPWM/SYNC_MODE/Pull-Down/Ramp Modes and reading CHIP_ID
is not supported in this release.
If GPIO of EN is not valid in platform data, the driver assumes that it
is always-on. If GPIO of VID0 or VID1 is invalid, the driver pulls down
VID0 and VID1 to fix DVS mode as 0 and disables DVS support.
We assume that V_OUT is capable to provide every voltage from 770mV to
1.40V in 10mV steps although the data sheet has some ambiguity on it.
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
--
v2:
- Style correction
- Can accept platform_data with invalid GPIOs
- Removed unnecessary features
- Improved error handling
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
This simple patch adds support for a watchdog in IT8720F Super IO chip
to it87_wdt driver.
Signed-off-by: Ondrej Zajicek <santiago@crfreenet.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The current iTCO_wdt driver warnings are confusing. Currently when the device
driver returns an error the console contains:
iTCO_vendor_support: vendor-support=0
iTCO_wdt: Intel TCO WatchDog Timer Driver v1.05
iTCO_wdt: failed to reset NO_REBOOT flag, reboot disabled by hardware
iTCO_wdt: No card detected
After the patch,
iTCO_vendor_support: vendor-support=0
iTCO_wdt: Intel TCO WatchDog Timer Driver v1.05
iTCO_wdt: failed to reset NO_REBOOT flag, device disabled by hardware/BIOS
Clean this up and use the word "device" to describe the device.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This patch adds the Intel Patsburg (PCH) DeviceIDs for iTCO Watchdog.
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: (68 commits)
hwmon: (it87) Add support for the IT8721F/IT8758E
hwmon: (it87) Move conversion functions
hwmon: Remove many EXPERIMENTAL flags
hwmon: (lm85) Add support for ADT7468 high-frequency PWM mode
hwmon: (lm85) Document the ADT7468 as supported
hwmon: (lm85) Fix ADT7468 frequency table
hwmon: I2C addresses are constant
Move ams driver to macintosh
hwmon: (pcf8591) Don't attempt to detect devices
hwmon: (pcf8591) Register as a hwmon device
hwmon: (w83795) Use standard attributes for chassis intrusion
hwmon: (w83795) Exclude fan control feature by default
hwmon: (w83795) Add myself as co-author and maintainer
hwmon: (w83795) More style cleanups
hwmon: (w83795) Fix LSB reading of voltage limits
hwmon: (w83795) Use dev_get_drvdata() where possible
hwmon: (w83795) Delay reading pwm config registers
hwmon: (w83795) Delay reading limit registers
hwmon: (w83795) Move register reads to dedicated functions
hwmon: (w83795) Pack similar register reads
...
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (27 commits)
x86: allocate space within a region top-down
x86: update iomem_resource end based on CPU physical address capabilities
x86/PCI: allocate space from the end of a region, not the beginning
PCI: allocate bus resources from the top down
resources: support allocating space within a region from the top down
resources: handle overflow when aligning start of available area
resources: ensure callback doesn't allocate outside available space
resources: factor out resource_clip() to simplify find_resource()
resources: add a default alignf to simplify find_resource()
x86/PCI: MMCONFIG: fix region end calculation
PCI: Add support for polling PME state on suspended legacy PCI devices
PCI: Export some PCI PM functionality
PCI: fix message typo
PCI: log vendor/device ID always
PCI: update Intel chipset names and defines
PCI: use new ccflags variable in Makefile
PCI: add PCI_MSIX_TABLE/PBA defines
PCI: add PCI vendor id for STmicroelectronics
x86/PCI: irq and pci_ids patch for Intel Patsburg DeviceIDs
PCI: OLPC: Only enable PCI configuration type override on XO-1
...
This patch enables and disables the rx and tx bits in the MAC control reg
by using a single write operation.
This also solves a possible problem (spotted on SPEAr platforms) at 10Mbps
where two consecutive writes to a MAC control register can take more than
4 phy_clk cycles.
Signed-off-by: Armando Visconti <armando.visconti@st.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/atarilance.c: In function ‘addr_accessible’:
drivers/net/atarilance.c:413: warning: comparison of distinct pointer types lacks a cast
drivers/net/atarilance.c:450: warning: comparison of distinct pointer types lacks a cast
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Reset the whole hw instead of freeing hw resources
consumed by each pci function.
Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Crash is triggered by commit e6484930d7 ("net: allocate tx queues in
register_netdevice"), which moved tx netqueue creation into register_netdev.
So now calling netif_stop_queue() before register_netdev causes an oops.
Move netif_stop_queue() after net device registration to fix crash.
Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add support for the IT8721F/IT8758E. These new chips differ from the
older IT87xxF chips in the following ways:
* ADC LSB is 12 mV instead of 16 mV.
* PWM values are 8-bit instead of 7-bit.
There are other minor changes we don't have to care about in the
driver.
Another change is that we will handle internal voltage scaling in the
driver instead of delegating the work to user-space.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Move conversion functions until after structure defintions. This is
needed for future changes which make use of the structures in the
conversion funtcions.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Remove the dependency on EXPERIMENTAL for all drivers which are in
the kernel tree for a long time, are known to work properly and for
which we have documentation.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Corentin Labbe <corentin.labbe@geomatys.fr>
Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: Juerg Haefliger <juergh@gmail.com>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
The ADT7468 supports a high-frequency PWM output mode where all PWM
outputs are driven by a 22.5 kHz clock. Add support for this mode, and
document it, as it may surprise the user that setting one PWM output
frequency also affects the other PWM outputs.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Darrick J. Wong <djwong@us.ibm.com>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
The ADT7468 uses the same frequency table as the ADT7463.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org
Cc: Darrick J. Wong <djwong@us.ibm.com>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
We can mark normal_i2c const. Almost all drivers do that already, so
fix the 3 remaining ones before they are used as (bad) examples for
new drivers.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: George Joseph <george.joseph@fairview5.com>
Reviewed-by: Guenter Roeck <guenter.roeck@ericsson.com>
The ams driver isn't a hardware monitoring driver, so it shouldn't
live under driver/hwmon. drivers/macintosh seems much more
appropriate, as the driver is only useful on PowerBooks and iBooks.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Stelian Pop <stelian@popies.net>
Cc: Michael Hanselmann <linux-kernel@hansmi.ch>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
The PCF8591 can't be detected, don't even try. There are plenty of
other means to instantiate i2c devices these days.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Reviewed-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Register PCF8591 devices as hwmon devices. There's little point in
implementing the standard sysfs interface if we don't register it in
a way libsensors will pick it.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Reviewed-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Follow the standard attribute naming for the chassis intrusion
feature. I couldn't test the beeping (my board apparently doesn't do
that) but the alarm works fine.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
The fan control feature of the w83795 driver is insufficiently
reviewed and tested for public consumption at this time, so make it
optional and disabled by default. We will change the default when
review and testing is deemed sufficient. Ultimately the option will
go away.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
I've made so many changes to the w83795 driver that it's only fair to
list myself as a co-author. I'll also maintain the driver for some
time. There's more work needed on the driver for sure.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cleanups suggested by Guenter Roeck, falling into 4 categories:
* Swapping test orders, because if (var == CONSTANT) is much easier to
read than if (CONSTANT == var).
* Simplifying comparisons with 0.
* Dropping unneeded masks.
* Dropping unneeded parentheses and curly braces.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
When we don't need the client pointer, calling dev_get_drvdata() is
more efficient that calling to_i2c_client() and then
i2c_get_clientdata().
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Wait until we need the pwm config register values, instead of
pre-reading them. This saves over 1 second on modprobe on my test
system.
Obviously this time is added when first accessing pwm config
attributes, however not everybody will use them, so it seems unfair
to slow down driver loading (and thus boot) for an optional feature.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Wait until we need the limit register values, instead of pre-reading
them. This saves 544 ms on modprobe on my test system. Obviously this
time is added when first running "sensors" or any other monitoring
application, but I think it is better than slowing down the boot.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Move initial register reads out of probe, to dedicated functions.
This makes the code clearer, and will be needed if we want to delay
calling these functions until they are needed, or want to call them
periodically.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cascaded conditionals are inefficient. Reorder the fields so that
PWM register addresses can be computed more efficiently.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
There is no point in reading registers during initialization if we
will refresh the values in the update function later. This is only
slowing down the driver loading with no benefit, stop doing it.
This change saves 480 ms on driver load on my test system.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
All 3 temperature sensor type sysfs functions (show_temp_mode,
store_temp_mode and show_dts_mode) can be simplified. We don't
create these files when the correponding input isn't in temperature
monitoring mode, so there is no point in handling that case.
Likewise, we don't allow changing inputs from temperature to voltage,
so the code handling this case is dead and can be removed.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
VRLSB_SHIFT is a non-sense, the actual shift depends on the sensor
type (fans need 4, other sensors need 6). Get rid of it to prevent
any confusion. Also get rid of the useless masking, the meaningful
bits are always the MSb so there's nothing to mask out after
shifting.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Shorten driver load time by avoiding duplicate register access during
initialization. This saves 112 ms on modprobe on my test system.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Handle beep_enable just like all other beep bits. It doesn't need
anything special, so let's avoid redundant code. This also saves a
duplicate register read at initialization time.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
The PWM duty cycle frequenty attributes are improperly named
(fanN_div instead of pwmN_div) and contain raw values instead of
actual frequencies. Rename them and fix their contents.
Also improve the logic when the user asks for a new frequency, to
always pick the closest supported frequency. The algorithm could
certainly be optimized, but the operation is infrequent enough that
I don't think it's worth the effort.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
The W83795G can be configured to set the in0, in1 and/or in2 voltage
limits dynamically based on VID input pins. Switch the respective
sysfs attributes to read-only.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Misplaced parentheses caused the wrong register value to be read,
resulting in random LSB for fan speed values and limits.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
* The data structure is zalloc'd, so no need to set individual fields
to 0 explicitly.
* Refactor the handling of pins that can be used for either
temperature or voltage monitoring.
* Misc other clean-ups.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Only create fan[1-8]_target files when the fan in question can be
controlled (PWM output is present.) Also name these files according
to the standard.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Use a dedicated 2D array for PWM attributes. This way, PWM attributes
are handled the same way as other attributes, this is more consistent.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Use 2D arrays for in, fan, temp and dts device attributes. Using
linear arrays is too risky as we have to skip some groups depending
on the device model and configuration. Adding or removing an
attribute would let the driver build silently but then it would crash
at runtime. With 2D arrays, the consistency checking happens at build
time, which is much safer.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Functions w83795_create_files and w83795_remove_files iterate over
the same set of files, just calling a different function. Merge them
into a single function which takes the action as a parameter. This
saves code, and also ensure that file creation and deletion are in
sync.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Function w83795_probe() is way too big, move file creation to a separate
function to make it more readable.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Sysfs files must be removed on device removal but also when device
registration fails. Move the code to a separate function to avoid
code redundancy.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Move the bank selection code to a separate function, to avoid
duplicating it in read and write functions. Improve error reporting
on register access error.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Enum chips and chip_types are redundant, get rid of the former. Fix
the detection code to properly identify the chip variant and name the
client accordingly.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
There is still much work needed, but I wanted to give Wei the credit
he deserves. I've merged some of my own fixes already, to make
gcc and checkpatch happy. Individual fixes and improvements from me
will follow.
[JD: Fix build errors]
[JD: Coding style cleanups]
[JD: Get rid of forward declarations]
[JD: Drop VID support]
[JD: Drop fault output control feature]
[JD: Use lowercase for inline function names]
[JD: Use strict variants of the strtol/ul functions]
[JD: Shorten the read and write function names]
Signed-off-by: Jean Delvare <khali@linux-fr.org>
This way we don't need to modify Kconfig every time a new SoC comes along to
make this driver support it. Also fix some typos while I'm at it.
Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Reviewed-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
The semaphore which protects the ADC is semantically a mutex. Use a
real mutex.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Currently we get the checkpatch warning
consider using strict_strtol in preference to simple_strtol.
Also we should not allow any partially numeric values.
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
I was wondering if that chip ever existed publicly... Apparently yes,
so add support for it.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Alexander Stein <alexander.stein@informatik.tu-chemnitz.de>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
Instead of using switch/case and if statements in probe, define chip specific
functionality in a parameter structure array.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
The family check in k8temp is not required because the driver is
already bound to a northbridge device only used with K8 CPUs.
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Along the same lines as "cxgb4: fix crash due to manipulating queues
before registration" (8f6d9f4047), before
commit "net: allocate tx queues in register_netdevice"
netif_tx_stop_all_queues and related functions could be used between
device allocation and registration but now only after registration.
cxgb4 has such a call before registration and crashes now. Move it
after register_netdev.
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Cc: eric.dumazet@gmail.com
Cc: sonnyrao@us.ibm.com
Cc: Divy Le Ray <divy@chelsio.com>
Cc: Dimitris Michailidis <dm@chelsio.com>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Tested-by: Nishanth Aravamudan <nacc@us.ibm.com>
Acked-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The __NS8390_init tries to start the device queue before the
device is registered. This results in an oops (snipped):
[ 2.865493] BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
[ 2.866106] IP: [<ffffffffa000602a>] netif_start_queue+0xb/0x12 [8390]
[ 2.881267] Call Trace:
[ 2.881437] [<ffffffffa000624d>] __NS8390_init+0x102/0x15a [8390]
[ 2.881999] [<ffffffffa00062ae>] NS8390_init+0x9/0xb [8390]
[ 2.882237] [<ffffffffa000d820>] ne2k_pci_init_one+0x297/0x354 [ne2k_pci]
[ 2.882955] [<ffffffff811c7a0e>] local_pci_probe+0x12/0x16
[ 2.883308] [<ffffffff811c85ad>] pci_device_probe+0xc3/0xef
[ 2.884049] [<ffffffff8129218d>] driver_probe_device+0xbe/0x14b
[ 2.884937] [<ffffffff81292260>] __driver_attach+0x46/0x62
[ 2.885170] [<ffffffff81291788>] bus_for_each_dev+0x49/0x78
[ 2.885781] [<ffffffff81291fbb>] driver_attach+0x1c/0x1e
[ 2.886089] [<ffffffff812912ab>] bus_add_driver+0xba/0x227
[ 2.886330] [<ffffffff8129259a>] driver_register+0x9e/0x115
[ 2.886933] [<ffffffff811c8815>] __pci_register_driver+0x50/0xac
[ 2.887785] [<ffffffffa001102c>] ne2k_pci_init+0x2c/0x2e [ne2k_pci]
[ 2.888093] [<ffffffff81000212>] do_one_initcall+0x7c/0x130
[ 2.888693] [<ffffffff8106d74f>] sys_init_module+0x99/0x1da
[ 2.888946] [<ffffffff81002a2b>] system_call_fastpath+0x16/0x1b
This happens because the netif_start_queue sets respective bit on the dev->_tx
array which is not yet allocated.
As far as I understand the code removing the netif_start_queue from __NS8390_init
is OK, since queue will be started later on device open. Plz, correct me if I'm wrong.
Found in the Dave's current tree, so he's in Cc.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
G, Manjunath Kondaiah