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path: root/drivers/mfd
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2012-03-06mfd: Convert s5m core driver to use devm_kzalloc()Sangbeom Kim
Convert s5m core driver to use devm_kzalloc(). Signed-off-by: Sangbeom Kim <sbkim73@samsung.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-03-06mfd: Initialize tps65910 irq platform data properlyLaxman Dewangan
irq_base of the tps65910 irq platform data should be initialized with the board provided irq_base data. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-03-06mfd: Fix s5m error handling for invalid device typeJonghwan Choi
If device type is not supported in driver, have to retun error. Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-03-06mfd: Fix possible s5m null pointer dereferenceJonghwan Choi
This patch checks for pdata to using it. Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-03-06mfd: wm8350 variable dereferenced before checkJonghwan Choi
Remove "wm8350->irq_base = pdata->irq_base" to avoid null pointer exception and wm8350->irq_base got from irq_alloc_descs(). Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-03-06mfd: Add initial db8500 prcmu register access apiMattias Nilsson
This patch adds an initial PRCMU register access API, which for now should only be used for a very limited set of registers. The idea about this API is that we split the PRCMU driver in one part that deals with interaction with the PRCMU firmware and one part that simply provide write accessors in the PRCMU register range. The latter are just a collection of registers exposed in the PRCMU register range for various purposes and not related to the PRCMU firmware. Currently we support some limited GPIO, SPI and UART settings through this API. Signed-off-by: Mattias Nilsson <mattias.i.nilsson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-03-06mfd: Remove check for db8500 firmware bugJonas Aaberg
In prcmu firmware version 3.4.4 the issue with longer intervalls than 131 s was fixed, we don't expect the issue to creep back up. Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-03-06mfd: db8500 OPP and sleep handling updateMattias Nilsson
This updates the operating point handling code by: - Supporting the DDR OPP retention state. - Supporting another low operating point named APE_50_PARTLY_25_OPP - Adding an interface to figure out if the sleep state change was properly achieved. Signed-off-by: Shreshtha Kumar Sahu <shreshthakumar.sahu@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Mattias Nilsson <mattias.i.nilsson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-03-06mfd: Spawned db8500 regulators updateBengt Jonsson
As drivers have progressed and got some more review we have consequently moved things around: - Some device drivers have changed name and some were wrong from the beginning. - We removed the dependency from some domains to the VAPE domain - SIA MMDSP, SIA PIPE, SVA MMDSP and SVA PIPE power domains are handled outside the framework while ESRAM12 and ESRAM34 are actually handled inside the PRCMU. Reviewed-by: Rickard Andersson <rickard.andersson@stericsson.com> Reviewed-by: Jonas Aberg <jonas.aberg@stericsson.com> Signed-off-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-03-06mfd: db8500 clock handling updateMattias Nilsson
This updates the clock handling in the DB8500 PRCMU driver with the latest findings and API changes related to changes in the backing firmware in the PRCMU. - Add the necessary interfaces to get the frequencies of the clocks and set the rate of some of the clocks. - Add support for controlling the clocks PLLSOC0, PLLDSI, DSI0, DSI1 and DSI escape clocks (DSInESCCLK). - Correct the PLLSDI enable/disable sequence by using the DSIPLL_CLAMPI bit. After this we will have the interfaces and code to implement the U8500 clock framework properly. Reviewed-by: Jonas Aberg <jonas.aberg@stericsson.com> Signed-off-by: Mattias Nilsson <mattias.i.nilsson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-03-06mfd: Update abstract dbx500 interfaceMattias Nilsson
This prefixes a number of accessor functions with db8500_* since they are DB8500-specific and we need to move to this naming scheme. We also replace numerous instances of machine_is() with cpu_is() which covers the right type of ASICs rather than entire machines i.e. boards. Signed-off-by: Mattias Nilsson <mattias.i.nilsson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-03-06mfd: Function for obtaining the db8500 prcmu firmware versionMattias Nilsson
This patch exports a function that can be used to tell which version of the DB8500 PRCMU firmware is available, and revamps the firmware detection code a bit. Reviewed-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Reviewed-by: Jonas Aberg <jonas.aberg@stericsson.com> Signed-off-by: Mattias Nilsson <mattias.i.nilsson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-03-06mfd: Remove db8500-prcmu U8400 legacyDaniel Willerud
This removes the U8400 legacy from PRCMU and cpufreq drivers. This platform has no current in-kernel users. Signed-off-by: Daniel Willerud <daniel.willerud@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-03-06mfd: Fix section mismatch warning for da9052-spiAxel Lin
Add __devinit annotation for da9052_spi_probe to fix below build warning: WARNING: drivers/built-in.o(.text+0x349b4): Section mismatch in reference from the function da9052_spi_probe() to the function .devinit.text:da9052_device_init() The function da9052_spi_probe() references the function __devinit da9052_device_init(). This is often because da9052_spi_probe lacks a __devinit annotation or the annotation of da9052_device_init is wrong. Also add __devexit annotation for da9052_spi_remove because we have __devexit_p around it in the remove callback. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-03-06mfd: Add pdata to set mc13783-ts conversion delayMichael Thalmeier
MC13783 can be programmed to wait some clock cycles between the touchscreen polarization and the resistance conversion. This is needed to adjust for touchscreens with high capacitance between plates. Signed-off-by: Michael Thalmeier <michael.thalmeier@hale.at> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-03-06mfd: Add missing regmap_exit to free a previously allocated da9052 register mapAxel Lin
Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-03-06mfd: Add new mfd device for TPS65217AnilKumar Ch
The TPS65217 chip is a power management IC for Portable Navigation Systems and Tablet Computing devices. It contains the following components: - Regulators - White LED - USB battery charger This patch adds support for tps65217 mfd device. At this time only the regulator functionality is made available. Signed-off-by: AnilKumar Ch <anilkumar@ti.com> Reviwed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-03-06mfd: twl-core: Don't specify regulator consumers by struct deviceMark Brown
This has been deprecated for considerable time now and support has been removed from the regulator API. dev_name should be used instead. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-03-05dt: fix twl4030 for non-dt compile on x86Grant Likely
twl4030 still doesn't build correctly for x86 allmodconfig. This fix solves the missing symbol errors. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Benoit Cousson <b-cousson@ti.com>
2012-03-01mfd: Correct readability of WM8994 DC servo 4E registerMark Brown
It should be marked as readable but wasn't, breaking DC servo operation. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-02-29mfd: Improve performance of later WM1811 revisionsMark Brown
Apply tunings from earlier silicon revisions to revisions up to D and also tweak an additional setting for improved DC servo performance. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-02-26mfd: twl-core: Add IRQ_DOMAIN dependencyGrant Likely
TWL4030 depends on IRQ_DOMAIN support, so this patch selects it in Kconfig. It used to be that CONFIG_IRQ_DOMAIN must only be selected by the architecture, but recent cleanups have fixed it so that it is safe to select from anywhere. Signed-off-by: Benoit Cousson <b-cousson@ti.com> [grant.likely: Changed from a depends to a select] Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Cc: Samuel Ortiz <sameo@linux.intel.com>
2012-02-26devicetree: Add empty of_platform_populate() for !CONFIG_OF_ADDRESS (sparc)Grant Likely
Sparc has its own helpers for translating address ranges when the device tree is parsed at boot time, and it isn't able to use of_platform_populate(). However, there are some device drivers that want to use that function on other DT enabled platforms (ie. TWL4030). This patch adds an empty of_platform_populate() implementation that returns an error when CONFIG_OF_ADDRESS is not selected. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Cc: Benoit Cousson <b-cousson@ti.com> Cc: Samuel Ortiz <sameo@linux.intel.com>
2012-02-23mfd: Initialize tps65912 irq platform data properlyAxel Lin
irq_base of the tps65912 irq platform data should be initialized with the board provided irq_base data. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-02-23mfd: Fix ACPI conflict checkJean Delvare
The code is currently always checking the first resource of every device only (several times.) This has been broken since the ACPI check was added in February 2010 in commit 91fedede0338eb6203cdd618d8ece873fdb7c22c. Fix the check to run on each resource individually, once. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: stable@vger.kernel.org Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-02-22mfd: wm8400: Convert to devm_regmap_init_i2c()Mark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com>
2012-02-22mfd: wm831x: Convert to devm_regmap_init()Mark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com>
2012-02-22mfd: wm8994: Convert to devm_regmap_init()Mark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com>
2012-02-22mfd/ASoC: Convert WM8994 driver to use regmap patchesMark Brown
Early revisions of several of the WM8994 variants have register updates to improve performance. Move these over to using the regmap patch system instead of open coding them in the audio driver. Since the regmap init is done by the MFD the code is moved there. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com>
2012-02-22mfd: Add __devinit and __devexit annotations in wm8994Mark Brown
The wm8994_device_init() and wm8994_device_exit() functions were not annotated as device init and exit functions, meaning they shouldn't reference __devinitdata. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Samuel Oritz <sameo@linux.intel.com>
2012-02-22mfd: wm8994: Add __devinit and __devexit annotations for probe and removeMark Brown
Fixes warnings and needed for correctness. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-02-21mfd: Fix ab8500 error path bugLinus Walleij
We were not freeing the irq properly in the error path in the AB8500 driver. Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Maxime Coquelin <maxime.coquelin@stericsson.com> Signed-off-by: Alex Macro <alex.macro@stericsson.com> Signed-off-by: Michel Jaouen <michel.jaouen@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-02-21mfd: Test for jack detection when deciding if wm8994 should suspendMark Brown
The jack detection on WM1811 is often required during system suspend, add it as another check when deciding if we should suspend. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@vger.kernel.org Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-02-20mfd: Initialize tps65910 irq platform data properlyLaxman Dewangan
irq_base of the tps65910 irq platform data should be initialized with the board provided irq_base data. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-02-20mfd: Fix possible s5m null pointer dereferenceJonghwan Choi
This patch checks for pdata to using it. Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-02-20mfd: wm8350 variable dereferenced before checkJonghwan Choi
Remove "wm8350->irq_base = pdata->irq_base" to avoid null pointer exception and wm8350->irq_base got from irq_alloc_descs(). Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-02-18MFD: mcp-sa11x0/assabet: move assabet reset handling out of mcp-sa11x0.cRussell King
Move the assabet specific reset handling out of mcp-sa11x0.c, into its board file. This leaves the mcp code free from all board specific details. Acked-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-02-18MFD: ucb1x00-assabet: add support for UCB1x00 GPIO switchesRussell King
Add support for UCB1x00 GPIO buttons found on the Assabet platform. We can now trivially support these buttons as we have standardized gpiolib, genirq and gpio keyboard support in place for this device. Acked-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-02-18MFD: ucb1x00-core: add wakeup supportRussell King
Add genirq wakeup support for the ucb1x00 device. This allows an attached gpio_keys driver to wakeup the system. Touchscreen is also possible. When there are no wakeup sources, ask the platform to assert the reset signal to avoid any unexpected behaviour; this also puts the reset signal at the right level when power is removed from the device. Acked-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-02-18MFD: ucb1x00: convert to use genirqRussell King
Convert the ucb1x00 driver to use genirq's interrupt services, rather than its own private implementation. This allows a wider range of drivers to use the GPIO interrupts (such as the gpio_keys driver) without being aware of the UCB1x00's private IRQ system. This prevents the UCB1x00 core driver from being built as a module, so adjust the configuration to add that restriction. Acked-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-02-18MFD: mcp-core: remove legacy driver suspend/resume methodsRussell King
The legacy driver suspend/resume methods are no longer used, so get rid of them. Acked-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-02-18MFD: ucb1x00-core: convert to use dev_pm_opsRussell King
Convert the ucb1x00-core driver to use dev_pm_ops rather than the legacy members in the mcp driver. Acked-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-02-18MFD: mcp-sa11x0: complain if mcp clock is left enabledRussell King
Issue a warning if the mcp clock was left enabled by some driver when we're suspending or tearing down the core driver for the device. This is an aid for debugging missing disable calls. Acked-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-02-18MFD: ucb1x00-core: disable mcp clock when bus is not requiredRussell King
The ucb1x00-core was leaving the mcp clock enabled indefinitely after probe. This needlessly wastes power. Add the necessary disables to ensure that the clock remains off when we don't need it. Acked-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-02-18MFD: ucb1x00-core: add missing ucb1x00_enable()/ucb1x00_disable()Russell King
ucb1x00_enable() and ucb1x00_disable() are used for power saving on the SIB interface, allowing the host supplied clock to be disabled when not required. We require drivers which access the ucb1x00 to ensure that they have enabled the clock prior to accessing the device, and they should disable it once they're done. As we don't expect gpiolib users to be aware of this detail, we must make these calls in the gpiolib interfaces. Add them. Also add them to the resume method, which needs to re-establish the GPIO pin settings. Acked-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-02-18MFD: ucb1x00-core: scan drivers in same order they're registeredRussell King
Cosmetic patch to scan the list of drivers in the order that the drivers are registered, rather than the reverse order. This avoids surprises when drivers get probed in the reverse order, and input devices get registered in a different order due to bind/unbind than from boot. Acked-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-02-18MFD: ucb1x00-core: add owner and dev initializers to gpio structureRussell King
Register the gpio device with proper .owner and .dev elements set appropraitely. Acked-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-02-18MFD: ucb1x00-core: clean up device handling in probeRussell King
Clean up the device handling so we can use the struct device sanely. Acked-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-02-18MFD: ucb1x00-core: use mutexes instead of semaphoresRussell King
Convert the ucb1x00 driver to use mutexes rather than the depreciated semaphores for exclusive access to the ADC. Acked-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-02-18MFD: ucb1x00-core: add .owner initializer and module aliasRussell King
Add a .owner initializer to the UCB1x00 mcp driver structure, and set an appropriate module alias to identify this driver. Acked-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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