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path: root/drivers/mfd/da9052-core.c
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2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152Thomas Gleixner
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-05mfd: da9052: Fix manual ADC read after timed out readSebastian Reichel
It is possible that under heavy system load, the counter in the completion struct, used for waiting for end of AD conversion, gets incremented twice. To make sure the driver recovers from this situation, the completion struct should be reinitialized. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-08-22mfd: da9052: Make touchscreen registration optionalSebastian Reichel
If the touchscreen pins are used as general purpose analogue input, the touchscreen driver should not be used. The pins will be handled by the existing hwmon driver instead. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-10-04mfd: da9053: Ensure the FAULT_LOG is cleared during MFD driver probeSteve Twiss
The function da9052_clear_fault_log() is added to mitigate the case of persistent data being transferred between reboots. Clearance of any the persistent information within the DA9053 FAULT_LOG register must be completed during start-up so the fault-log does not continue with previous values. A clearance function has been added here in the kernel driver because wiping the fault-log cannot be counted on outside the Linux kernel. Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com> Reviewed-by: Adam Thomson <adam.thomson.opensource@diasemi.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-10-30mfd: da9053: Addition of extra registers for GPIOs 8-13Steve Twiss
Definitions for GPIO registers 8, 9, 10, 11, 12 and 13 are added into the register header file. - DA9052_GPIO_8_9_REG 25 - DA9052_GPIO_10_11_REG 26 - DA9052_GPIO_12_13_REG 27 A modification is also made to the MFD core code to define these registers as readable and writable. The functions for da9052_reg_readable() and da9052_reg_writeable() have had their case statements altered to include these new registers. Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-05-27mfd: da9052: Fix broken regulator probeJohan Hovold
Fix broken probe of da9052 regulators, which since commit b3f6c73db732 ("mfd: da9052-core: Fix platform-device id collision") use a non-deterministic platform-device id to retrieve static regulator information. Fortunately, adequate error handling was in place so probe would simply fail with an error message. Update the mfd-cell ids to be zero-based and use those to identify the cells when probing the regulator devices. Fixes: b3f6c73db732 ("mfd: da9052-core: Fix platform-device id collision") Cc: stable <stable@vger.kernel.org> # v3.19 Signed-off-by: Johan Hovold <johan@kernel.org> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Mark Brown <broonie@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-20mfd: da9052-core: Fix platform-device id collisionFabio Estevam
Allow multiple DA9052 regulators be registered by registering with PLATFORM_DEVID_AUTO instead of PLATFORM_DEVID_NONE. The subdevices are currently registered with PLATFORM_DEVID_NONE, which will cause a name collision on the platform bus when multiple regulators are registered: [ 0.128855] da9052-regulator da9052-regulator: invalid regulator ID specified [ 0.128973] da9052-regulator: probe of da9052-regulator failed with error -22 [ 0.129148] ------------[ cut here ]------------ [ 0.129200] WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x5c/0x7c() [ 0.129233] sysfs: cannot create duplicate filename '/devices/platform/soc/60000000.aips/63fc8000.i2c/i2c-0/0-0048/da9052-regulator ... [ 0.132891] ------------[ cut here ]------------ [ 0.132924] WARNING: CPU: 0 PID: 1 at lib/kobject.c:240 kobject_add_internal+0x24c/0x2cc() [ 0.132957] kobject_add_internal failed for da9052-regulator with -EEXIST, don't try to register things with the same name in the same directory. ... [ 0.137000] da9052 0-0048: mfd_add_devices failed: -17 [ 0.138486] da9052: probe of 0-0048 failed with error -17 Based on the fix done by Johan Hovold at commit b6684228726cc255 ("mfd: viperboard: Fix platform-device id collision"). Tested on a imx53-qsb board, where multiple DA9053 regulators can be successfully probed. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-09-26mfd: da9052: Avoid setting read_flag_mask for da9052-i2c driverAxel Lin
Current code init regmap with &da9052_regmap_config for both da9052-spi and da9052-i2c drivers. da9052-spi sets the read_flag_mask. The same setting may be applied for da9052-i2c if da9052-spi driver is loaded first because they actually use the same regmap_config setting. Fix this issue by using a local variable for regmap_config in da9052-spi driver, so the settings in spi driver won't impact the settings in i2c driver. Also makes da9052_regmap_config const to avoid similar issue. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-03-19mfd: da9052: Fix volatile register definition ommissionsanthony.olech.opensource@diasemi.com
Three of the PMIC registers have some bits that are changed autonomously by the PMIC itself (some time) after being set by some component driver of the DA9052 PMIC and hence they need to be marked as volatile so that the regmap API will not cache their values. Acked-by: David Dajun Chen <david.chen@diasemi.com> Signed-off-by: Anthony Olech <anthony.olech.opensource@diasemi.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-01-06mfd: dialog: Constify struct mfd_cell where possibleGeert Uytterhoeven
As of commit 03e361b25ee8dfb1fd9b890072c23c4aae01c6c7 ("mfd: Stop setting refcounting pointers in original mfd_cell arrays"), the "cell" parameter of mfd_add_devices() is "const" again. Hence make all cell data passed to mfd_add_devices() const where possible. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2013-07-31mfd: Use dev_get_platdata()Jingoo Han
Use the wrapper function for retrieving the platform data instead of accessing dev->platform_data directly. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2012-12-16Merge tag 'mfd-3.8-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 Pull MFS update from Samuel Ortiz: "This is the MFD patch set for the 3.8 merge window. We have several new drivers, most of the time coming with their sub devices drivers: - Austria Microsystem's AS3711 - Nano River's viperboard - TI's TPS80031, AM335x TS/ADC, - Realtek's MMC/memstick card reader - Nokia's retu We also got some notable cleanups and improvements: - tps6586x got converted to IRQ domains. - tps65910 and tps65090 moved to the regmap IRQ API. - STMPE is now Device Tree aware. - A general twl6040 and twl-core cleanup, with moves to the regmap I/O and IRQ APIs and a conversion to the recently added PWM framework. - sta2x11 gained regmap support. Then the rest is mostly tiny cleanups and fixes, among which we have Mark's wm5xxx and wm8xxx patchset." Far amount of annoying but largely trivial conflicts. Many due to __devinit/exit removal, others due to one or two of the new drivers also having come in through another tree. * tag 'mfd-3.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (119 commits) mfd: tps6507x: Convert to devm_kzalloc mfd: stmpe: Update DT support for stmpe driver mfd: wm5102: Add readback of DSP status 3 register mfd: arizona: Log if we fail to create the primary IRQ domain mfd: tps80031: MFD_TPS80031 needs to select REGMAP_IRQ mfd: tps80031: Add terminating entry for tps80031_id_table mfd: sta2x11: Fix potential NULL pointer dereference in __sta2x11_mfd_mask() mfd: wm5102: Add tuning for revision B mfd: arizona: Defer patch initialistation until after first device boot mfd: tps65910: Fix wrong ack_base register mfd: tps65910: Remove unused data mfd: stmpe: Get rid of irq_invert_polarity mfd: ab8500-core: Fix invalid free of devm_ allocated data mfd: wm5102: Mark DSP memory regions as volatile mfd: wm5102: Correct default for LDO1_CONTROL_2 mfd: arizona: Register haptics devices mfd: wm8994: Make current device behaviour the default mfd: tps65090: MFD_TPS65090 needs to select REGMAP_IRQ mfd: Fix stmpe.c build when OF is not enabled mfd: jz4740-adc: Use devm_kzalloc ...
2012-11-28mfd: remove use of __devinitdataBill Pemberton
CONFIG_HOTPLUG is going away as an option so __devinitdata is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Peter Tyser <ptyser@xes-inc.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-28mfd: remove use of __devinitBill Pemberton
CONFIG_HOTPLUG is going away as an option so __devinit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Peter Tyser <ptyser@xes-inc.com> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Bryan Huntsman <bryanh@codeaurora.org> Acked-by: David Brown <davidb@codeaurora.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-20mfd: da9052: Introduce da9052-irq.cFabio Estevam
Create a da9052-irq.c file so that it can handle interrupt related functions. This is useful for allowing the da9052 drivers to use such functions when dealing with da9052 interrupts. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-20mfd: da9052-core: Use regmap_irq_get_virq() and fix the probeFabio Estevam
On a mx53qsb dt-kernel the da9052-core driver fails to probe as follows: da9052 1-0048: DA9052 ADC IRQ failed ret=-22 The reason for the error was due to passing only the offset as the interrupt number in request_threaded_irq() without da9052->irq_base. The recommended approach though is to use regmap_get_virq() to acquire the interrupt number and this allows to get rid of da9052->irq_base. Fix it and allow the driver to probe successfully. Also provide a few more error logs and change the irq string to "adc-irq", so that it appears as a single word in 'cat /proc/interrupts' Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Reviwed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-09-15mfd: core: Push irqdomain mapping out into devicesMark Brown
Currently the MFD core supports remapping MFD cell interrupts using an irqdomain but only if the MFD is being instantiated using device tree and only if the device tree bindings use the pattern of registering IPs in the device tree with compatible properties. This will be actively harmful for drivers which support non-DT platforms and use this pattern for their DT bindings as it will mean that the core will silently change remapping behaviour and it is also limiting for drivers which don't do DT with this particular pattern. There is also a potential fragility if there are interrupts not associated with MFD cells and all the cells are omitted from the device tree for some reason. Instead change the code to take an IRQ domain as an optional argument, allowing drivers to take the decision about the parent domain for their interrupts. The one current user of this feature is ab8500-core, it has the domain lookup pushed out into the driver. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-07-09mfd: Remove unused variable from da9052_device_initKrzysztof Wilczynski
This is to address the following warning during compilation time: drivers/mfd/da9052-core.c: In function ‘da9052_device_init’: drivers/mfd/da9052-core.c:646: warning: unused variable ‘desc’ This variable is indeed no longer in use (change can be traced back to commit: 8614419451d88bf99fff7f5e468fe45f8450891e). Signed-off-by: Krzysztof Wilczynski <krzysztof.wilczynski@linux.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-05-29Merge tag 'mfd-3.5-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 Pull MFD changes from Samuel Ortiz: "Besides the usual cleanups, this one brings: * Support for 5 new chipsets: Intel's ICH LPC and SCH Centerton, ST-E's STAX211, Samsung's MAX77693 and TI's LM3533. * Device tree support for the twl6040, tps65910, da9502 and ab8500 drivers. * Fairly big tps56910, ab8500 and db8500 updates. * i2c support for mc13xxx. * Our regular update for the wm8xxx driver from Mark." Fix up various conflicts with other trees, largely due to ab5500 removal etc. * tag 'mfd-3.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (106 commits) mfd: Fix build break of max77693 by adding REGMAP_I2C option mfd: Fix twl6040 build failure mfd: Fix max77693 build failure mfd: ab8500-core should depend on MFD_DB8500_PRCMU gpio: tps65910: dt: process gpio specific device node info mfd: Remove the parsing of dt info for tps65910 gpio mfd: Save device node parsed platform data for tps65910 sub devices mfd: Add r_select to lm3533 platform data gpio: Add Intel Centerton support to gpio-sch mfd: Emulate active low IRQs as well as active high IRQs for wm831x mfd: Mark two lm3533 zone registers as volatile mfd: Fix return type of lm533 attribute is_visible mfd: Enable Device Tree support in the ab8500-pwm driver mfd: Enable Device Tree support in the ab8500-sysctrl driver mfd: Add support for Device Tree to twl6040 mfd: Register the twl6040 child for the ASoC codec unconditionally mfd: Allocate twl6040 IRQ numbers dynamically mfd: twl6040 code cleanup in interrupt initialization part mfd: Enable ab8500-gpadc driver for Device Tree mfd: Prevent unassigned pointer from being used in ab8500-gpadc driver ...
2012-05-20mfd: Add ADC support to the DA9052/53 coreAshish Jangam
This patch adds ADC support to the DA9052/53 core. Tested on smdkv6410 and i.mx53 QS boards. Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-05-13mfd: da9052: Fix genirq abuseMark Brown
Rather than using the pointer passed back by the regmap API (or complaining because that wasn't actually being set) the da9052 driver was having some fun and games peering through genirq and regmap internals. Fix the driver to use the API as expected. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-06mfd: Remove unused io_lock mutex from da9052Axel Lin
da9052 has been converted to use regmap API, so we can remove the unused io_lock mutex. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-01-03mfd: Clearing events requires event registers to be writable for da9052-coreAshish Jangam
Signed-off-by: David Dajun Chen <dchen@diasemi.com> Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-26mfd: Fix annotations in da9052-coreMark Brown
Device initialisation should be marked __devinit and __devinitdata. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-14MFD: DA9052/53 MFD core moduleAshish Jangam
The DA9052/53 is a highly integrated PMIC subsystem with supply domain flexibility to support wide range of high performance application. It provides voltage regulators, GPIO controller, Touch Screen, RTC, Battery control and other functionality. This patch is functionally tested on Samsung SMDKV6410. Signed-off-by: David Dajun Chen <dchen@diasemi.com> Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>