aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/mfd
AgeCommit message (Collapse)AuthorFilesLines
2013-02-14mfd: twl-core: Fix kernel panic on bootJon Hunter1-8/+8
Commit 8a6aaa3 (mfd: twl-core: Collect global variables behind one private structure (global)) removed the variable "inuse" that is used to determine if the device has been initialised and now use the twl_priv structure instead. This is causing the kernel to panic on OMAP3+ devices using the twl driver, because we try to access the twl_priv->ready member before checking if twl_priv is initialised. Fix this and move this test to the beginning of the twl_i2c_read/write function because twl_get_last_module() also uses the twl_priv structure. Signed-off-by: Jon Hunter <jon-hunter@ti.com> Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14Merge branch 'abx500-pinctrl-for-mfd' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl into for-nextSamuel Ortiz1-3/+50
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: rtsx: Fix issue that booting OS with SD card insertedWei WANG1-0/+30
Realtek card reader supports both SD and MS card. According to the settings of rtsx MFD driver, SD host will be probed before MS host. If we boot/reboot Linux with SD card inserted, the resetting flow of SD card will succeed, and the following resetting flow of MS is sure to fail. Then MS upper-level driver will ask rtsx driver to turn power off. This request leads to the result that the following SD commands fail and SD card can't be accessed again. In this commit, Realtek's SD and MS host driver will check whether the card that upper driver requesting is the one existing in the slot. If not, Realtek's host driver will refuse the operation to make sure the exlusive accessing at the same time. Signed-off-by: Wei WANG <wei_wang@realsil.com.cn> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: ab8500: Fix compile errorLinus Walleij1-0/+1
When compiling the AB8500 core driver in the latest MFD tree the following happens: CC drivers/mfd/ab8500-debugfs.o /home/elinwal/linux-next/drivers/mfd/ab8500-debugfs.c:157:3: error: 'AB8500_SYS_CTRL1_BLOCK' undeclared here (not in a function) /home/elinwal/linux-next/drivers/mfd/ab8500-debugfs.c:157:2: error: array index in initializer not of integer type /home/elinwal/linux-next/drivers/mfd/ab8500-debugfs.c:157:2: error: (near initialization for 'debug_ranges') (...) This is due to a missing include statement, so fix it up. Cc: Lee Jones <lee.jones@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: Add missing GENERIC_HARDIRQS dependeciesHeiko Carstens1-34/+38
A lot of mfd drivers select MFD_CORE which however depends on GENERIC_HARDIRQS support. So add the missing dependency to all drivers to get rid of this link error: ERROR: "irq_create_mapping" [drivers/mfd/mfd-core.ko] undefined! Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14Merge branch 'for-mfd' of git://git.linaro.org/people/ljones/linux-3.0-ux500 into for-nextSamuel Ortiz5-74/+1375
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: max8925: Fix onkey driver irq baseQing Xu1-1/+1
update onkey driver's irq base, it should get from max8925, but not save in a private value Signed-off-by: Qing Xu <qingx@marvell.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: max8925: Fix mfd device register failureQing Xu1-12/+10
we encounter rtc/power/touch driver registry failure, root cause it is resources confilict in insert_resouce, solved by changing mfd_add_devices 5th parameter to NULL Signed-off-by: Qing Xu <qingx@marvell.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: max8925: Add irqdomain for dtQing Xu2-32/+75
Add irqdomains for max8925's main irq, wrap irq register operations into irqdomain's map func. it is necessary for dt support. Also, add dt support for max8925 driver. Signed-off-by: Qing Xu <qingx@marvell.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: vexpress: Allow vexpress-sysreg to self-initialiseCatalin Marinas1-4/+6
The vexpress_sysreg_init() is a core_initcall() already and it can trigger the early initialisation if a matching node is found. This patch allows the SoC code to avoid calling vexpress_sysreg_of_early_init() explicitly. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: rtsx: Support RTS5227Roger Tseng4-1/+241
Support new model RTS5227. Signed-off-by: Roger Tseng <rogerable@realtek.com> Reviewed-by: Wei WANG <wei_wang@realsil.com.cn> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: rtsx: Implement driving adjustment to device-dependent callbacksRoger Tseng3-3/+29
Implement different ways of selecting driving capability(a necessary adjustment along with voltage change). It was origionally in device-independent mmc/host/rtsx_pci_sdmmc.c. Moving it here to support devices which may have a different way of adjustment. Signed-off-by: Roger Tseng <rogerable@realtek.com> Reviewed-by: Wei WANG <wei_wang@realsil.com.cn> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: vexpress: Add pseudo-GPIO based LEDsPawel Moll1-18/+55
The LEDs on the Versatile Express motherboard are controlled through simple memory-mapped register. This patch extends the pseudo-GPIO controller definition for these lines and creates generic "leds-gpio" device using them Signed-off-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: ab8500: Rename ab8500 to abx500 for hwmon driverHongbo Zhang1-3/+3
We are using a generic abx500 hwmon layer, so rename specific ab8500 to generic abx500 for hwmon device and driver matching. Signed-off-by: Hongbo Zhang <hongbo.zhang@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: rtsx: Optimize card detect flowWei WANG1-12/+19
1. Schedule card detect work at the end of the ISR 2. Callback function ops->cd_deglitch may delay for a period of time. It is not proper to call this callback when local irq disabled. 3. Card detect flow can't be executed in parallel with other card reader operations, so it's better to be protected by mutex. Signed-off-by: Wei WANG <wei_wang@realsil.com.cn> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: rtsx: Use macros to replace some variablesWei WANG2-9/+7
In function rtsx_pci_switch_clock, some variables, such as min_n, max_n, and max_div, are not necessary. And those assigned values look very obscure for others. It's more proper to use macro definitions here to replace these variables. Signed-off-by: Wei WANG <wei_wang@realsil.com.cn> Acked-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: rtsx: Fix checkpatch warningWei WANG1-13/+13
WARNING: Avoid CamelCase: <min_N> + u8 N, min_N, max_N, clk_divider; WARNING: Avoid CamelCase: <max_N> + u8 N, min_N, max_N, clk_divider; Signed-off-by: Wei WANG <wei_wang@realsil.com.cn> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: rtsx: Declare that the DMA address limitation is 32bit explicitlyWei WANG1-0/+4
Realtek PCIe card reader only supports 32bit DMA. This declaration can improve the readability. Signed-off-by: Wei WANG <wei_wang@realsil.com.cn> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: rtsx: Remove redundant codeWei WANG1-1/+0
In function rtsx_pci_add_sg_tbl, the statement "ptr++" is useless. Signed-off-by: Wei WANG <wei_wang@realsil.com.cn> Acked-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: tps65090: remove suspend/resume callbacksLaxman Dewangan1-23/+0
The tps65090 mfd driver implement the suspend/resume callbacks which just disable and enable irqs in suspend/resume respectively. This operation is already done in irq suspend and irq_resume and hence it is not require to implement the same in the driver. Remove this non-require code. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: tps65090: Pass irq domain when adding mfd sub devicesLaxman Dewangan1-1/+1
When device is get added through DT then irq_base is 0 (zero) and in this case regmap_irq_chip_get_base() generates warning. The interrupt of this device get added through irq_domain_add_linear() when irq_base is 0. Hence pass the irq domain in place of base_irq when calling mfd_add_devices(). Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: tps65090: add DT support for tps65090Laxman Dewangan1-3/+19
Add device tree support for the TI PMIC TPS65090. The device can be registered through platform or DT. Add device tree binding document for this device. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: wm5102: Make DSP scratch registers readableMark Brown1-0/+8
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: tps6507x: Add DT supportVishwanathrao Badarkhe, Manish1-0/+9
Add device tree based initialization support for TI's tps6507x mfd device. Signed-off-by: Vishwanathrao Badarkhe, Manish <manishv.b@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: 88pm80x: Remove redundant devm_* callsYi Zhang3-27/+9
devm_* functions are device managed and make error handling and code simpler; it also fix error exit paths Signed-off-by: Yi Zhang <yizhang@marvell.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: db8500-prcmu: Add ux500_wdt mfd_cellFabio Baltieri1-0/+12
This patch adds the necessary structures to use the watchdog functionality of PRCMU. The watchdog driver is named ux500_wdt. Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: dbx500-prcmu: Export a9wdog functionsFabio Baltieri1-0/+5
Add EXPORT_SYMBOL to db500_prcmu_*_a9wdog functions to allow usage from module. Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: lpc_ich: Fix gpio base and control offsetsAaron Sierra1-33/+76
In ICH5 and earlier the GPIOBASE and GPIOCTRL registers are found at offsets 0x58 and 0x5C, respectively. This patch allows GPIO access to properly be enabled (and disabled) for these chipsets. Signed-off-by: Agócs Pál <agocs.pal.86@gmail.com> Signed-off-by: Aaron Sierra <asierra@xes-inc.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: twl-core: Move twl_i2c_read/write_u8 to header as inline functionPeter Ujfalusi1-28/+0
twl_i2c_read/write_u8 become as a simple wrapper over the twl_i2c_read/write. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: twl-core: Remove no longer valid comment regarding to write buffer sizePeter Ujfalusi1-3/+0
With the regmap conversion there is no longeer a need to allocate bigger buffer for writes Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: twl-core: Collect global variables behind one private structure (global)Peter Ujfalusi1-47/+57
Gather the global variables under a single structure and allocate it with devm_kzalloc(). It is easier to see them and if in the future we try to add support for multiple instance of twl in the system it is going to be much simpler. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: twl-core: Move 'inuse' check early at probe timePeter Ujfalusi1-6/+6
We can fail earlier in case multiple instance of the twl-core is tried to be loaded. The twl-core by design only supports one instance. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: twl-core: Do not create dummy pdata when booted with DTPeter Ujfalusi1-24/+7
When booted with DT we can manage without the dummy pdata. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: twl-core: Do not try to call legacy mfd add_children() when booted with DTPeter Ujfalusi1-2/+1
There is really no point to retry to add children devices in case the of_platform_populate() fails. We do not have any information provided via pdata in this case anyways. Depending on the boot type (legacy or DT) only execute either one. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: twl-core: Allocate twl_modules dynamicallyPeter Ujfalusi1-10/+21
At boot time we can allocate the twl_modules array dynamically based on the twl class we are using with devm_kzalloc() instead of the static twl_modules[] array. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: twl-core: Use the lookup table to find the correct subchip for the modulesPeter Ujfalusi1-29/+27
Instead of using SUB_CHIP_ID* or magic numbers use the twl_mapping table to look for the subchip ID. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: twl-core: No need to check for invalid subchip IDPeter Ujfalusi1-11/+2
The module id table no longer can have invalid/unused entries. No need for checking the ID for validity. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: twl-core: Clean up module id lookup and definitionsPeter Ujfalusi1-51/+48
Use enums for all module definitions: twl_module_ids for common functionality among twl4030/twl6030 twl4030_module_ids for twl4030 specific ids twl6030_module_ids for twl6030 specific ids In this way the list can be managed easier when new functionality going to be implemented. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: arizona: Provide platform data for MICBIAS configurationMark Brown1-0/+23
Allow the MICBIAS voltages and other attributes to be configured by the platform. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: arizona: Clarify mixer underclocking errorMark Brown1-1/+1
If the mixer is underclocked it will drop a sample so log that error more directly. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: arizona: Disable interrupts during resumeMark Brown1-0/+26
Runtime power management does not function during system suspend but the Arizona devices need to use runtime power management to power up the device in order to handle interrupts. Try to avoid interrupts firing during resume by disabling the primary IRQ before interrupts are reenabled on resume and only reenabling it again during main resume. The goal is to avoid issues in the situation where an interrupt is asserted during resume (eg, due to it being the wake source) and the interrupt handling gets scheduled prior to the device being able to handle runtime PM. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: wm5102: Refresh register defaultsMark Brown1-62/+33
The WM5102 register defaults are not up to date with the current register map, synchronise them with those for current devices. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: wm5102: Mark DSP memory regions as volatile and readableMark Brown1-1/+7
We can cache some of them but this is simpler for now. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: wm8994: Use devm_regulator_bulk_get APISachin Kamat1-5/+2
devm_regulator_bulk_get is device managed and saves some cleanup and exit code. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: wm5102: Update rev B patch for latest evaluationMark Brown1-4/+5
The latest evaluation of the revision B silicon suggests some changes to the tuning applied for optimal performance. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: arizona: Register MICVDD supply first to ensure no retriesMark Brown1-2/+2
Not strictly required as probe deferral will take care of everything but it makes boot a little smoother. Reported-by: Ryo Tsutsui <Ryo.Tsutsui@wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: wm5102: Mark only extant DSP registers volatileMark Brown1-4/+7
Since regmap sometimes uses volatile as a proxy for readable simply having a blanket condition can mark too many registers as readable. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: palmas: Add rtc irq number as irq resource for palmas-rtcLaxman Dewangan1-2/+12
Palma RTC is capable of generating alarm interrupt. Pass the alarm interrupt as IRQ_RESOURCE for palmas-rtc sub device driver so that rtc driver can get irq as platform_get_irq(). Also pass the irq domain in mfd_add_devices() to properly offset the irqs for sub devices. This is needed when adding device through DT. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-13mfd: omap-usb-host: get rid of build warningRoger Quadros1-1/+1
Fixes the below build warning when driver is built-in. drivers/mfd/omap-usb-host.c:750:12: warning: ‘usbhs_omap_remove’ defined but not used [-Wunused-function] Signed-off-by: Roger Quadros <rogerq@ti.com> Reviewed-by: Felipe Balbi <balbi@ti.com>
2013-02-13mfd: omap-usb-host: Don't spam console on clk_set_parent failureRoger Quadros1-9/+9
clk_set_parent is expected to fail on OMAP3 platforms. We don't consider that as fatal so don't spam console. Signed-off-by: Roger Quadros <rogerq@ti.com> Reviewed-by: Felipe Balbi <balbi@ti.com>
Copyright © 1996 – 2026 Jason A. Donenfeld. All Rights Reverse Engineered.