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path: root/drivers/mfd
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2010-05-28mfd: Check t7l66 platform_data pointerSamuel Ortiz1-0/+3
We should check for pdata being not NULL before dereferencing it. Reported-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-05-27Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlightLinus Torvalds1-0/+3
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlight: gta02: Use pcf50633 backlight driver instead of platform backlight driver. backlight: pcf50633: Register a pcf50633-backlight device in pcf50633 core driver. backlight: Add pcf50633 backlight driver backlight: 88pm860x_bl: fix error handling in pm860x_backlight_probe backlight: max8925_bl: Fix error handling path backlight: l4f00242t03: fix error handling in l4f00242t03_probe backlight: add S6E63M0 AMOLED LCD Panel driver backlight: adp8860: add support for ADP8861 & ADP8863 backlight: mbp_nvidia_bl - Fix DMI_SYS_VENDOR for MacBook1,1 backlight: Add Cirrus EP93xx backlight driver backlight: l4f00242t03: Fix regulators handling code in remove function backlight: fix adp8860_bl build errors backlight: new driver for the ADP8860 backlight parts backlight: 88pm860x_bl - potential memory leak backlight: mbp_nvidia_bl - add support for older MacBookPro and MacBook 6,1. backlight: Kconfig cleanup backlight: backlight_device_register() return ERR_PTR()
2010-05-26backlight: pcf50633: Register a pcf50633-backlight device in pcf50633 core ↵Lars-Peter Clausen1-0/+3
driver. Register a device newly added pcf50633-backlight driver as a child device in the pcf50633 core driver. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2010-05-26leds: Add mc13783 LED supportPhilippe Rétornaz1-0/+4
This add basic led support for Freescale MC13783 PMIC. Signed-off-by: Philippe Rétornaz <philippe.retornaz@epfl.ch> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2010-05-25regulator: use voltage number array in 88pm860xHaojian Zhuang1-0/+2
A lot of condition comparision statements are used in original driver. These statements are used to check the boundary of voltage numbers since voltage number isn't linear. Now use array of voltage numbers instead. Clean code with simpler way. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-05-25regulator: make 88pm860x sharing one driver structureHaojian Zhuang1-17/+17
Remove a lot of driver structures in 88pm860x driver. Make regulators share one driver structure. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-05-22sh: allow platforms to specify SD-card supported voltagesGuennadi Liakhovetski1-1/+3
Boards can have different supplied voltages on different SD card slots. This information has to be passed down to the SD/MMC driver. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Ian Molton <ian@mnementh.co.uk> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-22mfd: pass platform flags down to the tmio_mmc driverGuennadi Liakhovetski1-0/+2
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Ian Molton <ian@mnementh.co.uk> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-22mmc: add DMA support to tmio_mmc driver, when used on SuperHGuennadi Liakhovetski1-0/+6
SDHI controllers on SuperH, served by the tmio_mmc driver, can use slave DMA for data transfer. This patch adds support for the dmaengine API to the tmio_mmc driver. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Ian Molton <ian@mnementh.co.uk> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-22sh: prepare the SDHI MFD driver to pass DMA configuration to tmio_mmc.cGuennadi Liakhovetski1-4/+20
Pass DMA slave IDs from platform down to the tmio_mmc driver, to be used for dmaengine configuration. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-20Merge branch 'topic/asoc' into for-linusTakashi Iwai7-8/+580
Conflicts: sound/soc/codecs/ad1938.c
2010-05-13mfd: Clean up after WM83xx AUXADC interrupt if it arrives lateMark Brown2-0/+7
In certain circumstances, especially under heavy load, the AUXADC completion interrupt may be detected after we've timed out waiting for it. That conversion would still succeed but the next conversion will see the completion that was signalled by the interrupt for the previous conversion and therefore not wait for the AUXADC conversion to run, causing it to report failure. Provide a simple, non-invasive cleanup by using try_wait_for_completion() to ensure that the completion is not signalled before we wait. Since the AUXADC is run within a mutex we know there can only have been at most one AUXADC interrupt outstanding. A more involved change should follow for the next merge window. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-05-10ASoC: Use more idiomatic driver name for WM8731Mark Brown1-0/+30
Make dev_() prints much prettier. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-04-05mfd: Add WM8994 interrupt controller supportMark Brown4-6/+353
The WM8994 has an interrupt controller which supports interrupts for both CODEC and GPIO portions of the chip. Support this using genirq, while allowing for systems that do not have an interrupt hooked up. Wrapper functions are provided for the IRQ request and free to simplify the code in consumer drivers when handling cases where IRQs are not set up. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com>
2010-04-02mfd: update gfp/slab.h includesTejun Heo1-0/+1
Implicit slab.h inclusion via percpu.h is about to go away. Make sure gfp.h or slab.h is included as necessary. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-03-30include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo32-1/+31
implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-22Merge branch 'for-2.6.34' into for-2.6.35Mark Brown2-10/+11
2010-03-18OMAP4: PMIC: Rename twl6030_codec as twl6040_codecOlaya, Margarita1-2/+2
Correction for chips: twl6030 is Phoenix Power chip twl6040 is Phoenix Audio chip Signed-off-by: Margarita Olaya Cabrera <magi.olaya@ti.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-03-13Merge branch 'for-linus' of ↵Linus Torvalds2-6/+7
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: mfd: Several MFD drivers should depend on GENERIC_HARDIRQS mfd: Fix sm501 requested region size
2010-03-12MFD: DaVinci Voice CodecMiguel Aguilar3-0/+194
This is the MFD driver for the DaVinci Voice codec, it has two clients: * Voice codec interface * Voice codec CQ93VC Signed-off-by: Miguel Aguilar <miguel.aguilar@ridgerun.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-03-12mfd: Several MFD drivers should depend on GENERIC_HARDIRQSGeert Uytterhoeven1-4/+5
commit 5fb4d38b19d95a5f980f0a10adba798f5b92128c ("mfd: Move WM831x to generic IRQ") didn't take into account that genirq support depends on GENERIC_HARDIRQS. Additionally, 2.6.34-rc1 added: - commit 2afa62ea76027b00e472ddb672191e6e15425b43 ("mfd: Use genirq in 88pm860x"). - commit 760e4518788df6762700e6bb9dd8692379f11168 ("mfd: Convert WM8350 to genirq"). - commit 1f1cf8f98cf6588365efeaab8e7e7758aaa77f6e ("mfd: Update irq handler in max8925") Make all of them depend on GENERIC_HARDIRQS to avoid compile errors on architectures that don't support genirq yet. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-12mfd: Fix sm501 requested region sizeSamuel Ortiz1-2/+2
We should only request for the MFD used region, not the whole thing. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Tested-by: Paul Mundt <lethal@linux-sh.org> Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
2010-03-08Merge branch 'for-next' into for-linusJiri Kosina1-4/+4
Conflicts: Documentation/filesystems/proc.txt arch/arm/mach-u300/include/mach/debug-macro.S drivers/net/qlge/qlge_ethtool.c drivers/net/qlge/qlge_main.c drivers/net/typhoon.c
2010-03-08mfd: Fix ucb1x00 build failure for collie_defconfigPeter Huewe1-0/+1
This patch fixes a build failure[1], by adding the missing semaphore.h include References: [1] http://kisskb.ellerman.id.au/kisskb/buildresult/2234322/ Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd: Use completion interrupt for WM831x AUXADCMark Brown1-7/+29
Use the completion interrupt generated by the device rather than polling for conversions to complete. As a backup we still check the status of the AUXADC if we don't get a completion, mostly for systems that don't have the WM831x interrupt infrastructure hooked up. Also reduce the timeout for completion of conversions to 5ms from the previous 10ms, the lower timeout should be sufficient. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd: Use completion interrupt for WM835x AUXADCMark Brown1-6/+29
Use the completion interrupt generated by the device rather than polling for conversions to complete. As a backup we still check the state of the AUXADC if we don't get a completion, mostly for systems that don't have the WM8350 interrupt infrastructure hooked up. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd: Introduce remove_script function for twl4030Mike Turquette1-0/+50
New function twl4030_remove_script(u8 flags) takes a script type as defined in twl.h and prevents any script already loaded in that position from running. This is accomplished by programming SEQ_ADD_* to 0x3f, the END_OF_SCRIPT value, where SEQ_ADD_* is determined by flags. (Future) users of this function include OMAP board files for machines facing a race condition between sleep and warm reset. Signed-off-by: Mike Turquette <mturquette@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd/mmc: SDHI Kconfig updateMagnus Damm1-1/+1
Enable the sh_mobile_sdhi mfd driver on SH-Mobile ARM processors. While at it, make CONFIG_TMIO_MMC depend on CONFIG_MFD_SH_MOBILE_SDHI. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd: sh_mobile_sdhi MMC_CAP_MMC_HIGHSPEED supportMagnus Damm1-3/+3
Add MMC_CAP_MMC_HIGHSPEED support to the sh_mobile_sdhi driver. Also, remove type cast and FIXME comment. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd: Add WM831x revision B supportMark Brown1-0/+15
Revision B of the WM831x devices changes the sense of the tristate bit for GPIO configuration, inverting it to become an enable instead. Take account of this in the gpiolib driver. A current sink regulation status bit has also been added in revision B, add a flag indicating if it's present but don't use it yet. This revision also adds an interrupt on key up for the ON pin event which the existing code is able to take advantage of. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd: Add twl6030 base addr for ID0, ID1, ID2Balaji T K1-2/+5
Add base address for generic slave ID0, ID1, ID2 and introduced one more entry to align RTC module number between twl4030 and twl6030 Signed-off-by: Balaji T K <balajitk@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd: Disable TWL4030/5030 I2C1/I2C4 internal pull-upsMoiz Sonasath1-0/+13
This patch disables TWL4030/5030 I2C1 adn I2C4(SR) internal pull-up, to use only the external HW resistor >=470 Ohm for the assured functionality in HS mode. While testing the I2C in High Speed mode, it was discovered that without a proper pull-up resistor, there is data corruption during multi-byte transfer. RTC(time_set) test case was used for testing. From the analysis done, it was concluded that ideally we need a pull-up of 1.6k Ohm(recomended) or atleast 470 Ohm or greater for assured performance in HS mode. Signed-off-by: Moiz Sonasath <m-sonasath@ti.com> Signed-off-by: Allen Pais <allen.pais@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd: Introduce lpc_sch for Intel SCH LPC bridgeDenis Turischev3-0/+143
Intel Poulsbo (SCH) chipset LPC bridge controller contains several functions. Creating and MFD driver for the LPC bridge controller allows simultaneous use of SMBus and GPIO interfaces on the SCH. Signed-off-by: Denis Turischev <denis@compulab.co.il> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd: Check for ACPI conflictsSamuel Ortiz1-0/+5
For ACPI based systems, we should check for ACPI conflicts when adding the platform devices. The test will always succeed for non ACPI platforms. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd: Fix twl_has_pwrbutton typoEduardo Valentin1-1/+1
Change the typo CONFIG_INPUT_TWL4030_PWBUTTON_MODULE in the twl_has_pwrbutton definition to CONFIG_INPUT_TWL4030_PWRBUTTON_MODULE. Signed-off-by: Eduardo Valentin <eduardo.valentin@nokia.com> Signed-off-by: Christoph Egger <siccegge@stud.informatik.uni-erlangen.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd: Use genirq in 88pm860xHaojian Zhuang1-114/+294
Use genirq to simplify IRQ handling in 88pm860x. Remove the interface of mask/free IRQs on 88pm860x. All these work is taken by genirq. Update the touchscreen driver of 88pm860x since IRQ handling is changed. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd: Fix WM8994 error handlingJoonyoung Shim1-2/+2
This patch fixes wrong goto statement for error handling on probe. Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd: Use i2c_dummy in 88pm860xHaojian Zhuang1-52/+20
Use i2c_dummy in 88pm860x driver to avoid using static in probe function. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd: Update irq handler in max8925Haojian Zhuang2-215/+467
Update thread irq handler. Simply the interface of using thread irq. 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>
2010-03-08mfd: Update i2c driver for max8925Haojian Zhuang1-28/+29
Update I2C driver in order to fit all of three I2C components in max8925. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd: Program twl4030 remap_sleep correctlyMike Turquette1-1/+1
Variable remap was incorrectly referencing remap_off for the remap_sleep case when configuring TWL4030 power scripts. Signed-off-by: Mike Turquette <mturquette@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd: Add initial WM8994 supportMark Brown3-0/+550
The WM8994 is a highly integrated ultra low power audio hub CODEC. Since it includes on-board regulators and GPIOs it is represented as a multi-function device, though the overwhelming majority of the functionality is provided by the ASoC CODEC driver. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd: htc-i2cpld depends on GPIOLIBRandy Dunlap1-1/+1
htc-i2cpld should depend on GPIOLIB, otherwise there are many build errors: drivers/mfd/htc-i2cpld.c:50: error: field 'chip_out' has incomplete type drivers/mfd/htc-i2cpld.c:54: error: field 'chip_in' has incomplete type drivers/mfd/htc-i2cpld.c:243: warning: type defaults to 'int' in declaration of '__mptr' drivers/mfd/htc-i2cpld.c:243: warning: initialization from incompatible pointer type drivers/mfd/htc-i2cpld.c:278: warning: type defaults to 'int' in declaration of '__mptr' drivers/mfd/htc-i2cpld.c:278: warning: initialization from incompatible pointer type drivers/mfd/htc-i2cpld.c:282: warning: type defaults to 'int' in declaration of '__mptr' drivers/mfd/htc-i2cpld.c:282: warning: initialization from incompatible pointer type drivers/mfd/htc-i2cpld.c:315: error: dereferencing pointer to incomplete type drivers/mfd/htc-i2cpld.c:322: warning: type defaults to 'int' in declaration of '__mptr' drivers/mfd/htc-i2cpld.c:322: warning: initialization from incompatible pointer type drivers/mfd/htc-i2cpld.c:467+: error: dereferencing pointer to incomplete type [19X] drivers/mfd/htc-i2cpld.c:490: error: implicit declaration of function 'gpiochip_add' drivers/mfd/htc-i2cpld.c:504: error: implicit declaration of function 'gpiochip_remove' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd: Remove leftover from discontinued TWL4030 battery patchChristoph Egger1-19/+0
The TWL4030_BCI_BATTERY config option originates from a patch to the omap git tree. However inclusion in linux was seemingly rejected and the functionality nears inclusion under a different name so this removes the bits of the old version that made it into the mainline kernel again. Signed-off-by: Christoph Egger <siccegge@stud.informatik.uni-erlangen.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd: Fix debugfs code in AB3100 OTP driverLinus Walleij1-6/+7
This fixes the aged and unreachable debugfs code in the AB3100 OTP driver so that it's (A) reachable and (B) works. Bug detected in parallell by Christoph Egger using VAMOS and Robert P. J. Day by his kernel scanning script. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Cc: Christoph Egger <siccegge@stud.informatik.uni-erlangen.de> Cc: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd: Use AB3100 MFD core IRQ for interrupt randomnessLinus Walleij2-10/+11
This reintroduces the entropy sampling of the AB3100 IRQ as the IRQF_SAMPLE_RANDOM is going out according to the feature removal schedule. I'm trying to do this the right way then, so CC:ing some random people for a quick review. We add entropy for interrupt events in the AB3100 which are truly random in nature, like external cables being connected, voltages on batteries dropping below certain ranges, ADC triggers or overheating. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Cc: Robin Getz <rgetz@blackfin.uclinux.org> Acked-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd: Add HTCPLD driverCory Maccarrone3-0/+720
This change introduces a driver for the HTC PLD chip found on some smartphones, such as the HTC Wizard and HTC Herald. It works through the I2C bus and acts as a GPIO extender. Specifically: * it can have several sub-devices, each with its own I2C address * Each sub-device provides 8 output and 8 input pins * The chip attaches to one GPIO to signal when any of the input GPIOs change -- at which point all chips must be scanned for changes This driver implements the GPIOs throught the kernel's GPIO and IRQ framework. This allows any GPIO-servicing drivers to operate on htcpld pins, such as the gpio-keys and gpio-leds drivers. Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd: Add subdevs in max8925Haojian Zhuang2-0/+143
Add subdevs in MAX8925. MAX8925 includes regulator, backlight and touch components. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd: Initial max8925 supportHaojian Zhuang4-0/+483
Basic Max8925 support, which is a power management IC from Maxim Semiconductor. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-08mfd: Append subdev into 88pm860x driverHaojian Zhuang1-12/+205
Append backlight, led & touch subdevs into 88pm860x driver. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
generated by cgit v1.2.3 (git 2.39.0) at 2025-02-26 17:32:40 +0300