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path: root/drivers/iio/adc/Kconfig
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2015-04-07Merge 4.0-rc7 into staging-nextGreg Kroah-Hartman
We want those fixes (iio primarily) into the -next branch to help with merge and testing issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-28iio/adc/cc10001_adc.c: Fix !HAS_IOMEM buildRichard Weinberger
Fixes: drivers/built-in.o: In function `cc10001_adc_probe': cc10001_adc.c:(.text+0x412e92): undefined reference to `devm_ioremap_resource' Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-03-12iio: adc: Kconfig mcp320x change description Add more ADCsSøren Andersen
Bring the Kconfig entry up to date with parts supported by the driver. Signed-off-by: Soeren Andersen <san@rosetechnology.dk> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-01-29iio: adc: Cosmic Circuits 10001 ADC driverPhani Movva
This commit adds support for Cosmic Circuits 10001 10-bit ADC device. Reviewed-by: Andrew Bresticker <abrestic@chromium.org> Signed-off-by: Phani Movva <Phani.Movva@imgtec.com> Signed-off-by: Naidu Tellapati <Naidu.Tellapati@imgtec.com> [ezequiel: code style cleaning] Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-01-28iio: vadc: Qualcomm SPMI PMIC voltage ADC driverStanimir Varbanov
The voltage ADC is peripheral of Qualcomm SPMI PMIC chips. It has 15bits resolution and register space inside PMIC accessible across SPMI bus. The vadc driver registers itself through IIO interface. Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com> Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-12-16Merge tag 'staging-3.19-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging driver updates from Greg KH: "Here's the big staging tree pull request for 3.19-rc1. We continued to delete more lines than were added, always a good thing, but not at a huge rate this release, only about 70k lines removed overall mostly from removing the horrid bcm driver. Lots of normal staging driver cleanups and fixes all over the place, well over a thousand of them, the shortlog shows all the horrid details. The "contentious" thing here is the movement of the Android binder code out of staging into the "real" part of the kernel. This is code that has been stable for a few years now and is working as-is in the tens of millions of devices with no issues. Yes, the code is horrid, and the userspace api leaves a lot to be desired, but it's not going to change due to legacy issues that we have no control over. Because so many devices and companies rely on this, and the code is stable, might as well promote it out of staging. This was all discussed at the Linux Plumbers conference, and everyone participating agreed that this was the best way forward. There is work happening to replace the binder code with something new that is happening right now, but I don't expect to see the results of that work for another year at the earliest. If that ever happens, and Android switches over to it, I'll gladly remove this version. As for maintainers, I'll be glad to maintain this code, I've been doing it for the past few years with no problems. I'll send a MAINTAINERS entry for it before 3.19-final is out, still need to talk to the Google developers about if they are willing to help with it or not, last I checked they were, which was good. All of these patches have been in linux-next for a while with no reported issues" * tag 'staging-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1382 commits) Staging: slicoss: Fix long line issues in slicoss.c staging: rtl8712: remove unnecessary else after return staging: comedi: change some printk calls to pr_err staging: rtl8723au: hal: Removed the extra semicolon lustre: Deletion of unnecessary checks before three function calls staging: lustre: fix sparse warnings: static function declaration staging: lustre: fixed sparse warnings related to static declarations staging: unisys: remove duplicate header staging: unisys: remove unneeded structure staging: ft1000 : replace __attribute ((__packed__) with __packed drivers: staging: rtl8192e: Include "asm/unaligned.h" instead of "access_ok.h" in "rtl819x_BAProc.c" Drivers:staging:rtl8192e: Fixed checkpatch warning Drivers:staging:clocking-wizard: Added a newline staging: clocking-wizard: check for a valid clk_name pointer staging: rtl8723au: Hal_InitPGData() avoid unnecessary typecasts staging: rtl8723au: _DisableAnalog(): Avoid zero-init variables unnecessarily staging: rtl8723au: Remove unnecessary wrapper _ResetDigitalProcedure1() staging: rtl8723au: _ResetDigitalProcedure1_92C() reduce code obfuscation staging: rtl8723au: Remove unnecessary wrapper _DisableRFAFEAndResetBB() staging: rtl8723au: _DisableRFAFEAndResetBB8192C(): Reduce code obfuscation ...
2014-11-25Merge branches 'ib-mfd-gpio-i2c-3.19', 'ib-mfd-iio-3.19' and ↵Lee Jones
'ib-mfd-regulator-v3.19', tag 'ib-mfd-regulator-clk-v3.19' into ibs-for-mfd-merged Immutable branch between MFD, Regulator and Clk, due for v3.19
2014-10-25iio: iadc: Qualcomm SPMI PMIC current ADC driverIvan T. Ivanov
The current ADC is peripheral of Qualcomm SPMI PMIC chips. It has 16 bits resolution and register space inside PMIC accessible across SPMI bus. The driver registers itself through IIO interface. Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-10-07iio: adc: Add support for axp288 adcJacob Pan
Platform driver for X-Powers AXP288 ADC, which is a sub-device of the customized AXP288 PMIC for Intel Baytrail-CR platforms. GPADC device enumerates as one of the MFD cell devices. It uses IIO infrastructure to communicate with userspace and consumer drivers. Usages of ADC channels include battery charging and thermal sensors. Based on initial work by: Ramakrishna Pallala <ramakrishna.pallala@intel.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-08-07iio: adc: exynos_adc: Add support for s3c24xx ADCChanwoo Choi
This patch add support for s3c2410/s3c2416/s3c2440/s3c2443 ADC. The s3c24xx is alomost same as ADCv1. But, There are a little difference as following: - ADCMUX register address - ADCDAT mask (10 bit or 12 bit ADC resolution according to SoC version) - s3c24xx/s3c64xx has not included ADC_PHY enable register Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-08-07iio: adc: add driver for Rockchip saradcHeiko Stübner
The ADC is a 3-channel signal-ended 10-bit Successive Approximation Register (SAR) A/D Converter. It uses the supply and ground as its reference and converts the analog input signal into 10-bit binary digital codes. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Hartmut Knaack <knaack.h@gmx.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-08-07iio: adc: Add TI ADC128S052Angelo Compagnucci
This patch adds support for ADC128S052 from TI. Signed-off-by: Angelo Compagnucci <angelo.compagnucci@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-07-08staging:iio:ad7291: Move out of stagingLars-Peter Clausen
The ad7291 driver is in a reasonable shape. It does not use non-standard API/ABI and there are no major style issues with the driver. So this patch moves it out of staging. There is one small warning from checkpatch which is also fixed in this patch. The patch also sorts the #include directives in alphabetical order. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-06-29Merge tag 'iio-for-3.17b' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: Second round of new drivers and cleanups for IIO in the 3.17 cycle. New drivers * mcp4902, mcp4912 and mcp4922 SPI DAC driver. * max1027, max1029 and max1031 SPI ADC driver. Cleanups * cm32181 - use devm APIs to simplify error paths. * ak8975 - use devm APIs to simplify error paths. * ad9850 - drop some unused defines and an unnecessary goto. * hmc5843 - add missing devices to the device id table and the documentation. * ad9832 - small formatting cleanups. * sca3000 - hide direct use of the stufftoread element by adding a data_available function. This is a precursor for the addition of buffer watermarks to the subsystem but stands as a good cleanup on its own.
2014-06-28iio: add support of the max1027Philippe Reynes
This driver add partial support of the maxim 1027/1029/1031. Differential mode is not supported. It was tested on armadeus apf27 board. Signed-off-by: Philippe Reynes <tremyfr@yahoo.fr> Reviewed-by: Hartmut Knaack <knaack.h@gmx.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-05-25Merge tag 'iio-for-3.16c' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: Third round of new stuff for IIO in the 3.16 cycle. This (rather late) set consists only of fixes to patches earlier in the cycle or minor fixes for other problems (such as randconfig build issues picked up by Arnd). I've included the general minor fixes here as it is very late in the current cycle and they can all wait for the merge window. * Recent change to hid-sensors introduced a possible infinite loop due to a typo. In the same series, a report interval unit read was added but in the case where the hardware doesn't support it a value of 0 would lead to some nasty issues. The patch sets it to the specified default of msecs. * Anon inodes were used by IIO without being explicitly selected. This has been true for a long time so it clearly only effects rather unusual configurations (rand configs) * at91 requires the input subsytem but this wasn't explicity in the Kconfig. * A couple of parts supported by the max1363 driver were using the wrong iio_chan_spec arrays and hence would missreport their bit depths. This has been there a long time and was never right so isn't a regression.
2014-05-22Merge 3.15-rc6 into staging-next.Greg Kroah-Hartman
This resolves the conflicts in the files: drivers/iio/adc/Kconfig drivers/staging/rtl8723au/os_dep/usb_ops_linux.c Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-10iio:adc: at91 requires the input subsystemArnd Bergmann
Building the at91 adc driver with CONFIG_INPUT disabled results in this build error: ERROR: "input_event" [drivers/iio/adc/at91_adc.ko] undefined! ERROR: "input_unregister_device" [drivers/iio/adc/at91_adc.ko] undefined! ERROR: "input_free_device" [drivers/iio/adc/at91_adc.ko] undefined! ERROR: "input_register_device" [drivers/iio/adc/at91_adc.ko] undefined! ERROR: "input_set_abs_params" [drivers/iio/adc/at91_adc.ko] undefined! ERROR: "input_allocate_device" [drivers/iio/adc/at91_adc.ko] undefined! To make sure we can build random configurations, this adds a Kconfig dependency on CONFIG_INPUT, as we do for other similar drivers. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: linux-iio@vger.kernel.org Cc: Josh Wu <josh.wu@atmel.com> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-04-26Merge tag 'iio-for-3.16a' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: First round of IIO new driver, functionality and cleanups for the 3.16 cycle. New device support * AS3935 Lightning Sensor * MCP3426/7/8 support added to the existing MCP3422 ADC driver * AK8963 support in the AK8975 driver * MPU6500 support in the MPU6050 driver (the functionality that is different is mostly not supported yet in either part). Staging Graduations * AD799x ADC New functionality * ACPI enumeration for the ak8975 driver Cleanup / tweaks * Use snprintf as a matter of good practice in a few additional places. * Document *_mean_raw attributes. These have been there a while, but were undocumented. * Add an in kernel interface to get the mean values. * Bug in the length of the event info mask that by coincidence wasn't yet actually causing any problems. * itg3000 drop an unreachable return statement. * spear_adc cleanups (heading for a staging graduation but a few more issues showed up in the review of these patches). * Exynos ADC dependencies changed so it is only built when Exynos is present or COMPILE_TEST and OF are set. * tsl2583 cleanups. * Some cut and paste typos in the comments of various drivers still in staging. * Couple of minor improvements to the ST sensor drivers.
2014-04-26iio: adc: Nothing in ADC should be a bool CONFIGDoug Anderson
The whole IIO subsystem can be built as modules. If you make it a module then stuff marked as "Y" in the adc directory simply won't be linked in properly. The two configs that were wrong were EXYNOS_ADC and LP8788_ADC. I know for a fact that EXYNOS_ADC will work as a module. I assume LP8788_ADC will also be fine. Signed-off-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-04-11iio: adc: Fix exynos_adc dependenciesJean Delvare
EXYNOS_ADC shouldn't only depend on OF. It is useless on architectures other than Exynos so it should depend on ARCH_EXYNOS (which implies OF.) Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Jonathan Cameron <jic23@kernel.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-04-07Merge tag 'mfd-for-linus-3.15' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "Changes to existing drivers: - Use of managed resources - omap, twl4030, ti_am335x_tscadc - Advanced error handling - omap - Rework clk management - omap - Device Tree (re-)work - tc3589x, pm8921, da9055, sec - IRC management overhaul and !BROKEN - pm8921 - Convert to regmap - ssbi, pm8921 - Use simple power-management ops - ucb1x00 - Include file clean-up - adp5520, cs5535, janz, lpc_ich, - lpc_sch, max14577, mcp-sa11x0, pcf50633-adc, rc5t583, rdc321x-southbridge, retu, smsc-ece1099, ti-ssp, ti_am335x_tscadc, tps65912, vexpress-config, wm8350, ywm8350 - Various bug fixes across the subsystem - NULL/invalid pointer dereference prevention - Resource leak mitigation, - Variable used initialised - Staticise various containers - Enforce return value checks New drivers/supported devices: - Add support for s2mps14 and s2mpa01 to sec - Add support for da9063 (v5) to da9063 - Add support for atom-c2000 to gpio-ich - Add support for come-{mbt10,cbt6,chl6} to kempld - Add support for da9053 to da9052 - Add support for itco-wdt (v3) and baytrail to lpc_ich - Add new drivers for tps65218, rtsx_usb, bcm590xx (Re-)moved drivers: - twl4030 ==> drivers/iio - ti-ssp ==> /dev/null" * tag 'mfd-for-linus-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (103 commits) mfd: wm5110: Correct default for HEADPHONE_DETECT_1 mfd: arizona: Correct small errors in the DT binding documentation mfd: arizona: Mark DSP clocking register as volatile mfd: devicetree: bindings: Add pm8xxx RTC description mfd: kempld-core: Fix potential hang-up during boot mfd: sec-core: Fix uninitialized 'regmap_rtc' on S2MPA01 mfd: tps65910: Fix regmap_irq_chip_data leak on mfd_add_devices fail mfd: tps65910: Fix possible invalid pointer dereference on regmap_add_irq_chip fail mfd: sec-core: Fix I2C dummy device resource leak on probe failure mfd: sec-core: Add of_compatible strings for clock MFD cells mfd: Remove obsolete ti-ssp driver Documentation: mfd: s2mps11: Describe S5M8767 and S2MPS14 clocks mfd: bcm590xx: Fix type argument for module device table mfd: lpc_ich: Add support for Intel Bay Trail SoC mfd: lpc_ich: Add support for NM10 GPIO mfd: lpc_ich: Change Avoton to iTCO v3 watchdog: iTCO_wdt: Add support for v3 silicon mfd: lpc_ich: Add support for iTCO v3 mfd: lpc_ich: Remove lpc_ich_cfg struct use mfd: lpc_ich: Only configure watchdog or GPIO when present ...
2014-04-01Merge tag 'staging-3.15-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging driver updates from Greg KH: "Here's the huge drivers/staging/ update for 3.15-rc1. Loads of cleanup fixes, a few drivers removed, and some new ones added. All have been in linux-next for a while" * tag 'staging-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1375 commits) staging: xillybus: XILLYBUS_PCIE depends on PCI_MSI staging: xillybus: Added "select CRC32" for XILLYBUS in Kconfig staging: comedi: poc: remove obsolete driver staging: unisys: replace kzalloc/kfree with UISMALLOC/UISFREE staging: octeon-usb: prevent memory corruption staging: usbip: fix line over 80 characters staging: usbip: fix quoted string split across lines Staging: unisys: Remove RETINT macro Staging: unisys: Remove FAIL macro Staging: unisys: Remove RETVOID macro Staging: unisys: Remove RETPTR macro Staging: unisys: Remove RETBOOL macro Staging: unisys: Remove FAIL_WPOSTCODE_1 macro Staging: unisys: Cleanup macros to get rid of goto statements Staging: unisys: include: Remove unused macros from timskmod.h staging: dgap: fix the rest of the checkpatch warnings in dgap.c Staging: bcm: Remove unnecessary parentheses staging: wlags49_h2: Delete unnecessary braces staging: wlags49_h2: Do not use assignment in if condition staging: wlags49_h2: Enclose macro in a do-while loop ...
2014-03-18mfd: twl4030-madc: Move driver to drivers/iio/adcSebastian Reichel
This is a driver for an A/D converter, which belongs into drivers/iio/adc. Signed-off-by: Sebastian Reichel <sre@debian.org> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-03-16Add support for Microchip Technology's MCP3426/7/8 ADCAngelo Compagnucci
This patch extends previous mcp3422 driver to support missing members of the family, mcp3426/7/8. Signed-off-by: Angelo Compagnucci <angelo.compagnucci@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-03-16staging:iio: Move ad799x driver out of stagingLars-Peter Clausen
The driver is now at a reasonable quality level. Move it out of staging. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Hartmut Knaack <knaack.h@gmx.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-03-01iio:adc: Add Xilinx XADC driverLars-Peter Clausen
The Xilinx XADC is a ADC that can be found in the series 7 FPGAs from Xilinx. The XADC has a DRP interface for communication. Currently two different frontends for the DRP interface exist. One that is only available on the ZYNQ family as a hardmacro in the SoC portion of the ZYNQ. The other one is available on all series 7 platforms and is a softmacro with a AXI interface. This driver supports both interfaces and internally has a small abstraction layer that hides the specifics of these interfaces from the main driver logic. The ADC has a couple of internal channels which are used for voltage and temperature monitoring of the FPGA as well as one primary and up to 16 channels auxiliary channels for measuring external voltages. The external auxiliary channels can either be directly connected each to one physical pin on the FPGA or they can make use of an external multiplexer which is responsible for multiplexing the external signals onto one pair of physical pins. The voltage and temperature monitoring channels also have an event capability which allows to generate a interrupt when their value falls below or raises above a set threshold. Buffered sampling mode is supported by the driver, but only for AXI-XADC since the ZYNQ XADC interface does not have capabilities for supporting buffer mode (no end-of-conversion interrupt). If buffered mode is supported the driver will register two triggers. One "xadc-samplerate" trigger which will generate samples with the configured samplerate. And one "xadc-convst" trigger which will generate one sample each time the CONVST (conversion start) signal is asserted. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-02-28iio: adc: Add MEN 16z188 ADC driverJohannes Thumshirn
Add support for MEN 16z188 ADC IP Core on MCB FPGAs. Signed-off-by: Johannes Thumshirn <johannes.thumshirn@men.de> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-15iio:adc:imx: add Freescale Vybrid vf610 adc driverFugang Duan
Add Freescale Vybrid vf610 adc driver. The driver only support ADC software trigger. VF610 ADC device documentation is available at below reference manual (chapter 37): http://cache.freescale.com/files/32bit/doc/ref_manual/VYBRIDRM.pdf? fpsp=1&WT_TYPE=Reference%20Manuals&WT_VENDOR=FREESCALE&WT_FILE_FORMAT =pdf&WT_ASSET=Documentation CC: Shawn Guo <shawn.guo@linaro.org> CC: Jonathan Cameron <jic23@kernel.org> CC: Mark Rutland <mark.rutland@arm.com> CC: Otavio Salvador <otavio@ossystems.com.br> CC: Peter Meerwald <pmeerw@pmeerw.net> CC: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Fugang Duan <B38611@freescale.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-28iio:ti_am335x_adc ensure that IIO_KFIFO_BUF is not selected witout IIO_BUFFERJonathan Cameron
This avoids build problems such iio_push_to_buffers* not being defined. Signed-off-by: Jonathan Cameron <jic23@kernel.org> Reported-by: kbuild test robot <fengguang.wu@intel.com>
2013-09-21iio: ti_am335x_adc: Add continuous sampling supportZubair Lutfullah
Previously the driver had only one-shot reading functionality. This patch adds continuous sampling support to the driver. Continuous sampling starts when buffer is enabled. HW IRQ wakes worker thread that pushes samples to userspace. Sampling stops when buffer is disabled by userspace. Patil Rachna (TI) laid the ground work for ADC HW register access. Russ Dill (TI) fixed bugs in the driver relevant to FIFOs and IRQs. I fixed channel scanning so multiple ADC channels can be read simultaneously and pushed to userspace. Restructured the driver to fit IIO ABI. And added INDIO_BUFFER_HARDWARE mode. Signed-off-by: Zubair Lutfullah <zubair.lutfullah@gmail.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Russ Dill <Russ.Dill@ti.com> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-07iio: adc: Add driver for Microchip MCP3422/3/4 high resolution ADCAngelo Compagnucci
Sysfs access to all channels. Signed-off-by: Angelo Compagnucci <angelo.compagnucci@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-17iio: twl6030-gpadc: TWL6030, TWL6032 GPADC driverOleksandr Kozaruk
The GPADC is general purpose ADC found on TWL6030, and TWL6032 PMIC, known also as Phoenix and PhoenixLite. The TWL6030 and TWL6032 have GPADC with 17 and 19 channels respectively. Some channels have current source and are used for measuring voltage drop on resistive load for detecting battery ID resistance, or measuring voltage drop on NTC resistors for external temperature measurements. Some channels measure voltage, (i.e. battery voltage), and have voltage dividers, thus, capable to scale voltage. Some channels are dedicated for measuring die temperature. Some channels are calibrated in 2 points, having offsets from ideal values kept in trim registers. This is used to correct measurements. The differences between GPADC in TWL6030 and TWL6032: - 10 bit vs 12 bit ADC; - 17 vs 19 channels; - channels have different purpose(i.e. battery voltage channel 8 vs channel 18); - trim values are interpreted differently. Based on the driver patched from Balaji TK, Graeme Gregory, Ambresh K, Girish S Ghongdemath. Signed-off-by: Balaji T K <balajitk@ti.com> Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk> Signed-off-by: Oleksandr Kozaruk <oleksandr.kozaruk@ti.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-03iio: adc: Update ti_am335x_adc Kconfig entrySachin Kamat
Make the string more readable to distinguish it from other TI ADCs. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-03iio: Add a comment to about alphabetical order to Kconfigs and MakefilesLars-Peter Clausen
Keeping Makefile and Kconfig entries in alphabetical order usually works better than just appending new entries at the end, since it reduces the amount of conflicts. This patch adds a comment to the IIO Kconfig and Makefile files to document that the entries should be kept in alphabetical order. Also reorder those entries which weren't in alphabetical order yet. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-03iio: Add Nuvoton NAU7802 ADC driverAlexandre Belloni
The Nuvoton NAU7802 ADC is a 24-bit 2-channels I2C ADC, with adjustable gain and sampling rates. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-05-22iio: adc: add driver for MCP3204/08 12-bit ADCOskar Andero
This adds support for Microchip's 12 bit AD converters MCP3204 and MCP3208. These chips communicates over SPI and supports single-ended and pseudo-differential configurations. Signed-off-by: Oskar Andero <oskar.andero@gmail.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-03-17iio:adc:ad7923: Add support for the ad7904/ad7914/ad7924Lars-Peter Clausen
The ad7924 is software compatible with the ad7923. The ad7904 and ad7914 are the 8 and 10 bit version of the ad7924. While we are at it also drop the "with temperature sensor" from the Kconfig entry, since the chips do not have a temperature sensor. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: Patrick Vasseur <patrick.vasseur@c-s.fr> Cc: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-03-17iio: adc: Kconfig: exynos_adc depends on CONFIG_OFNaveen Krishna Chatradhi
As the exynos_adc driver only supports device tree registration. Making driver depend on CONFIG_OF solves possible errors during probe. Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Doug Anderson <dianders@chromium.org> Cc: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-03-16iio: adc: add exynos adc driver under iio framworkNaveen Krishna Chatradhi
This patch adds New driver to support: 1. Supports ADC IF found on EXYNOS4412/EXYNOS5250 and future SoCs from Samsung 2. Add ADC driver under iio/adc framework 3. Also adds the Documentation for device tree bindings Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-03-16IIO ADC support for AD7923Christophe Leroy
This patch adds support for Analog Devices AD7923 ADC in the IIO Subsystem. Signed-off-by: Patrick Vasseur <patrick.vasseur@c-s.fr> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-01-26iio: fix Kconfig for max1363Peter Meerwald
ERROR: "iio_triggered_buffer_setup" [drivers/iio/adc/max1363.ko] undefined! ERROR: "iio_triggered_buffer_cleanup" [drivers/iio/adc/max1363.ko] undefined! add select IIO_TRIGGERED_BUFFER IIO_TRIGGERED_BUFFER in turn selects IIO_TRIGGER and IIO_KFIFO_BUF, so drop those MAX1363_RING_BUFFER is not used anymore Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-12-17Merge 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 ...
2012-11-30iio: adc: Add Texas Instruments ADC081C021/027 supportThierry Reding
Add support for reading conversion results from the ADC and provide them through a single IIO channel. A proper scaling factor is also exported based on the reference voltage provided by a regulator. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-11-30staging:iio: Move ad7793 driver out of stagingLars-Peter Clausen
The driver does not expose any custom API to userspace and none of the standard static code checker tools report any issues, so move it out of staging. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-11-20iio: adc: Add viperboard adc driverLars Poeschel
This adds the mfd cell to use the adc part of the Nano River Technologies viperboard. Signed-off-by: Lars Poeschel <poeschel@lemonage.de> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-19staging:iio: Move the ad7298 driver out of stagingLars-Peter Clausen
The driver does not expose any custom API to userspace and none of the standard static code checker tools report any issues, so move it out of staging. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-11-10iio:adc:max1363 move from staging.Jonathan Cameron
Now this driver is using kfifo we can move it out of staging. Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-11-05IIO : ADC: tiadc: Add support of TI's ADC driverPatil, Rachna
This patch adds support for TI's ADC driver. This is a multifunctional device. Analog input lines are provided on which voltage measurements can be carried out. You can have upto 8 input lines. Signed-off-by: Patil, Rachna <rachna@ti.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-05staging:iio: Move the ad7887 driver out of stagingLars-Peter Clausen
The driver does not expose any custom API to userspace and none of the standard static code checker tools report any issues, so move it out of staging. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>