summaryrefslogtreecommitdiffstats
path: root/drivers/iio/adc (follow)
Commit message (Collapse)AuthorAgeFilesLines
* Merge tag 'staging-3.9-rc1' of ↵Linus Torvalds2013-02-213-115/+74
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging tree update from Greg Kroah-Hartman: "Here's the big staging tree merge for 3.9-rc1 Lots of cleanups and updates for drivers all through the staging tree. We are pretty much "code neutral" here, adding just about as many lines as we removed. All of these have been in linux-next for a while." * tag 'staging-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (804 commits) staging: comedi: vmk80xx: wait for URBs to complete staging: comedi: drivers: addi-data: hwdrv_apci3200.c: Add a missing semicolon staging: et131x: Update TODO list staging: et131x: Remove assignment of skb->dev staging: wlan-ng: hfa384x.h: fix for error reported by smatch staging/zache checkpatch ERROR: spaces prohibited around that staging/ozwpan: Mark read only parameters and structs as const staging/ozwpan: Remove empty and unused function oz_cdev_heartbeat staging/ozwpan: Mark local functions as static (fix sparse warnings) staging/ozwpan: Add missing header includes staging/usbip: Mark local functions as static (fix sparse warnings) staging/xgifb: Remove duplicated code in loops. staging/xgifb: Consolidate return paths staging/xgifb: Remove code without effect staging/xgifb: Remove unnecessary casts staging/xgifb: Consolidate if/else if with identical code branches staging: vt6656: replaced custom TRUE definition with true staging: vt6656: replaced custom FALSE definition with false staging: vt6656: replace custom BOOL definition with bool staging/rtl8187se: Mark functions as static to silence sparse ...
| * iio/adc: (max1363) Add support for external reference voltageGuenter Roeck2013-02-061-13/+39
| | | | | | | | | | | | | | Implement external reference voltage as regulator named "vref". Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * iio: max1363: Use devm_ functions whereever possible to allocate resourcesGuenter Roeck2013-02-061-19/+10
| | | | | | | | | | Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * Merge tag 'iio-for-3.9c' of ↵Greg Kroah-Hartman2013-02-052-15/+9
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: "Third set of IIO new drivers, cleanups and fixes for the 3.9 cycle New drivers 1) A driver for ST microelectronics sensors. This driver already covers a large set of new parts (20 gyros, accelerometer and magnetometers) not currently covered by the existing drivers. The intent moving forward is to merge this with the other drivers for similar parts already in tree. The lis3l02dq driver currently in staging/iio will be trivial, the lis3 driver in misc more complex as it has a number of additional interfaces. Any merging in of the lis3 driver will rely on the not currently merged iio_input bridge driver and handling of freefall notifications etc. 2) A driver for the itg3200 gyroscope. Graduations from staging 1) Cleanup and move out of staging of the adxrs450 gyroscope driver. The cleanup required was all minor but there were a couple of fixes hidden in there. Core and driver additions 1) Initial work from Guenter Roeck on device tree support for IIO's provider/ consumer code. Focuses on the iio_hwmon driver and the max1363 adc driver. The full device tree syntax is currently under discussion but should follow shortly. Cleanups and fixes 1) Remove a noop function __iio_update_buffer 2) Couple of small fixes and cleanups for the max1363 "
| | * iio: Simplify iio_map_array_unregister APIGuenter Roeck2013-02-022-11/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of requiring the map to unregister, simply unregister all map entries associated with the given iio device. This simplifies map removal and also works for maps generated through devicetree. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * iio/adc: (max1363) Fix data conversion problemsGuenter Roeck2013-02-021-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For chips with more than 8 bit ADC resolution, received data was always masked against 0xfff, ie with a 12 bit mask. This can result in bad data for chips with 10 bit resolution if those chips have higher bits set (seen with MAX1139). The receive buffer was defined as char array. This could result in unintentional sign extensions if the upper bit in a received byte was set. Since the chip is configured for unipolar mode, we never have to handle negative values, and sign extensions are never needed. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * iio/adc: (max1363) Remove duplicate codeGuenter Roeck2013-02-021-2/+0
| | | | | | | | | | | | | | | Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * iio/adc: (max1363) Provide OF node information to iio deviceGuenter Roeck2013-02-021-0/+1
| | | | | | | | | | | | | | | Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * iio/adc: (lp8788) Provide OF node information to iio deviceGuenter Roeck2013-02-021-0/+1
| | | | | | | | | | | | | | | Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | iio:max1363 remove some functions left after mergeJonathan Cameron2013-02-021-42/+0
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | merge commit 17cb3be61b45d716f6b21a9380925493413ce0ed seems to have resulted in two functions that were removed in 4389fbec5b8fd0577c1e854ff5d7139329558c20 reappearing. Spotted due to a build kicking out drivers/iio/adc/max1363.c:1486:12: warning: 'max1363_register_buffered_funcs_and_init' defined but not used drivers/iio/adc/max1363.c:1521:13: warning: 'max1363_buffer_cleanup' defined but not used This patch just removes them again. Signed-off-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * iio: fix Kconfig for max1363Peter Meerwald2013-01-261-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * Merge 3.8-rc5 into staging-nextGreg Kroah-Hartman2013-01-2610-35/+77
| |\ | | | | | | | | | | | | | | | This resolves a merge issue with a iio driver, and the zram code. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * \ Merge branch 'staging-linus' into staging-nextGreg Kroah-Hartman2013-01-083-9/+12
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is to get the comedi fixes, and resolve the issue in comdi_test.c and comedi_fops.c that were caused by changes in both branches. It also allows the fwserial driver changes to be applied, as they required the fixes that are in staging-linus. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | iio: lp8788_adc: fix parent device in kernel messageKim, Milo2013-01-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Use 'dev' of iio device in a kernel message rather than i2c client device node. Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: lp8788_adc: fix a parent device in _probe()Kim, Milo2013-01-061-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The lp8788-adc is a platform driver of lp8788-mfd. The platform device is allocated when mfd_add_devices() is called in lp8788-mfd. On the other hand, 'lp->dev' is the i2c client device. Therefore, this 'platform_device' is a proper parent device of iio device and device kernel message. Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: max1363 comment and whitespace fixesPeter Meerwald2013-01-011-8/+7
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: cleanup buffer setup code in max1363 driverPeter Meerwald2013-01-011-54/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | use iio_triggered_buffer_setup(), iio_triggered_buffer_cleanup() Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* | | | iio: Convert to devm_ioremap_resource()Thierry Reding2013-01-221-3/+3
| |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | Convert all uses of devm_request_and_ioremap() to the newly introduced devm_ioremap_resource() which provides more consistent error handling. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | Merge tag 'staging-3.8-rc3' of ↵Linus Torvalds2013-01-143-9/+12
|\ \ \ | | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging fixes from Greg Kroah-Hartman: "Here are a number of small fixes to staging drivers for your 3.8-rc3 tree. Well, the omapdrm fixes aren't really "small" but they were waiting on a number of other drm patches to go in through the drm tree, and got delayed by my vacation over the holidays. They are totally self-contained, everyone involved have acked them, and they fix issues that people have been having with the driver. Other than that one, it's a bunch of tiny bugfixes for a number of reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'staging-3.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (36 commits) staging: zram: fix invalid memory references during disk write staging: tidspbridge: use prepare/unprepare on dsp clocks staging: tidspbridge: Fix build breakage due to splitting CM functions. staging: comedi: comedi_test: fix race when cancelling command staging: comedi: Kconfig: COMEDI_NI_AT_A2150 should select COMEDI_FC staging: comedi: prevent auto-unconfig of manually configured devices staging: comedi: fix minimum AO period for NI 625x and NI 628x staging: vme_pio2: fix oops on module unloading staging: speakup: avoid out-of-range access in synth_add() staging: speakup: avoid out-of-range access in synth_init() staging: rtl8192e: Fix failure to check pci_map_single() staging: rtl8187se: Fix failure to check pci_map_single() staging: drm/imx: fix double free bug in error path staging: drm/imx: several bug fixes staging: drm/imx: check return value of ipu_reset() staging: drm/omap: fix flags in dma buf exporting staging: drm/omap: use omapdss low level API staging/fwserial: Update TODO file per reviewer comments staging/fwserial: Limit tx/rx to 1394-2008 spec maximum staging/fwserial: Refine Kconfig help text ...
| * | iio: (max1363) Fix probe error pathGuenter Roeck2012-12-271-7/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instantiating the driver with no available regulator results in: [39711.686393] i2c i2c-7: new_device: Instantiated device max1139 at 0x35 [39711.688687] BUG: unable to handle kernel paging request at fffffffffffffe13 [39711.688734] IP: [<ffffffff813e835b>] regulator_disable+0x1b/0x80 [39711.688788] PGD 1c0e067 PUD 1c0f067 PMD 0 [39711.688835] Oops: 0000 [#1] SMP Caused by bad probe error path. Fix it. Driver should also not attempt to free the interrupt in its error path if none was allocated. Fix that problem as well. Finally, testing if the regulator was allocated is not necessary in the remove function, since the probe function bails out if this is the case. Remove that check. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | iio: adc: ad7266: Don't set error code to st->vref_uvAxel Lin2012-12-271-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | regulator_get_voltage() may return negative error code. Add error checking to avoid setting error code to st->vref_uv. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | iio: at91: fix dev var name in at91_adc_trigger_handlerJean-Christophe PLAGNIOL-VILLARD2012-12-271-1/+1
| |/ | | | | | | | | | | | | | | | | | | /opt/work/linux-2.6/drivers/iio/adc/at91_adc.c: In function 'at91_adc_trigger_handler': /opt/work/linux-2.6/drivers/iio/adc/at91_adc.c:83:22: error: 'indio_dev' undeclared (first use in this function) /opt/work/linux-2.6/drivers/iio/adc/at91_adc.c:83:22: note: each undeclared identifier is reported only once for each function it appears in Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: linux-iio@vger.kernel.org Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* / Drivers: iio: remove __dev* attributes.Greg Kroah-Hartman2013-01-0410-35/+35
|/ | | | | | | | | | | | | | | CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'mfd-3.8-1' of ↵Linus Torvalds2012-12-174-1/+457
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 ...
| * iio: adc: Add viperboard adc driverLars Poeschel2012-11-203-0/+189
| | | | | | | | | | | | | | | | | | | | 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>
| * IIO : ADC: tiadc: Add support of TI's ADC driverPatil, Rachna2012-11-053-0/+268
| | | | | | | | | | | | | | | | | | | | | | | | 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>
* | iio: adc: Add Texas Instruments ADC081C021/027 supportThierry Reding2012-11-303-0/+173
| | | | | | | | | | | | | | | | | | | | 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>
* | iio:ad7793: Add support for the ad7796 and ad7797Lars-Peter Clausen2012-11-301-12/+109
| | | | | | | | | | | | | | | | | | | | | | | | | | The ad7796 and ad7797 are similar to the ad7792 and ad7793 but only have a single differential input instead of two. Also some other features are missing like the programmable gain amplifier and also not all sampling frequencies supported by the ad7792/ad7793 are supported by the ad7796/ad7797. This patch adds new feature flags for the features not present in the ad7796/ad7797. The patch also adds a struct iio_info field to the chip_info struct, this becomes necessary since the ad7796/ad7797 needs a special set of sysfs attributes. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* | iio:ad7793: Add support for the ad7798 and ad7799Lars-Peter Clausen2012-11-301-14/+102
| | | | | | | | | | | | | | | | | | | | | | | | The ad7798 and ad7799 are similar to the ad7792 and ad7793 but are missing some features like the temperature sensor, being able to use an external clocksource and a few other things. This patch adds a new 'flags' fields to the chip_info struct which allows to specify which features a certain chip variant supports. The setup code will then ignore any platform data fields which are related to non supported features. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* | staging:iio: Move ad7793 driver out of stagingLars-Peter Clausen2012-11-303-0/+704
| | | | | | | | | | | | | | | | 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>
* | iio:adc:ad7298 make the tx and rx buffers __be16Jonathan Cameron2012-11-211-2/+2
| | | | | | | | | | | | | | | | | | | | These buffers are a little interesting in that their content may have variable endianness, but all but one element will definitely be big endian. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> Acked-by: Lars-Peter Clausen <lars@metafoo.de>
* | staging:iio: Move the ad7298 driver out of stagingLars-Peter Clausen2012-11-193-0/+421
| | | | | | | | | | | | | | | | 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>
* | iio:adc:max1363 move from staging.Jonathan Cameron2012-11-103-0/+1719
| | | | | | | | | | | | Now this driver is using kfifo we can move it out of staging. Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* | staging:iio: Add support for multiple buffersJonathan Cameron2012-11-105-7/+5
| | | | | | | | | | | | | | | | | | Route all buffer writes through the demux. Addition or removal of a buffer results in tear down and setup of all the buffers for a given device. Signed-off-by: Jonathan Cameron <jic23@kernel.org> Tested-by: srinivas pandruvada <srinivas.pandruvada@intel.com>
* | staging:iio: Move the ad7887 driver out of stagingLars-Peter Clausen2012-11-053-0/+392
| | | | | | | | | | | | | | | | 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>
* | Revert "iio: at91_adc: Use devm_kcalloc to allocate arrays"Axel Lin2012-10-311-6/+10
| | | | | | | | | | | | | | | | This reverts commit 45259859492812c8b700ae1d157be01a8d2babfe. This fixes build error because devm_kcalloc does not exist in current tree. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* | iio: at91_adc: Use devm_kcalloc to allocate arraysLars-Peter Clausen2012-10-191-10/+6
| | | | | | | | | | | | | | | | | | | | | | | | Use dev_kcalloc instead of devm_kzalloc to allocate arrays since it is semantically more appropriate. While we are at it the patch also fixes the following coccinelle warning: drivers/iio/adc/at91_adc.c:277:25-31: ERROR: application of sizeof to pointer Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-By: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* | iio: use iio_push_to_buffer() in at91 driverPeter Meerwald2012-10-191-1/+1
| | | | | | | | | | | | Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* | iio: remove useless irq_enabled variable in at91Peter Meerwald2012-10-191-3/+0
|/ | | | | | | | irq_enabled is only set, but never read Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: adc: add new lp8788 adc driverKim, Milo2012-09-223-0/+271
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | TI LP8788 PMU provides regulators, battery charger, ADC, RTC, backlight driver and current sinks. This patch enables the LP8788 ADC functions. The LP8788 ADC has several ADC input selection and supports 12bit resolution. Internal operation of getting ADC is access to registers of LP8788. The LP8788 ADC uses exported functions for accessing these registers. (exported by LP8788 MFD device driver) This driver supports IIO_CHAN_INFO_RAW and SCALE. So the IIO consumer can calculate the value with raw and scale. The unit of scale is micro. (ADC Input Selection) Voltage: battery voltage (MAX 5.0, 5.5 and 6.0V) charger input voltage four general ADC inputs coin cell voltage Current: battery charging current Temperature: IC temperature (The IIO map for the IIO consumer) The ADC input is configurable in the platform side. Even though this platform data is not defined, the default IIO map is created for supporting the power supply driver. The battery voltage and temperature are used inside this driver. (History) Patch v6. (a) Fix scale value for each ADC input selection Voltage and current type are mili unit and temperature is degree. To calculate the IC temperature, temp = raw * scaleint + (raw * scalepart)/ 1000000, scaleint is always 0. = raw * 0.061050, raw: 0 ~ 4095 Then range of IC temperature(ADC result) is 0 ~ 250'C (b) Reorganization of the IIO channel Spec Remove address, scan_type and scan_index and rollback the datasheet name. The reason why 'address' field is unnecessary is no relation with each channel. Moreover, to get the raw ADC value, the address info is not only one register but also several registers. Therefore specific function(lp8788_get_adc_result) is called rather than using one 'address' field. (c) Fix coding style Remove duplicated checking routine while unregistering the IIO map. Fix code for space and parenthesis. Patch v5. Fix default consumer name as 'lp8788-charger'. Add mutex for ADC read operation. Reorganization on lp8788_adc_read_raw(). Patch v4. Fix adc_raw function: support RAW and SCALE channel info. Change LP8788 ADC platform data - iio map. Enables the default IIO map. Patch v3. Fix wrong size of allocating iio private data. Fix coding styles. Patch v2. Support RAW and SCALE interface for IIO consumer. Clean up the iio channel spec macro. Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* Merge tag 'iio-for-v3.7d' of ↵Greg Kroah-Hartman2012-09-173-0/+348
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next IIO new drivers, features and rework for the 3.7 cycle, 4th set. Here we have 1) a set cleaning up and moving the ad7476 driver out of staging. Support for a number of additional parts is also added to that driver. 2) cleanups from various people for the in kernel interface code as that is getting more an more real use and hence people are picking up on minor issues that made it through review. Also a related useful set of utility functions to avoid duplicate code for converting IIO representations to other forms. 3) a new fractional type for our read_raw / write_raw functions. This allows avoiding loss of accuracy via the in kernel interfaces in some cases as well as being rather convenient for a lot of range -> scale conversions. 4) New AD5755 DAC driver. 5) Some Blackfin timer trigger improvements including hardware pulse control for device triggering. 6) Support for the ad7091r in the ad7476 driver.
| * iio: ad7476: Add support for the ad7091rLars-Peter Clausen2012-09-171-4/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for the ad7091r 12 bit ADC to the ad7476 driver. Although the ad7091r is not really related to any of the other devices supported by this driver, luckily for us there are not so many ways (which are not totally insane) how sampling a single channel ADC via SPI can be implemented and support for the ad7091r can be added to the driver with just a few adjustments. The ad7091r requires an external "conversion start" pulse to start a sample conversion. After the conversion has finished the result can be read via SPI. We depend on a IIO trigger to generate this signal, as a result only sampling in buffered mode and not in manual mode is available. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * iio:ad7476: Add support for ad7273/ad7274/ad7276/ad7277/ad7278Lars-Peter Clausen2012-09-152-3/+23
| | | | | | | | | | | | | | | | | | | | The ad7276/ad7277/ad7278 are similar to the ad7476/ad7477/ad7478 but have the same number of leading zeros as the ad7940. The ad7273/ad7274 have a extra pin for VREF where as for the ad7276/ad7277/ad7278 VREF is taken from VDD, but otherwise they are compatible to the ad7276/ad7277. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * iio:ad7476: Add ad7940 supportLars-Peter Clausen2012-09-152-6/+16
| | | | | | | | | | | | | | | | The AD7940 is a single channel 14 bit ADC similar to the ADCs already supported by the ad7476 driver, but it does have a different shift factor. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * iio:ad7476: Add ad7910/ad7920 device table entriesLars-Peter Clausen2012-09-152-5/+8
| | | | | | | | | | | | | | The ad7910/ad7920 are software compatible to the ad7467/ad7466. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * iio: Move ad7476 driver out of stagingLars-Peter Clausen2012-09-153-0/+293
| | | | | | | | | | | | | | | | | | The ad7476 driver is a driver for simple single channel ADCs. The driver does not export any experimental or custom ABI files nor do the static code check tools report any issues, so move the driver out of staging. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* | Merge 3.6-rc6 into staging-nextGreg Kroah-Hartman2012-09-171-1/+1
|\ \ | |/ |/| | | | | | | | | This pulls in the staging tree fixes in 3.6-rc6 into our branch to resolve the merge issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * drivers/iio/adc/at91_adc.c: adjust inconsistent IS_ERR and PTR_ERRJulia Lawall2012-08-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change the call to PTR_ERR to access the value just tested by IS_ERR. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression e,e1; @@ ( if (IS_ERR(e)) { ... PTR_ERR(e) ... } | if (IS_ERR(e=e1)) { ... PTR_ERR(e) ... } | *if (IS_ERR(e)) { ... * PTR_ERR(e1) ... } ) // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* | staging:iio:adc: Add AD7791 driverLars-Peter Clausen2012-09-083-0/+473
| | | | | | | | | | | | | | | | This patch adds support for the Analog Devices AD7787, AD7788, AD7789, AD7790 and AD7791 Sigma Delta Analog-to-Digital converters. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* | iio: Drop timestamp parameter from buffer store_to callbackLars-Peter Clausen2012-09-083-3/+3
| | | | | | | | | | | | | | | | | | Drop timestamp parameter from buffer store_to callback and subsequently from iio_push_to_buffer. The timestamp parameter is unused and it seems likely that it will stay unused in the future, so it should be safe to remove it. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-19 19:41:16 +0100