kernel/git/stable/linux.git/drivers/iio/adc, branch linux-4.6.y

iio:ad7266: Fix probe deferral for vref

2016-07-27T15:42:21+00:00

commit 68b356eb3d9f5e38910fb62e22a78e2a18d544ae upstream. Currently the ad7266 driver treats any failure to get vref as though the regulator were not present but this means that if probe deferral is triggered the driver will act as though the regulator were not present. Instead only use the internal reference if we explicitly got -ENODEV which is what is returned for absent regulators. Signed-off-by: Mark Brown Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman

iio:ad7266: Fix support for optional regulators

2016-07-27T15:42:21+00:00

commit e5511c816e5ac4909bdd38e85ac344e2b9b8e984 upstream. The ad7266 driver attempts to support deciding between the use of internal and external power supplies by checking to see if an error is returned when requesting the regulator. This doesn't work with the current code since the driver uses a normal regulator_get() which is for non-optional supplies and so assumes that if a regulator is not provided by the platform then this is a bug in the platform integration and so substitutes a dummy regulator. Use regulator_get_optional() instead which indicates to the framework that the regulator may be absent and provides a dummy regulator instead. Signed-off-by: Mark Brown Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman

iio:ad7266: Fix broken regulator error handling

2016-07-27T15:42:21+00:00

commit 6b7f4e25f3309f106a5c7ff42c8231494cf285d3 upstream. All regulator_get() variants return either a pointer to a regulator or an ERR_PTR() so testing for NULL makes no sense and may lead to bugs if we use NULL as a valid regulator. Fix this by using IS_ERR() as expected. Signed-off-by: Mark Brown Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman

iio:adc:at91-sama5d2: Repair crash on module removal

2016-04-18T18:53:34+00:00

The driver never calls platform_set_drvdata() , so platform_get_drvdata() in .remove returns NULL and thus $indio_dev variable in .remove is NULL. Then it's only a matter of dereferencing the indio_dev variable to make the kernel blow as seen below. This patch adds the platform_set_drvdata() call to fix the problem. root@armhf:~# rmmod at91-sama5d2_adc Unable to handle kernel NULL pointer dereference at virtual address 000001d4 pgd = dd57c000 [000001d4] *pgd=00000000 Internal error: Oops: 5 [#1] ARM Modules linked in: at91_sama5d2_adc(-) CPU: 0 PID: 1334 Comm: rmmod Not tainted 4.6.0-rc3-next-20160418+ #3 Hardware name: Atmel SAMA5 task: dd4fcc40 ti: de910000 task.ti: de910000 PC is at mutex_lock+0x4/0x24 LR is at iio_device_unregister+0x14/0x6c pc : [] lr : [] psr: a00d0013 sp : de911f00 ip : 00000000 fp : be898bd8 r10: 00000000 r9 : de910000 r8 : c0107724 r7 : 00000081 r6 : bf001048 r5 : 000001d4 r4 : 00000000 r3 : bf000000 r2 : 00000000 r1 : 00000004 r0 : 000001d4 Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 10c53c7d Table: 3d57c059 DAC: 00000051 Process rmmod (pid: 1334, stack limit = 0xde910208) Stack: (0xde911f00 to 0xde912000) 1f00: bf000000 00000000 df5c7e10 bf000010 bf000000 df5c7e10 df5c7e10 c0351ca8 1f20: c0351c84 df5c7e10 bf001048 c0350734 bf001048 df5c7e10 df5c7e44 c035087c 1f40: bf001048 7f62dd4c 00000800 c034fb30 bf0010c0 c0158ee8 de910000 31397461 1f60: 6d61735f 32643561 6364615f 00000000 de911f90 de910000 de910000 00000000 1f80: de911fb0 10c53c7d de911f9c c05f33d8 de911fa0 00910000 be898ecb 7f62dd10 1fa0: 00000000 c0107560 be898ecb 7f62dd10 7f62dd4c 00000800 6f844800 6f844800 1fc0: be898ecb 7f62dd10 00000000 00000081 00000000 7f62dd10 be898bd8 be898bd8 1fe0: b6eedab1 be898b6c 7f61056b b6eedab6 000d0030 7f62dd4c 00000000 00000000 [] (mutex_lock) from [] (iio_device_unregister+0x14/0x6c) [] (iio_device_unregister) from [] (at91_adc_remove+0x10/0x3c [at91_sama5d2_adc]) [] (at91_adc_remove [at91_sama5d2_adc]) from [] (platform_drv_remove+0x24/0x3c) [] (platform_drv_remove) from [] (__device_release_driver+0x84/0x110) [] (__device_release_driver) from [] (driver_detach+0x8c/0x90) [] (driver_detach) from [] (bus_remove_driver+0x4c/0xa0) [] (bus_remove_driver) from [] (SyS_delete_module+0x110/0x1d0) [] (SyS_delete_module) from [] (ret_fast_syscall+0x0/0x3c) Code: e3520001 1affffd5 eafffff4 f5d0f000 (e1902f9f) ---[ end trace 86914d7ad3696fca ]--- Signed-off-by: Marek Vasut Cc: Ludovic Desroches Cc: Signed-off-by: Jonathan Cameron

Merge tag 'iio-fixes-for-4.6b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

2016-04-04T20:45:10+00:00

Jonathan writes: Second set of IIO fixes for the 4.6 cycle. This lot are either dependent on patches from the merge window or just came in recently enough that they ended up in this tree. * core - The watermark for the buffers was given a value that meant that it was impossible to actually set the watermark to anything sensible. * at91_adc - Fix a build config dependency on HAS_IOMEM * bmc150 - Fix wrong output on big endian systems * bmg160 - Fix wrong output on big endian systems - Fix an issue in which the regmap return value was stored to the buffer rather than the value actually being read in a bulk read. * inv_mpu6050 - Fix an indirect build config dependency on HAS_IOMEM * max30100 - Fix an error in fifo check condition that leads to a double read of the final reading. * st_magn - Make sure ST_MAGN_TRIGGER_SET_STATE is always defined to avoid a build error for relatively obscure config combinations.

Merge tag 'iio-fixes-for-4.6a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into usb-linus

2016-04-04T19:59:48+00:00

Jonathan writes: First round of IIO fixes for the 4.6 cycle. Again I've ended up with two early fix sets, depending on whether they are dependent on elements of the merge window or simply came in after I had patches with that dependency already, vs older fixes that were just too late for the last cycle. This first set is for the older ones. - max1353 * Add a missing adc to max1363_id - the driver has supported the max11644-11647 for a while, but as they weren't in the id table there was no way of actually initializing it. * Fix a wrong reference voltage for the above models. Given you couldn't initialize the driver for these parts without patching, no one noticed that the reference voltage used in computing the scaling was wrong. - apds9960 * The fifo last enelement was read twice (and hence pushed out twice) due to a small logic bug.

iio: adc: Fix build error of missing devm_ioremap_resource on UM

2016-03-28T08:51:19+00:00

The devres.o gets linked if HAS_IOMEM is present so on ARCH=um allyesconfig (COMPILE_TEST) failed with: drivers/built-in.o: In function `at91_adc_probe': at91-sama5d2_adc.c:(.text+0x48f548): undefined reference to `devm_ioremap_resource' Signed-off-by: Krzysztof Kozlowski Signed-off-by: Jonathan Cameron

iio: adc: max1363: correct reference voltage

2016-03-20T10:32:14+00:00

Swap max11644/max11645 and max 11646/max11647 reference voltages according to datasheet. Signed-off-by: Stefan Eichenberger Signed-off-by: Jonathan Cameron

iio: adc: max1363: add missing adc to max1363_id

2016-03-20T10:31:22+00:00

max11644-max11647 had an enum value but were not added to the max1363_id, so they where not selectable in the devictree. Signed-off-by: Stefan Eichenberger Signed-off-by: Jonathan Cameron

Merge tag 'mfd-for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

2016-03-18T17:15:11+00:00

Pull MFD updates from Lee Jones: "New Drivers: - Freescale Touch Screen ADC - X-Powers AXP PMIC with RSB - TI TPS65086 Power Management IC (PMIC) New Device Support: - Supply device PCI IDs for Intel Broxton Fix-ups: - Move to clkdev_create() API; intel_quark_i2c_gpio - Complete re-write of TI's TPS65912 Power Management IC (PMIC) - Remove unnecessary function argument; axp20x - Separate out bus related code; axp20x - Coding Style changes; axp20x - Allow more drivers to be compiled as modules - Work around false positive 'used uninitialised' warning; db8500-prcmu Bug Fixes: - Remove do_div(); fsl-imx25-gcq - Fix driver init when built-in; tps65010 - Fix clock-unregister leak; intel-lpss" * tag 'mfd-for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (53 commits) mfd: intel-lpss: Pass I2C configuration via properties on BXT mfd: imx6sx: Add PCIe register definitions for iomuxc gpr mfd: ipaq-micro: Use __maybe_unused to hide pm functions mfd: max77686: Add max77802 to I2C device ID table mfd: max77686: Export OF module alias information mfd: max77686: Allow driver to be built as a module mfd: stmpe: Add the proper PWM resources mfd: tps65090: Set regmap config reg counts properly mfd: syscon: Return ENOTSUPP instead of ENOSYS when disabled mfd: as3711: Set regmap config reg counts properly mfd: rc5t583: Set regmap config reg counts properly gpio: tps65086: Add GPO driver for the TPS65086 PMIC mfd: mt6397: Add platform device ID table mfd: da9063: Fix missing volatile registers in the core regmap_range volatile lists mfd: mt6397: Add MT6323 support to MT6397 driver mfd: mt6397: Add support for different Slave types mfd: mt6397: int_con and int_status may vary in location dt-bindings: mfd: Add bindings for the MediaTek MT6323 PMIC mfd: da9062: Fix missing volatile registers in the core regmap_range volatile lists mfd: Add documentation for ACT8945A DT bindings ...