linux-toradex.git/drivers/iio/trigger, branch v4.14-rc3

Merge tag 'mfd-next-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

2017-09-07T20:51:13+00:00

Pull MFD updates from Lee Jones:
 "New Drivers
   - RK805 Power Management IC (PMIC)
   - ROHM BD9571MWV-M MFD Power Management IC (PMIC)
   - Texas Instruments TPS68470 Power Management IC (PMIC) & LEDs

  New Device Support:
   - Add support for HiSilicon Hi6421v530 to hi6421-pmic-core
   - Add support for X-Powers AXP806 to axp20x
   - Add support for X-Powers AXP813 to axp20x
   - Add support for Intel Sunrise Point LPSS to intel-lpss-pci

  New Functionality:
   - Amend API to provide register layout; atmel-smc

  Fix-ups:
   - DT re-work; omap, nokia
   - Header file location change {I2C => MFD}; dm355evm_msp, tps65010
   - Fix chip ID formatting issue(s); rk808
   - Optionally register touchscreen devices; da9052-core
   - Documentation improvements; twl-core
   - Constification; rtsx_pcr, ab8500-core, da9055-i2c, da9052-spi
   - Drop unnecessary static declaration; max8925-i2c
   - Kconfig changes (missing deps and remove module support)
   - Slim down oversized licence statement; hi6421-pmic-core
   - Use managed resources (devm_*); lp87565
   - Supply proper error checking/handling; t7l66xb

  Bug Fixes:
   - Fix counter duplication issue; da9052-core
   - Fix potential NULL deference issue; max8998
   - Leave SPI-NOR write-protection bit alone; lpc_ich
   - Ensure device is put into reset during suspend; intel-lpss
   - Correct register offset variable size; omap-usb-tll"

* tag 'mfd-next-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (61 commits)
  mfd: intel_soc_pmic: Differentiate between Bay and Cherry Trail CRC variants
  mfd: intel_soc_pmic: Export separate mfd-cell configs for BYT and CHT
  dt-bindings: mfd: Add bindings for ZII RAVE devices
  mfd: omap-usb-tll: Fix register offsets
  mfd: da9052: Constify spi_device_id
  mfd: intel-lpss: Put I2C and SPI controllers into reset state on suspend
  mfd: da9055: Constify i2c_device_id
  mfd: intel-lpss: Add missing PCI ID for Intel Sunrise Point LPSS devices
  mfd: t7l66xb: Handle return value of clk_prepare_enable
  mfd: Add ROHM BD9571MWV-M PMIC DT bindings
  mfd: intel_soc_pmic_chtwc: Turn Kconfig option into a bool
  mfd: lp87565: Convert to use devm_mfd_add_devices()
  mfd: Add support for TPS68470 device
  mfd: lpc_ich: Do not touch SPI-NOR write protection bit on Haswell/Broadwell
  mfd: syscon: atmel-smc: Add helper to retrieve register layout
  mfd: axp20x: Use correct platform device ID for many PEK
  dt-bindings: mfd: axp20x: Introduce bindings for AXP813
  mfd: axp20x: Add support for AXP813 PMIC
  dt-bindings: mfd: axp20x: Add AXP806 to supported list of chips
  mfd: Add ROHM BD9571MWV-M MFD PMIC driver
  ...

iio: trigger: Add STM32 LPTimer trigger driver

2017-09-04T13:49:23+00:00

Add support for LPTIMx_OUT triggers that can be found on some STM32
devices. These triggers can be used then by ADC or DAC.
Typical usage is to configure LPTimer as PWM output (via pwm-stm32-lp)
and have synchronised analog conversions with these triggers.

Signed-off-by: Fabrice Gasnier 
Reviewed-by: Jonathan Cameron 
Signed-off-by: Lee Jones

Merge 4.13-rc7 into staging-next

2017-08-28T13:26:48+00:00

We want the staging and iio fixes in here to handle the merge issues.

Signed-off-by: Greg Kroah-Hartman

iio: trigger: stm32-timer: fix get trigger mode

2017-08-20T14:21:47+00:00

Fix reading trigger mode, when other bit-fields are set. SMCR register
value must be masked to read SMS (slave mode selection) only.

Fixes: 9eba381 ("iio: make stm32 trigger driver use
INDIO_HARDWARE_TRIGGERED mode")

Signed-off-by: Fabrice Gasnier 
Cc: 
Signed-off-by: Jonathan Cameron

iio: trigger: stm32-timer: add output compare triggers

2017-08-12T12:05:27+00:00

Add output compare trigger sources available on some instances.

Signed-off-by: Fabrice Gasnier 
Signed-off-by: Jonathan Cameron

iio: trigger: stm32-timer: add support for STM32H7

2017-08-12T12:05:26+00:00

Add support for STM32H7 timer triggers:
- Add new valids_table
- Introduce compatible, with configuration data
- Extend up to 15 timers, available on STM32H7

Signed-off-by: Fabrice Gasnier 
Signed-off-by: Jonathan Cameron

iio: trigger: stm32-timer: add enable attribute

2017-07-30T13:48:14+00:00

In order to use encoder mode, timers needs to be enabled (e.g. CEN bit)
along with peripheral clock.
Add IIO_CHAN_INFO_ENABLE attribute to handle this.
Also, in triggered mode, CEN bit is set automatically in hardware.
Then clock must be enabled before starting triggered mode.

Signed-off-by: Fabrice Gasnier 
Acked-by: Benjamin Gaignard 
Signed-off-by: Jonathan Cameron

iio: trigger: stm32-timer: fix get/set down count direction

2017-07-30T13:46:02+00:00

Fixes: 4adec7da0536 ("iio: stm32 trigger: Add quadrature encoder device")

This fixes two issues:
- stm32_set_count_direction: to set down direction
- stm32_get_count_direction: to get down direction

IIO core provides/expects value to be an index of iio_enum items array.
This needs to be turned by these routines into TIM_CR1_DIR (e.g. BIT(4))
value.
Also, report error when attempting to write direction, when in encoder
mode: in this case, direction is read only (given by encoder inputs).

Signed-off-by: Fabrice Gasnier 
Acked-by: Benjamin Gaignard 
Signed-off-by: Jonathan Cameron

iio: trigger: stm32-timer: fix write_raw return value

2017-07-30T13:44:28+00:00

Fixes: 4adec7da0536 ("iio: stm32 trigger: Add quadrature encoder device")

IIO core expects zero as return value for write_raw() callback
in case of success.

Signed-off-by: Fabrice Gasnier 
Acked-by: Benjamin Gaignard 
Signed-off-by: Jonathan Cameron

iio: trigger: stm32-timer: fix quadrature mode get routine

2017-07-30T13:43:10+00:00

Fixes: 4adec7da0536 ("iio: stm32 trigger: Add quadrature encoder device")

SMS bitfiled is mode + 1. After reset, upon boot, SMS = 0. When reading
from sysfs, stm32_get_quadrature_mode() returns -1 (e.g. -EPERM) which is
wrong error code here. So, check SMS bitfiled matches valid encoder mode,
or return -EINVAL.

Signed-off-by: Fabrice Gasnier 
Acked-by: Benjamin Gaignard 
Signed-off-by: Jonathan Cameron