[PATCH v6 0/3] HID: mcp2221: iio support and device resource management

[Matt Ranostay <matt.ranostay@konsulko.com>]

This patchset is primarily to enable iio support for the MCP2221 HID driver,
but requires several Kconfig changes and device resource management.

First attempt of this patchset is referenced here:

Link: https://lore.kernel.org/all/20220729154723.99947-1-matt.ranostay@xxxxxxxxxxxx/

Changes from v1:
* Fixing various Kconfig recursive dependencies that appear with 'imply IIO'
* Switch hid-mcp2221 driver to device managed resources for i2c support
* Reworking patchset per advice on lore.kernel.org link above

Changes from v2:
* add linux-iio list to CC

Changes from v3:
* replace .remove() tasks with devm_add_action_or_reset() in .probe()
* reschedule SRAM configuration read on failures
* add IIO_CHAN_INFO_SCALE values for ADC + DAC based on reference voltage

Changes from v4:
* add .remove function with no operation to avoid hid_hw_stop() being called
  twice due to new devm functions
* add retries limit to five for reading SRAM configuration data
* update 'io: adc: stx104: fix future recursive dependencies' to new Kconfig
  location for STX104 driver on linux-next pending-fixes branch

Changes from v5:
* dropped all Kconfig changes not related to mcp2221 driver
* changed 'select GPIOLIB' to imply for mcp2221 along with IS_REACHABLE check

Matt Ranostay (3):
  HID: mcp2221: switch i2c registration to devm functions
  HID: mcp2221: change 'select GPIOLIB' to imply
  HID: mcp2221: add ADC/DAC support via iio subsystem

 drivers/hid/Kconfig       |   3 +-
 drivers/hid/hid-mcp2221.c | 310 ++++++++++++++++++++++++++++++++++----
 2 files changed, 286 insertions(+), 27 deletions(-)

-- 
2.37.2