[PATCH v3 0/3] mfd: add support for Diolan DLN-2

[Octavian Purdila]

This patch series adds support for Diolan USB-I2C/GPIO Master Adapter DLN-2.
Details about device can be found here:

https://www.diolan.com/i2c/i2c_interface.html.

Changes since v2:

 * MFD driver: fix a few obsolete comments for the DLN2 I/O API

 * GPIO driver: retry the chip remove call if -EBUSY is returned, see
   the comments in dln2_do_remove for more details; also removed a
   redundant !dln2->pdev check from dln2_irq_event - we do it in
   dln2_transfer already

 * I2C driver: add I2C_FUNC_SMBUS_I2C_BLOCK support

Changes since v1:

 * rewrite the drivers as an MFD

 * rewrite the irq part of the gpio driver to use GPIOLIB_IRQCHIP

 * cleanup the I/O interface

 * various fixes and cleanps: check received message sizes before
   parsing, error handling for usb_submit_urb, check URB status, use
   single bit manipulation functions instead of bitmap_*, move
   GFP_KERNEL URB submit away from under lock

Daniel Baluta (1):
  gpio: add support for the Diolan DLN-2 USB GPIO driver

Laurentiu Palcu (1):
  i2c: add support for Diolan DLN-2 USB-I2C adapter

Octavian Purdila (1):
  mfd: add support for Diolan DLN-2 devices

 drivers/gpio/Kconfig          |  12 +
 drivers/gpio/Makefile         |   1 +
 drivers/gpio/gpio-dln2.c      | 537 ++++++++++++++++++++++++++++++++++
 drivers/i2c/busses/Kconfig    |  10 +
 drivers/i2c/busses/Makefile   |   1 +
 drivers/i2c/busses/i2c-dln2.c | 301 +++++++++++++++++++
 drivers/mfd/Kconfig           |   9 +
 drivers/mfd/Makefile          |   1 +
 drivers/mfd/dln2.c            | 653 ++++++++++++++++++++++++++++++++++++++++++
 include/linux/mfd/dln2.h      |  61 ++++
 10 files changed, 1586 insertions(+)
 create mode 100644 drivers/gpio/gpio-dln2.c
 create mode 100644 drivers/i2c/busses/i2c-dln2.c
 create mode 100644 drivers/mfd/dln2.c
 create mode 100644 include/linux/mfd/dln2.h

-- 
1.9.1

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