[PATCH v2 00/13] i2c-multi-instantiate: Adapt for INT3515 and alike

[Andy Shevchenko]

Currently i2c-multi-instantiate driver does not support the case
of INT3515 USB PD device, where:

- Interrupt() is used instead of GpioInt()
- All slaves may be the same from IP point of view
- There can be variadic amount of slaves

This series is addressing all above.

Note, series has been smoke tested (Heikki would do BAT or more)
on Intel Coffee Lake system.

The idea is to push this either through PDx86 tree (needs Rafael's ACKs) or ACPI.
In any case it needs tags from Heikki, Hans, Mika, Wolfram and Jonathan.

Testing and comments are warmly welcome.

In v2:
 - drop patches to copy fwnode and to handle BOSC0200 device
 - append check for amount of devices listed in the driver's mapping
 - add Rb tag given by Hans

Andy Shevchenko (13):
  platform/x86: intel_cht_int33fe: Remove duplicate NULL check
  platform/x86: intel_cht_int33fe: Accept errors of
    i2c_acpi_new_device()
  platform/x86: i2c-multi-instantiate: Accept errors of
    i2c_acpi_new_device()
  platform/x86: i2c-mutli-instantiate: Defer probe when no adapter found
  i2c: acpi: Return error pointers from i2c_acpi_new_device()
  i2c: acpi: Use ACPI_FAILURE instead of !ACPI_SUCCESS
  i2c: acpi: Introduce i2c_acpi_get_i2c_resource() helper
  platform/x86: i2c-multi-instantiate: Count I2cSerialBus() resources
  platform/x86: i2c-multi-instantiate: Distinguish IRQ resource type
  platform/x86: i2c-multi-instantiate: Introduce IOAPIC IRQ support
  platform/x86: i2c-multi-instantiate: Allow to have same slaves
  ACPI / scan: Create platform device for INT3515 ACPI nodes
  iio: inv_mpu6050: Use i2c_acpi_get_i2c_resource() helper

 drivers/acpi/scan.c                          |  1 +
 drivers/i2c/i2c-core-acpi.c                  | 42 +++++----
 drivers/iio/imu/inv_mpu6050/inv_mpu_acpi.c   | 16 ++--
 drivers/platform/x86/i2c-multi-instantiate.c | 99 ++++++++++++++++----
 drivers/platform/x86/intel_cht_int33fe.c     | 34 +++++--
 drivers/usb/typec/tps6598x.c                 |  8 +-
 include/linux/acpi.h                         | 11 +++
 7 files changed, 155 insertions(+), 56 deletions(-)

--
2.19.1