[GIT PULL] I2C changes for next qemu release

[Corey Minyard <minyard@acm.org>]

This is the addition of a new devices used in a lot of BMCs, and adds
the infrastructure so other devices of it's type can be added.

I will update the Changelog as necessary.

This was through several revisions on the mailing list recently.

Thanks,

-corey

The following changes since commit 8fe9f1f891eff4e37f82622b7480ee748bf4af74:

  Update version for v6.0.0-rc3 release (2021-04-14 22:06:18 +0100)

are available in the Git repository at:

  https://github.com/cminyard/qemu.git tags/for-qemu-6.1-v1

for you to fetch changes up to 065177eeceff552a5316bff9435188b50a2da1b6:

  hw/i2c: add pca954x i2c-mux switch (2021-04-15 07:10:39 -0500)

----------------------------------------------------------------
Add a bus multiplexer device

This patch set adds a bus multiplexer and the necessary infrastructure
in the I2C code to allow it to work.

These are common on systems with lots of I2C devices, like an IPMI BMC.

----------------------------------------------------------------
Patrick Venture (4):
      hw/i2c: name I2CNode list in I2CBus
      hw/i2c: add match method for device search
      hw/i2c: move search to i2c_scan_bus method
      hw/i2c: add pca954x i2c-mux switch

 MAINTAINERS                      |   6 +
 hw/i2c/Kconfig                   |   4 +
 hw/i2c/core.c                    |  55 ++++++--
 hw/i2c/i2c_mux_pca954x.c         | 290 +++++++++++++++++++++++++++++++++++++++
 hw/i2c/meson.build               |   1 +
 hw/i2c/trace-events              |   5 +
 include/hw/i2c/i2c.h             |  17 ++-
 include/hw/i2c/i2c_mux_pca954x.h |  19 +++
 8 files changed, 383 insertions(+), 14 deletions(-)
 create mode 100644 hw/i2c/i2c_mux_pca954x.c
 create mode 100644 include/hw/i2c/i2c_mux_pca954x.h