mbox series

[v3,0/4] hw/i2c: Adds pca954x i2c mux switch device

Message ID 20210409201443.111197-1-venture@google.com
Headers show
Series hw/i2c: Adds pca954x i2c mux switch device | expand

Message

Patrick Leis April 9, 2021, 8:14 p.m. UTC 
The i2c mux device pca954x implements two devices:
 - the pca9546 and pca9548.

v3:
 - fixup comment with missing end parenthesis.
 - removed superfluous object cast.

v2:
 - the core i2c bus now calls a match method on each i2c child, which
 by default will only check for a match against itself.
 - the pca954x device overrides the i2c device match method to search
 the children for each of its buses that are active.
 - the pca954x device now owns an i2c bus for each channel, allowing
 the normal device model to attach devices to the channels.

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         | 289 +++++++++++++++++++++++++++++++
 hw/i2c/meson.build               |   1 +
 hw/i2c/trace-events              |   5 +
 include/hw/i2c/i2c.h             |  16 +-
 include/hw/i2c/i2c_mux_pca954x.h |  19 ++
 8 files changed, 381 insertions(+), 14 deletions(-)
 create mode 100644 hw/i2c/i2c_mux_pca954x.c
 create mode 100644 include/hw/i2c/i2c_mux_pca954x.h