[v6,0/6] fsi: Add IBM I2C Responder virtual FSI master

Message

Eddie James Feb. 22, 2023, 7:23 p.m. UTC

The I2C Responder (I2CR) is an I2C device that translates I2C commands
to CFAM or SCOM operations, effectively implementing an FSI master and
bus.

Changes since v5:
 - Make I2CR scom driver depend on I2CR FSI master

Changes since v4:
 - Add I2CR scom driver and associated patches
 - Use compatible strings for FSI drivers if specified
 - Include aliased device numbering patch
 - Restructure the trace events to eliminate holes

Changes since v3:
 - Rework the endian-ness in i2cr_write
 - Rework the tracing to include the i2c bus and device address

Changes since v2:
 - Fix the bindings again, sorry for the spam

Changes since v1:
 - Fix the binding document
 - Change the binding name
 - Clean up the size argument checking
 - Reduce __force by using packed struct for the command

Eddie James (6):
  fsi: Move fsi_slave structure definition to header
  dt-bindings: fsi: Document the IBM I2C Responder virtual FSI master
  fsi: Add IBM I2C Responder virtual FSI master
  fsi: Add I2C Responder SCOM driver
  fsi: Add aliased device numbering
  fsi: Use of_match_table for bus matching if specified

 .../bindings/fsi/ibm,i2cr-fsi-master.yaml     |  41 ++++
 drivers/fsi/Kconfig                           |  17 ++
 drivers/fsi/Makefile                          |   2 +
 drivers/fsi/fsi-core.c                        |  60 +++--
 drivers/fsi/fsi-master-aspeed.c               |   2 +-
 drivers/fsi/fsi-master-ast-cf.c               |   2 +-
 drivers/fsi/fsi-master-gpio.c                 |   2 +-
 drivers/fsi/fsi-master-hub.c                  |   2 +-
 drivers/fsi/fsi-master-i2cr.c                 | 228 ++++++++++++++++++
 drivers/fsi/fsi-master-i2cr.h                 |  24 ++
 drivers/fsi/fsi-master.h                      |   3 +-
 drivers/fsi/fsi-scom.c                        |   8 +
 drivers/fsi/fsi-slave.h                       |  28 +++
 drivers/fsi/i2cr-scom.c                       | 158 ++++++++++++
 include/trace/events/fsi_master_i2cr.h        | 109 +++++++++
 15 files changed, 659 insertions(+), 27 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/fsi/ibm,i2cr-fsi-master.yaml
 create mode 100644 drivers/fsi/fsi-master-i2cr.c
 create mode 100644 drivers/fsi/fsi-master-i2cr.h
 create mode 100644 drivers/fsi/fsi-slave.h
 create mode 100644 drivers/fsi/i2cr-scom.c
 create mode 100644 include/trace/events/fsi_master_i2cr.h