CVS commit: [thorpej-i2c-spi-conf] src/sys/arch/sparc64

["Jason R Thorpe" <thorpej%netbsd.org@localhost>]

Module Name:    src
Committed By:   thorpej
Date:           Sat May 15 03:22:17 UTC 2021

Modified Files:
        src/sys/arch/sparc64/dev [thorpej-i2c-spi-conf]: pcf8591_envctrl.c
        src/sys/arch/sparc64/sparc64 [thorpej-i2c-spi-conf]: autoconf.c
            ofw_patch.c ofw_patch.h

Log Message:
- Move all of the stuff-missing-from-OFW-device-tree stuff into a
  new function sparc64_device_tree_fixup(), and call it from
  device_register().
- sparc64_device_tree_fixup() is table-driven, selecting the table
  based on the machine_model.  It can appy "dtnode" fixups (by matching
  the device's OFW path) and "special" fixups, which are especially
  useful when a property needs to be added to another device that happens
  to not be in the OFW device tree.
- Implement enumeration of missing-from-OFW-device-tree i2c devices
  by "sub-classing" the controller's device handle, intercepting the
  "i2c-enumerate-devices" device call.  We let the "super" first
  enumerate any i2c devices that are in the OFW device tree, and then
  enumerate our own additions after that is done.  i2c additions are
  provided by the machine_model fixup tables.


To generate a diff of this commit:
cvs rdiff -u -r1.19 -r1.19.4.1 src/sys/arch/sparc64/dev/pcf8591_envctrl.c
cvs rdiff -u -r1.228.2.1 -r1.228.2.2 src/sys/arch/sparc64/sparc64/autoconf.c
cvs rdiff -u -r1.7 -r1.7.4.1 src/sys/arch/sparc64/sparc64/ofw_patch.c
cvs rdiff -u -r1.4 -r1.4.6.1 src/sys/arch/sparc64/sparc64/ofw_patch.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.