CVS commit: src/sys/dev/i2c

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

Module Name:    src
Committed By:   thorpej
Date:           Sat Jun 16 21:28:07 UTC 2018

Modified Files:
        src/sys/dev/i2c: ds1307.c

Log Message:
More cleanup to i2c autoconfiguration:

- Get all of the drivers onto the new match quality constants.
- Introduce a new helper function, iic_use_direct_match(), that has
  all of the logic for direct-config matching.  If it returns true,
  the driver returns the match result (which may be 0).  If it returns
  false, the driver does indirect-config matching.
- iic_compat_match() now returns a weighted match quality; matches to
  lower-indexed "compatible" device property are more-specific matches,
  and return a better match quality accordingly.

In addition to the above:
- Add support for direct-config matching this driver based on
  "compatible" properties.
- Address-only matching is now done based on the specific addresses
  the requested model supports.
- "compatible" property can specify to the driver which model is to
  be used, so that using config "flags" directives aren't required
  in the direct-config case.

XXX More changes coming that require re-factoring some other code.


To generate a diff of this commit:
cvs rdiff -u -r1.25 -r1.26 src/sys/dev/i2c/ds1307.c

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