CVS log for src/sys/dev/i2c/lm87.c

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Default branch: MAIN

s/tempurature/temperature/

Sync w/ HEAD.

iic_acquire_bus can fail.

Sync with HEAD.

Use DEVICE_COMPAT_EOL.

Since we're using designated initialisers for compat data, we should
use a completely empty initializer for the sentinel.

Use designated initializers and a consistent termination style in
compat_data[].

Merge changes from current as of 20200406

No need to use I2C_F_POLL here.

Sync with HEAD

In my quest to make device_compatible_entry (and associated goo)
super-general, it turns out I also made it a little to cumbersome
to use (if my tired fingers are any indication).  So, this is a
course-correction -- one string per entry (like of_compat_data,
which it will soon replace), and remove the over-verbose macros.

Sync with HEAD

- Rename iic_compat_match() to iic_compatible_match() and change it
  to use the new device_compatible_match() routine.  A pointer to
  the matching device_compatible_entry is returned if a match is
  found.
- Adjust iic_use_direct_match() accordingly.
- i2c drivers now provide device_compatible_entry tables when performing
  direct-config matching.
- In the dsrtc driver, take advantage of this new capability to greatly
  simplify model selection.

(I'm coming for you next, of_compat_data...)

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.

update from HEAD

Sync with HEAD

Correct previous - external temperature 2 is read from the 2.5V register,
not the Vccp2 register.

Add missing register definitions.
Handle LM87 external temperature 2 input, and Vcc input scaling (5V or 3.3V).

Sync with HEAD (as of 26th Dec)

Direct config: Only match via the list of compatible hardware when we have
such a list available (ia_ncompat > 0). Otherwise fall back to matching
the device name with ia_name.

Rebase to HEAD as of a few days ago.

sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")

sync with head

file lm87.c was added on branch tls-maxphys on 2014-08-20 00:03:37 +0000

file lm87.c was added on branch yamt-pagecache on 2014-05-22 11:40:21 +0000

file lm87.c was added on branch rmind-smpnet on 2014-05-18 17:45:37 +0000

Add missing braces.
Fix logic error - check the data read from the chip against 0xff.

A fan reading of 0xff is also invalid (observed on AlphaServer DS20L).

Remove extraneous printf().

Add a driver for the LM81, LM87, and compatible iic hardware monitors
(lmenv).  Ported from OpenBSD's lm87.c, revision 1.20.