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History log of /src/sys/dev/acpi/dwiic_acpi.c
RevisionDateAuthorComments
 1.12  15-Sep-2025  thorpej No longer need to include acpi_i2c.h here.
 1.11  15-Sep-2025  thorpej Do the ACPI-specific get-child-devices dance in iic_attach(). This
obviously isn't ideal, but it funnels the issue into a central location
and provides for easier improvement later.
 1.10  19-Oct-2022  riastradh dwiic(4): Don't try to attach children if dwiic_attach failed.

PR kern/57063
 1.9  07-Aug-2021  thorpej branches: 1.9.2;
Merge thorpej-cfargs2.
 1.8  24-Apr-2021  thorpej branches: 1.8.2; 1.8.8;
Merge thorpej-cfargs branch:

Simplify and make extensible the config_search() / config_found() /
config_attach() interfaces: rather than having different variants for
which arguments you want pass along, just have a single call that
takes a variadic list of tag-value arguments.

Adjust all call sites:
- Simplify wherever possible; don't pass along arguments that aren't
actually needed.
- Don't be explicit about what interface attribute is attaching if
the device only has one. (More simplification.)
- Add a config_probe() function to be used in indirect configuiration
situations, making is visibly easier to see when indirect config is
in play, and allowing for future change in semantics. (As of now,
this is just a wrapper around config_match(), but that is an
implementation detail.)

Remove unnecessary or redundant interface attributes where they're not
needed.

There are currently 5 "cfargs" defined:
- CFARG_SUBMATCH (submatch function for direct config)
- CFARG_SEARCH (search function for indirect config)
- CFARG_IATTR (interface attribte)
- CFARG_LOCATORS (locators array)
- CFARG_DEVHANDLE (devhandle_t - wraps OFW, ACPI, etc. handles)

...and a sentinel value CFARG_EOL.

Add some extra sanity checking to ensure that interface attributes
aren't ambiguous.

Use CFARG_DEVHANDLE in MI FDT, OFW, and ACPI code, and macppc and shark
ports to associate those device handles with device_t instance. This
will trickle trough to more places over time (need back-end for pre-OFW
Sun OBP; any others?).
 1.7  04-Feb-2021  thorpej branches: 1.7.2;
Use acpi_compatible_match().
 1.6  26-Jan-2021  jmcneill Add a device_t parameter to acpi_enter_i2c_devs. If non-NULL, all child
acpi_devnodes will be claimed by that device so we don't later try to
attach a duplicate device to that node at acpinodebus.
 1.5  24-Jan-2021  jmcneill Attach dwiic(4) to AMD FCH I2C controllers. These busses are separate
from the SMBus that we attach to piixpm(4) today, and support direct
config via ACPI.
 1.4  07-Dec-2020  jmcneill Fix 32-bit build.
 1.3  23-Sep-2019  jmcneill branches: 1.3.8;
Match APMC0D0F compatible string.
 1.2  16-Nov-2018  jmcneill branches: 1.2.4; 1.2.6;
Use acpi_intr_establish
 1.1  17-Oct-2018  jmcneill branches: 1.1.2;
Add ACPI glue for DesignWare I2C controller.
 1.1.2.3  26-Nov-2018  pgoyette Sync with HEAD, resolve a couple of conflicts
 1.1.2.2  20-Oct-2018  pgoyette Sync with head
 1.1.2.1  17-Oct-2018  pgoyette file dwiic_acpi.c was added on branch pgoyette-compat on 2018-10-20 06:58:30 +0000
 1.2.6.1  23-Sep-2019  martin Pull up following revision(s) (requested by jmcneill in ticket #233):

sys/dev/acpi/dwiic_acpi.c: revision 1.3

Match APMC0D0F compatible string.
 1.2.4.3  13-Apr-2020  martin Mostly merge changes from HEAD upto 20200411
 1.2.4.2  10-Jun-2019  christos Sync with HEAD
 1.2.4.1  16-Nov-2018  christos file dwiic_acpi.c was added on branch phil-wifi on 2019-06-10 22:07:05 +0000
 1.3.8.2  03-Apr-2021  thorpej Sync with HEAD.
 1.3.8.1  14-Dec-2020  thorpej Sync w/ HEAD.
 1.7.2.1  23-Mar-2021  thorpej Convert config_found_ia() call sites where the device only carries
a single interface attribute to bare config_found() calls.
 1.8.8.1  04-Aug-2021  thorpej Adapt to CFARGS().
 1.8.2.2  25-Apr-2021  thorpej - Don't use acpi_enter_i2c_devs() -- it no longer exists.
- Pass along our devhandle to the i2c bus instance.
 1.8.2.1  25-Apr-2021  thorpej acpi_i2c.h is no more.
 1.9.2.1  09-Aug-2021  thorpej Port over the changes from thorpej-i2c-spi-conf to thorpej-i2c-spi-conf2,
which is based on a newer HEAD revision.

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