dwiic(4): Don't try to attach children if dwiic_attach failed.

PR kern/57063

branches: 1.9.2;
Merge thorpej-cfargs2.

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?).

branches: 1.7.2;
Use acpi_compatible_match().

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.

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.

Fix 32-bit build.

branches: 1.3.8;
Match APMC0D0F compatible string.

branches: 1.2.4; 1.2.6;
Use acpi_intr_establish

branches: 1.1.2;
Add ACPI glue for DesignWare I2C controller.

Merge thorpej-cfargs2.

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?).

branches: 1.7.2;
Use acpi_compatible_match().

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.

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.

Fix 32-bit build.

branches: 1.3.8;
Match APMC0D0F compatible string.

branches: 1.2.4; 1.2.6;
Use acpi_intr_establish

branches: 1.1.2;
Add ACPI glue for DesignWare I2C controller.

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?).

branches: 1.7.2;
Use acpi_compatible_match().

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.

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.

Fix 32-bit build.

branches: 1.3.8;
Match APMC0D0F compatible string.

branches: 1.2.4; 1.2.6;
Use acpi_intr_establish

branches: 1.1.2;
Add ACPI glue for DesignWare I2C controller.

Use acpi_compatible_match().

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.

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.

Fix 32-bit build.

branches: 1.3.8;
Match APMC0D0F compatible string.

branches: 1.2.4; 1.2.6;
Use acpi_intr_establish

branches: 1.1.2;
Add ACPI glue for DesignWare I2C controller.

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.

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.

Fix 32-bit build.

branches: 1.3.8;
Match APMC0D0F compatible string.

branches: 1.2.4; 1.2.6;
Use acpi_intr_establish

branches: 1.1.2;
Add ACPI glue for DesignWare I2C controller.

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.

Fix 32-bit build.

branches: 1.3.8;
Match APMC0D0F compatible string.

branches: 1.2.4; 1.2.6;
Use acpi_intr_establish

branches: 1.1.2;
Add ACPI glue for DesignWare I2C controller.

Fix 32-bit build.

Match APMC0D0F compatible string.

branches: 1.2.4; 1.2.6;
Use acpi_intr_establish

branches: 1.1.2;
Add ACPI glue for DesignWare I2C controller.

Match APMC0D0F compatible string.

branches: 1.2.4;
Use acpi_intr_establish

branches: 1.1.2;
Add ACPI glue for DesignWare I2C controller.

Use acpi_intr_establish

branches: 1.1.2;
Add ACPI glue for DesignWare I2C controller.