Home | History | Annotate | Download | only in fdt
History log of /src/sys/dev/fdt/fdt_spi.c
RevisionDateAuthorComments
 1.13  14-Sep-2025  thorpej In spi_configure() attempt to fetch transfer mode information from the
platform device tree. Implement this for FDT per the SPI controller and
periperal Device Tree bindings.
 1.12  14-Sep-2025  thorpej Make SPI direct configuration less #ifdef'y. No more checking what kind
of platform device tree; instead, use a device call to enumerate the
direct config children of the bus.
 1.11  10-Sep-2025  thorpej Garbage-collect fdtbus_attach_spibus(). spibus_attach() does everything
now.
 1.10  10-Sep-2025  thorpej Put the task of getting the device array from the FDT onto the
SPI bus attach routine. This is slightly ugly now, but a prettier
solution is on the way, and this at least funnels the ugliness into
a single location.
 1.9  10-Sep-2025  thorpej Do the #address-cells dance inside of_copy_spi_devs(), and make calling
it a bit simpler.
 1.8  10-Sep-2025  thorpej Remove pointless containment of SPI device array inside a dictionary
that never gets passed on to anyone.
 1.7  10-Sep-2025  thorpej - Const poison references to spi_controller.
- Don't make a copy of the spi_controller in the SPI bus softc; just take
a reference to the one we got from the back-end driver.
 1.6  10-Sep-2025  thorpej Register the SPI controller with FDT in spi_attach(), not in each
driver.
 1.5  10-Sep-2025  thorpej It is not necessary to pass the phandle separately to fdtbus_spi_*(); it
can be retrieved from the device_t.
 1.4  10-Sep-2025  thorpej Don't bother registering a function that returns a SPI controller; just
register the controller directly.
 1.3  07-Aug-2021  thorpej branches: 1.3.2;
Merge thorpej-cfargs2.
 1.2  24-Apr-2021  thorpej branches: 1.2.2; 1.2.8;
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?).
 1.1  13-Aug-2019  tnn branches: 1.1.8; 1.1.12;
fdt: add SPI controller frontend
 1.1.12.1  02-Apr-2021  thorpej config_found_ia() -> config_found() w/ CFARG_IATTR.
 1.1.8.2  13-Apr-2020  martin Mostly merge changes from HEAD upto 20200411
 1.1.8.1  13-Aug-2019  martin file fdt_spi.c was added on branch phil-wifi on 2020-04-13 08:04:19 +0000
 1.2.8.1  04-Aug-2021  thorpej Adapt to CFARGS().
 1.2.2.2  19-May-2021  thorpej - As with i2c, just register the spi_controller directly.
- fdtbus_attach_spibus() is no longer anything other than a wrapper
around config_found(); just get rid of it and make its callers
look like all of the other SPI controller drivers.
 1.2.2.1  18-May-2021  thorpej Define a "spi-enumerate-devices" device call and use it for direct
configuration of SPI devices, rather than slinging arrays of dictionaries
around. Implement this device call for OpenFirmware / FDT, following
the SPI bindings for Device Tree.
 1.3.2.2  18-Jan-2022  thorpej G/C fdtbus_register_spi_controller(); it serves no purpose in the new
universe.
 1.3.2.1  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.

RSS XML Feed