This is a moderately tested working gpio driver for the Exynos based ODROID
XU4. To use this you have to edit the dtd file exynos54422-pinctrl.dtsi
and change the two occurances of 'gpz' to 'gpz0'. Otherewise it will crash
on a lookup failure.
It certainly could use a code review.
- Whitespace cleanup
- Pass a filename rather than fd to libarchive (should work with 2.8+)
- Accept zipfiles from stdin
- Extract common code from extract()/extract_stdout() to extract2fd() (pending)
sys/time.h. The Solaris compat code in sys/time.h wants to use it in an
inline function, but misses a prototype (and the relabeling). As stopgap
for getting consistent defines of clock_gettime duplicate the prototype
here.
step N of N: get rid of baggage by removing whole files. What's left is in
approximately the same shape as when the FDT update started, that is mostly
broken. What's missing is most of the 76 devices recognized in the dtd. In
other words, This is barely the start of a port.
Next up, gpio then i2c, followed either by straightening out usb or getting
the sdhc driver to work -- both probably require getting the interrupt
combiner to work first. A large chunk of work is left to do on the clocks.
I barely got them attaching to fdt and didn't do anything to take advantage
of the information in the dtd.
None of the other existing drivers, such as they are, properly request gpios,
i2c or clocks, and, of course power domains are off the table.
There is a minimum conversion on the clock driver.
The USB driver needs reordering and is broken, but it was broken before.
Next up: tactical nuclear weapons
It is rather amazing that XU4 gets as far as it does, given how much of this
code simply doesn't work. Focusing now on getting everything converted to
FDT. Next up USB and clocks. After that nuke everything that's not needed
and start the port in earnest.
list of future callbacks. We've already processed the list (and removed
all the entries), and there's nothing in the future that will process
the list again.
This avoids the possibility of leaving an entry in the list that points
to an unloaded module's former address space.
