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    [PATCH] 3/5 powerpc: Add platform functions interpreter · 5b9ca526
    Benjamin Herrenschmidt 提交于
    This is the platform function interpreter itself along with the backends
    for UniN/U3/U4, mac-io, GPIOs and i2c. It adds the ability to execute
    those do-platform-* scripts in the device-tree (at least for most
    devices for which a backend is provided). This should replace the clock
    spreading hacks properly. It might also have an impact on all sort of
    machines since some of the scripts marked "at init" will now be executed
    on boot (or some other on sleep/wakeup), those will possibly do things
    that the kernel didn't do at all, like setting some values into some i2c
    devices (changing thermal sensor calibration or conversion rate) etc...
    Thus regression testing is MUCH welcome. Also loook for errors in dmesg.
    That's also why I've left rather verbose debugging enabled in this
    version of the patch.
    
    (I do expect some Windtunnel G4s to show some errors as they have an i2c
    clock chip on the PMU bus that uses some primitives that the i2c backend
    doesn't implement yet. I really need users that have one of those
    machine to come back to me so we can get that done right, though the
    errors themselves should be harmless, I suspect the machine might not
    run at full speed).
    Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
    Signed-off-by: NPaul Mackerras <paulus@samba.org>
    5b9ca526
Makefile 528 字节