Re: [PATCH v6 1/4] Runtime Interpreted Power Sequences

On 09/13/2012 01:08 AM, Alex Courbot wrote:

On Thursday 13 September 2012 14:54:09 Tomi Valkeinen wrote:

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On Thu, 2012-09-13 at 15:36 +0900, Alex Courbot wrote:

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On Thursday 13 September 2012 14:22:57 Tomi Valkeinen wrote:

 
 

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However, I fear these board specific things may be quite a bit
anything,
so it may well be pwm, gpios and regulators are not enough for them.
For
example, there could be an FPGA on the board which requires some
configuration to accomplish the task at hand. It could be rather
difficult to handle it with a generic power sequence.

Right. Note that this framework is supposed to be extended - I would like
to at least add regulator voltage setting, and maybe even support for
clocks and pinmux (but that might be out of place).

Yes, that's one concern of mine... I already can imagine someone
suggesting adding conditionals to the power sequence data.

I took care of that when naming the feature - it is not a "sequence" anymore 
if you have conditionals. :P

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Perhaps also
direct memory read/writes so you can twiddle registers directly. And so
on. Where's the limit what it should contain? Can we soon write full
drivers with the DT data? =)

I shall be satisfied the day the kernel is released as one big DT node along 
with the 5KB interpreter that runs it.

I know you're joking, but *cough* OpenFirmware *cough*, right?