Hi,

On Tue, Jan 6, 2015 at 12:15 AM, Maxime Ripard
<[email protected]> wrote:
> Hi Chen-Yu,
>
> On Wed, Dec 24, 2014 at 11:29:26PM +0800, wens Tsai wrote:
>> Hi everyone,
>>
>> As some of you might have noticed, I've sent out patches for A80 MMC
>> and AXP20x.  In addition, I've picked up Boris' AXP221 patches to
>> resend after the AXP patches are merged.
>
> Thanks for your amazing work.
>
>> The following is a list of things I'm working on or waiting to
>> submit:
>>
>>     - AXP20x (PEK and docs) series, originally by Carlo, posted v8
>>     - AXP20x regulator driver cleanup, finished and tested
>
> What is left to be posted, besides the DT bits?

This is actually getting rid of the DT parsing code in the regulator
driver, and using common code in the regulator core added in 3.19-rc1.
So this is new.

>>     - AXP221 support, originally by Boris, finished and tested
>>       * Also enables WiFi on the Hummingbird A31
>
> There was some discussion since for some board (maybe the APP4) we had
> some circular dependency between the regulators exposed by the
> PMIC. Has that been taken care of?

The work Boris has done on that doesn't mesh well with the previous
item. For now I've dropped that bit. The dependency is ELDOs are
powered from DCDC1, which is a fairly simple dependency. I think
we can get around it by registering the DCDC ones first.

>>     - sunxi (sun[457]i) cpufreq support, finished and testing (CB/CB2 tested)
>>       * Only added support for the boards I own. It's just a matter of adding
>>         the regulator nodes with the proper constraints
>
> Did you test individual OPPs or global ones (ie per-board or per-SoC)?
> Eventually, I'd like to have per-SoC OPPs. It doesn't seem that
> undoable from the spreadsheet I shared with you.

I've tested per-SoC OPPs with the boards I have using the hardware reliability
test on the wiki [1]. Doing per-board OPPs should be as simple as overriding
the OPP table in the board dts. As I will state in the series cover letter,
for sun[457]i the OPPs are the same or very similar.

For sun6i it is somewhat harder.

[1] 
http://linux-sunxi.org/Hardware_Reliability_Tests#Reliability_of_cpufreq_voltage.2Ffrequency_settings

>>     - sun6i cpufreq support, WiP
>>     - sun8i cpufreq support, minimal work only
>>     - sun9i mmc support, posted v2
>>     - sun9i usb support, v3 WiP
>>     - RSB driver, not working yet
>>
>> All the above, excluding RSB, can be found in my repository:
>> https://github.com/wens/linux
>> Each topic is a separate branch, except for the AXP branches, which
>> have dependencies.
>>
>> Testing and feedback is more than welcome.
>
> Again, thanks a lot for your efforts.

You're more than welcome. The work put in earlier by others shouldn't
be left to waste. I'd like to see them through. :)


Cheers
ChenYu

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