[PATCH v6 0/7] ARM: OMAP2+: PM: introduce the power domains functional states

Jean Pihet jean.pihet at newoldbits.com
Tue Sep 18 12:51:23 EDT 2012

Hi Paul,

On Thu, Sep 13, 2012 at 9:04 AM, Jean Pihet <jean.pihet at newoldbits.com> wrote:
> On Thu, Sep 13, 2012 at 2:34 AM, Kevin Hilman
> <khilman at deeprootsystems.com> wrote:
>> Jean Pihet <jean.pihet at newoldbits.com> writes:
>>> Here is a re-spin after some comments and suggestions after review
>>> and discussions.
Did you have a chance to look at the series?


>>> Implement the functional states for the power domains:
>>> - unify the API to use the functional states. The new API
>>>   consists of the pwrdm_set*_fpwrst and pwrdm_read*_fpwrst
>>>   functions and is the API to use to control the power domains
>>>   power and logic states,
>>> - reorganize the powerdomain API in internal and external parts,
>>>   in powerdomain.h [1]
>>> - protect the power domain state change by a lock in the
>>>   functions that read and set the powerdomains next functional state,
>>> - introduce the functional states for power domains power states and
>>>   logic power states [2], and the conversion functions between the
>>>   functional and internal states. The conversion functions are
>>>   lightweight and generic. The power domains allowed states [3] are
>>>   defined in the pwrsts and pwrsts_logic_ret fields of the struct
>>>   powerdomain,
>>> - program the logic power state of power domains from the functional
>>>   states, in pwrdm_set*_fpwrst
>>> - convert the OMAP2/3/4 PM code to use the updated API,
>>> - provide the power domains statistics by functional states,
>>> - provide ftrace tracepoints with the functional state,
>>> - provide error logs in critical code, which makes the development
>>>   easier.
>> I just gave this series a round of PM testing.  I tested retention
>> and off in idle & suspend, with and without CPUidle on 3430/n900,
>> 3530/Overo, 3730/OveroSTORM, 3730/Beagle-xM and 4430/Panda (though only
>> MPU/CPU ret/off is supported for OMAP4 in mainline.)
>> All PM tests passed with flying colors.  Nice!
> Great!
> Thanks a lot Kevin for testing
> Jean
>> Kevin

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