[U-Boot] [PATCH 2/4] imx: mx6slevk: Add PMIC Pfuze support

[Przemyslaw Marczak]

Hello Ye Li,

On 11/04/2014 10:37 AM, Li Ye-B37916 wrote:
>
> Hi Przemyslaw,
>
> On 11/4/2014 5:24 PM, Li Ye-B37916 wrote:
>> Hi Przemyslaw,
>>
>>
>> On 10/30/2014 6:36 PM, Stefano Babic wrote:
>>> Hi Ye,
>>>
>>> On 10/09/2014 11:08, Ye.Li wrote:
>>>> Initialize the Pfuze on I2C1 at board late init. The mx6slevk board
>>>> has Pfuze100 or Pfuze200, print the chip type by parsing the ID.
>>>>
>>>> Signed-off-by: Ye.Li <B37916 at freescale.com>
>>>> ---
>>> Slowly (sorry for that..) I am checking again all PMIC related patches
>>> you sent last month. However, these patches do not fit very well in the
>>> current development.
>>>
>>> In the last U-Boot mini summit we get the decision to post new PMIC
>>> drivers according to the Device Model rules. Przemyslaw is the new
>>> custodian for PMICs, and he will take care of all related issues
>>> regarding power management.
>> Can you share me more information about the new PMIC drivers development that Stefano mentioned above.
>> 1. Have you completed the APIs define for new PMIC drivers?  If yes, where I can get them.
>> 2. When will the new PMIC drivers deliver?
>> 3. Will the PMIC devices already supported in current release stay supported by new PMIC drivers?
>>

The work on new PMIC framework was temporary on hold.
Now I'm working on it, but the basic functionality is actually done.
The first version you can check here:
https://github.com/bobenstein/u-boot.git
I need to make some rework, since the i2c is going to support the driver 
model.

I can now focus on this work. And this will be merged through u-boot-dm 
- since i2c support is added.

The plan is simple:
1) Add new drivers to the present PMIC framework - before merge the new one.
2) Add new PMIC framework as a separated piece of code.
3) Migrate old drivers and boards to the new framework.
4) Remove the old framework without any conflicts.

So it's not a problem if you want add this driver, we add this to the 
current framework - the migration should be simple and will not cause 
conflicts.

If you are interested in the new PMIC framework design, please read the 
doc file added by the patches from the link above.

You can implement just one class(UCLASS_PMIC), and if you need user 
friendly interface it is welcome to implement also UCLASS_PMIC_REGULATOR.

Please follow the list, maybe I will send the patches at the end of this 
week.

... [ snip ] ...


Best regards,
-- 
Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
p.marczak at samsung.com