From mboxrd@z Thu Jan 1 00:00:00 1970 From: Przemyslaw Marczak Date: Wed, 05 Nov 2014 10:27:33 +0100 Subject: [U-Boot] [PATCH 2/4] imx: mx6slevk: Add PMIC Pfuze support In-Reply-To: <5459DFB3.6090907@freescale.com> References: <1410340097-19804-1-git-send-email-B37916@freescale.com> <1410340097-19804-2-git-send-email-B37916@freescale.com> <545214A8.8010405@denx.de> <54589B30.9020500@freescale.com> <54589E41.20508@freescale.com> <5458DE19.50204@samsung.com> <5459DFB3.6090907@freescale.com> Message-ID: <5459ED85.50802@samsung.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hello Ye Li, On 11/05/2014 09:28 AM, Li Ye-B37916 wrote: > Hi Przemyslaw, > > On 11/4/2014 10:09 PM, Przemyslaw Marczak wrote: >> 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 >>>>>> --- >>>>> 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, > > My patches don't add any new PMIC driver. The PFUZE100 driver already exists in present u-boot. We just call the driver to apply new settings for PFUZE100. > According to your plan, can you help to figure out which phase the PMIC development is at now? I feel my patches won't conflict with your job before phase 3. > If there is no conflict, I will continue the upstream. > > Best regards, > Ye Li > > . > Ok, so the code from github link(also can be found on the list), adds API for two PMIC uclasses: PMIC and REGULATOR - both are implemented by MAX77686 driver and enabled for Trats2 and Odroid boards. It was RFC patchset, but is fully functional. It's hard to say when exactly I can send next version - it's not the only task. There are no conflicts, so please continue your work. Best Regards, -- Przemyslaw Marczak Samsung R&D Institute Poland Samsung Electronics p.marczak at samsung.com