imx6 power consumption

[Anson.Huang at freescale.com]

Best Regards.
Anson huang 黄勇才
 
Freescale Semiconductor Shanghai
上海浦东新区亮景路192号A座2楼
201203
Tel:021-28937058


>-----Original Message-----
>From: linux-arm-kernel [mailto:linux-arm-kernel-bounces at lists.infradead.org]
>On Behalf Of Shawn Guo
>Sent: Wednesday, December 18, 2013 7:33 PM
>To: Bjørn Erik Nilsen
>Cc: linux-arm-kernel at lists.infradead.org
>Subject: Re: imx6 power consumption
>
>On Wed, Dec 18, 2013 at 12:12:05PM +0100, Bjørn Erik Nilsen wrote:
>> As far as I can tell, commit e95dddb34c8 "ARM: imx: enable anatop
>> suspend/resume" is the common ancestor for mainline and freescale, and
>> from there pm-imx6q.c starts to diverge.
>>
>> I haven not looked at it in great detail yet, but it seems there are
>> not too many patches missing in mainline. Any idea why remaining
>> patches haven't been upstreamed?
>
>Probably because no one cares and would spend time to upstream these patches.

This root cause is we did NOT put the DSM code in IRAM and free DDR IO in DSM.
We have done this in our internal v3.10 kernel, so I will do the upstream soon,
Below is the DSM number of i.MX6Q SabreSD we got on v3.10 release:

VDDARM_IN(R27)             0mA at 0.97V
VDDSOC_IN(R21)             4.2 at 0.97V
DDR(R25)                   14.8mA at 1.5V
VDDHIGH_IN + SNVS(SH17)    0.35mA at 2.98V, 0.9mA

Anson 


>
>Shawn
>
>>
>> If it is just a matter of someone doing the work, what would be the
>> recommended approach?
>>
>>
>> Best regards,
>> Bjørn Erik Nilsen
>>
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>
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