imx6 power consumption

Hi guys,

On Thu, 2013-12-19 at 09:15 +0100, Bj?rn Erik Nilsen wrote:

Hi Anson,

On Thu, 2013-12-19 at 03:28 +0100, Anson.Huang at freescale.com wrote:

quoted

Best Regards.
Anson huang ???
 
Freescale Semiconductor Shanghai
?????????192?A?2?
201203
Tel:021-28937058

quoted

-----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: Bj?rn 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, Bj?rn Erik Nilsen wrote:

quoted

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

I successfully managed to cherry-pick a handful of commits from
freescale 3.10 and got down to approximately half the consumption.
That's already very good news.

Looking forward to see these patches upstream. Will you be able upstream
them before 3.14 you think?

Any updates on this?