February 2012 Kernel Release

Kukjin Kim kgene.kim at samsung.com
Sat Feb 18 01:59:19 UTC 2012


Amit Kachhap wrote:
> 
> Hi Amit Kucheria,
> 
Hi all,

(Cc'ed Jaecheol Lee and Jongpill Lee)

> I have asked the samsung maintainer(Kukjin Kim) to queue this patch set 1
> month back. But seems like it is not present.
> 

If it works fine, then I'm apply this series.

But now it is not working. As a note, I use your series on top of v3.3-rc3
and fixed following for test.

arch/arm/mach-exynos/cpuidle.c: In function 'exynos4_enter_core0_aftr':
arch/arm/mach-exynos/cpuidle.c:119: error: implicit declaration of function
'BSYM'
make[1]: *** [arch/arm/mach-exynos/cpuidle.o] Error 1

I and Jaecheol Lee tested AFTR mode on SMDKV310 and SMDKC210 and then
rebooting happened.
See below log.

If any updates, please let me know.

---

Booting Linux on physical CPU 0
Linux version 3.3.0-rc3-00005-g20ea355-dirty (kgene at starstone) (gcc version
4.4.1 (Sourcery G++ Lite 2009q3-67) ) #2 SMP PREEMPT Sat Feb 18 09:15:42 KST
2012
CPU: ARMv7 Processor [412fc091] revision 1 (ARMv7), cr=10c5387d
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
Machine: SMDKV310
Memory policy: ECC disabled, Data cache writealloc
CPU EXYNOS4210 (id 0x43210010)

[snip]

[root at Samsung ~]# cd /sys/devices/system/cpu/cpu0/cpuidle/
[root at Samsung cpuidle]# ls
state0/ state1/
[root at Samsung cpuidle]# cd state1
[root at Samsung state1]# ls
desc     latency  name     power    time     usage
[root at Samsung state1]# cat name
C1
[root at Samsung state1]# cat time
0
[root at Samsung state1]# echo 0 > /sys/devices/system/cpu/cpu1/online
CPU1: shutdown
[root at Samsung state1]# ðK

U-Boot 2010.12-00009-g300b392 (Jul 15 2011 - 16:39:20) for SMDKV310
...

[snip]

Starting kernel ...

Uncompressing Linux... done, booting the kernel.
Booting Linux on physical CPU 0
Linux version 3.3.0-rc3-00005-g20ea355-dirty (kgene at starstone) (gcc version
4.4.1 (Sourcery G++ Lite 2009q3-67) ) #2 SMP PREEMPT Sat Feb 18 09:15:42 KST
2012
CPU: ARMv7 Processor [412fc091] revision 1 (ARMv7), cr=10c5387d
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
Machine: SMDKC210

[snip]

Samsung SMDK Board on a armv7l
Samsung login: root
login[1002]: root login on 'ttySAC1'
[root at Samsung ~]#
[root at Samsung ~]#
[root at Samsung ~]#
[root at Samsung ~]#
[root at Samsung ~]# echo 0 > /sys/devices/system/cpu/cpu1/online
CPU1: shutdown
[root at Samsung ~]# O

[snip] (as a note, the mark of 'O' means 'OK' printing from u-boot.

Thanks.

Best regards,
Kgene.
--
Kukjin Kim <kgene.kim at samsung.com>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.



> 
> Hi Mr Kim,
> 
> Can you please queue this patchset in your tree for next merge window?
> The V5 version submitted fixes all the known issues.
> http://lists.infradead.org/pipermail/linux-arm-kernel/2012-
> January/079214.html
> 
> Thanks,
> Amit Daniel
> 
> 
> On 17 February 2012 11:42, Amit Kucheria <amit.kucheria at linaro.org> wrote:
> > On Fri, Feb 17, 2012 at 11:03 AM, Deepak Saxena <dsaxena at linaro.org>
> wrote:
> >
> >> - Various patches from Linaro
> >>
> >>  * samsung_cpuidle_l2_retention patch set from the power management
> >> WG
> >
> > Amit, is this now in your maintainer's tree queued up for 3.4?




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