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Message-id: <522A55D4.4000608@samsung.com>
Date: Fri, 06 Sep 2013 16:23:16 -0600
From: Shuah Khan <shuah.kh@...sung.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
akpm@...ux-foundation.org, stable@...r.kernel.org,
"shuahkhan@...il.com" <shuahkhan@...il.com>,
Shuah Khan <shuah.kh@...sung.com>
Subject: Re: [ 00/14] 3.4.61-stable review
On 09/06/2013 12:46 PM, Greg Kroah-Hartman wrote:
> On Fri, Sep 06, 2013 at 11:47:01AM -0600, Shuah Khan wrote:
>> On 09/05/2013 02:28 PM, Greg Kroah-Hartman wrote:
>>> This is the start of the stable review cycle for the 3.4.61 release.
>>> There are 14 patches in this series, all will be posted as a response
>>> to this one. If anyone has any issues with these being applied, please
>>> let me know.
>>>
>>> Responses should be made by Sat Sep 7 20:25:41 UTC 2013.
>>> Anything received after that time might be too late.
>>>
>>> The whole patch series can be found in one patch at:
>>> kernel.org/pub/linux/kernel/v3.0/stable-review/patch-3.4.61-rc1.gz
>>> and the diffstat can be found below.
>>>
>>> thanks,
>>>
>>> greg k-h
>>>
>>> -------------
>>
>>
>> 3.4.61-rc1 applied cleanly to 3.4.60
>>
>> Compiled and booted on the following systems:
>>
>> Samsung Series 9 900X4C Intel Corei5
>> HP ProBook 6475b AMD A10-4600M APU with Radeon(tm) HD Graphics
>>
>> dmesgs look good. No regressions compared to the previous dmesgs for
>> this release. dmesg emerg, crit, alert, err are clean. No
>> regressions in warn.
>
> Thanks for testing and letting me know.
>
>> Compile tested on Samsung Chromebook Exynos5 (ARMv7):
>> 3.4.60 compile fail - it is not a regression. Existing issue in
>> 3.4.y It has to do with missing config selections in
>> arch/arm/mach-exynos/Kconfig for this system. Debugging now using
>> the Kconfig selections from 3.10.y for this file.
>
> Is there a patch I can backport for this to work properly? I'd like to
> get some type of ARM coverage if possible.
>
> thanks,
>
> greg k-h
>
Greg,
I did some debugging and found 3.4 needs several patches to that made
exynos4 support common for exynos4 and exynos5. It appears some changes
made it into 3.4, at least changing the directory name from mach-exynos4
to mach-exynos, however the rest of the support is not in 3.4. I
identified the following commits:
6f9e95e6ed34ceff090ec1a1d27dfc85828d1dbd
60e49ca654eea42e04912b259fa36bad2c3e56ef
20ef9e08d27b3f5e09c32d4d371fa97f610a3069
b1b3f49ce4606452279b58b17f2bbe2ba00304b
Essentially every single commit that adds support for these config options:
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index b8df521..3be8f7c 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -61,6 +61,11 @@ config SOC_EXYNOS5250
bool "SAMSUNG EXYNOS5250"
default y
depends on ARCH_EXYNOS5
+ select PM_GENERIC_DOMAINS if PM
+ select S5P_PM if PM
+ select S5P_SLEEP if PM
+ select S5P_DEV_MFC
+ select SAMSUNG_DMADEV
help
Enable EXYNOS5250 SoC support
I am guessing you wouldn't want to make such extensive changes to 3.4 to
add full support for Chromebook.
3.10.y has full support for all of the above.
Thoughts. Agree with my assessment?
-- Shuah
--
Shuah Khan
Senior Linux Kernel Developer - Open Source Group
Samsung Research America(Silicon Valley)
shuah.kh@...sung.com | (970) 672-0658
--
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