Hi Thomas, Thank you for your so quickly response! :)
According to your information, I prefer not to back-port those patches. @Angus, The waiting time is even longer than I thought: 3.1 - 3.2rc1, and looks like it's impossible to get 3.2 kernel in the Origen Android build before the end of 11.12. Would you estimate a time frame for the 3.2 kernel upgrade work? Then before that, I will focus on the other tasks of mine. Thank you! BR Botao Sun On Wed, Nov 30, 2011 at 12:20 PM, Thomas Abraham <thomas.abra...@linaro.org>wrote: > Hi Botao, > > On 30 November 2011 09:36, Botao Sun <botao....@linaro.org> wrote: > > Hi Angus & Grant, > > > > Because the Linaro Android 11.11 release has been done successfully, I > have > > some time to continue to work on device tree topic, here is my blue print > > for it: > > > > > https://blueprints.launchpad.net/linaro-android/+spec/linaro-android-origen-device-tree > > > > Therefore, I would like to know what I can do for this in the 11.12 > cycle - > > from now to the 18th December 2011. For Samsung Origen Android build, the > > latest kernel version I got is still 3.0.4+, so I think there is no any > > device tree stuff in it. > > > > @Angus, Would you give me a brief about the device tree support status on > > our current 3.0.4+ kernel? Will you upgrade it to the 3.1 in 11.12 cycle? > > > > @Thomas, In this blue print: > > > https://blueprints.launchpad.net/linaro-android/+spec/linaro-platforms-lc4.11-android-device-tree > , > > Tony mentioned that you has upstreamed the initial support for device > tree. > > However, it depends on the 3.1 kernel upgrade. I would like to know that > is > > there any possible that I can do something without the kernel upgrade? > > All the existing Exynos4210 device tree patches are based on > linux-3.2-rc1. There are about 35+ device tree support patches > covering about 10 peripherals. Most of these patches will not apply > cleanly to a previous version of the kernel. And in some cases, these > patches depend on other patches merged during 3.2 merge window (like > the GIC dt support). Though it might be possible to backport these > patches, the effort would huge and not recommended. > > Thanks, > Thomas. > > > > > I currently feel that this work highly depends on the outcome of landing > > team and kernel group, so before I get something from them, I'm afraid > that > > I can't do any "real" work on this. > > > > Thank you all for your help! > > > > > > BR > > Botao Sun > > > > >
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