From: Ann Thornton <Ann.Thornton@freescale.com>
To: <meta-freescale@yoctoproject.org>
Subject: Re: [meta-fsl-arm][PATCH 3/4] linux-fslc-mx6 (3.14-1.0.x): Add recipe
Date: Thu, 18 Jun 2015 11:47:25 -0500 [thread overview]
Message-ID: <5582F61D.2040808@freescale.com> (raw)
In-Reply-To: <5582E4A1.5070108@mail.bg>
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Thanks for the kind words, Nikolay. We are trying to respond more quickly.
Ann Thornton
On 6/18/2015 10:32 AM, Nikolay Dimitrov wrote:
> Hi Daiane, Otavio,
>
> On 06/18/2015 04:58 PM, Otavio Salvador wrote:
>> On Thu, Jun 18, 2015 at 10:40 AM, Daiane Angolini
>> <daiane.list@gmail.com> wrote:
>>> On Wed, Jun 17, 2015 at 4:45 PM, Otavio Salvador
>>> <otavio@ossystems.com.br> wrote:
>>>> On Wed, Jun 17, 2015 at 4:25 PM, Nikolay Dimitrov
>>>> <picmaster@mail.bg> wrote:
>>>>> So, in terms of functionality this kernel sits somewhere
>>>>> between mainline and FSL releases, is that correct?
>>>>
>>>> Yes; it is FSL release + stable releases + vendor/community
>>>> fixes
>>>
>>> I've been thinking about this issue. And this provider (for imx6
>>> only) may make sense to have "fslc" sufix, exactly because it has
>>> freescale + community patches
>>>
>>> However, the other (currently linux-fslc) does not make sense.
>>> Maybe linux-cmt makes more sense today.
>>>
>>> I remember one of the arguments to not use only "linux" and use a
>>> prefix was that it's not a pure mainline provider (it clones from
>>> github) and because it leave the "linux" only for internal kernels
>>>
>>> Any other suggestion?
>>
>> I think we need to consider some things here:
>>
>> linux-fslc is a kernel tree we maintain u-boot-fslc is a u-boot tree
>> we maintain
>>
>> both have same goals and the idea is to provide a place to share
>> patches and backports.
>>
>> The motivation to make the 3.14 is because FSL is not taking the
>> fixes and security updates from stable, so a place to merge those
>> seems to be beneficial. I don't want a plethora of names as it makes
>> harder for people to contribute and share work so I propose two
>> solutions:
>>
>> linux-fslc_4.0.bb linux-fslc-mx6_3.14-1.0.x.bb
>>
>> or
>>
>> linux-fslc_4.0.bb linux-fslc_3.14-1.0.x-mx6.bb
>>
>> Both works.
>
> Thanks for sharing your ideas, this helps me to understand somewhat
> better the motivation behind creating these linux kernel providers.
>
> So, my comments are not to oppose any changes/improvements at all, but
> just to add a more global perspective on where the Yocto kernel
> providers fit in the long chain between mainline and the OEM:
>
> 1. linux-mainline
> -----------------
> Good generic imx6 support, no support for ASRC, VPU. Regarding the GPU -
> Jon Nettleton is working on the etnaviv code, so probably some day we'll
> have a fully open GPU support there. Until then - no GPU support in
> mainline, only basic FB on hdmi/lvds (parallel lcd probably also works,
> but I haven't tested it). Supported by the kernel developers.
>
> 2. linux-fslc
> -------------
> Almost mainline. Here we collect patches that either will take very long
> to be applied in mainline, or are inappropriate for mainline (but still
> useful for Yocto users). As stability and features should be as good
> mainline, if not slightly better due to custom fixes for Yocto.
> Supported by Yocto community.
>
> 3. linux-as-proposed-by-otavio
> ------------------------------
> Man-in-the middle. Forward-ported FSL code, back-ported important
> patches from mainline. Probably something like "linux-imx-next". Who
> will support this code?
>
> 4. linux-imx
> ------------
> THE FSL kernel. Freescale's team is doing a great job, and there are
> more or less regular releases with good overall quality. It's quite
> normal/expected that this kernel version will always lag behind
> mainline. One thing which bothers me is that there's no way for the
> community to interact with the FSL BSP team, which means no transparent
> way to submit/track/resolve issues. This same role is currently being
> played by the Yocto community due to several individuals who have
> internal access to the FSL BSP team and can help pushing through issues.
> Supported by Yocto community (including FSL engineers).
>
>
> So, even if I like the idea that #3 will have newer code than #4, the
> main question is who will support it (support means both development and
> validation)?
>
> Regards,
> Nikolay
--
Ann Thornton
/Microcontrollers Software and Applications
Freescale Semiconductors
email: Ann.Thornton@freescale.com/
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next prev parent reply other threads:[~2015-06-18 16:47 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-17 18:02 [meta-fsl-arm][PATCH 1/4] core-image-weston: Fail gracefully if using incompatible DISTRO_FEATURES Otavio Salvador
2015-06-17 18:02 ` [meta-fsl-arm][PATCH 2/4] fsl-default-providers.inc: Move content to imx-base.inc and mxs-base.inc Otavio Salvador
2015-06-17 18:33 ` Nikolay Dimitrov
2015-06-17 18:38 ` Otavio Salvador
2015-06-17 19:27 ` Nikolay Dimitrov
2015-06-17 18:02 ` [meta-fsl-arm][PATCH 3/4] linux-fslc-mx6 (3.14-1.0.x): Add recipe Otavio Salvador
2015-06-17 18:28 ` Nikolay Dimitrov
2015-06-17 18:30 ` Otavio Salvador
2015-06-17 18:38 ` Nikolay Dimitrov
2015-06-17 18:39 ` Otavio Salvador
2015-06-17 19:25 ` Nikolay Dimitrov
2015-06-17 19:32 ` Daiane Angolini
2015-06-17 19:45 ` Otavio Salvador
2015-06-18 13:40 ` Daiane Angolini
2015-06-18 13:58 ` Otavio Salvador
2015-06-18 15:32 ` Nikolay Dimitrov
2015-06-18 16:21 ` Otavio Salvador
2015-06-18 16:38 ` Nikolay Dimitrov
2015-06-18 16:47 ` Otavio Salvador
2015-06-18 16:47 ` Ann Thornton [this message]
2015-06-18 17:10 ` Nikolay Dimitrov
2015-06-18 17:40 ` Otavio Salvador
2015-06-17 18:02 ` [meta-fsl-arm][PATCH 4/4] imx-base.inc: Use linux-fslc-mx6 for all i.MX6 by default Otavio Salvador
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