Re: [PATCH 4/4] ARM64: dts: exynos5433: add jpeg node

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Dear Kukjin,

On 2015년 09월 30일 15:35, Kukjin Kim wrote:
> On 09/28/15 21:02, Krzysztof Kozlowski wrote:
>> W dniu 28.09.2015 o 20:54, Bartlomiej Zolnierkiewicz pisze:
>>>
>>> Hi,
>>>
>>> On Monday, September 28, 2015 05:52:13 PM Krzysztof Kozlowski wrote:
>>>> W dniu 21.09.2015 o 18:59, Andrzej Pietrasiewicz pisze:
>>>>> Hi Hans,
>>>>>
>>>>> W dniu 21.09.2015 o 11:50, Hans Verkuil pisze:
>>>>>> On 18-09-15 16:21, Andrzej Pietrasiewicz wrote:
>>>>>>> From: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
>>>>>>>
>>>>>>> Add Exynos 5433 jpeg h/w codec node.
>>>>>>>
>>>>>>> Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
>>>>>>> Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx>
>>>>>>> ---
>>>>>>>   arch/arm64/boot/dts/exynos/exynos5433.dtsi | 21 +++++++++++++++++++++
>>>>>>>   1 file changed, 21 insertions(+)
>>>>>>>
>>>>>>> diff --git a/arch/arm64/boot/dts/exynos/exynos5433.dtsi
>>>>>>> b/arch/arm64/boot/dts/exynos/exynos5433.dtsi
>>>>>>
>>>>>> This dtsi file doesn't exist in the media-git tree. What is the story
>>>>>> here?
>>>>>>
>>>>>> Should this go through a different subsystem?
>>>>>>
>>>>>> I think the media subsystem can take patches 1-3 and whoever does DT
>>>>>> patches can
>>>>>> take this patch, right?
>>>>>
>>>>> The cover letter explains that the series is rebased onto Mauro's
>>>>> master with Kukjin's branch merged. The latter does contain
>>>>> the exynos5433.dtsi. That said, yes, taking patches 1-3 in
>>>>> media subsystem and leaving DT patch to someone else is the
>>>>> way to go.
>>>>
>>>> Although Kukjin picked Exynos 5433 ARM64 patches but they were not
>>>> accepted upstream by arm-soc. He rolled it for few releases but:
>>>> 1. Reason for not accepting by arm-soc was not resolved - there is no DTS.
>>>> 2. Kukjin did not rebase the branch for 4.4... which maybe means that he
>>>> wants to drop it?
>>>> 3. Anyone (but me...) can send Galaxy Note4 (Exynos5433) DTS file based
>>>> on sources on opensource.samsung.com. The DTS there is for 32-bit but it
>>>> can be probably easily adjusted for ARM64.
>>>>
>>>> All of this means that Device Tree support for this driver can't be
>>>> merged now and effort for mainlining 5433 may be unfortunately wasted...
>>>
>>> Exynos5433 support is being incrementally merged (clocks, drm, phy,
>>> pinctrl, thermal and tty support is already in upstream or -next).
>>>
>>> I don't know why DTS changes got stuck in Kukjin's tree (Kukjin,
>>> could you please explain?) but I think that this shouldn't not stop
>>> us from continuing Exynos5433 upstreaming effort.
>>
>> I already explained. There is no DTS, so the pull request was rejected
>> (pull request for v4.0 I believe).
>>
> + Chanwoo Choi
> 
> Yes right, as Krzysztof commented, the pull-request has been rejected by
> arm-soc even I explained it has been tested on smdk5433, because it will
> not be compiled without relevant board DT file. And I've rebased when
> new -rc1 released until 4.3...because Chanwoo said at that time that
> regarding DT file will be submitted but not yet...
> 
> To be honest, I'm not sure I can keep the exynos5433 changes for v4.4 in
> my tree at this moment...

Thanks for your handling the exynos5433 patches on your tree.
But, I might not send the board DTS file for Exynos5433 SoC right now.
If I send the board DTS patches in the future, I'll send both board dts patches
and Exynos5433 SoC patches again.

Best Regards,
Chanwoo Choi

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