From: Inki Dae <daeinki@gmail.com>
To: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Hoegeun Kwon <hoegeun.kwon@samsung.com>,
Thierry Reding <thierry.reding@gmail.com>,
robh@kernel.org, Dave Airlie <airlied@linux.ie>,
Kukjin Kim <kgene@kernel.org>,
DRI mailing list <dri-devel@lists.freedesktop.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-samsung-soc@vger.kernel.org"
<linux-samsung-soc@vger.kernel.org>,
Andrzej Hajda <a.hajda@samsung.com>,
Chanwoo Choi <cw00.choi@samsung.com>,
Jaehoon Chung <jh80.chung@samsung.com>,
Andi Shyti <andi.shyti@samsung.com>,
Donghwa Lee <dh09.lee@samsung.com>,
Hyungwon Hwang <human.hwang@samsung.com>
Subject: Re: [PATCH v8 2/3] drm/panel: Add support for S6E3HA2 panel driver on TM2 board
Date: Tue, 31 Jan 2017 21:58:55 +0900 [thread overview]
Message-ID: <CAAQKjZPknkhrpj_0TUS3=Z720Nu6mO7UMDy6RKceyu3OuaO8mQ@mail.gmail.com> (raw)
In-Reply-To: <CAJKOXPczttCexd4ZGHEFj=4-6a=9t1VsEmovPGmFFYHv1e5ZzQ@mail.gmail.com>
2017-01-31 20:30 GMT+09:00 Krzysztof Kozlowski <krzk@kernel.org>:
> On Tue, Jan 31, 2017 at 12:37 PM, Inki Dae <daeinki@gmail.com> wrote:
>> 2017-01-31 19:01 GMT+09:00 Krzysztof Kozlowski <krzk@kernel.org>:
>>> On Tue, Jan 31, 2017 at 11:34 AM, Inki Dae <inki.dae@samsung.com> wrote:
>>>>
>>>>
>>>> 2017년 01월 31일 18:22에 Krzysztof Kozlowski 이(가) 쓴 글:
>>>>> On Tue, Jan 31, 2017 at 2:01 AM, Inki Dae <inki.dae@samsung.com> wrote:
>>>>>>
>>>>>>
>>>>>> 2017년 01월 24일 10:50에 Hoegeun Kwon 이(가) 쓴 글:
>>>>>>> Dear Thierry,
>>>>>>>
>>>>>>> Could you please review this patch?
>>>>>>
>>>>>> Thierry, I think this patch has been reviewed enough but no comment from you. Seems you are busy. I will pick up this.
>>>>>>
>>>>>
>>>>> Comments from v8 were not resolved and I think we are waiting for v9:
>>>>> https://lkml.org/lkml/2017/1/11/178
>>>>>
>>>>> If that is not correct then please clarify.
>>>>
>>>> Seems you pointed to change te-gpios bindings to optional. right?
>>>>
>>>> I thought Rob left ack so it's no problem.
>>>> https://lkml.org/lkml/2017/1/13/626
>>>
>>> Yes, change them to optional. I think it is a problem (regardless of
>>> Rob's ack) because you are merging a driver requiring a property which
>>> soon you want to remove. If you merge it (like this) removal of
>>> te-gpios property will be breakage of ABI. This is not a serious
>>> problem but knowing such plan of te-gpios removal upfront, it would be
>>> wrong to commit such driver.
>>
>> This is a trivial thing so it doesn't make breakage of ABI because the
>> property, te-gpios, is *optional*.
>
> So why bindings document is not changed?
Seems Hoegeun missed this.
I also think it should specify *te-gpios is optional property* like
mipi-dsi binding document did but this doesn't breakage of ABI you
mentioned. And I'd like to say we should feel ABI breakage is a
serious problem.
Sad to say, Exynos is already broken like Marek declared. This is
really a serious problem Exynos maintainers have to fix including you
and me.
Thanks,
Inki Dae
>
> +Required properties:
> (...)
> + - te-gpios: a GPIO spec for the tearing effect synchronization signal
> + gpio pin (active high)
>
> Andrzej pointed this out and it is not fixed since then. What is the
> problem with fixing the bindings documentation?
>
>> Anyway, this wouldn't be *the things* Thierry mentioned.
>
> Probably not, I did not respond to Thierry's feedback.
>
> Best regards,
> Krzysztof
next prev parent reply other threads:[~2017-01-31 12:59 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20170111063407epcas5p2ffdcda0a9ab0e954f1e441c26403290b@epcas5p2.samsung.com>
2017-01-11 6:33 ` [PATCH v8 0/3] Add support for the S6E3HA2 panel on TM2 board Hoegeun Kwon
[not found] ` <CGME20170111063407epcas1p46379fc5062afe1268b186514969e225e@epcas1p4.samsung.com>
2017-01-11 6:33 ` [PATCH v8 1/3] dt-bindings: Add support for samsung s6e3ha2 panel binding Hoegeun Kwon
2017-01-11 7:43 ` Andrzej Hajda
2017-01-11 12:02 ` Chanwoo Choi
2017-01-13 17:29 ` Rob Herring
[not found] ` <CGME20170111063408epcas5p2e6ec091549c3ffed8462fd95d11d3c82@epcas5p2.samsung.com>
2017-01-11 6:33 ` [PATCH v8 2/3] drm/panel: Add support for S6E3HA2 panel driver on TM2 board Hoegeun Kwon
2017-01-24 1:50 ` Hoegeun Kwon
2017-01-31 0:01 ` Inki Dae
2017-01-31 8:54 ` Thierry Reding
2017-01-31 9:26 ` Inki Dae
2017-01-31 12:05 ` Andrzej Hajda
2017-02-02 17:58 ` Thierry Reding
2017-02-03 8:54 ` Andrzej Hajda
2017-02-03 8:58 ` Daniel Vetter
2017-02-06 9:12 ` Andrzej Hajda
2017-02-06 9:39 ` Daniel Vetter
2017-02-06 10:39 ` Thierry Reding
2017-02-07 9:53 ` Andrzej Hajda
2017-01-31 14:38 ` Sean Paul
2017-01-31 15:02 ` Thierry Reding
2017-01-31 15:49 ` Sean Paul
2017-01-31 21:17 ` Thierry Reding
2017-01-31 21:32 ` Emil Velikov
2017-01-31 18:15 ` Eric Anholt
2017-01-31 21:31 ` Thierry Reding
2017-01-31 22:54 ` Eric Anholt
2017-02-01 14:52 ` Thierry Reding
2017-02-01 15:29 ` Emil Velikov
2017-02-01 19:03 ` Sean Paul
2017-02-03 5:47 ` Inki Dae
2017-02-03 4:46 ` Inki Dae
2017-01-31 23:48 ` Inki Dae
2017-02-01 14:44 ` Thierry Reding
2017-02-02 12:44 ` Inki Dae
2017-02-02 19:52 ` Thierry Reding
2017-02-02 15:30 ` Jani Nikula
2017-02-02 16:48 ` Thierry Reding
2017-01-31 21:51 ` Thierry Reding
2017-02-02 14:24 ` Daniel Vetter
2017-01-31 9:22 ` Krzysztof Kozlowski
2017-01-31 9:34 ` Inki Dae
2017-01-31 10:01 ` Krzysztof Kozlowski
2017-01-31 10:37 ` Inki Dae
2017-01-31 11:30 ` Krzysztof Kozlowski
2017-01-31 12:58 ` Inki Dae [this message]
2017-02-01 5:47 ` Hoegeun Kwon
2017-02-09 8:20 ` Andi Shyti
[not found] ` <CGME20170111063408epcas1p4b29b1308a0b8088afd46a475770d4b00@epcas1p4.samsung.com>
2017-01-11 6:33 ` [PATCH v8 3/3] arm64: dts: exynos: Add support for S6E3HA2 panel device " Hoegeun Kwon
2017-01-11 7:46 ` Andrzej Hajda
2017-01-11 8:40 ` Inki Dae
2017-01-11 9:39 ` Andrzej Hajda
2017-01-11 10:23 ` hoegeun kwon
2017-01-11 10:28 ` Andrzej Hajda
2017-01-11 9:51 ` hoegeun kwon
2017-01-11 10:27 ` hoegeun kwon
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