Re: [Letux-kernel] [PATCH 2/2] DTS: ARM: gta04: introduce legacy spi-cs-high to make display work again

From: H. Nikolaus Schaller
Date: Fri Sep 20 2019 - 11:50:13 EST



> Am 20.09.2019 um 17:29 schrieb Andreas Kemnade <andreas@xxxxxxxxxxxx>:
>
> On Fri, 20 Sep 2019 16:54:18 +0200
> "H. Nikolaus Schaller" <hns@xxxxxxxxxxxxx> wrote:
>
>>> Am 20.09.2019 um 16:20 schrieb Tony Lindgren <tony@xxxxxxxxxxx>:
>>>
>>> * H. Nikolaus Schaller <hns@xxxxxxxxxxxxx> [190920 09:19]:
>>>>> Am 20.09.2019 um 10:55 schrieb Linus Walleij <linus.walleij@xxxxxxxxxx>:
>>>>> I suggest to go both way:
>>>>> apply this oneliner and tag for stable so that GTA04 works
>>>>> again.
>>>>>
>>>>> Then for the next kernel think about a possible more abitious
>>>>> whitelist solution and after adding that remove *all* "spi-cs-high"
>>>>> flags from all device trees in the kernel after fixing them
>>>>> all up.
>>>>
>>>> Ok, that looks like a viable path.
>>>
>>> Please repost the oneline so people can ack easily. At least
>>> I've already lost track of this thread.
>>
>> It is all here:
>>
>> https://patchwork.kernel.org/patch/11035253/
>>
> It is the full one (incl. documentation), not the oneline and does not
> apply.

Looks as if it was sitting too long in the queue and linux-next has changed
the basis in the meantime, while v5.3 has not yet.

Documentation/devicetree/bindings/spi/spi-bus.txt -> spi-controller.yaml

So it should still apply for v5.3.1 and earlier and we need both versions.
One for stable and one for linux-next. I don't know how to handle such cases.

BR,
Nikolaus