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

H. Nikolaus Schaller hns at goldelico.com
Fri Sep 20 17:50:06 CEST 2019


> Am 20.09.2019 um 17:29 schrieb Andreas Kemnade <andreas at kemnade.info>:
> 
> On Fri, 20 Sep 2019 16:54:18 +0200
> "H. Nikolaus Schaller" <hns at goldelico.com> wrote:
> 
>>> Am 20.09.2019 um 16:20 schrieb Tony Lindgren <tony at atomide.com>:
>>> 
>>> * H. Nikolaus Schaller <hns at goldelico.com> [190920 09:19]:  
>>>>> Am 20.09.2019 um 10:55 schrieb Linus Walleij <linus.walleij at linaro.org>:
>>>>> 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



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